/* Linkai Digital — corporate blue visual system, no third-party dependencies. */
:root {
  --ink: #152238;
  --muted: #657187;
  --blue: #2468f2;
  --blue-dark: #1553cc;
  --line: #e5eaf2;
  --navy: #071021;
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: Consolas, "SFMono-Regular", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: #fff; font: 15px/1.75 var(--font); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; cursor: pointer; }
a, button { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
img, svg { display: block; }
img { max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
[hidden] { display: none !important; }
::selection { color: #fff; background: var(--blue); }
:focus-visible { outline: 3px solid #598dff; outline-offset: 5px; }
.container { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.icon { width: 22px; height: 22px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.icon-library { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 100; background: #fff; color: var(--blue); padding: 12px 20px; }
.skip-link:focus { top: 12px; }
.section { padding: 96px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 44px; }
.section-eyebrow { display: flex; align-items: center; gap: 10px; color: var(--blue); font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 16px; }
.section-eyebrow:before { content: ""; width: 22px; height: 2px; background: currentColor; }
h2 { font-size: clamp(30px, 3vw, 40px); line-height: 1.45; font-weight: 600; letter-spacing: -.7px; margin-bottom: 0; }
.section-description { color: var(--muted); font-size: 15px; line-height: 1.9; margin: 0 0 3px; }
.centered { display: flex; flex-direction: column; align-items: center; gap: 0; text-align: center; }
.centered .section-description { margin-top: 16px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 29px; min-height: 52px; padding: 13px 24px; border: 1px solid transparent; border-radius: 3px; font-size: 14px; font-weight: 500; transition: background .2s, border-color .2s, transform .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #fff; background: var(--blue); box-shadow: 0 7px 28px #2468f22a; }
.button-primary:hover { background: #3c7aff; }
.button-outline { color: #e6edfc; border-color: #ffffff4a; background: #ffffff04; }
.button-outline:hover { border-color: #b5caff; background: #ffffff0c; }
.button .icon { width: 19px; height: 19px; }
.link-arrow { display: inline-flex; align-items: center; gap: 16px; font-size: 14px; color: var(--blue); font-weight: 500; }
.link-arrow .icon { width: 19px; height: 19px; transition: transform .2s; }
.link-arrow:hover .icon { transform: translateX(5px); }

/* Navigation */
.site-header { position: sticky; top: 0; height: 80px; z-index: 40; background: #fffffffa; border-bottom: 1px solid #edf0f6; backdrop-filter: blur(18px); transition: box-shadow .2s; }
.site-header.is-scrolled { box-shadow: 0 4px 24px #162e5910; }
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark { width: 37px; height: 37px; stroke: var(--blue); stroke-width: 4.6; fill: none; }
.brand-name { font-size: 22px; font-weight: 700; letter-spacing: 2px; line-height: 1.25; color: #17243b; }
.brand-name>span { display: block; margin-top: 4px; font: 8px/1.5 var(--font); letter-spacing: 2.4px; color: #6c7d98; }
.main-nav { height: 100%; display: flex; align-items: center; gap: 35px; font-size: 14px; }
.nav-link { height: 100%; display: flex; align-items: center; position: relative; transition: color .2s; }
.nav-link:after { content: ""; height: 2px; position: absolute; bottom: 0; left: 50%; right: 50%; background: var(--blue); transition: left .2s, right .2s; }
.nav-link.active, .nav-link:hover { color: var(--blue); }
.nav-link.active:after, .nav-link:hover:after { left: 0; right: 0; }
.nav-contact { display: flex; align-items: center; gap: 25px; background: var(--blue); color: #fff; padding: 10px 20px; margin-left: 18px; border-radius: 3px; transition: background .2s; }
.nav-contact:hover { background: var(--blue-dark); }
.nav-contact .icon { width: 17px; height: 17px; }
.menu-toggle { display: none; }

/* Immersive brand opening */
.hero { background: var(--navy); color: #fff; overflow: hidden; }
.hero-stage { height: 555px; position: relative; display: flex; align-items: center; isolation: isolate; }
.hero-art { position: absolute; inset: 0; overflow: hidden; z-index: -1; background: #030b19; }
.hero-art:after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #030b19 0%, #030b19e6 18%, #030b1960 40%, transparent 63%); }
.hero-image { position: absolute; max-width: none; width: min(1380px, 108vw); height: calc(100% + 90px); right: -18px; top: -42px; object-fit: contain; object-position: right center; animation: hero-breathe 16s ease-in-out infinite; }
