:root {
  --ink: #081426;
  --muted: #667085;
  --blue: #1267e9;
  --cyan: #18bdd0;
  --line: #e6ebf2;
  --surface: #f5f8fc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.site-header { height: 76px; position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(255,255,255,.82); backdrop-filter: blur(20px) saturate(160%); border-bottom: 1px solid rgba(220,228,238,.7); }
.nav-shell { width: min(1240px, calc(100% - 48px)); height: 100%; margin: auto; display: flex; align-items: center; gap: 38px; }
.brand { display: flex; align-items: center; margin-right: auto; }
.brand img { width: 194px; height: 58px; object-fit: contain; object-position: left center; }
.main-nav { display: flex; gap: 34px; align-items: center; }
.main-nav a { font-size: 14px; color: #425066; transition: color .2s; }
.main-nav a:hover { color: var(--blue); }
.nav-cta { padding: 11px 17px; color: white; background: var(--ink); border-radius: 99px; font-size: 13px; font-weight: 650; }
.nav-cta span { margin-left: 5px; color: #77dbe9; }
.menu-button { display: none; background: none; border: 0; width: 38px; height: 38px; padding: 10px; }
.menu-button span { display: block; width: 18px; height: 1.5px; margin: 5px 0; background: var(--ink); }

.hero { min-height: 940px; padding: 180px 0 56px; position: relative; overflow: hidden; background: linear-gradient(180deg,#fbfdff 0%,#f4f8fd 60%,#fff 100%); }
.hero-grid { position: absolute; inset: 0; opacity: .35; background-image: linear-gradient(rgba(20,87,170,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(20,87,170,.06) 1px,transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to bottom,black,transparent 76%); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(3px); }
.glow-one { width: 620px; height: 620px; right: -220px; top: 20px; background: radial-gradient(circle,rgba(45,156,255,.22),transparent 68%); }
.glow-two { width: 500px; height: 500px; left: -260px; bottom: 10px; background: radial-gradient(circle,rgba(44,213,201,.12),transparent 70%); }
.hero-inner { display: grid; grid-template-columns: 1.02fr .98fr; gap: 40px; align-items: center; position: relative; z-index: 1; }
.pill { width: max-content; padding: 8px 13px; background: rgba(255,255,255,.8); border: 1px solid #dbe8f6; border-radius: 99px; font-size: 12px; font-weight: 650; color: #45627f; box-shadow: 0 8px 30px rgba(38,91,150,.06); }
.pill i { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: linear-gradient(135deg,var(--blue),var(--cyan)); box-shadow: 0 0 0 4px rgba(18,103,233,.1); }
.hero h1 { margin: 25px 0 23px; font-size: clamp(52px,5vw,76px); line-height: 1.08; letter-spacing: -.055em; font-weight: 730; }
.hero h1 span { color: transparent; background: linear-gradient(98deg,#0c6fe8,#0ab8c9 70%); background-clip: text; -webkit-background-clip: text; }
.hero-copy > p { max-width: 610px; font-size: 17px; line-height: 1.85; color: #536277; }
.hero-actions { display: flex; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 22px; min-height: 50px; padding: 0 23px; border-radius: 13px; font-weight: 650; font-size: 14px; transition: transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: white; background: linear-gradient(135deg,#0874ed,#0aa8d2); box-shadow: 0 15px 32px rgba(13,119,227,.23); }
.button.secondary { background: rgba(255,255,255,.78); border: 1px solid #d7e0eb; color: #26364b; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 27px; font-size: 12px; color: #65758a; }
.hero-trust b { color: #12a9a7; margin-right: 5px; }
.hero-visual { position: relative; height: 530px; }
.orbit { position: absolute; left: 50%; top: 50%; border: 1px solid rgba(49,132,216,.18); border-radius: 50%; transform: translate(-50%,-50%) rotate(-15deg); }
.orbit-a { width: 480px; height: 330px; }
.orbit-b { width: 390px; height: 480px; transform: translate(-50%,-50%) rotate(45deg); }
.core-card { position: absolute; z-index: 3; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 270px; height: 314px; padding: 24px; display: flex; flex-direction: column; align-items: center; border-radius: 30px; background: linear-gradient(150deg,rgba(255,255,255,.96),rgba(235,245,255,.82)); border: 1px solid rgba(255,255,255,.95); box-shadow: 0 40px 90px rgba(30,91,158,.20), inset 0 0 0 1px rgba(119,180,238,.12); backdrop-filter: blur(16px); }
.core-top { align-self: stretch; color: #62768d; font-size: 9px; letter-spacing: .11em; }
