:root {
  --ink: #071827;
  --ink-2: #0b2439;
  --paper: #f4f7f8;
  --surface: #ffffff;
  --muted: #647381;
  --line: rgba(7, 24, 39, .12);
  --blue: #246bfd;
  --green: #19a68c;
  --cyan: #65e6d0;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --display: "Arial Narrow", Inter, "PingFang SC", sans-serif;
  --shell: min(1180px, calc(100vw - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px; background: #fff; color: var(--ink); border-radius: 8px; transition: top .2s; }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 100; color: #fff; transition: background .3s, border-color .3s; }
.site-header.scrolled, .site-header.menu-open { background: rgba(7, 24, 39, .94); border-bottom: 1px solid rgba(255, 255, 255, .1); backdrop-filter: blur(18px); }
.nav-shell { height: 76px; display: flex; align-items: center; gap: 44px; }
.brand { margin-right: auto; }
.brand img { width: 158px; height: auto; filter: brightness(0) invert(1); }
.desktop-nav { display: flex; gap: 34px; color: rgba(255, 255, 255, .72); font-size: 14px; }
.desktop-nav a { transition: color .2s; }
.desktop-nav a:hover, .desktop-nav a.active { color: #fff; }
.nav-cta { display: flex; align-items: center; gap: 18px; padding: 10px 0 10px 24px; border-left: 1px solid rgba(255,255,255,.18); font-size: 14px; }
.nav-cta span { color: var(--cyan); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 25px; height: 1px; margin: 7px auto; background: #fff; transition: transform .25s; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
.mobile-nav { display: none; }

.hero { position: relative; min-height: 760px; height: 100svh; max-height: 980px; display: flex; align-items: center; overflow: hidden; color: #fff; background: radial-gradient(circle at 72% 48%, #113d56 0, var(--ink-2) 25%, var(--ink) 61%); }
.hero::before { content: ""; position: absolute; width: 700px; height: 700px; right: -280px; top: -280px; border: 1px solid rgba(101, 230, 208, .2); border-radius: 50%; box-shadow: 0 0 100px rgba(36,107,253,.08) inset; }
.hero-grid { position: absolute; inset: 0; opacity: .15; background-image: linear-gradient(rgba(255,255,255,.13) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.13) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, transparent 4%, #000 35%, #000 80%, transparent); }
.hero-layout { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 72px; padding-top: 72px; }
.eyebrow, .section-index { margin: 0 0 22px; color: var(--green); font-size: 11px; font-weight: 700; letter-spacing: .24em; }
.hero h1 { margin: 0; max-width: 680px; font-family: var(--display); font-size: clamp(62px, 7vw, 96px); line-height: .98; letter-spacing: -.065em; font-weight: 700; }
.hero h1 span { color: #7ef0dc; }
.hero-lead { max-width: 610px; margin: 34px 0 0; color: rgba(255,255,255,.68); font-size: 18px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 14px; margin-top: 42px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 34px; padding: 0 24px; border: 1px solid transparent; font-size: 14px; font-weight: 650; transition: transform .25s, background .25s, border-color .25s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--blue); box-shadow: 0 12px 40px rgba(36,107,253,.22); }
.button-secondary { color: #fff; border-color: rgba(255,255,255,.24); background: rgba(255,255,255,.03); }

.hero-system { position: relative; min-height: 500px; padding: 20px; overflow: hidden; border: 1px solid rgba(101,230,208,.2); background: linear-gradient(145deg, rgba(20,64,88,.72), rgba(7,24,39,.54)); box-shadow: 0 34px 110px rgba(0,0,0,.3), inset 0 0 70px rgba(36,107,253,.06); backdrop-filter: blur(12px); }
.hero-system::before { content: ""; position: absolute; width: 240px; height: 240px; right: -90px; top: -90px; border-radius: 50%; background: rgba(36,107,253,.16); filter: blur(45px); }
.system-topline { position: relative; z-index: 3; display: flex; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid rgba(255,255,255,.09); font-size: 9px; font-weight: 650; letter-spacing: .18em; color: rgba(255,255,255,.52); }