.hero-inner { position: relative; z-index: 2; }
.hero-copy { width: 58%; padding-block: 35px; }
.hero-eyebrow { display: flex; align-items: center; gap: 11px; color: #a1b8da; font-size: 13px; letter-spacing: 1.6px; margin-bottom: 25px; }
.hero-eyebrow>span { width: 6px; height: 6px; border-radius: 50%; background: #66adff; box-shadow: 0 0 14px #4a9cff; }
.hero h1 { font-size: clamp(48px, 4.8vw, 68px); font-weight: 600; line-height: 1.32; letter-spacing: 1px; margin-bottom: 25px; }
.hero h1>span { background: linear-gradient(110deg, #fff 5%, #c3ddff 60%, #82b7ff); color: #d5e8ff; -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-description { color: #9caec8; font-size: 15px; line-height: 2; margin-bottom: 31px; }
.hero-actions { display: flex; align-items: center; gap: 17px; }
.hero-shortcuts { position: relative; z-index: 3; background: #0d192c; border-top: 1px solid #ffffff12; }
.shortcut-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.shortcut-grid>a { display: flex; align-items: center; gap: 20px; padding: 25px 34px; min-height: 106px; border-left: 1px solid #ffffff12; transition: background .25s; }
.shortcut-grid>a:first-child { padding-left: 0; border-left: 0; }
.shortcut-grid>a:last-child { padding-right: 0; }
.shortcut-grid>a:hover { background: #2a67c917; }
.shortcut-icon { height: 34px; width: 34px; fill: none; stroke: #7eafff; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
.shortcut-grid strong { display: block; font-size: 17px; font-weight: 500; margin-bottom: 3px; }
.shortcut-grid div>span { display: block; color: #8e9eb8; font-size: 12px; }
.shortcut-grid>a>.icon { margin-left: auto; color: #7595c3; width: 19px; height: 19px; }

/* Service portfolio */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; transition: transform .25s, border-color .25s, box-shadow .25s; }
.service-card:hover { transform: translateY(-6px); border-color: #a8c7ff; box-shadow: 0 16px 35px #1a4f9f0e; }
.service-art { height: 190px; background: linear-gradient(130deg, #f5f8fd, #edf3fc); overflow: hidden; }
.service-art img { width: 100%; height: 100%; object-fit: contain; transition: transform .4s; }
.service-card:hover .service-art img { transform: scale(1.045); }
.service-content { padding: 27px 30px 30px; }
.service-category { display: block; color: #657b9f; font-size: 12px; margin-bottom: 7px; }
.service-card h3 { font-size: 25px; font-weight: 600; margin: 0 0 13px; }
.service-card p { color: var(--muted); font-size: 14px; line-height: 1.9; margin-bottom: 20px; }
.service-features { padding: 0; margin: 0 0 26px; list-style: none; display: flex; flex-direction: column; gap: 7px; font-size: 13px; color: #53627a; }
.service-features li { display: flex; align-items: center; gap: 9px; }
.service-features li:before { content: ""; width: 4px; height: 4px; background: #7fa6e6; border-radius: 1px; }
.service-content .link-arrow { font-size: 13px; }
.service-card-ai { border-color: #c7d9f8; }
.service-card-ai .service-art { background: linear-gradient(130deg, #eff5ff, #dfeaff); }

/* Scenario explorer */
.solutions-section { background: #f5f7fb; }
.solutions-section .section-heading { margin-bottom: 31px; }
.solution-tabs { display: flex; justify-content: center; border-bottom: 1px solid #dde4ef; gap: 54px; margin-bottom: 36px; }
.solution-tab { position: relative; display: flex; align-items: center; justify-content: center; gap: 10px; background: transparent; border: 0; padding: 13px 14px 20px; color: #6b7890; font-size: 16px; transition: color .2s; }
.solution-tab:after { content: ""; position: absolute; left: 50%; right: 50%; height: 3px; bottom: -1px; background: var(--blue); transition: left .2s, right .2s; }
.solution-tab .icon { width: 23px; height: 23px; }
.solution-tab.active, .solution-tab:hover { color: var(--blue); }
.solution-tab.active:after { left: 0; right: 0; }
.solution-panel { display: grid; grid-template-columns: 1.2fr 1fr; min-height: 424px; background: #fff; border: 1px solid #e8edf5; border-radius: 9px; overflow: hidden; animation: panel-in .35s ease-out; }
.scenario-visual { min-width: 0; position: relative; display: flex; align-items: center; justify-content: center; min-height: 424px; overflow: hidden; }
.web-scene { background: radial-gradient(ellipse at 50% 45%, #d1e0f9, #e8effa 75%); }
.scenario-copy { padding: 48px 40px; display: flex; flex-direction: column; justify-content: center; }
.scenario-label { color: #6b86b0; font-size: 12px; margin-bottom: 15px; }
.scenario-copy h3 { font-size: 27px; font-weight: 600; line-height: 1.55; letter-spacing: -.5px; margin-bottom: 19px; }
