:root {
  --ink: #090b11;
  --text: #4f5665;
  --soft-text: #707786;
  --line: #e9ebf0;
  --surface: #f7f8fb;
  --blue: #075cf6;
  --violet: #7b61ff;
  --pink: #ff5c8a;
  --cyan: #00a8c7;
  --container: 1160px;
  --radius: 28px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.container { width: min(var(--container), calc(100% - 48px)); margin: 0 auto; }
.section-pad { padding: 132px 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link { position: fixed; top: -60px; left: 24px; z-index: 100; padding: 12px 18px; color: #fff; background: var(--blue); border-radius: 10px; }
.skip-link:focus { top: 14px; }

.site-header {
  position: sticky; top: 0; z-index: 50; height: 72px;
  background: rgba(255,255,255,.86); border-bottom: 1px solid rgba(233,235,240,.8);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.nav-shell { width: min(1180px, calc(100% - 40px)); height: 100%; margin: 0 auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; }
.brand { display: inline-flex; align-items: center; gap: 10px; width: max-content; font-size: 15px; }
.brand img { display: block; border-radius: 10px; }
.brand-name { font-weight: 750; letter-spacing: -.02em; }
.brand-divider { width: 1px; height: 16px; margin: 0 1px; background: #d9dce3; }
.brand-cn { color: #3f4653; font-weight: 600; }
.main-nav { display: flex; align-items: center; gap: 42px; color: #454b57; font-size: 14px; }
.main-nav a, .footer-links a { transition: color .2s ease; }
.main-nav a:hover, .footer-links a:hover { color: var(--blue); }
.nav-cta { justify-self: end; padding: 11px 18px; color: #fff; background: var(--blue); border-radius: 999px; font-size: 13px; font-weight: 650; box-shadow: 0 8px 24px rgba(7,92,246,.18); transition: transform .2s ease, box-shadow .2s ease; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(7,92,246,.25); }
.menu-toggle { display: none; }

.hero { position: relative; min-height: 790px; overflow: hidden; display: grid; align-items: center; padding-top: 92px; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(12,17,29,.027) 1px, transparent 1px), linear-gradient(90deg, rgba(12,17,29,.027) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: linear-gradient(to bottom, black, transparent 72%);
}
.hero-glow { position: absolute; width: 560px; height: 560px; border-radius: 50%; filter: blur(90px); opacity: .2; pointer-events: none; }
.hero-glow--left { top: -270px; left: 2%; background: #b7c9ff; }
.hero-glow--right { top: -280px; right: 2%; background: #ffc5d8; }
.hero-inner { position: relative; text-align: center; }
.eyebrow, .section-kicker { margin: 0 0 24px; color: #5f6673; font-size: 12px; font-weight: 750; letter-spacing: .16em; }
.hero h1 { margin: 0; font-size: clamp(46px, 6vw, 80px); line-height: 1.12; letter-spacing: -.06em; font-weight: 780; }
.hero h1 span { color: transparent; background: linear-gradient(100deg, var(--pink) 4%, var(--violet) 45%, var(--blue) 92%); background-clip: text; -webkit-background-clip: text; }
.hero-copy { max-width: 730px; margin: 30px auto 0; color: #646b78; font-size: 19px; line-height: 1.85; }
.hero-actions { display: flex; justify-content: center; gap: 12px; margin-top: 38px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 24px; border: 1px solid transparent; border-radius: 999px; font-size: 14px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button--primary { color: #fff; background: var(--blue); box-shadow: 0 14px 32px rgba(7,92,246,.22); }
.button--ghost { background: rgba(255,255,255,.7); border-color: #dfe2e8; }
.button--light { background: #fff; color: #131722; }

.hero-orbit { position: relative; width: min(680px, 100%); height: 170px; margin: 70px auto -30px; }
.orbit-line { position: absolute; left: 9%; right: 9%; top: 50%; height: 1px; background: linear-gradient(90deg, transparent, #d8dce5 18%, #b8c2d8 50%, #d8dce5 82%, transparent); }
.orbit-core { position: absolute; left: 50%; top: 50%; width: 82px; height: 82px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, #121a2b, #075cf6); border: 8px solid #fff; border-radius: 26px; box-shadow: 0 22px 45px rgba(11,48,117,.22); transform: translate(-50%,-50%) rotate(8deg); }
.orbit-core svg { width: 46px; height: 46px; transform: rotate(-8deg); }
.orbit-chip { position: absolute; top: 50%; padding: 9px 13px; color: #5d6472; background: rgba(255,255,255,.94); border: 1px solid #e5e8ee; border-radius: 999px; box-shadow: 0 10px 28px rgba(30,46,75,.08); font-size: 9px; font-weight: 800; letter-spacing: .09em; transform: translateY(-50%); }
.orbit-chip--one { left: 1%; }.orbit-chip--two { left: 23%; }.orbit-chip--three { right: 22%; }.orbit-chip--four { right: 0; }