.system-topline i { display: flex; align-items: center; gap: 7px; color: #88f2df; font-style: normal; }
.system-topline i b { width: 6px; height: 6px; border-radius: 50%; background: #65e6d0; box-shadow: 0 0 12px #65e6d0; animation: status-pulse 2s ease-in-out infinite; }
.system-core { position: relative; height: 395px; display: grid; place-items: center; overflow: hidden; }
.core-grid { position: absolute; inset: 0; opacity: .32; background-image: linear-gradient(rgba(101,230,208,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(101,230,208,.1) 1px, transparent 1px); background-size: 34px 34px; mask-image: radial-gradient(circle at center, #000 10%, transparent 72%); }
.scan-beam { position: absolute; z-index: 1; width: 360px; height: 360px; border-radius: 50%; background: conic-gradient(from 0deg, transparent 0 78%, rgba(101,230,208,.13) 92%, transparent 100%); animation: spin 7s linear infinite; }
.orbit { position: absolute; z-index: 1; border: 1px solid rgba(101,230,208,.26); border-radius: 50%; box-shadow: 0 0 28px rgba(36,107,253,.06); }
.orbit-a { width: 300px; height: 300px; animation: spin 28s linear infinite; }
.orbit-b { width: 214px; height: 214px; border-style: dashed; animation: spin 18s linear reverse infinite; }
.orbit-a::before, .orbit-a::after, .orbit-b::before { content: ""; position: absolute; width: 7px; height: 7px; left: 50%; top: -4px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 18px var(--cyan); }
.orbit-a::after { left: auto; right: 10%; top: auto; bottom: 7%; background: var(--blue); box-shadow: 0 0 18px var(--blue); }
.core-mark { position: relative; z-index: 3; width: 132px; height: 132px; display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid rgba(125,240,220,.72); background: radial-gradient(circle at 50% 30%, #347fff, #1455dc 50%, #0c3694); clip-path: polygon(18% 0, 82% 0, 100% 18%, 100% 82%, 82% 100%, 18% 100%, 0 82%, 0 18%); box-shadow: 0 0 0 8px rgba(36,107,253,.08), 0 0 65px rgba(36,107,253,.48), inset 0 0 25px rgba(101,230,208,.24); }
.core-mark em { color: rgba(255,255,255,.62); font-size: 7px; font-style: normal; font-weight: 700; letter-spacing: .28em; }
.core-mark strong { margin: 1px 0 -2px; font-size: 44px; line-height: 1; letter-spacing: -.08em; text-shadow: 0 0 24px rgba(255,255,255,.35); }
.core-mark span { color: #baf9ed; font-size: 7px; font-weight: 700; letter-spacing: .14em; }
.data-node { position: absolute; z-index: 4; width: 128px; padding: 11px 12px 10px; border: 1px solid rgba(255,255,255,.14); background: rgba(5,22,36,.86); box-shadow: 0 12px 28px rgba(0,0,0,.17); backdrop-filter: blur(9px); }
.data-node::before { content: ""; position: absolute; top: 50%; width: 42px; height: 1px; background: linear-gradient(90deg, rgba(101,230,208,.52), transparent); }
.data-node small { display: block; margin-bottom: 3px; color: #68d8ff; font-size: 6px; font-weight: 700; letter-spacing: .13em; }
.data-node strong { display: block; color: #fff; font-size: 13px; line-height: 1.35; letter-spacing: .03em; }
.data-node span { display: block; margin-top: 2px; color: rgba(255,255,255,.48); font-size: 9px; }
.node-1 { left: 1%; top: 13%; }.node-2 { right: 1%; top: 20%; }.node-3 { left: 1%; bottom: 17%; }.node-4 { right: 1%; bottom: 10%; }
.node-1::before, .node-3::before { left: 100%; }
.node-2::before, .node-4::before { right: 100%; transform: rotate(180deg); }
.signal-row { position: relative; z-index: 3; display: grid; grid-template-columns: auto 1fr auto 1fr auto; align-items: center; gap: 10px; color: rgba(255,255,255,.58); font-size: 9px; font-weight: 650; letter-spacing: .12em; }
.signal-row span { display: flex; align-items: center; gap: 6px; }
.signal-row span b { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 9px var(--cyan); }
.signal-row i { height: 1px; background: linear-gradient(90deg, transparent, rgba(101,230,208,.7), transparent); }
.hero-foot { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); display: flex; justify-content: space-between; color: rgba(255,255,255,.3); font-size: 9px; letter-spacing: .24em; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes status-pulse { 50% { opacity: .38; transform: scale(.8); } }

