*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--ink: #0e1c1a;--ink-soft: #243632;--paper: #eef2ef;--paper-deep: #dfe7e2;--mist: #f6f8f6;--accent: #2f6f5e;--accent-deep: #1f4d41;--line: rgba(14, 28, 26, .12);--muted: #5a6b66;--ease: cubic-bezier(.22, 1, .36, 1);--display: "Source Sans 3", "PingFang SC", "Microsoft YaHei", sans-serif;--body: "Source Sans 3", "PingFang SC", "Microsoft YaHei", sans-serif}html{scroll-behavior:smooth}body{min-height:100vh;font-family:var(--body);color:var(--ink);background:radial-gradient(ellipse 80% 50% at 10% -10%,rgba(47,111,94,.14),transparent 50%),radial-gradient(ellipse 60% 40% at 90% 20%,rgba(36,54,50,.08),transparent 45%),linear-gradient(180deg,var(--mist) 0%,var(--paper) 45%,var(--paper-deep) 100%);line-height:1.55}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}ul{list-style:none}.nav{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem clamp(1.1rem,4vw,2.75rem);background:#f6f8f6d1;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.nav-brand{font-family:var(--display);font-weight:600;font-size:clamp(.95rem,2vw,1.08rem);letter-spacing:-.01em}.nav-links{display:flex;align-items:center;gap:clamp(.75rem,2vw,1.5rem);color:var(--muted);font-size:.9rem;font-weight:600}.nav-links a:hover{color:var(--accent-deep)}.nav-cta{color:#fff!important;background:var(--ink);padding:.55rem 1rem;border-radius:.45rem}.nav-cta:hover{background:var(--accent-deep)}.hero{position:relative;min-height:min(100vh,54rem);display:grid;align-items:end;overflow:hidden}.hero-media{position:absolute;top:0;right:0;bottom:0;left:0}.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 40%;transform:scale(1.04);animation:hero-drift 18s var(--ease) infinite alternate}.hero-veil{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#0e1c1a2e,#0e1c1a33 35%,#0e1c1ac7),linear-gradient(90deg,rgba(14,28,26,.55) 0%,rgba(14,28,26,.1) 55%,transparent 100%)}.hero-copy{position:relative;z-index:1;width:min(1120px,calc(100% - 2.4rem));margin:0 auto;padding:clamp(6rem,14vh,9rem) 0 clamp(3rem,7vh,4.5rem);color:#f3f7f4;animation:rise .9s var(--ease) both}.brand-mark{font-family:var(--display);font-weight:600;font-size:clamp(1.15rem,2.4vw,1.55rem);letter-spacing:-.01em;line-height:1.25;margin-bottom:.85rem}.hero .brand-mark{color:#fff;text-shadow:0 1px 12px rgba(0,0,0,.35)}.hero h1{max-width:22ch;font-family:var(--display);font-weight:500;font-size:clamp(1.85rem,3.8vw,2.85rem);letter-spacing:-.015em;line-height:1.25;margin-bottom:1.1rem;text-shadow:0 1px 16px rgba(0,0,0,.35)}.lead,.section-lead{max-width:38rem;color:var(--muted);font-size:clamp(1.05rem,1.7vw,1.2rem)}.hero .lead{color:#f3f7f4db;margin-bottom:1.75rem}.cta-group{display:flex;flex-wrap:wrap;gap:.75rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:2.85rem;padding:0 1.2rem;border-radius:.45rem;font-size:.95rem;font-weight:700;transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease)}.btn:hover{transform:translateY(-1px)}.btn-primary{color:#fff;background:var(--accent)}.btn-primary:hover{background:var(--accent-deep)}.btn-ghost{color:#fff;border:1px solid rgba(255,255,255,.45);background:#ffffff0f}.btn-ghost:hover{background:#ffffff24}.section-contact .btn-ghost{color:var(--ink);border-color:var(--line);background:transparent}.section-contact .btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep)}.section{padding:clamp(4rem,9vw,7rem) 0}.section-inner{width:min(1120px,calc(100% - 2.4rem));margin:0 auto}.eyebrow{color:var(--accent);font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:.85rem}.section h2,.section-head