.products { border-top: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: 1.4fr .8fr; gap: 80px; align-items: end; margin-bottom: 92px; }
.section-heading h2 { max-width: 720px; margin: 0; font-size: clamp(38px, 4.5vw, 62px); line-height: 1.14; letter-spacing: -.05em; }
.section-heading > p { max-width: 450px; margin: 0; color: var(--text); font-size: 17px; line-height: 1.8; }
.section-kicker { position: relative; padding-left: 32px; }
.section-kicker::before { content: ""; position: absolute; left: 0; top: 50%; width: 20px; height: 1px; background: linear-gradient(90deg, var(--pink), var(--blue)); }
.product-list { display: grid; gap: 150px; }
.product { display: grid; grid-template-columns: .86fr 1.14fr; gap: 90px; align-items: center; }
.product--reverse { grid-template-columns: 1.14fr .86fr; }
.product--reverse .product-copy { order: 2; }
.product--reverse .product-visual { order: 1; }
.product-number { color: #8a909c; font-size: 10px; font-weight: 750; letter-spacing: .16em; }
.product-name { margin: 18px 0 14px; font-size: 14px; font-weight: 800; letter-spacing: .03em; }
.product-name--blue { color: var(--blue); }.product-name--violet { color: var(--violet); }.product-name--cyan { color: var(--cyan); }.product-name--pink { color: var(--pink); }
.product-copy h3 { max-width: 470px; margin: 0; font-size: clamp(34px, 3.6vw, 50px); line-height: 1.16; letter-spacing: -.045em; }
.product-copy > p:not(.product-name) { max-width: 480px; margin: 24px 0 0; color: var(--text); font-size: 17px; line-height: 1.85; }
.product-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.product-tags span { padding: 8px 12px; color: #5a6270; background: #f7f8fa; border: 1px solid #ebedf1; border-radius: 999px; font-size: 11px; }
.product-visual { position: relative; min-height: 430px; overflow: hidden; border: 1px solid rgba(224,228,237,.9); border-radius: var(--radius); }
.visual-rag { display: grid; place-items: center; background: radial-gradient(circle at 20% 10%, #d9e7ff, transparent 42%), #f3f7ff; }
.visual-window { width: 83%; overflow: hidden; background: rgba(255,255,255,.92); border: 1px solid rgba(206,215,231,.9); border-radius: 14px; box-shadow: 0 30px 60px rgba(39,73,137,.13); transform: rotate(-1deg); }
.window-bar { height: 38px; display: flex; align-items: center; gap: 6px; padding: 0 12px; border-bottom: 1px solid #edf0f4; }
.window-bar i { width: 7px; height: 7px; background: #dce1ea; border-radius: 50%; }.window-bar i:first-child { background: #ff718c; }
.window-bar b { margin-left: 8px; color: #858c98; font-size: 8px; letter-spacing: .05em; }
.rag-layout { display: grid; grid-template-columns: 84px 1fr; min-height: 250px; }
.rag-side { padding: 22px 14px; background: #f7f8fb; }.rag-side span { display: block; height: 7px; margin-bottom: 15px; background: #dfe5ef; border-radius: 5px; }.rag-side span:first-child { background: #6590f6; }
.rag-main { padding: 32px; }.query { display: flex; align-items: center; gap: 10px; padding: 13px; background: #f4f6fa; border-radius: 9px; color: #6e7581; font-size: 9px; }.query em { width: 10px; height: 10px; border: 2px solid #7a8fab; border-radius: 50%; }
.answer-lines { margin: 28px 0; }.answer-lines b { display: block; width: 90%; height: 8px; margin: 13px 0; background: #e9edf3; border-radius: 5px; }.answer-lines b:nth-child(2) { width: 72%; }.answer-lines b:nth-child(4) { width: 54%; }
.source-row { display: flex; gap: 8px; }.source-row span { padding: 8px 12px; background: #edf3ff; border-radius: 7px; color: #4265a9; font-size: 8px; }