.scenario-copy>p { color: var(--muted); font-size: 14px; line-height: 1.9; margin-bottom: 20px; }
.scenario-list { padding: 0; margin: 0 0 28px; list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 13px; color: #56657d; }
.scenario-list li { display: flex; gap: 9px; align-items: flex-start; }
.scenario-list li:before { content: "✓"; color: #3e80ef; font-size: 12px; }
.illustration-note { position: absolute; bottom: 16px; left: 0; right: 0; text-align: center; color: #637c9d; font-size: 10px; letter-spacing: .4px; }
.browser-demo { width: 87%; background: #fff; border-radius: 7px; border: 1px solid #c3d3eb; box-shadow: 0 25px 45px #2346741a; transform: perspective(1100px) rotateY(7deg) rotateX(3deg) rotateZ(-2deg); overflow: hidden; margin-bottom: 11px; }
.demo-toolbar { height: 29px; padding: 0 13px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #e9eef6; color: #8595ad; font-size: 10px; }
.demo-toolbar>span:first-child { display: flex; gap: 4px; }
.demo-toolbar i { height: 5px; width: 5px; border-radius: 50%; background: #bccbe1; }
.demo-toolbar small { font-size: 7px; letter-spacing: .5px; }
.demo-site-nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }
.demo-site-nav strong { color: #172c51; font-size: 10px; letter-spacing: 1px; }
.demo-site-nav strong>span { font-size: 6px; vertical-align: super; margin-left: 2px; }
.demo-site-nav>span { color: #7f8da4; font-size: 6px; }
.demo-site-hero { display: flex; align-items: center; position: relative; background: #0b1c3a; padding: 32px 28px; min-height: 207px; overflow: hidden; }
.demo-site-hero>div:first-child { position: relative; z-index: 2; }
.demo-site-hero div>span { font-size: 7px; color: #91b0dc; letter-spacing: .7px; }
.demo-site-hero h3 { font-size: 28px; color: #f2f7ff; line-height: 1.5; font-weight: 500; margin: 12px 0 17px; letter-spacing: 1px; }
.demo-site-hero b { display: flex; align-items: center; justify-content: space-between; padding: 7px 10px; width: 82px; font-size: 7px; color: #fff; background: #347cf7; font-weight: 400; }
.demo-orb { position: absolute; right: 18px; top: 35px; width: 165px; height: 165px; border-radius: 50%; background: radial-gradient(circle at 30% 25%, #b4e3ff 1%, #4a9fff 18%, #1c4ca5 45%, #08152d 72%); box-shadow: inset -15px -5px 35px #020d27, inset 3px 1px 14px #d1e8ff70, 0 0 40px #3789ff26; }
.demo-orb i { position: absolute; inset: -7px; border: 7px solid #8dc6ff7a; border-radius: 50%; transform: rotate(-30deg) scaleY(.35); box-shadow: 0 2px 8px #61a8ff45; }
.demo-orb i:nth-child(2) { inset: 10px -4px; transform: rotate(45deg) scaleY(.4); border-width: 4px; border-color: #b2dcff66; }
.demo-orb i:nth-child(3) { inset: 26px -14px; transform: rotate(-30deg) scaleY(.4); border-width: 2px; border-color: #d4eeff5a; }
.demo-site-bottom { display: flex; justify-content: space-around; font-size: 7px; color: #7b8ba3; padding: 17px 0; }

/* Product illustrations are deliberately labeled, not customer cases. */
.mini-scene { background: linear-gradient(135deg, #e8effa, #dbe8fa); }
.mini-demo { position: relative; height: 365px; width: 100%; }
.demo-phone { position: absolute; height: 342px; width: 194px; background: #fff; border: 6px solid #1c2d48; border-radius: 27px; box-shadow: 18px 23px 40px #25497920; top: 8px; left: 48%; transform: translateX(-35%) rotate(5deg); overflow: hidden; padding: 8px 10px; }
.phone-status { display: flex; justify-content: space-between; font: 7px/1.5 var(--font); padding: 0 5px; }
.phone-title { display: flex; align-items: center; justify-content: space-between; font-size: 9px; margin: 12px 0; }
.phone-title>span { border: 1px solid #e7edf5; border-radius: 10px; padding: 0 5px; font-size: 7px; }
.phone-banner { background: linear-gradient(120deg, #0a3277, #397fee); padding: 15px 12px; color: #fff; border-radius: 5px; position: relative; overflow: hidden; }
.phone-banner small { font-size: 6px; color: #bad4ff; position: relative; z-index: 1; }
.phone-banner strong { font-size: 20px; display: block; line-height: 1.4; margin: 7px 0 10px; font-weight: 500; position: relative; z-index: 1; }
.phone-banner span { font-size: 6px; color: #d2e4ff; }
.phone-banner i { position: absolute; right: -17px; top: 30px; width: 80px; height: 80px; border: 12px solid #72b7ff4d; border-radius: 50%; box-shadow: inset 0 0 0 8px #a2d2ff26; transform: rotateX(35deg) rotateY(30deg); }
.phone-grid { display: flex; justify-content: space-around; text-align: center; font-size: 6px; color: #5d7090; margin: 14px 0; }
.phone-grid b { font-size: 20px; display: block; color: #598be2; font-weight: 400; }
.phone-booking { position: relative; background: #f0f5fd; border: 1px solid #e5edfa; padding: 10px 9px; border-radius: 4px; }