.live-dot { display: inline-block; width: 6px; height: 6px; margin-right: 5px; background: #26c9b2; border-radius: 50%; box-shadow: 0 0 0 4px rgba(38,201,178,.12); }
.core-mark { width: 104px; height: 104px; display: grid; place-items: center; margin: 27px 0 16px; color: white; font-size: 58px; font-weight: 800; font-style: italic; border-radius: 31px; background: linear-gradient(145deg,#164bd7,#15c5d6); box-shadow: 0 22px 40px rgba(25,103,220,.28), inset -8px -8px 22px rgba(0,39,164,.2), inset 8px 8px 18px rgba(129,238,255,.25); }
.core-card strong { font-size: 18px; }
.core-card small { margin-top: 5px; color: #8390a1; font-size: 9px; }
.core-status { align-self: stretch; display: flex; justify-content: space-between; margin-top: auto; padding-top: 17px; border-top: 1px solid #dce5ef; color: #8490a0; font-size: 9px; }
.core-status b { color: #0fa48f; }
.float-card { position: absolute; z-index: 5; min-width: 190px; padding: 15px 16px; display: flex; align-items: center; gap: 12px; border-radius: 17px; background: rgba(255,255,255,.89); border: 1px solid rgba(255,255,255,.95); box-shadow: 0 18px 42px rgba(38,88,145,.14); backdrop-filter: blur(12px); }
.float-card > span { width: 37px; height: 37px; display: grid; place-items: center; color: var(--blue); background: #eaf3ff; border-radius: 11px; font-size: 11px; font-weight: 700; }
.float-card b,.float-card small { display: block; }
.float-card b { font-size: 13px; }
.float-card small { margin-top: 4px; color: #8996a7; font-size: 9px; }
.data-card { left: -3px; top: 68px; }
.model-card { right: -5px; top: 124px; }
.agent-card { right: 20px; bottom: 46px; }
.metrics { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4,1fr); margin-top: 72px; padding: 29px 0; background: rgba(255,255,255,.72); border: 1px solid #e3ebf4; border-radius: 20px; box-shadow: 0 20px 60px rgba(33,83,138,.07); backdrop-filter: blur(16px); }
.metrics div { padding: 0 38px; border-right: 1px solid #e3eaf2; }
.metrics div:last-child { border: 0; }
.metrics strong,.metrics span { display: block; }
.metrics strong { font-size: 25px; letter-spacing: -.03em; }
.metrics span { margin-top: 7px; color: #76859a; font-size: 11px; }

.section { padding: 116px 0; }
.section-heading { max-width: 590px; }
.section-heading.centered { margin: 0 auto 54px; text-align: center; }
.kicker { color: #107adb; font-size: 11px; font-weight: 750; letter-spacing: .16em; }
.section-heading h2 { margin: 17px 0; font-size: clamp(34px,4vw,50px); line-height: 1.18; letter-spacing: -.04em; }
.section-heading > p { margin: 0; color: #68768a; font-size: 15px; line-height: 1.85; }
.service-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; align-items: stretch; }
.service-card { position: relative; min-height: 390px; padding: 30px; display: flex; flex-direction: column; background: #fff; border: 1px solid #e5eaf1; border-radius: 24px; transition: transform .25s,box-shadow .25s; overflow: hidden; }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 24px 60px rgba(24,71,125,.11); }
.service-card.featured { border-color: #b9daf8; background: linear-gradient(160deg,#f7fbff,#eff8ff); box-shadow: 0 24px 70px rgba(24,105,183,.10); }
.service-card.featured:after { content:""; position:absolute; width:190px; height:190px; right:-80px; top:-60px; border-radius:50%; background:radial-gradient(circle,rgba(25,157,232,.16),transparent 70%); }
.recommend { position: absolute; right: 0; top: 0; padding: 8px 15px; color: #fff; background: linear-gradient(135deg,#1474e2,#0bb6c9); border-radius: 0 23px 0 15px; font-size: 10px; }
.service-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 43px; }
.service-icon { width: 48px; height: 48px; display: grid; place-items: center; color: #0d7ae4; background: #ecf5ff; border-radius: 15px; font-size: 22px; }
.service-top b { color: #dce4ee; font-size: 36px; }
.service-eyebrow { color: #1383d8; font-size: 11px; font-weight: 700; }
.service-card h3 { margin: 12px 0 14px; font-size: 22px; letter-spacing: -.02em; }
.service-card p { margin: 0; color: #6a7789; font-size: 13px; line-height: 1.85; }
.service-foot { margin-top: auto; padding-top: 24px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #e7edf3; color: #718196; font-size: 11px; }
.service-foot a { width: 34px; height: 34px; display: grid; place-items: center; color: #0d79dc; background: #eef6ff; border-radius: 50%; }