.section { padding: 132px 0; }
.section-heading { margin-bottom: 72px; }
.section-heading h2 { margin: 0; font-family: var(--display); font-size: clamp(42px, 5vw, 68px); line-height: 1.1; letter-spacing: -.055em; }
.section-heading-row { display: grid; grid-template-columns: 1fr 420px; align-items: end; gap: 70px; }
.section-heading-row > p { margin: 0 0 9px; color: var(--muted); font-size: 16px; }
.positioning { background: var(--paper); }
.position-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 110px; align-items: start; }
.position-lead { margin: 0; font-size: 23px; line-height: 1.7; }
.principles { border-top: 1px solid var(--line); }
.principle { display: grid; grid-template-columns: 54px 160px 1fr; gap: 24px; padding: 29px 0; border-bottom: 1px solid var(--line); }
.principle > span { color: var(--green); font-size: 12px; }
.principle h3, .principle p { margin: 0; }
.principle h3 { font-size: 17px; }
.principle p { color: var(--muted); font-size: 14px; }

.product { color: var(--ink); background: #eaf0f1; border-block: 1px solid var(--line); }
.product .section-index { color: var(--blue); }
.product .section-heading-row > p { color: var(--muted); }
.product-stack { display: flex; flex-direction: column; gap: 90px; }
.product-card { display: grid; grid-template-columns: .9fr 1.1fr; min-height: 470px; border: 1px solid var(--line); background: rgba(255,255,255,.72); box-shadow: 0 24px 70px rgba(7,24,39,.055); }
.product-intro { padding: 54px; border-right: 1px solid var(--line); }
.product-kicker { margin: 0 0 26px; color: var(--blue); font-size: 10px; letter-spacing: .2em; }
.product-intro h3 { margin: 0; font-family: var(--display); font-size: clamp(34px, 4vw, 52px); line-height: 1.12; letter-spacing: -.045em; }
.product-intro > p:not(.product-kicker) { margin: 28px 0 0; max-width: 440px; color: var(--muted); font-size: 15px; }
.product-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; }
.product-meta span { padding: 5px 11px; border: 1px solid var(--line); background: rgba(255,255,255,.55); color: var(--muted); font-size: 10px; }
.product-flow { position: relative; display: flex; flex-direction: column; justify-content: center; gap: 30px; padding: 54px 58px; }
.flow-line { position: absolute; left: 77px; top: 90px; bottom: 90px; width: 1px; background: linear-gradient(var(--blue), var(--green)); }
.flow-step { position: relative; display: grid; grid-template-columns: 40px 118px 1fr; align-items: center; gap: 20px; min-height: 74px; }
.flow-step b { z-index: 1; width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--blue); border-radius: 50%; background: #fff; color: var(--blue); font-size: 10px; }
.flow-step span { font-weight: 700; }
.flow-step small { color: var(--muted); font-size: 13px; }
.product-note { display: grid; grid-template-columns: 100px 1fr auto; gap: 30px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--line); }
.product-note > span { color: var(--blue); font-size: 11px; letter-spacing: .16em; }
.product-note p { margin: 0; color: var(--muted); font-size: 14px; }
.product-note a { display: flex; gap: 18px; font-size: 13px; }
.product-note a span { color: var(--blue); }
.product-item-factory .product-kicker,
.product-item-factory .product-note > span,
.product-item-factory .product-note a span { color: var(--green); }
.product-item-factory .flow-line { background: linear-gradient(var(--green), #6fe3b5); }
.product-item-factory .flow-step b { border-color: var(--green); color: var(--green); }
.product-item-factory .product-card { background: linear-gradient(135deg, rgba(25,166,140,.09), rgba(255,255,255,.78) 48%); }
.scenario-block { margin-top: 42px; }
.scenario-head { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 40px; margin-bottom: 22px; }
.scenario-head > div:first-child > span { display: block; margin-bottom: 8px; color: var(--blue); font-size: 9px; font-weight: 750; letter-spacing: .2em; }
