:root{--bg:#f4f6f5;--bg-panel:#ecefed;--ink:#12211d;--ink-soft:#3c4a46;--line:#d5dbd8;--line-strong:#a9b4b0;--accent:#1fa97d;--accent-ink:#0e6b4e;--flag:#c4622d;--mono-text:#55625d;--font-display:"Space Grotesk","Noto Sans SC","IBM Plex Sans",sans-serif;--font-body:"IBM Plex Sans","Noto Sans SC",sans-serif;--font-mono:"IBM Plex Mono","Noto Sans SC",ui-monospace,monospace;--max-w:1120px}*{box-sizing:border-box}html{scroll-behavior:smooth}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}body{background:var(--bg);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;margin:0;font-size:16px;line-height:1.55}h1,h2,h3{font-family:var(--font-display);letter-spacing:-.01em;margin:0;font-weight:600;line-height:1.12}p{margin:0}a{color:inherit;text-decoration:none}button{font-family:var(--font-body);cursor:pointer}.mono{font-family:var(--font-mono);color:var(--mono-text);font-size:.85em}.wrap{max-width:var(--max-w);margin:0 auto;padding:0 28px}.rule{border:none;border-top:1px solid var(--line)}a:focus-visible{outline:2px solid var(--accent-ink);outline-offset:2px}button:focus-visible{outline:2px solid var(--accent-ink);outline-offset:2px}input:focus-visible{outline:2px solid var(--accent-ink);outline-offset:2px}textarea:focus-visible{outline:2px solid var(--accent-ink);outline-offset:2px}.site-header{z-index:20;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);background:#f4f6f5eb;position:sticky;top:0}.site-header .wrap{justify-content:space-between;align-items:center;height:84px;display:flex}.site-header .mobile-panel{justify-content:flex-start;align-items:flex-start;height:auto}.mobile-panel a{font-size:1rem}.brand{font-family:var(--font-display);letter-spacing:-.01em;align-items:center;gap:10px;font-size:1.85rem;font-weight:600;display:flex}.brand-mark{flex-shrink:0;width:50px;height:50px}.nav-links{color:var(--ink-soft);gap:32px;font-size:1.1rem;display:flex}.nav-links a{transition:color .15s}.nav-links a:hover{color:var(--ink)}.nav-cta{border:1px solid var(--ink);color:var(--ink);background:0 0;border-radius:3px;padding:8px 16px;font-size:.9rem;transition:background .15s,color .15s}.nav-cta:hover{background:var(--ink);color:var(--bg)}.header-right{align-items:center;gap:20px;display:flex}.lang-switch{font-family:var(--font-mono);align-items:center;gap:6px;font-size:.82rem;display:flex}.lang-btn{color:var(--mono-text);font-family:var(--font-mono);background:0 0;border:none;border-bottom:1px solid #0000;padding:4px 2px;font-size:.82rem;transition:color .15s,border-color .15s}.lang-btn:hover{color:var(--ink)}.lang-btn-active{color:var(--accent-ink);border-bottom-color:var(--accent-ink)}.lang-sep{color:var(--line-strong);font-size:.8rem}.lang-switch-compact{margin-top:4px}.nav-toggle{border:1px solid var(--line-strong);background:0 0;border-radius:3px;justify-content:center;align-items:center;width:38px;height:38px;display:none}.hero{padding:96px 0 88px}.hero-grid{grid-template-columns:1.15fr .85fr;align-items:center;gap:56px;display:grid}.hero-eyebrow{font-family:var(--font-mono);color:var(--accent-ink);margin-bottom:18px;font-size:.82rem}.hero h1{color:var(--ink);white-space:pre-line;font-size:max(2.1rem,min(4.2vw,3.4rem))}.hero-sub{color:var(--ink-soft);max-width:46ch;margin-top:22px;font-size:1.08rem}.hero-actions{flex-wrap:wrap;gap:14px;margin-top:34px;display:flex}.btn-primary{background:var(--ink);color:var(--bg);border:1px solid var(--ink);border-radius:3px;padding:13px 22px;font-size:.96rem;transition:background .15s}.