.phone-booking strong { font-size: 8px; display: block; font-weight: 500; }
.phone-booking p { font-size: 6px; color: #8a9ab4; margin: 4px 0 7px; }
.phone-booking>span { font-size: 6px; color: #4580df; }
.phone-bottom { position: absolute; left: 10px; right: 10px; bottom: 7px; display: flex; justify-content: space-around; text-align: center; color: #8b9cb8; font-size: 13px; }
.phone-bottom>span:first-child { color: var(--blue); }
.phone-bottom small { display: block; font-size: 5px; line-height: 1.3; }
.mini-floating-card { position: absolute; top: 67px; left: 10%; z-index: 2; width: 146px; background: #ffffffed; border: 1px solid #d4e2f7; border-radius: 9px; box-shadow: 0 12px 25px #3e649e17; padding: 18px; transform: rotate(-5deg); }
.mini-check { display: grid; place-items: center; width: 29px; height: 29px; border-radius: 8px; background: #e8f1ff; color: var(--blue); margin-bottom: 11px; }
.mini-floating-card strong { display: block; font-size: 11px; font-weight: 500; }
.mini-floating-card small { display: block; font-size: 8px; color: #8095b5; margin-top: 5px; }
.mini-floating-card>div { display: flex; flex-direction: column; gap: 5px; margin-top: 17px; }
.mini-floating-card i { width: 100%; height: 3px; border-radius: 2px; background: #e8eef8; }
.mini-floating-card i:nth-child(2) { width: 77%; }
.mini-floating-card i:nth-child(3) { width: 88%; }
.mini-float-tag { position: absolute; bottom: 36px; right: 7%; z-index: 3; display: flex; align-items: center; gap: 10px; padding: 13px 16px; background: #fff; border: 1px solid #d4e2f7; border-radius: 7px; box-shadow: 0 10px 20px #3e649e14; color: #4b6f9f; font-size: 10px; }
.mini-float-tag .icon { width: 20px; height: 20px; color: #6d9ce6; }
.ai-scene { background: radial-gradient(ellipse at 50% 50%, #1c396c, #0a1b38 85%); }
.ai-scene .illustration-note { color: #8fa9cf; }
.ai-demo { width: 88%; border: 1px solid #86b3ff3b; border-radius: 9px; padding: 23px; color: #d4e5ff; background: #112746a1; margin-bottom: 12px; box-shadow: 0 15px 35px #020d251f; }
.ai-demo-top { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #ffffff14; padding-bottom: 17px; }
.ai-demo-top strong { font-size: 11px; font-weight: 500; display: flex; align-items: center; gap: 7px; }
.ai-demo-top strong>span { height: 5px; width: 5px; border-radius: 50%; background: #6daaff; box-shadow: 0 0 8px #5b9cff; }
.ai-demo-top small { color: #8ca6ce; font-size: 8px; border: 1px solid #ffffff20; padding: 2px 7px; border-radius: 3px; }
.ai-workflow { display: flex; align-items: center; justify-content: space-between; margin: 27px 0; }
.flow-node { width: 80px; padding: 13px 5px; border: 1px solid #7cabef30; border-radius: 5px; background: #2a4b781c; text-align: center; }
.flow-node>.icon { color: #87b8ff; height: 25px; width: 25px; margin: 0 auto 10px; }
.flow-node strong { font-size: 9px; font-weight: 500; display: block; }
.flow-node small { display: block; font-size: 7px; color: #8faace; margin-top: 4px; }
.flow-core { display: flex; flex-direction: column; justify-content: center; align-items: center; height: 89px; width: 89px; border-radius: 20px; border: 1px solid #9ccaff; box-shadow: inset 0 0 22px #69b8ff4d, 0 0 26px #3286f533; background: linear-gradient(135deg, #4079c0, #123164); }
.flow-core>span { font-size: 32px; letter-spacing: -2px; font-weight: 500; line-height: 1.3; color: #eaf5ff; }
.flow-core small { font-size: 8px; color: #b1d3ff; }
.flow-line { height: 1px; flex: 1; background: #6b9ddd6b; position: relative; }
.flow-line>span { position: absolute; width: 4px; height: 4px; background: #95c7ff; box-shadow: 0 0 6px #80bfff; border-radius: 50%; top: -1px; left: 40%; }
.ai-demo-message { display: flex; align-items: flex-start; gap: 11px; padding: 15px; border-radius: 5px; border: 1px solid #71a3f52e; background: #ffffff05; }
.ai-spark { color: #91bcff; font-size: 24px; line-height: 1.3; }
.ai-demo-message strong { font-size: 10px; font-weight: 500; }
.ai-demo-message p { color: #90aad0; font-size: 8px; line-height: 1.8; margin: 6px 0 10px; }
.ai-demo-message div>span { font-size: 7px; color: #9dbfe9; border: 1px solid #6b9cdd2b; border-radius: 2px; padding: 2px 5px; margin-right: 5px; }
.ai-demo-bottom { display: flex; justify-content: space-between; align-items: center; font-size: 7px; color: #7695be; margin-top: 16px; }

/* Delivery and company */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 38px; }
.process-number { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid #dbe5f3; padding-bottom: 19px; margin-bottom: 23px; font: 37px/1.2 var(--font); color: #bbcbe4; font-weight: 300; }