.scenario-head h4 { margin: 0; max-width: 660px; font-size: clamp(23px, 2.5vw, 32px); line-height: 1.35; letter-spacing: -.035em; }
.audience-tags { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 7px; max-width: 390px; }
.audience-tags span { padding: 5px 9px; border: 1px solid var(--line); background: rgba(255,255,255,.45); color: var(--muted); font-size: 9px; }
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.scenario-card { min-height: 300px; display: flex; flex-direction: column; padding: 30px 28px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.42); transition: background .3s, box-shadow .3s, transform .3s; }
.scenario-card:hover { z-index: 1; background: rgba(255,255,255,.9); box-shadow: 0 18px 42px rgba(7,24,39,.07); transform: translateY(-4px); }
.scenario-card > span { color: var(--blue); font-size: 9px; font-weight: 750; letter-spacing: .14em; }
.scenario-card h5 { margin: 22px 0 14px; font-size: 17px; line-height: 1.65; }
.scenario-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.scenario-card b { margin-top: auto; padding-top: 24px; color: #1855c8; font-size: 11px; font-weight: 700; }
.scenario-card b::before { content: "→"; margin-right: 8px; color: var(--green); }
.product-item-factory .scenario-head > div:first-child > span,
.product-item-factory .scenario-card > span,
.product-item-factory .scenario-card b { color: var(--green); }
.product-item-factory .scenario-card b::before { color: var(--blue); }

.services { background: var(--paper); }
.action-lab-entry { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 42px; align-items: end; margin: 0 0 28px; padding: 34px 38px; overflow: hidden; color: #fff; background: linear-gradient(120deg,#092b43 0%,#0c5260 72%,#107668 100%); box-shadow: 0 20px 48px rgba(7,24,39,.12); transition: transform .3s, box-shadow .3s; }
.action-lab-entry::after { content: ""; position: absolute; right: -80px; top: -120px; width: 320px; height: 320px; border: 1px solid rgba(126,240,220,.22); border-radius: 50%; box-shadow: 0 0 0 48px rgba(126,240,220,.035),0 0 0 96px rgba(36,107,253,.025); }
.action-lab-entry:hover { transform: translateY(-4px); box-shadow: 0 26px 60px rgba(7,24,39,.18); }
.action-lab-entry > div,.action-lab-entry > strong { position: relative; z-index: 1; }
.action-lab-entry span { color: #7ef0dc; font-size: 9px; font-weight: 750; letter-spacing: .18em; }
.action-lab-entry h3 { margin: 12px 0 6px; font-family: var(--display); font-size: clamp(27px,3.1vw,42px); letter-spacing: -.035em; }
.action-lab-entry p { margin: 0; color: rgba(255,255,255,.65); font-size: 13px; }
.action-lab-entry strong { display: flex; align-items: center; gap: 20px; padding: 13px 0 8px 24px; border-left: 1px solid rgba(255,255,255,.18); font-size: 13px; white-space: nowrap; }
.action-lab-entry i { color: #7ef0dc; font-style: normal; font-size: 17px; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-card { position: relative; min-height: 440px; padding: 20px 20px 28px; overflow: hidden; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.24); transition: background .35s, border-color .35s, box-shadow .35s, transform .35s; }
.service-card:hover { z-index: 1; background: rgba(255,255,255,.96); border-color: rgba(36,107,253,.32); box-shadow: 0 22px 54px rgba(36,107,253,.14), inset 0 1px 0 rgba(255,255,255,.9); transform: translateY(-8px); }
.service-card::after { content: ""; position: absolute; inset: auto -30% -45% 20%; height: 60%; pointer-events: none; opacity: 0; background: radial-gradient(circle, rgba(36,107,253,.18), transparent 66%); transition: opacity .35s; }
.service-card:hover::after { opacity: 1; }
.service-no { position: absolute; right: 24px; top: 25px; color: #91a0aa; font-size: 10px; }
.service-visual { position: relative; height: 174px; margin: 0 0 28px; overflow: hidden; background-color: #eaf1f8; transition: transform .45s cubic-bezier(.2,.7,.2,1), filter .35s, box-shadow .35s; }
.service-visual img { width: 100%; height: 100%; object-fit: cover; object-position: center 48%; }
