:root{color-scheme:light dark;--brand: #1d78f2;--brand-solid: #1463d0;--brand-dark: #0d52b8;--brand-light: #1565d8;--brand-bg: rgba(29, 120, 242, .1);--brand-border: rgba(29, 120, 242, .24);--surface-base: #f4f2ed;--surface-sunken: #e9e5de;--surface-raised: #ffffff;--surface-inset: #f6f4f0;--surface-header: rgba(244, 242, 237, .85);--text-primary: #23211e;--text-secondary: #635f58;--text-tertiary: #6a645a;--text-accent: var(--brand-light);--text-on-brand: #ffffff;--border-subtle: #e6e2da;--border-strong: #dcd7cd;--focus-ring: var(--brand);--accent-green: #0a7544;--accent-amber: #855b00;--accent-red: #b7332c;--shadow-card: 0 1px 2px rgba(35, 33, 30, .04), 0 8px 24px -12px rgba(35, 33, 30, .1);--shadow-raised: 0 2px 6px rgba(35, 33, 30, .06), 0 16px 48px -16px rgba(35, 33, 30, .14);--font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "Monaco", "Menlo", ui-monospace, monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.1875rem;--text-xl: 1.5rem;--text-2xl: 2rem;--text-3xl: clamp(2.25rem, 1.4rem + 3.4vw, 3.5rem);--weight-regular: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--leading-tight: 1.15;--leading-snug: 1.35;--leading-normal: 1.6;--tracking-tight: -.02em;--tracking-normal: 0;--tracking-wide: .12em;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-7: 2rem;--space-8: 3rem;--space-9: 4rem;--space-10: 6rem;--radius-xs: 6px;--radius-sm: 10px;--radius-md: 12px;--radius-lg: 16px;--radius-card: 18px;--radius-surface: 22px;--radius-full: 999px;--ease-out: cubic-bezier(0, 0, .2, 1);--ease-in-out: cubic-bezier(.42, 0, .58, 1);--motion-fast: .2s;--motion-base: .3s;--motion-slow: .35s;--measure-wide: 72rem;--measure-text: 42rem;--header-height: 4rem}@media(prefers-color-scheme:dark){:root{--brand-light: #4da6ff;--brand-bg: rgba(29, 120, 242, .14);--brand-border: rgba(29, 120, 242, .28);--surface-base: #1f1e1d;--surface-sunken: #151413;--surface-raised: #262624;--surface-inset: #1e1d1c;--surface-header: rgba(31, 30, 29, .85);--text-primary: #faf9f5;--text-secondary: #b4b1a9;--text-tertiary: #8a8780;--border-subtle: #3a3937;--border-strong: #46443f;--accent-green: #00d26a;--accent-amber: #fbbf24;--accent-red: #f87171;--shadow-card: 0 1px 2px rgba(0, 0, 0, .35), 0 8px 24px -12px rgba(0, 0, 0, .5);--shadow-raised: 0 2px 6px rgba(0, 0, 0, .4), 0 16px 48px -16px rgba(0, 0, 0, .55)}}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}body{min-height:100dvh;display:flex;flex-direction:column;background:var(--surface-base);color:var(--text-primary);font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);font-synthesis-weight:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}img,picture,svg,video{display:block;max-width:100%}input,button,textarea,select{font:inherit;color:inherit}h1,h2,h3,h4{text-wrap:balance;font-weight:var(--weight-semibold);line-height:var(--leading-tight);letter-spacing:var(--tracking-tight)}p,li{text-wrap:pretty}a{color:inherit;text-decoration-color:var(--border-strong);text-underline-offset:.2em;transition:color var(--motion-fast) var(--ease-out)}a:hover{color:var(--text-accent)}:focus-visible{outline:2px solid var(--focus-ring);outline-offset:3px;border-radius:var(--radius-xs)}.wrap{width:100%;max-width:var(--measure-wide);margin-inline:auto;padding-inline:var(--space-5)}@media(min-width:48rem){.wrap{padding-inline:var(--space-7)}}main{flex:1 0 auto}section{scroll-margin-top:var(--space-9)}.band{padding-block:var(--space-9);border-top:1px solid var(--border-subtle)}.band:first-child{border-top:0}@media(min-width:48rem){.band{padding-block:var(--space-10)}}.prose{max-width:var(--measure-text)}.prose>*+*{margin-block-start:var(--space-4)}.prose h2{margin-block-start:var(--space-8);font-size:var(--text-xl)}.prose h3{margin-block-start:var(--space-6);font-size:var(--text-lg)}.prose ul,.prose ol{padding-inline-start:var(--space-5)}.prose li+li{margin-block-start:var(--space-2)}.prose a{color:var(--text-accent)}.skip-link{position:absolute;inset-inline-start:var(--space-4);inset-block-start:calc(-1 * var(--space-10));z-index:100;padding:var(--space-3) var(--space-4);background:var(--surface-raised);border:1px solid var(--border-strong);border-radius:var(--radius-sm);text-decoration:none;transition:inset-block-start var(--motion-fast) var(--ease-out)}.skip-link:focus{inset-block-start:var(--space-4)}.sprite-sheet{position:absolute;width:0;height:0;overflow:hidden}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.site-header{position:sticky;top:0;z-index:50;background:var(--surface-header);backdrop-filter:saturate(1.6) blur(12px);border-bottom:1px solid var(--border-subtle)}.header-inner{display:flex;align-items:center;gap:var(--space-5);min-height:var(--header-height)}.brand{display:inline-flex;align-items:center;gap:var(--space-3);text-decoration:none;font-weight:var(--weight-semibold);letter-spacing:var(--tracking-tight)}.brand-mark{width:1.75rem;height:1.75rem;flex:none}.site-nav{margin-inline-start:auto}.site-nav