.visual-heys { background: radial-gradient(circle at 82% 22%, #e7ddff, transparent 42%), #f7f4ff; }
.agent-map { position: absolute; inset: 0; }.agent-map svg, .visual-api svg, .visual-entixy > svg { position: absolute; inset: 0; width: 100%; height: 100%; fill: none; stroke: rgba(115,86,232,.34); stroke-width: 1.4; stroke-dasharray: 5 5; }
.agent-node { position: absolute; z-index: 2; display: grid; place-items: center; width: 66px; height: 66px; color: #696f7c; background: rgba(255,255,255,.92); border: 1px solid #e2dff0; border-radius: 20px; box-shadow: 0 16px 32px rgba(75,57,135,.1); font-size: 12px; font-weight: 700; }
.agent-node--core { left: 50%; top: 50%; width: 96px; height: 96px; color: #fff; background: linear-gradient(145deg, #8d6cff, #5944d7); transform: translate(-50%,-50%); font-size: 22px; }
.agent-node--a { left: 12%; top: 13%; }.agent-node--b { right: 12%; top: 20%; }.agent-node--c { left: 14%; bottom: 12%; }.agent-node--d { right: 10%; bottom: 12%; }
.visual-api { background: radial-gradient(circle at 20% 80%, #d8f6fb, transparent 40%), #f2fbfc; }
.api-source, .api-target, .api-gateway { position: absolute; z-index: 2; display: grid; place-items: center; background: rgba(255,255,255,.94); border: 1px solid #dcebed; box-shadow: 0 14px 30px rgba(30,100,112,.1); }
.api-source { left: 9%; width: 78px; height: 54px; border-radius: 14px; color: #608087; font-size: 10px; font-weight: 800; }.source-a { top: 20%; }.source-b { bottom: 20%; }
.api-gateway { left: 50%; top: 50%; width: 104px; height: 146px; align-content: center; border-radius: 22px; transform: translate(-50%,-50%); color: var(--cyan); }.api-gateway small { font-size: 7px; letter-spacing: .12em; }.api-gateway strong { margin: 5px 0; font-size: 38px; line-height: 1; }.api-gateway span { color: #7f8b91; font-size: 7px; letter-spacing: .1em; }
.api-target { right: 9%; width: 56px; height: 56px; border-radius: 50%; color: #54828b; font-weight: 800; }.target-a { top: 14%; }.target-b { top: 50%; transform: translateY(-50%); }.target-c { bottom: 14%; }
.visual-api svg { stroke: rgba(0,136,161,.32); }
.visual-entixy { background: radial-gradient(circle at 78% 22%, #ffe0e8, transparent 44%), #fff5f7; }
.visual-entixy > svg { stroke: rgba(226,71,116,.3); stroke-dasharray: none; }
.graph-node { position: absolute; z-index: 2; width: 17px; height: 17px; border: 5px solid #fff; border-radius: 50%; background: var(--pink); box-shadow: 0 6px 18px rgba(207,66,107,.25); }
.graph-node--a { left: 18%; top: 21%; }.graph-node--b { left: 46%; top: 43%; }.graph-node--c { right: 18%; top: 17%; }.graph-node--d { left: 22%; bottom: 18%; }.graph-node--e { right: 17%; bottom: 17%; }.graph-node--f { right: 30%; top: 48%; background: var(--violet); }
.insight-card { position: absolute; z-index: 3; left: 50%; top: 50%; width: 210px; padding: 22px; background: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.9); border-radius: 18px; box-shadow: 0 24px 48px rgba(120,54,78,.12); backdrop-filter: blur(10px); transform: translate(-50%,-50%); }
.insight-card span { color: var(--pink); font-size: 8px; font-weight: 800; letter-spacing: .12em; }.insight-card strong { display: block; margin: 8px 0 18px; font-size: 16px; }.insight-card i { display: block; height: 6px; margin-top: 9px; background: #edf0f4; border-radius: 4px; }.insight-card i:nth-of-type(2) { width: 72%; }.insight-card i:nth-of-type(3) { width: 48%; }