.service-visual::after { content: ""; position: absolute; inset: 0; box-shadow: inset 0 0 0 1px rgba(36,107,253,.08); transition: box-shadow .35s; }
.service-card:hover .service-visual { transform: scale(1.025); filter: saturate(1.08) contrast(1.03); box-shadow: 0 14px 32px rgba(36,107,253,.15); }
.service-card:hover .service-visual::after { box-shadow: inset 0 0 0 1px rgba(36,107,253,.28), inset 0 0 34px rgba(101,230,208,.12); }
.service-card h3 { position: relative; z-index: 1; margin: 0 0 12px; font-size: 19px; transition: color .3s, text-shadow .3s; }
.service-card p { position: relative; z-index: 1; margin: 0; color: var(--muted); font-size: 14px; transition: color .3s; }
.service-card ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 25px 0 0; padding: 0; list-style: none; }
.service-card li { position: relative; z-index: 1; padding: 4px 8px; background: rgba(7,24,39,.045); color: #61717d; font-size: 10px; transition: color .3s, background .3s; }
.service-card:hover h3 { color: var(--blue); text-shadow: 0 0 22px rgba(36,107,253,.18); }
.service-card:hover p { color: #354a5a; }
.service-card:hover li { color: #1855c8; background: rgba(36,107,253,.09); }
.service-card-linked { padding-bottom: 72px; }
.service-link { position: absolute; z-index: 2; left: 20px; bottom: 26px; display: inline-flex; align-items: center; gap: 9px; color: var(--blue); font-size: 12px; font-weight: 700; }
.service-link span { color: var(--green); transition: transform .25s; }
.service-link:hover span { transform: translate(3px,-3px); }

.about { background: #eaf0f1; border-top: 1px solid var(--line); }
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 120px; }
.about .section-heading { margin: 0; }
.about-copy { padding-top: 42px; }
.about-lead { margin: 0 0 24px; color: var(--ink); font-size: 24px; font-weight: 600; }
.about-copy > p:not(.about-lead) { margin: 0; max-width: 560px; color: var(--muted); font-size: 16px; line-height: 2; }
.about-tags { display: flex; gap: 10px; margin-top: 38px; }
.about-tags span { min-width: 66px; padding: 7px 14px; text-align: center; border: 1px solid var(--line); font-size: 11px; letter-spacing: .14em; }

.contact { padding: 0; background: #eaf0f1; }
.contact-panel { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 70px; padding: 72px 78px; color: #fff; background: var(--blue); }
.contact .section-index { color: rgba(255,255,255,.62); }
.contact h2 { margin: 0; font-family: var(--display); font-size: clamp(38px, 4vw, 56px); letter-spacing: -.05em; }
.contact p:not(.section-index) { margin: 16px 0 0; color: rgba(255,255,255,.7); }
.contact-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.button-light { min-width: 246px; justify-content: space-between; color: var(--ink); background: #fff; }
.site-url { color: rgba(255,255,255,.7); font-size: 13px; }

.footer { padding: 72px 0 28px; color: #fff; background: var(--ink); }
.footer-main { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 60px; }
.footer-main img { width: 168px; height: auto; filter: brightness(0) invert(1); }
.footer-main p { margin: 16px 0 0; color: rgba(255,255,255,.44); font-size: 13px; }
.footer-links { display: flex; gap: 30px; color: rgba(255,255,255,.58); font-size: 12px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.3); font-size: 9px; letter-spacing: .12em; }

/* Product detail pages */
.detail-hero { position: relative; min-height: 660px; display: flex; align-items: center; overflow: hidden; padding: 150px 0 90px; color: #fff; background: radial-gradient(circle at 76% 42%, #12485b 0, var(--ink-2) 28%, var(--ink) 68%); }
.detail-hero::after { content: ""; position: absolute; right: -12%; top: 5%; width: 620px; height: 620px; border: 1px solid rgba(101,230,208,.2); border-radius: 50%; box-shadow: 0 0 0 70px rgba(36,107,253,.035), 0 0 0 140px rgba(101,230,208,.025); }
.detail-hero .shell { position: relative; z-index: 2; }
.detail-back { display: inline-flex; gap: 10px; margin-bottom: 52px; color: rgba(255,255,255,.55); font-size: 12px; letter-spacing: .08em; }