.process-number>span { font-size: 21px; color: #9bb6dc; }
.process-number>.icon { color: #79a2df; height: 20px; width: 20px; }
.process-step h3 { font-size: 19px; font-weight: 600; margin-bottom: 12px; }
.process-step p { font-size: 14px; color: var(--muted); line-height: 1.9; margin-bottom: 18px; }
.process-result { font-size: 12px; color: #667d9e; }
.about-section { background: #f7f9fc; border-top: 1px solid #edf1f7; }
.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.about-copy h2 { font-size: 38px; margin-bottom: 24px; }
.about-copy>p:not(.section-eyebrow) { font-size: 14px; color: var(--muted); line-height: 1.95; margin-bottom: 17px; }
.about-copy>.about-lead { color: #324664 !important; font-size: 16px !important; font-weight: 500; }
.about-copy .link-arrow { margin-top: 12px; font-size: 13px; }
.architecture-visual { background: #0a1932; min-height: 415px; border-radius: 8px; position: relative; overflow: hidden; padding: 32px; color: #c7dcfc; isolation: isolate; }
.architecture-grid { position: absolute; inset: 0; z-index: -1; background-image: linear-gradient(#6396d40a 1px, transparent 1px), linear-gradient(90deg, #6396d40a 1px, transparent 1px); background-size: 30px 30px; mask-image: linear-gradient(0deg, #000, transparent); }
.architecture-light { position: absolute; top: 90px; left: 5%; right: 5%; height: 240px; z-index: -1; background: radial-gradient(ellipse, #3276de26, transparent 70%); }
.architecture-header { display: flex; align-items: center; gap: 8px; font-size: 10px; color: #91add6; }
.architecture-dot { width: 5px; height: 5px; border-radius: 50%; background: #76b0ff; box-shadow: 0 0 12px #76b0ff80; }
.architecture-stack { margin: 28px auto 23px; width: 90%; }
.architecture-layer { display: grid; grid-template-columns: 21px 29px 1fr; column-gap: 12px; align-items: center; padding: 16px 20px; border: 1px solid #5a8bcc4d; border-radius: 4px; background: linear-gradient(110deg, #1c3d6d, #112745); box-shadow: 0 5px 0 #07152b; margin-top: 13px; }
.architecture-layer>span { font: 9px var(--mono); color: #719bce; grid-row: span 2; }
.architecture-layer>.icon { width: 25px; height: 25px; color: #8cbcff; grid-row: span 2; }
.architecture-layer strong { font-size: 13px; font-weight: 500; }
.architecture-layer small { font-size: 9px; color: #8ca9d0; margin-top: 4px; }
.layer-service { margin-left: 13px; margin-right: -13px; background: linear-gradient(110deg, #27528f, #15315a); border-color: #7aa9ee66; }
.layer-data { margin-left: 26px; margin-right: -26px; }
.architecture-caption { text-align: center; color: #6885ad; font-size: 9px; letter-spacing: 1px; }

/* Contact — real channels, no form or simulated chat */
.contact-section { position: relative; padding: 76px 0 70px; background: #0b1d3b; color: #fff; overflow: hidden; }
.contact-section:before { content: ""; position: absolute; width: 800px; height: 800px; border: 1px solid #4788e312; border-radius: 50%; right: -120px; top: -500px; box-shadow: 0 0 0 55px #4788e306, 0 0 0 110px #4788e304; pointer-events: none; }
.contact-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: 36px; position: relative; }
.contact-heading .section-eyebrow { color: #7caff9; }
.contact-heading h2 { font-size: 34px; font-weight: 500; letter-spacing: .4px; }
.contact-heading>p { color: #91a8c9; font-size: 14px; line-height: 1.9; margin-bottom: 4px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr 1.3fr; gap: 20px; position: relative; }
.contact-method { padding: 23px 24px; border: 1px solid #aacbff26; border-radius: 5px; background: #ffffff03; min-width: 0; }
.contact-method-label { display: flex; align-items: center; gap: 10px; color: #97b0d3; font-size: 12px; margin-bottom: 17px; }
.contact-method-label .icon { height: 19px; width: 19px; color: #7da7e5; }
.contact-method-details { display: flex; align-items: center; justify-content: space-between; gap: 10px; min-width: 0; }
.contact-value { font: 24px/1.5 var(--font); letter-spacing: .3px; overflow-wrap: anywhere; min-width: 0; }
.contact-email { font-size: 17px; letter-spacing: -.2px; text-decoration: underline; text-underline-offset: 5px; text-decoration-color: #8cb5f54a; }
.contact-email:hover { color: #9fc8ff; text-decoration-color: #9fc8ff; }
.copy-contact { display: flex; align-items: center; justify-content: center; min-height: 34px; min-width: 34px; padding: 7px; background: transparent; border: 1px solid #bdd4f633; border-radius: 3px; color: #abc6ed; flex-shrink: 0; transition: border-color .2s, background .2s; }
.copy-contact>.icon { height: 15px; width: 15px; }
.copy-contact>span { display: none; }
.copy-contact:hover { background: #6a9fe516; border-color: #81a9e5; }