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{color:var(--ink);border:1px solid var(--line-strong);background:0 0;border-radius:3px;padding:13px 22px;font-size:.96rem;transition:border-color .15s,background .15s}.btn-secondary:hover{border-color:var(--ink);background:#12211d0a}.reticle-box{aspect-ratio:1;border:1px solid var(--line);background:var(--bg-panel);border-radius:4px;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.reticle-box .coord{font-family:var(--font-mono);color:var(--mono-text);font-size:.68rem;position:absolute}.coord.tl{top:12px;left:14px}.coord.br{bottom:12px;right:14px}.section{padding:76px 0}.section-alt{background:var(--bg-panel)}.section-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px;display:flex}.section-head h2{max-width:26ch;font-size:max(1.5rem,min(2.6vw,2rem))}.section-head .section-num{font-family:var(--font-mono);color:var(--mono-text);font-size:.8rem}.section-lede{max-width:60ch;color:var(--accent-ink);margin-top:10px;font-size:1.05rem}.product-grid{border-top:1px solid var(--line);border-left:1px solid var(--line);grid-template-columns:repeat(2,1fr);gap:0;display:grid}.cell-link{color:var(--accent-ink);margin-top:16px;font-size:.94rem;font-weight:500;display:inline-block}.cell-link:hover{text-decoration:underline}.team-copy a{color:var(--accent-ink);text-underline-offset:2px;font-weight:500;text-decoration:underline}.product-cell{border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg);padding:32px 28px;transition:border-color .2s}.product-cell:hover{border-color:var(--accent-ink)}.product-cell .cell-head{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:4px 16px;margin-bottom:20px;display:flex}.product-cell .cell-head span{white-space:nowrap}.product-cell h3{margin-bottom:12px;font-size:1.4rem;font-weight:600}.product-cell p{color:var(--ink-soft);font-size:.94rem;line-height:1.6}.section-note{font-family:var(--font-mono);color:var(--mono-text);margin-top:24px;font-size:.78rem}.team-panel{grid-template-columns:.9fr 1.1fr;align-items:start;gap:52px;display:grid}.team-panel h2{max-width:18ch;font-size:max(1.5rem,min(2.6vw,2rem))}.team-tag{border-top:1px solid var(--line);margin-top:20px;padding-top:20px}.founder-photo{aspect-ratio:4/5;background:var(--bg-panel);border:1px solid var(--line);max-width:240px;margin-bottom:16px;overflow:hidden}.founder-photo img{object-fit:cover;filter:grayscale();width:100%;height:100%;transition:filter .7s}.founder-photo:hover img{filter:grayscale(0%)}.founder-name{font-size:1.1rem;font-weight:600}.founder-role{color:var(--accent-ink);font-family:var(--font-mono);font-size:.78rem}.team-copy p{color:var(--ink-soft);margin-bottom:18px;font-size:1rem;line-height:1.65}.team-copy p:last-child{margin-bottom:0}.team-copy strong{color:var(--ink);font-weight:600}.contact-panel{text-align:center;padding:20px 0}.contact-panel h2{max-width:24ch;margin:0 auto 16px;font-size:max(1.8rem,min(3.2vw,2.8rem))}.contact-panel .section-lede{margin:0 auto 40px}.contact-form-row{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.contact-form-row input{background:var(--bg);border:1px solid var(--line-strong);font-family:var(--font-body);color:var(--ink);border-radius:3px;width:100%;max-width:380px;padding:14px 18px;font-size:.96rem}.contact-form-row input:focus{border-color:var(--accent-ink);outline:none}.contact-status{margin-top:16px;font-size:.9rem}.contact-status.success{color:var(--accent-ink)}.contact-status.error{color:var(--flag)}.contact-note{color:var(--mono-text);margin-top:24px;font-size:.78rem}.site-footer{border-top:1px solid var(--line);padding:40px 0}.footer-grid{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.footer-grid .mono{color:var(--mono-text)}.footer-links{color:var(--ink-soft);gap:22px;font-size:.88rem;display:flex}.not-found{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:18px;min-height:70vh;padding:48px 0;display:flex}.not-found h1{font-family:var(--font-display);font-size:max(1.9rem,min(4vw,2.6rem));font-weight:600;line-height:1.15}.nf-block{flex-direction:column;align-items:center;gap:18px;display:flex}html[data-nf=en] .nf-block:not([lang=en]),html[data-nf=zh] .nf-block:not([lang=zh]){display:none}@media (max-width:860px){.nav-links,.lang-switch:not(.lang-switch-compact){display:none}.nav-toggle{display:flex}.hero-grid{grid-template-columns:1fr}.hero-visual{order:-1;max-width:240px;margin:0 auto}.product-grid,.team-panel{grid-template-columns:1fr}}@media (max-width:520px){.hero{padding:64px 0 56px}.section{padding:56px 0}.contact-form-row{flex-direction:column;align-items:center}.contact-form-row input{max-width:100%}}[lang=zh] body{overflow-wrap:break-word;line-height:1.7}