.process-section { color: white; background: #07162b; position: relative; overflow: hidden; }
.process-section:before { content:""; position:absolute; inset:0; background:radial-gradient(circle at 10% 20%,rgba(10,115,232,.24),transparent 35%),radial-gradient(circle at 90% 70%,rgba(14,202,205,.12),transparent 31%); }
.process-layout { position: relative; display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; align-items: center; }
.kicker.light { color: #55ceda; }
.process-section .section-heading h2 { color: white; }
.process-section .section-heading p { color: #9aaac0; }
.text-link { display: inline-flex; gap: 20px; margin-top: 28px; color: #77d7e1; font-size: 13px; font-weight: 650; }
.process-list { border-top: 1px solid rgba(255,255,255,.15); }
.process-item { display: grid; grid-template-columns: 60px 1fr; gap: 18px; padding: 31px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.process-item > span { color: #4ed0d7; font: 12px ui-monospace,monospace; }
.process-item h3 { margin: 0 0 8px; font-size: 19px; }
.process-item p { margin: 0; color: #92a3b9; font-size: 13px; line-height: 1.75; }

.sandbox-section { background: #f6f9fc; }
.sandbox { overflow: hidden; background: #fff; border: 1px solid #dfe7f0; border-radius: 24px; box-shadow: 0 30px 80px rgba(20,70,128,.10); }
.sandbox-bar { height: 54px; padding: 0 21px; display: flex; align-items: center; color: #7e8b9b; background: #f8fafc; border-bottom: 1px solid #e4eaf1; font-size: 10px; }
.window-dots { display: flex; gap: 6px; margin-right: 23px; }
.window-dots i { width: 8px; height: 8px; border-radius: 50%; background: #d1d8e1; }
.sandbox-bar em { margin-left: auto; color: #0ba98f; font-style: normal; }
.sandbox-bar em:before { content:""; display:inline-block; width:6px; height:6px; margin-right:5px; border-radius:50%; background:#18c4a5; }
.sandbox-body { display: grid; grid-template-columns: 1fr 1fr; min-height: 410px; }
.input-panel,.output-panel { padding: 29px; }
.input-panel { border-right: 1px solid #e3eaf1; }
.panel-label { display: flex; justify-content: space-between; color: #304157; font-size: 12px; font-weight: 700; }
.panel-label b { color: #a1acba; font: 9px ui-monospace,monospace; letter-spacing: .12em; }
.industry-tabs { display: flex; gap: 7px; margin: 25px 0 15px; }
.industry-tabs button { padding: 8px 13px; color: #778699; background: #f4f7fa; border: 1px solid transparent; border-radius: 8px; cursor: pointer; font-size: 10px; }
.industry-tabs button.active { color: #0872db; background: #eaf4ff; border-color: #c5e1ff; }
.raw-text { min-height: 170px; padding: 20px; color: #5a6a7f; background: #fafbfd; border: 1px solid #e4eaf0; border-radius: 13px; font: 13px/1.9 ui-monospace,"SFMono-Regular",monospace; }
.refine-button { width: 100%; height: 48px; margin-top: 16px; color: white; background: linear-gradient(120deg,#1470e5,#0eb7cc); border: 0; border-radius: 12px; cursor: pointer; font-weight: 650; font-size: 12px; box-shadow: 0 12px 28px rgba(17,119,221,.2); }
.refine-button span { margin-right: 6px; }
.output-panel { background: linear-gradient(150deg,#f8fbff,#f3f9ff); }
.empty-state { height: 310px; display: flex; flex-direction: column; align-items: center; justify-content: center; color: #718198; }
.pulse-ring { width: 78px; height: 78px; display: grid; place-items: center; margin-bottom: 18px; color: white; border-radius: 25px; background: linear-gradient(145deg,#1c62dc,#16bfd2); font-size: 34px; font-weight: 800; font-style: italic; box-shadow: 0 0 0 13px rgba(18,123,221,.06),0 20px 35px rgba(18,108,209,.18); }
.empty-state p { margin: 10px 0 4px; color: #44566d; font-size: 13px; font-weight: 650; }
.empty-state small { color: #9ca8b7; font-size: 10px; }
.result-state { padding-top: 27px; }
.success-line { margin-bottom: 20px; padding: 12px 14px; color: #087f71; background: #e8faf6; border-radius: 10px; font-size: 11px; }
.success-line span { margin-right: 6px; }
.entity-row { display: flex; justify-content: space-between; padding: 16px 3px; border-bottom: 1px solid #dfe7ef; font-size: 11px; }
.entity-row em { color: #7c8999; font-style: normal; }
.entity-row b { color: #26384f; text-align: right; }
.knowledge-path { display: flex; align-items: center; justify-content: space-between; margin-top: 27px; color: #6d7e92; font-size: 10px; }
.knowledge-path i { padding: 9px 12px; color: #1175d0; background: white; border: 1px solid #d5e6f6; border-radius: 8px; font-style: normal; }