h2{font-family:var(--display);font-weight:500;font-size:clamp(1.5rem,2.8vw,2.15rem);letter-spacing:-.012em;line-height:1.28;max-width:24ch;margin-bottom:1rem}.section-lead{margin-bottom:2rem}.section-head{margin-bottom:.5rem}.section-proof{background:linear-gradient(180deg,rgba(14,28,26,.03),transparent),transparent}.license-layout{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:clamp(1.5rem,3.5vw,2.75rem);margin-top:1.75rem;align-items:start}.sys-arch{margin:0;padding:1.25rem 1.1rem 1rem;border:1px solid var(--line);background:#ffffff8c;display:grid;justify-items:stretch;gap:.45rem}.sys-node{width:100%;min-height:2.55rem;display:flex;align-items:center;justify-content:center;padding:.45rem .55rem;text-align:center;font-size:.86rem;font-weight:650;letter-spacing:-.01em;line-height:1.2;border:1px solid transparent}.sys-node--ink{background:var(--ink);color:#f3f7f4}.sys-node--soft{background:#e7eee9;color:var(--ink);border-color:#0e1c1a1a}.sys-node--panel{background:#fff;color:var(--ink);border-color:#0e1c1a1f;margin:.55rem 0 .35rem}.sys-arrow{width:1px;height:.7rem;margin:0 auto;background:#0e1c1a47;position:relative}.sys-arrow:after{content:"";position:absolute;left:50%;bottom:-2px;width:5px;height:5px;border-right:1px solid rgba(14,28,26,.35);border-bottom:1px solid rgba(14,28,26,.35);transform:translate(-50%) rotate(45deg)}.sys-cloud{width:100%;padding:.85rem .75rem .75rem;background:var(--accent-deep);color:#f3f7f4;text-align:center}.sys-cloud-title{font-weight:700;font-size:.95rem;letter-spacing:-.01em}.sys-cloud-sub{margin-top:.35rem;font-size:.8rem;opacity:.85}.sys-arch>.sys-node{max-width:100%}.sys-arch figcaption{margin-top:.55rem;color:var(--muted);font-size:.86rem;line-height:1.45;text-align:center}.stack-panel{margin-top:1.5rem;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#ffffff59}.stack-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--line)}.stack-tab{padding:1rem .75rem;text-align:left;font-weight:650;font-size:.95rem;letter-spacing:-.01em;color:var(--muted);border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)}.stack-tab:hover{color:var(--ink);background:#2f6f5e0d}.stack-tab.is-active{color:var(--ink);border-bottom-color:var(--accent);background:#2f6f5e12}.stack-body{padding:clamp(1.4rem,3vw,2.2rem);min-height:14rem}.stack-pane h3{font-family:var(--display);font-weight:600;font-size:1.25rem;letter-spacing:-.01em;line-height:1.3;margin-bottom:.7rem}.stack-pane p{color:var(--muted);max-width:46rem;margin-bottom:1.1rem}.stack-pane ul{display:grid;gap:.45rem;color:var(--ink-soft);font-weight:600}.stack-pane ul li{display:flex;gap:.55rem}.stack-pane ul li:before{content:"";width:.45rem;height:.45rem;margin-top:.45rem;border-radius:50%;background:var(--accent);flex:0 0 auto}.stack-pane[hidden]{display:none}.stack-pane.is-active{animation:rise .45s var(--ease) both}.section-licensing{background:linear-gradient(135deg,rgba(47,111,94,.08),transparent 40%),#ffffff47}.license-board{display:grid;gap:1rem;align-items:start}.license-levels{display:grid;gap:.55rem}.license-level{display:grid;gap:.15rem;text-align:left;padding:.95rem 1rem;border:1px solid var(--line);border-radius:.5rem;background:#ffffff8c;transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease)}.license-level span{font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.license-level strong{font-weight:650;font-size:1.05rem;letter-spacing:-.01em}.license-level:hover{transform:translate(2px)}.license-level.is-active{border-color:var(--accent);background:#2f6f5e1a}.license-summary{color:var(--muted);margin-bottom:1.1rem;max-width:40rem}.license-table{width:100%;border-collapse:collapse;font-size:.95rem}.license-table