.site-footer { background: #07142b; color: #8da2c2; padding: 36px 0 24px; }
.footer-top { display: flex; align-items: center; gap: 30px; margin-bottom: 30px; }
.site-footer .brand-mark { height: 31px; width: 31px; stroke: #74a2e6; }
.site-footer .brand-name { font-size: 19px; color: #d1e1f8; }
.site-footer .brand-name>span { font-size: 7px; color: #718cac; }
.footer-top>p { font-size: 12px; margin: 0; color: #7d96b9; }
.back-to-top { margin-left: auto; display: flex; align-items: center; gap: 14px; font-size: 11px; }
.back-to-top>span { height: 30px; width: 30px; display: grid; place-items: center; border: 1px solid #92b6e52e; border-radius: 3px; font-size: 17px; }
.back-to-top:hover { color: #bfd8ff; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid #ffffff0e; font-size: 10px; color: #8297b5; }
.footer-legal { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-legal a:hover { color: #bfd8ff; }
.toast { position: fixed; bottom: 26px; left: 50%; z-index: 90; transform: translate(-50%, 15px); background: #13294a; border: 1px solid #7aabeb40; color: #fff; padding: 13px 22px; border-radius: 5px; font-size: 13px; opacity: 0; pointer-events: none; box-shadow: 0 8px 25px #06162b26; max-width: calc(100% - 36px); text-align: center; transition: opacity .2s, transform .2s; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }
.noscript-note { background: #e8f0ff; color: #315789; text-align: center; padding: 10px 20px; font-size: 12px; }

/* Progressive enhancement: content remains visible without JavaScript. */
.can-reveal .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.can-reveal .reveal.is-visible { opacity: 1; transform: none; }
.can-reveal .service-card.is-visible:hover { transform: translateY(-6px); }
@keyframes hero-breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.025); } }
@keyframes panel-in { from { opacity: .4; transform: translateY(5px); } to { opacity: 1; transform: none; } }

@media (min-width: 1600px) {
  .hero-stage { height: 600px; }
  .hero h1 { font-size: 70px; }
}
@media (max-width: 1150px) {
  .container { width: calc(100% - 72px); }
  .main-nav { gap: 27px; }
  .nav-contact { margin-left: 6px; padding-inline: 17px; gap: 18px; }
  .hero-stage { height: 530px; }
  .hero-copy { width: 61%; }
  .hero h1 { font-size: 54px; }
  .hero-description { font-size: 13px; }
  .shortcut-grid>a { gap: 15px; padding-inline: 24px; }
  .shortcut-grid strong { font-size: 16px; }
  .shortcut-grid div>span { font-size: 11px; }
  .service-grid { gap: 20px; }
  .service-art { height: 170px; }
  .service-content { padding: 24px; }
  .service-card h3 { font-size: 23px; }
  .service-card p { font-size: 13px; }
  .service-features { font-size: 12px; }
  .scenario-copy { padding: 35px 30px; }
  .scenario-copy h3 { font-size: 24px; }
  .scenario-copy>p { font-size: 13px; }
  .scenario-list { font-size: 12px; }
  .scenario-visual { min-height: 410px; }
  .demo-orb { width: 135px; height: 135px; right: 9px; top: 48px; }
  .demo-site-hero { padding-inline: 23px; }
  .demo-site-hero h3 { font-size: 24px; }
  .mini-floating-card { left: 6%; width: 130px; padding: 15px; }
  .mini-float-tag { right: 5%; }
  .ai-demo { padding: 19px; }
  .flow-node { width: 68px; }
  .flow-core { height: 76px; width: 76px; border-radius: 17px; }
  .process-grid { gap: 29px; }
  .about-layout { gap: 60px; }
  .about-copy h2 { font-size: 35px; }
  .architecture-visual { padding: 28px; }
  .architecture-stack { width: 94%; margin-left: 0; }
  .contact-heading h2 { font-size: 30px; }
  .contact-heading>p { font-size: 12px; }
  .contact-grid { gap: 15px; }
  .contact-method { padding: 20px; }
  .contact-value { font-size: 22px; }
  .contact-email { font-size: 15px; }
}
@media (max-width: 900px) {
  .container { width: calc(100% - 48px); }
  .section { padding-block: 76px; }
  h2 { font-size: 32px; }
  .section-description { font-size: 13px; }
  .main-nav { gap: 22px; font-size: 12px; }
  .brand-name { font-size: 20px; }
  .brand-mark { width: 33px; height: 33px; }
  .brand-name>span { font-size: 7px; letter-spacing: 2px; }
  .hero-stage { height: 500px; }
  .hero h1 { font-size: 46px; }
  .hero-copy { width: 65%; }
  .hero-eyebrow { font-size: 11px; letter-spacing: 1px; }
  .hero-image { right: -105px; width: 1080px; height: 570px; top: -35px; }
  .hero-art:after { background: linear-gradient(90deg, #030b19 0%, #030b19ed 28%, #030b19c7 46%, #030b1966 62%, transparent 80%); }
  .hero-description { font-size: 12px; }
  .hero-actions { gap: 12px; }
  .hero-actions .button { padding-inline: 17px; font-size: 12px; gap: 22px; min-height: 48px; }
  .shortcut-grid>a { padding: 23px 19px; gap: 12px; min-height: 99px; }