.case-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 110px; align-items: center; }
.case-visual { position: relative; height: 580px; }
.case-background { position: absolute; inset: 35px 30px; border-radius: 45% 55% 58% 42% / 42% 36% 64% 58%; background: linear-gradient(140deg,#ddf7f4,#dcebff); transform: rotate(-7deg); }
.phone-card { position: absolute; width: 290px; height: 526px; left: 49%; top: 50%; transform: translate(-50%,-50%) rotate(-3deg); padding: 18px; background: #fff; border: 7px solid #0a1728; border-radius: 38px; box-shadow: 0 35px 70px rgba(22,69,116,.22); }
.phone-head { padding: 6px 1px 25px; display: flex; justify-content: space-between; align-items: center; font-size: 11px; }
.phone-head span,.phone-head i { color: #718196; font-style: normal; }
.chat { display: flex; gap: 8px; margin: 14px 0; font-size: 9px; line-height: 1.65; }
.chat span { flex: 0 0 25px; height: 25px; display: grid; place-items: center; color: white; background: linear-gradient(135deg,#195edb,#15bcd1); border-radius: 8px; font-weight: 800; font-style: italic; }
.chat p { margin: 0; padding: 11px 12px; background: #f1f5f9; border-radius: 5px 13px 13px 13px; }
.chat.user { justify-content: flex-end; margin-left: 48px; }
.chat.user p { color: white; background: #1675dc; border-radius: 13px 5px 13px 13px; }
.chat p b { display: block; margin-top: 7px; color: #0b78dc; }
.roi-badge { position: absolute; right: 4px; bottom: 52px; width: 156px; padding: 18px; background: rgba(255,255,255,.93); border: 1px solid white; border-radius: 18px; box-shadow: 0 20px 45px rgba(30,85,143,.17); backdrop-filter: blur(10px); }
.roi-badge small,.roi-badge strong,.roi-badge span { display: block; }
.roi-badge small { color: #77869a; font-size: 9px; }
.roi-badge strong { margin: 5px 0; color: #0e79da; font-size: 28px; }
.roi-badge span { color: #19a595; font-size: 8px; }
.case-copy ul { list-style: none; padding: 0; margin: 35px 0 0; }
.case-copy li { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid #e5eaf0; }
.case-copy li > span { width: 34px; height: 34px; display: grid; place-items: center; color: #0c7ad8; background: #edf6ff; border-radius: 10px; font-size: 9px; }
.case-copy li b,.case-copy li small { display: block; }
.case-copy li b { font-size: 13px; }
.case-copy li small { margin-top: 5px; color: #8793a3; font-size: 10px; }