.belief { background: #fafafa; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.belief-inner { max-width: 950px; text-align: center; }
.belief .section-kicker { display: inline-block; }
.belief blockquote { margin: 0; font-size: clamp(40px, 5.6vw, 72px); line-height: 1.22; letter-spacing: -.055em; font-weight: 760; }
.belief-inner > p:last-child { max-width: 730px; margin: 42px auto 0; color: var(--text); font-size: 17px; line-height: 1.9; }

.capability-grid { display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.capability-card { min-height: 310px; padding: 42px; background: #fff; }
.capability-card + .capability-card { border-left: 1px solid var(--line); }
.capability-icon { display: grid; place-items: center; width: 46px; height: 46px; color: var(--blue); background: #eef4ff; border-radius: 14px; font-size: 12px; font-weight: 800; }
.capability-card h3 { margin: 62px 0 14px; font-size: 24px; letter-spacing: -.03em; }
.capability-card p { margin: 0; color: var(--text); font-size: 15px; line-height: 1.8; }

.closing { padding-top: 20px; }
.closing-card { position: relative; min-height: 400px; display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; overflow: hidden; padding: 66px; color: #fff; background: #0a0d15; border-radius: 34px; }
.closing-card::before { content: ""; position: absolute; right: -100px; top: -180px; width: 580px; height: 580px; background: radial-gradient(circle, rgba(75,99,255,.7), rgba(181,83,192,.27) 38%, transparent 70%); }
.closing-card > * { position: relative; z-index: 1; }
.closing-card .section-kicker { color: #b7bdca; }
.closing-card h2 { margin: 0; font-size: clamp(36px, 4.8vw, 60px); line-height: 1.16; letter-spacing: -.05em; }

.site-footer { padding: 58px 0 34px; }
.footer-main { display: flex; align-items: flex-start; justify-content: space-between; padding-bottom: 48px; }
.footer-links { display: flex; gap: 34px; color: #59606d; font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; color: #8a909b; border-top: 1px solid var(--line); font-size: 11px; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.22,1,.36,1), transform .8s cubic-bezier(.22,1,.36,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .section-pad { padding: 100px 0; }
  .nav-shell { grid-template-columns: 1fr auto; }
  .nav-cta { display: none; }
  .menu-toggle { justify-self: end; display: grid; gap: 6px; width: 42px; height: 42px; place-content: center; padding: 0; background: transparent; border: 0; }
  .menu-toggle > span:not(.sr-only) { display: block; width: 20px; height: 1.5px; background: var(--ink); transition: transform .2s ease; }
  .menu-toggle[aria-expanded="true"] > span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] > span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .main-nav { position: fixed; left: 0; right: 0; top: 72px; display: grid; gap: 0; padding: 10px 24px 24px; background: rgba(255,255,255,.98); border-bottom: 1px solid var(--line); transform: translateY(-140%); transition: transform .3s ease; }
  .main-nav.is-open { transform: translateY(0); }
  .main-nav a { padding: 16px 0; border-bottom: 1px solid var(--line); }
  .hero { min-height: 760px; padding-top: 80px; }
  .section-heading { grid-template-columns: 1fr; gap: 24px; margin-bottom: 72px; }
  .product, .product--reverse { grid-template-columns: 1fr; gap: 45px; }
  .product--reverse .product-copy, .product--reverse .product-visual { order: initial; }
  .product-list { gap: 110px; }
  .product-visual { min-height: 390px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: auto; }
  .capability-card + .capability-card { border-left: 0; border-top: 1px solid var(--line); }
  .capability-card h3 { margin-top: 38px; }
  .closing-card { min-height: 460px; flex-direction: column; align-items: flex-start; justify-content: flex-end; }
}

@media (max-width: 600px) {
  .container { width: min(100% - 32px, var(--container)); }
  .section-pad { padding: 82px 0; }
  .site-header { height: 64px; }
  .nav-shell { width: calc(100% - 24px); }
  .brand { gap: 8px; }.brand img { width: 30px; height: 30px; }.brand-name { font-size: 13px; }.brand-cn { font-size: 12px; }
  .main-nav { top: 64px; }
  .hero { min-height: 720px; padding-top: 62px; }
  .hero h1 { font-size: clamp(36px, 10.5vw, 52px); }
  .hero-copy { font-size: 16px; line-height: 1.75; }
  .hero-actions { flex-direction: column; align-items: stretch; max-width: 300px; margin-left: auto; margin-right: auto; }
  .hero-orbit { width: 115%; margin-left: -7.5%; }.orbit-chip--two, .orbit-chip--three { display: none; }
  .orbit-chip--one { left: 3%; }.orbit-chip--four { right: 3%; }
  .section-heading h2 { font-size: 40px; }
  .section-heading > p { font-size: 15px; }
  .product-list { gap: 88px; }
  .product-copy h3 { font-size: 38px; }
  .product-copy > p:not(.product-name) { font-size: 15px; }
  .product-visual { min-height: 320px; border-radius: 22px; }
  .visual-window { width: 92%; }.rag-main { padding: 22px 18px; }.rag-layout { grid-template-columns: 62px 1fr; }
  .agent-node { width: 56px; height: 56px; border-radius: 16px; font-size: 10px; }.agent-node--core { width: 82px; height: 82px; font-size: 18px; }
  .api-source { left: 5%; width: 62px; }.api-target { right: 5%; }.api-gateway { width: 88px; height: 130px; }
  .belief blockquote { font-size: 38px; }
  .belief-inner > p:last-child { font-size: 15px; }
  .capability-card { padding: 32px; }
  .closing { padding-top: 0; }
  .closing-card { width: calc(100% - 24px); min-height: 490px; padding: 36px 28px; border-radius: 26px; }
  .footer-main { gap: 38px; flex-direction: column; }
  .footer-links { flex-wrap: wrap; gap: 16px 26px; }
  .footer-bottom { gap: 12px; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}