.detail-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 90px; align-items: end; }
.detail-kicker { margin: 0 0 22px; color: var(--cyan); font-size: 10px; font-weight: 700; letter-spacing: .22em; }
.detail-hero h1 { margin: 0; max-width: 760px; font-family: var(--display); font-size: clamp(52px, 6.7vw, 88px); line-height: 1.03; letter-spacing: -.06em; }
.detail-hero h1 span { color: #7ef0dc; }
.detail-summary { margin: 0; padding: 28px 0 4px; border-top: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.7); font-size: 17px; line-height: 1.9; }
.detail-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.detail-tags span { padding: 6px 10px; border: 1px solid rgba(255,255,255,.18); color: rgba(255,255,255,.68); font-size: 10px; }
.detail-section { padding: 112px 0; background: var(--paper); }
.detail-section.alt { background: #eaf0f1; border-block: 1px solid var(--line); }
.detail-section-head { display: grid; grid-template-columns: .7fr 1.3fr; gap: 80px; margin-bottom: 56px; }
.detail-section-head > span { color: var(--blue); font-size: 10px; font-weight: 750; letter-spacing: .2em; }
.detail-section-head h2 { margin: 0; max-width: 820px; font-family: var(--display); font-size: clamp(36px, 4.5vw, 58px); line-height: 1.17; letter-spacing: -.045em; }
.detail-section-head p { margin: 20px 0 0; max-width: 720px; color: var(--muted); }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.value-card { min-height: 310px; padding: 30px 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.45); }
.value-card > span { color: var(--blue); font-size: 10px; font-weight: 750; letter-spacing: .14em; }
.value-card h3 { margin: 28px 0 14px; font-size: 20px; }
.value-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.value-card b { display: block; margin-top: 24px; color: var(--green); font-size: 11px; }
.ai-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.ai-card { position: relative; min-height: 260px; padding: 34px 36px; overflow: hidden; border: 1px solid var(--line); background: rgba(255,255,255,.64); transition: transform .3s, box-shadow .3s, border-color .3s; }
.ai-card::after { content: "AI"; position: absolute; right: 18px; bottom: -28px; color: rgba(36,107,253,.045); font-size: 110px; font-weight: 800; line-height: 1; }
.ai-card:hover { transform: translateY(-4px); border-color: rgba(36,107,253,.28); box-shadow: 0 18px 44px rgba(36,107,253,.09); }
.ai-card span { color: var(--green); font-size: 10px; font-weight: 750; letter-spacing: .15em; }
.ai-card h3 { position: relative; z-index: 1; margin: 24px 0 12px; font-size: 22px; }
.ai-card p { position: relative; z-index: 1; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.detail-loop { display: grid; grid-template-columns: repeat(5, 1fr); }
.detail-loop article { position: relative; min-height: 190px; padding: 28px 24px; border-block: 1px solid var(--line); border-right: 1px solid var(--line); }
.detail-loop article:first-child { border-left: 1px solid var(--line); }
.detail-loop article:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -10px; top: 50%; width: 20px; color: var(--green); background: var(--paper); text-align: center; transform: translateY(-50%); }
.detail-loop b { color: var(--blue); font-size: 10px; }
.detail-loop h3 { margin: 22px 0 10px; font-size: 17px; }
.detail-loop p { margin: 0; color: var(--muted); font-size: 12px; }
.integration-bar { display: flex; flex-wrap: wrap; gap: 10px; }
.integration-bar span { min-width: 112px; padding: 13px 16px; border: 1px solid var(--line); background: rgba(255,255,255,.55); text-align: center; color: #435767; font-size: 12px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); background: rgba(255,255,255,.36); }
.faq-list summary { position: relative; padding: 26px 58px 26px 26px; cursor: pointer; font-size: 17px; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 26px; top: 50%; color: var(--blue); font-size: 22px; font-weight: 400; transform: translateY(-50%); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: 0; max-width: 900px; padding: 0 58px 26px 26px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.detail-cta { padding: 0 0 112px; background: #eaf0f1; }