.cta-section { position: relative; overflow: hidden; padding: 100px 0; color: white; text-align: center; background: linear-gradient(130deg,#0a62d4,#079fc6); }
.cta-section:before,.cta-section:after { content:""; position:absolute; width:420px; height:420px; border:1px solid rgba(255,255,255,.15); border-radius:50%; }
.cta-section:before { left:-150px; top:-220px; }
.cta-section:after { right:-170px; bottom:-270px; }
.cta-inner { position: relative; z-index: 2; }
.cta-section h2 { margin: 16px 0; font-size: clamp(37px,4vw,53px); letter-spacing: -.04em; }
.cta-section p { margin: 0; color: rgba(255,255,255,.75); font-size: 14px; }
.cta-actions { display: flex; justify-content: center; gap: 12px; margin-top: 32px; }
.button.white { color: #086bbf; background: white; }
.button.ghost { color: white; border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.08); }

footer { padding: 55px 0 24px; background: #f7f9fc; }
.footer-main { display: grid; grid-template-columns: 230px 1fr auto; align-items: center; gap: 40px; padding-bottom: 35px; }
.footer-main img { width: 190px; height: 76px; object-fit: contain; object-position: left center; }
.footer-main p { margin: 0; color: #758398; font-size: 11px; line-height: 1.9; }
.footer-links { display: flex; gap: 24px; color: #536277; font-size: 11px; }
.footer-bottom { padding-top: 20px; display: flex; justify-content: space-between; color: #9aa5b2; border-top: 1px solid #e2e7ee; font-size: 9px; }

@media (max-width: 980px) {
  .main-nav { gap: 18px; }
  .hero-inner,.process-layout,.case-layout { gap: 45px; }
  .float-card { min-width: 155px; }
  .service-card { padding: 24px; }
  .footer-main { grid-template-columns: 200px 1fr; }
  .footer-links { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .container,.nav-shell { width: min(100% - 32px,1180px); }
  .site-header { height: 68px; }
  .brand img { width: 156px; height: 48px; }
  .nav-cta { display: none; }
  .menu-button { display: block; }
  .main-nav { position: absolute; left: 16px; right: 16px; top: 64px; padding: 18px; display: none; flex-direction: column; align-items: stretch; gap: 4px; background: rgba(255,255,255,.97); border: 1px solid #e4e9ef; border-radius: 16px; box-shadow: 0 18px 45px rgba(21,55,91,.15); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 11px; }
  .hero { min-height: auto; padding: 132px 0 45px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 48px; }
  .hero-copy > p { font-size: 15px; }
  .hero-visual { height: 440px; transform: scale(.88); margin: -20px -35px; }
  .metrics { grid-template-columns: 1fr 1fr; margin-top: 40px; }
  .metrics div { padding: 18px 22px; }
  .metrics div:nth-child(2) { border-right: 0; }
  .metrics div:nth-child(-n+2) { border-bottom: 1px solid #e3eaf2; }
  .section { padding: 80px 0; }
  .service-grid,.process-layout,.sandbox-body,.case-layout { grid-template-columns: 1fr; }
  .process-layout { gap: 45px; }
  .input-panel { border-right: 0; border-bottom: 1px solid #e3eaf1; }
  .case-layout { gap: 30px; }
  .case-visual { height: 520px; order: 2; }
  .footer-main { grid-template-columns: 1fr; gap: 18px; }
  .footer-links { flex-wrap: wrap; }
}

@media (max-width: 430px) {
  .hero h1 { font-size: 41px; }
  .hero-actions,.cta-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-trust { gap: 10px 16px; }
  .hero-visual { transform: scale(.72); margin: -50px -80px; }
  .metrics strong { font-size: 21px; }
  .service-card { min-height: 355px; }
  .industry-tabs { overflow-x: auto; }
  .industry-tabs button { white-space: nowrap; }
  .case-visual { transform: scale(.88); margin: -30px -20px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}