  .shortcut-icon { width: 29px; height: 29px; }
  .shortcut-grid strong { font-size: 15px; }
  .shortcut-grid div>span { font-size: 10px; }
  .shortcut-grid>a>.icon { width: 16px; height: 16px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .service-card-ai { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; }
  .service-card-ai .service-art { height: 100%; }
  .service-art { height: 147px; }
  .service-content { padding: 24px; }
  .service-category { font-size: 11px; }
  .service-card h3 { font-size: 24px; }
  .service-card p { font-size: 14px; }
  .service-features { font-size: 13px; gap: 7px; }
  .service-content .link-arrow { font-size: 13px; gap: 12px; }
  .service-content .link-arrow .icon { width: 16px; height: 16px; }
  .solution-panel { grid-template-columns: 1fr; }
  .solution-tabs { gap: 30px; }
  .solution-tab { font-size: 14px; gap: 8px; }
  .scenario-copy { padding: 34px; }
  .scenario-copy h3 { font-size: 26px; }
  .scenario-copy>p { font-size: 14px; }
  .scenario-list { font-size: 13px; gap: 9px; }
  .scenario-label { font-size: 11px; }
  .scenario-visual { min-height: 390px; }
  .scenario-copy .link-arrow { font-size: 12px; }
  .browser-demo { width: min(80%, 520px); }
  .demo-site-nav { padding: 14px 18px; }
  .demo-site-nav strong { font-size: 8px; }
  .demo-site-nav>span { font-size: 5px; }
  .demo-site-hero { padding: 28px 20px; min-height: 190px; }
  .demo-site-hero h3 { font-size: 22px; }
  .demo-orb { width: 110px; height: 110px; right: 7px; top: 51px; }
  .mini-floating-card { width: 130px; padding: 16px; left: 17%; }
  .mini-floating-card strong { font-size: 9px; }
  .mini-floating-card small { font-size: 6px; }
  .demo-phone { transform: translateX(-32%) rotate(5deg) scale(.9); }
  .mini-float-tag { font-size: 8px; padding: 10px 12px; right: 4%; bottom: 42px; }
  .mini-float-tag .icon { height: 17px; width: 17px; }
  .ai-demo { width: min(80%, 480px); padding: 23px; }
  .flow-node { width: 57px; padding: 10px 4px; }
  .flow-node strong { font-size: 8px; }
  .flow-node small { font-size: 6px; }
  .flow-core { width: 68px; height: 76px; }
  .flow-core>span { font-size: 28px; }
  .ai-demo-message { padding: 12px 10px; gap: 8px; }
  .ai-demo-message p { font-size: 7px; }
  .ai-demo-message div>span { font-size: 6px; padding: 2px 3px; margin-right: 3px; }
  .ai-demo-top strong { font-size: 10px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-step h3 { font-size: 17px; }
  .process-step p { font-size: 14px; }
  .process-result { font-size: 10px; }
  .about-layout { gap: 40px; }
  .about-copy h2 { font-size: 30px; }
  .about-copy>p:not(.section-eyebrow) { font-size: 13px; }
  .about-copy>.about-lead { font-size: 14px !important; }
  .about-copy .link-arrow { font-size: 12px; }
  .architecture-visual { padding: 23px; min-height: 393px; }
  .architecture-header { font-size: 8px; }
  .architecture-stack { width: 91%; }
  .architecture-layer { padding: 16px 12px; column-gap: 8px; grid-template-columns: 16px 26px 1fr; }
  .architecture-layer strong { font-size: 12px; }
  .architecture-layer small { font-size: 8px; }
  .contact-heading { align-items: flex-start; flex-direction: column; gap: 16px; }
  .contact-heading h2 { font-size: 31px; }
  .contact-heading>p { font-size: 13px; }
  .contact-heading>p br { display: none; }
  .contact-grid { grid-template-columns: 1fr 1fr 1.35fr; gap: 12px; }
  .contact-method { padding: 18px 15px; }
  .contact-method-label { font-size: 11px; }
  .contact-value { font-size: 19px; }
  .contact-email { font-size: 13px; }
  .copy-contact { min-width: 30px; min-height: 32px; padding: 6px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 93px; }
  .site-header { height: 74px; }
  .container { width: calc(100% - 40px); }
  .brand { gap: 10px; }
  .brand-name { font-size: 21px; }
  .brand-mark { width: 34px; height: 34px; }
  .menu-toggle { display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 6px; height: 39px; width: 39px; border: 1px solid #e3e9f2; background: transparent; border-radius: 3px; }
  .menu-toggle>span { height: 1px; width: 18px; background: #1a3a6c; transition: transform .2s; }
  .menu-toggle[aria-expanded="true"]>span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"]>span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .main-nav { display: none; position: fixed; inset: 74px 0 0; height: calc(100dvh - 74px); flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0; background: #fff; padding: 20px 26px 40px; overflow-y: auto; }
  .main-nav.is-open { display: flex; }
  .nav-link { display: block; height: auto; padding: 19px 0; border-bottom: 1px solid #e8edf5; font-size: 17px; }
  .nav-link:after { display: none; }