.action-hero { background: radial-gradient(circle at 76% 42%, #175b60 0, #0a3548 30%, var(--ink) 70%); }
.lab-challenges { grid-template-columns: repeat(4,1fr); }
.lab-challenges .value-card { min-height: 300px; }
.deliverable-grid { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.deliverable-grid article { display: grid; grid-template-columns: 46px 1fr; gap: 22px; min-height: 170px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.deliverable-grid article > span { color: var(--blue); font-size: 10px; font-weight: 750; letter-spacing: .18em; }
.deliverable-grid h3 { margin: 0 0 10px; font-size: 19px; }
.deliverable-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.option-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.option-grid article { min-height: 360px; padding: 32px; border: 1px solid var(--line); background: rgba(255,255,255,.68); }
.option-grid article.featured { color: #fff; border-color: #174d5c; background: linear-gradient(145deg,#0b2d43,#0d5660); box-shadow: 0 24px 55px rgba(7,24,39,.14); }
.option-grid article > span { color: var(--blue); font-size: 10px; font-weight: 750; letter-spacing: .2em; }
.option-grid .featured > span { color: var(--cyan); }
.option-grid h3 { margin: 24px 0 14px; font-size: 24px; }
.option-grid p { min-height: 84px; margin: 0; color: var(--muted); font-size: 14px; }
.option-grid .featured p { color: rgba(255,255,255,.7); }
.option-grid ul { margin: 28px 0 0; padding: 22px 0 0; border-top: 1px solid var(--line); list-style: none; }
.option-grid .featured ul { border-color: rgba(255,255,255,.15); }
.option-grid li { position: relative; margin: 12px 0; padding-left: 18px; color: #435868; font-size: 13px; }
.option-grid .featured li { color: rgba(255,255,255,.78); }
.option-grid li::before { content: ""; position: absolute; left: 0; top: .65em; width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.fit-grid-site { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.fit-grid-site article { padding: 34px; border: 1px solid var(--line); background: #fff; }
.fit-grid-site article.caution { background: #f5f3ec; }
.fit-grid-site article > span { color: var(--blue); font-size: 11px; font-weight: 750; letter-spacing: .14em; }
.fit-grid-site ul { margin: 24px 0 0; padding-left: 20px; color: var(--muted); }
.fit-grid-site li { margin: 12px 0; padding-left: 5px; }

.reveal { opacity: 1; transform: none; }
.reveal.visible { animation: reveal-in .75s cubic-bezier(.2,.7,.2,1) both; }
.delay-1.visible { animation-delay: .08s; }.delay-2.visible { animation-delay: .16s; }.delay-3.visible { animation-delay: .24s; }
@keyframes reveal-in { from { opacity: .01; transform: translateY(28px); } to { opacity: 1; transform: none; } }
@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; } }

@media (max-width: 1000px) {
  :root { --shell: min(100% - 48px, 900px); }
  .desktop-nav, .nav-cta { display: none; }
  .menu-toggle { display: block; }
  .mobile-nav { position: fixed; left: 0; right: 0; top: 76px; display: flex; flex-direction: column; gap: 0; padding: 10px 24px 26px; color: #fff; background: rgba(7,24,39,.98); transform: translateY(-130%); visibility: hidden; transition: transform .3s, visibility .3s; }
  .mobile-nav.open { transform: none; visibility: visible; }
  .mobile-nav a { padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .hero { height: auto; min-height: 850px; max-height: none; }
  .hero-layout { grid-template-columns: 1fr; gap: 54px; padding-block: 155px 90px; }
  .hero-copy { max-width: 680px; }
  .hero-system { min-height: 450px; }
  .position-grid { grid-template-columns: 1fr; gap: 54px; }
  .section-heading-row { grid-template-columns: 1fr 360px; }
  .product-card { grid-template-columns: 1fr; }
  .product-intro { border-right: 0; border-bottom: 1px solid var(--line); }
  .scenario-head { grid-template-columns: 1fr; align-items: start; gap: 18px; }