th,.license-table td{text-align:left;padding:.75rem .5rem;border-bottom:1px solid var(--line)}.license-table th{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}.license-table td:last-child{font-weight:650;letter-spacing:-.01em}.license-table .who-inkjoy{color:var(--accent-deep)}.license-table .who-partner{color:var(--ink-soft)}.isfr-figure,.isfr-secondary{margin:1.5rem 0 0}.isfr-figure img,.isfr-secondary img{width:100%;border-radius:.35rem}.isfr-figure figcaption,.isfr-secondary figcaption{margin-top:.75rem;color:var(--muted);font-size:.92rem}.isfr-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1rem,3vw,2rem);margin:2.4rem 0 1rem;padding-top:1.5rem;border-top:1px solid var(--line)}.isfr-points h3{font-family:var(--display);font-weight:600;font-size:1.1rem;letter-spacing:-.01em;line-height:1.3;margin-bottom:.45rem}.isfr-points p{color:var(--muted)}.isfr-secondary{margin-top:2.5rem}.case-list{list-style:none;display:grid;gap:0;margin-top:1rem;counter-reset:none}.case-list li{display:grid;grid-template-columns:4rem minmax(0,1fr);gap:1rem;padding:1.5rem 0;border-top:1px solid var(--line)}.case-list li:last-child{border-bottom:1px solid var(--line)}.case-index{font-weight:650;font-size:1.15rem;color:var(--accent);letter-spacing:-.01em;line-height:1.4}.case-tag{display:inline-block;margin-bottom:.45rem;color:var(--accent);font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.case-list h3{font-family:var(--display);font-weight:600;font-size:1.2rem;letter-spacing:-.01em;line-height:1.3;margin-bottom:.55rem}.case-list p{color:var(--muted);max-width:48rem}.case-list p strong{color:var(--ink-soft);font-weight:650}.section-api{background:var(--ink);color:#eef4f0}.section-api .eyebrow{color:#8fbfae}.section-api .section-lead{color:#eef4f0b8}.api-grid{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.1rem}.api-chip{padding:.5rem .9rem;border:1px solid rgba(238,244,240,.22);border-radius:.4rem;color:#eef4f0c7;font-weight:650;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}.api-chip:hover,.api-chip.is-active{color:var(--ink);background:#e8f0eb;border-color:#e8f0eb}.api-snippet{overflow-x:auto;padding:1.25rem 1.35rem;border:1px solid rgba(238,244,240,.14);border-radius:.45rem;background:#00000047;font-family:Cascadia Code,SF Mono,Consolas,monospace;font-size:.86rem;line-height:1.65;color:#d7ebe2}.section-contact{text-align:left;background:radial-gradient(ellipse 50% 60% at 80% 20%,rgba(47,111,94,.16),transparent 55%),var(--mist)}.section-contact .brand-mark{color:var(--ink)}.section-contact h2{max-width:18ch}.footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.75rem;padding:1.35rem clamp(1.1rem,4vw,2.75rem) 2rem;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;font-weight:600}.footer-links{display:flex;gap:1.1rem}.footer a:hover{color:var(--accent-deep)}.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}.reveal.is-in{opacity:1;transform:none}@keyframes rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}@keyframes hero-drift{0%{transform:scale(1.04) translateZ(0)}to{transform:scale(1.08) translate3d(-1.2%,-.8%,0)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.hero-media img,.hero-copy,.stack-pane.is-active{animation:none}}@media(max-width:860px){.nav-links a:not(.nav-cta){display:none}.stack-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.license-layout,.isfr-points{grid-template-columns:1fr}.case-list li{grid-template-columns:2.5rem minmax(0,1fr)}.hero h1{max-width:16ch}}