ul{display:flex;gap:var(--space-5);list-style:none;padding:0}.site-nav a{text-decoration:none;font-size:var(--text-sm);color:var(--text-secondary)}.site-nav a:hover,.site-nav a[aria-current=page]{color:var(--text-primary)}.lang-switch{font-size:var(--text-sm);color:var(--text-secondary);text-decoration:none;padding:var(--space-2) var(--space-3);border:1px solid var(--border-subtle);border-radius:var(--radius-full);white-space:nowrap}.lang-switch:hover{border-color:var(--border-strong);color:var(--text-primary)}@media(max-width:47.999rem){.header-inner{flex-wrap:wrap;padding-block:var(--space-3);row-gap:var(--space-3)}.site-nav{order:3;width:100%;margin-inline-start:0;overflow-x:auto;scrollbar-width:none}.site-nav::-webkit-scrollbar{display:none}.site-nav ul{gap:var(--space-4)}.lang-switch{margin-inline-start:auto}}.site-footer{margin-block-start:var(--space-10);padding-block:var(--space-8) var(--space-6);border-top:1px solid var(--border-subtle);background:var(--surface-sunken);font-size:var(--text-sm);color:var(--text-secondary)}.footer-grid{display:grid;gap:var(--space-7);grid-template-columns:1fr}@media(min-width:40rem){.footer-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:64rem){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}}.footer-col ul{list-style:none;padding:0;display:grid;gap:var(--space-2)}.footer-col a{text-decoration:none}.footer-heading{font-size:var(--text-xs);font-weight:var(--weight-semibold);text-transform:uppercase;letter-spacing:var(--tracking-wide);color:var(--text-tertiary);margin-block-end:var(--space-3)}.footer-legal-name{font-weight:var(--weight-semibold);color:var(--text-primary);margin-block-end:var(--space-3)}.footer-address{font-style:normal;display:grid;gap:.15em}.footer-meta{margin-block-start:var(--space-7);padding-block-start:var(--space-5);border-top:1px solid var(--border-subtle);display:flex;flex-wrap:wrap;gap:var(--space-4) var(--space-6);align-items:baseline;justify-content:space-between;font-size:var(--text-xs);color:var(--text-tertiary)}.company-details{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-6);margin:0}.company-details>div{display:flex;gap:var(--space-2)}.company-details dt{color:var(--text-tertiary)}.company-details dt:after{content:":"}.company-details dd{margin:0;color:var(--text-secondary)}.footer-copyright{margin:0}.eyebrow{font-size:var(--text-xs);font-weight:var(--weight-bold);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--text-tertiary)}:lang(zh) .eyebrow{text-transform:none;letter-spacing:.02em}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);border:1px solid transparent;font-size:var(--text-sm);font-weight:var(--weight-semibold);text-decoration:none;white-space:nowrap;transition:background-color var(--motion-fast) var(--ease-out),border-color var(--motion-fast) var(--ease-out),color var(--motion-fast) var(--ease-out)}.btn-primary{background:var(--brand-solid);color:var(--text-on-brand)}.btn-primary:hover{background:var(--brand-dark);color:var(--text-on-brand)}.btn-ghost{border-color:var(--border-strong);color:var(--text-primary)}.btn-ghost:hover{border-color:var(--brand);color:var(--brand-light)}.section-heading{font-size:var(--text-xl)}.section-lead{margin-block-start:var(--space-3);max-width:var(--measure-text);color:var(--text-secondary)}.card-grid{display:grid;gap:var(--space-5);margin-block-start:var(--space-7);grid-template-columns:1fr}@media(min-width:44rem){.card-grid{grid-template-columns:repeat(auto-fit,minmax(17rem,1fr))}}.card{padding:var(--space-6);background:var(--surface-raised);border:1px solid var(--border-subtle);border-radius:var(--radius-card);box-shadow:var(--shadow-card)}.card h3{font-size:var(--text-lg)}.card p{margin-block-start:var(--space-3);color:var(--text-secondary);font-size:var(--text-sm);line-height:var(--leading-normal)}.status{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--weight-semibold);border:1px solid}.status:before{content:"";width:.4rem;height:.4rem;border-radius:50%;background:currentColor}.status-shipping{color:var(--accent-green);background:color-mix(in srgb,var(--accent-green) 10%,transparent);border-color:color-mix(in srgb,var(--accent-green) 26%,transparent)}.status-in-development{color:var(--accent-amber);background:color-mix(in srgb,var(--accent-amber) 12%,transparent);border-color:color-mix(in srgb,var(--accent-amber) 26%,transparent)}.fact-table{margin-block-start:var(--space-6);border:1px solid var(--border-subtle);border-radius:var(--radius-card);overflow:hidden;background:var(--surface-raised)}.fact-row{display:grid;gap:var(--space-1) var(--space-5);grid-template-columns:1fr;padding:var(--space-4) var(--space-5);border-top:1px solid var(--border-subtle)}.fact-row:first-child{border-top:0}@media(min-width:36rem){.fact-row{grid-template-columns:minmax(9rem,15rem) 1fr;align-items:baseline}}.fact-key{font-size:var(--text-sm);color:var(--text-tertiary)}.fact-value{font-size:var(--text-sm);color:var(--text-primary)}.fact-value address{font-style:normal}