  .audience-tags { justify-content: flex-start; max-width: none; }
  .scenario-grid { grid-template-columns: 1fr; }
  .scenario-card { min-height: 0; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { gap: 70px; }
  .detail-hero-grid, .detail-section-head { grid-template-columns: 1fr; gap: 34px; }
  .lab-challenges { grid-template-columns: repeat(2,1fr); }
  .option-grid { grid-template-columns: 1fr; }
  .option-grid article { min-height: 0; }
  .option-grid p { min-height: 0; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-loop { grid-template-columns: 1fr; }
  .detail-loop article { min-height: 0; border-left: 1px solid var(--line); border-top: 0; }
  .detail-loop article:first-child { border-top: 1px solid var(--line); }
  .detail-loop article:not(:last-child)::after { content: "↓"; left: 50%; right: auto; top: auto; bottom: -13px; transform: translateX(-50%); background: var(--paper); }
}

@media (max-width: 680px) {
  :root { --shell: calc(100% - 36px); }
  .nav-shell { height: 70px; }
  .brand img { width: 138px; }
  .mobile-nav { top: 70px; }
  .hero { min-height: auto; }
  .hero-layout { padding-block: 132px 100px; }
  .hero h1 { font-size: clamp(49px, 15vw, 67px); }
  .hero-lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-system { min-height: 340px; padding: 18px; }
  .system-core { height: 260px; }
  .orbit-a { width: 230px; height: 230px; }.orbit-b { width: 170px; height: 170px; }
  .core-mark { width: 94px; height: 94px; }.core-mark strong { font-size: 32px; }
  .data-node { width: 102px; padding: 8px 9px; }
  .data-node small, .data-node span { display: none; }
  .data-node strong { font-size: 11px; }
  .data-node::before { width: 24px; }
  .node-1 { left: 0; }.node-2 { right: 0; }.node-3 { left: 0; }.node-4 { right: 0; }
  .signal-row, .hero-foot { display: none; }
  .section { padding: 90px 0; }
  .section-heading { margin-bottom: 48px; }
  .section-heading-row { display: block; }
  .section-heading-row > p { margin-top: 22px; }
  .principle { grid-template-columns: 38px 1fr; gap: 12px; }
  .principle p { grid-column: 2; }
  .product-intro, .product-flow { padding: 36px 24px; }
  .product-flow { gap: 26px; }
  .flow-line { left: 43px; }
  .flow-step { grid-template-columns: 40px 1fr; gap: 15px; }
  .flow-step small { grid-column: 2; }
  .product-note { grid-template-columns: 1fr; gap: 10px; }
  .product-note a { margin-top: 8px; }
  .scenario-block { margin-top: 34px; }
  .scenario-card { padding: 26px 22px; }
  .scenario-card b { margin-top: 20px; padding-top: 0; }
  .service-grid { grid-template-columns: 1fr; }
  .action-lab-entry { grid-template-columns: 1fr; gap: 26px; padding: 30px 26px; }
  .action-lab-entry strong { padding: 18px 0 0; border-top: 1px solid rgba(255,255,255,.18); border-left: 0; }
  .service-card { min-height: 410px; }
  .service-visual { height: 210px; }
  .about-layout { grid-template-columns: 1fr; gap: 12px; }
  .about-copy { padding-top: 0; }
  .about-tags { flex-wrap: wrap; }
  .contact-panel { width: 100%; grid-template-columns: 1fr; padding: 54px 28px; gap: 36px; }
  .footer-main { flex-direction: column; gap: 40px; }
  .footer-links { flex-wrap: wrap; gap: 16px 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .detail-hero { min-height: auto; padding: 120px 0 76px; }
  .detail-back { margin-bottom: 36px; }
  .detail-summary { font-size: 15px; }
  .detail-section { padding: 82px 0; }
  .lab-challenges, .deliverable-grid, .fit-grid-site { grid-template-columns: 1fr; }
  .deliverable-grid article { min-height: 0; padding: 25px 22px; }
  .value-grid, .ai-grid { grid-template-columns: 1fr; }
  .value-card, .ai-card { min-height: 0; }
  .detail-cta { padding-bottom: 82px; }
}

/* 备案入口与版权信息在桌面和窄屏均可清晰读取。 */
.footer-bottom { flex-wrap: wrap; gap: 12px 24px; font-size: 11px; color: rgba(255,255,255,.55); letter-spacing: .06em; }
.icp-link { color: rgba(255,255,255,.72); letter-spacing: normal; }
.icp-link:hover { color: #fff; text-decoration: underline; }
.icp-link:focus-visible { outline: 2px solid var(--cyan); outline-offset: 5px; }