  .nav-contact { margin: 24px 0 0; padding: 16px 20px; justify-content: space-between; font-size: 15px; }
  .hero-stage { height: 680px; align-items: flex-start; }
  .hero-copy { width: 100%; padding-top: 49px; padding-bottom: 0; }
  .hero-eyebrow { font-size: 11px; margin-bottom: 20px; letter-spacing: 1px; }
  .hero h1 { font-size: clamp(37px, 8.3vw, 53px); line-height: 1.4; letter-spacing: 0; margin-bottom: 20px; }
  .hero-description { font-size: 12px; line-height: 1.95; margin-bottom: 24px; max-width: 490px; }
  .hero-actions { gap: 12px; }
  .hero-actions .button { padding: 13px 18px; min-height: 47px; font-size: 12px; gap: 23px; }
  .hero-art:after { background: linear-gradient(180deg, #030b19 0%, #030b19f5 31%, #030b1920 63%, #030b1900 80%); }
  .hero-image { top: auto; bottom: -60px; left: 50%; right: auto; width: 810px; height: 456px; object-fit: contain; transform: translateX(-70%); animation: none; }
  .shortcut-grid>a { flex-direction: column; align-items: flex-start; justify-content: center; padding: 19px 14px; gap: 8px; min-height: 122px; }
  .shortcut-grid>a:first-child { padding-left: 0; }
  .shortcut-grid>a:last-child { padding-right: 0; }
  .shortcut-icon { height: 28px; width: 28px; }
  .shortcut-grid strong { font-size: 14px; margin-bottom: 2px; }
  .shortcut-grid div>span { font-size: 9px; line-height: 1.7; max-width: 95px; }
  .shortcut-grid>a>.icon { display: none; }
  .section { padding-block: 62px; }
  .section-heading { display: block; margin-bottom: 31px; }
  .section-eyebrow { font-size: 12px; margin-bottom: 13px; }
  h2 { font-size: 28px; line-height: 1.5; letter-spacing: -.6px; }
  .section-description { font-size: 13px; margin-top: 17px; }
  .section-description br { display: none; }
  .service-grid { grid-template-columns: 1fr; gap: 22px; }
  .service-card-ai { display: block; grid-column: auto; }
  .service-card-ai .service-art { height: 195px; }
  .service-art { height: 195px; }
  .service-content { padding: 25px 26px 28px; }
  .service-category { font-size: 12px; }
  .service-card h3 { font-size: 25px; }
  .service-card p { font-size: 14px; }
  .service-features { font-size: 13px; gap: 8px; }
  .service-content .link-arrow { font-size: 13px; gap: 16px; }
  .service-content .link-arrow .icon { width: 19px; height: 19px; }
  .centered { display: flex; }
  .centered .section-description { margin-top: 14px; }
  .solution-tabs { gap: 0; justify-content: space-between; margin-bottom: 25px; }
  .solution-tab { padding: 13px 6px 17px; font-size: 12px; gap: 6px; }
  .solution-tab .icon { width: 19px; height: 19px; }
  .solution-panel { grid-template-columns: 1fr; }
  .scenario-visual { min-height: 360px; }
  .scenario-copy { padding: 30px 26px 34px; }
  .scenario-label { font-size: 11px; margin-bottom: 11px; }
  .scenario-copy h3 { font-size: 25px; margin-bottom: 16px; }
  .scenario-copy>p { font-size: 13px; }
  .scenario-list { font-size: 12px; gap: 10px; margin-bottom: 25px; }
  .scenario-copy .link-arrow { font-size: 13px; }
  .browser-demo { width: 88%; }
  .demo-site-nav { padding: 15px 19px; }
  .demo-site-nav strong { font-size: 9px; }
  .demo-site-nav>span { font-size: 5px; }
  .demo-site-hero { padding: 26px 22px; }
  .demo-site-hero h3 { font-size: 25px; }
  .demo-orb { height: 123px; width: 123px; top: 43px; right: 6px; }
  .demo-site-bottom { padding-block: 15px; }
  .illustration-note { font-size: 9px; bottom: 13px; }
  .mini-demo { height: 330px; }
  .demo-phone { transform: translateX(-31%) rotate(5deg) scale(.85); top: -1px; }
  .mini-floating-card { top: 56px; left: 4%; width: 126px; padding: 15px; }
  .mini-floating-card strong { font-size: 10px; }
  .mini-floating-card small { font-size: 7px; }
  .mini-float-tag { bottom: 27px; right: 5%; font-size: 9px; padding: 12px 14px; }
  .ai-demo { width: 89%; padding: 18px; }
  .ai-demo-top strong { font-size: 11px; }
  .flow-node { width: 63px; padding: 12px 5px; }
  .flow-core { width: 73px; height: 80px; }
  .flow-node strong { font-size: 9px; }
  .flow-node small { font-size: 6px; }
  .ai-demo-message { padding: 13px; }
  .ai-demo-message p { font-size: 8px; }
  .ai-demo-message div>span { font-size: 7px; padding: 2px 4px; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 30px 23px; }
  .process-number { font-size: 34px; padding-bottom: 16px; margin-bottom: 18px; }
  .process-step h3 { font-size: 18px; }
  .process-step p { font-size: 13px; line-height: 1.85; }
  .process-result { font-size: 10px; }
  .about-layout { grid-template-columns: 1fr; gap: 32px; }
  .about-copy h2 { font-size: 31px; margin-bottom: 21px; }
  .about-copy>p:not(.section-eyebrow) { font-size: 13px; }
  .about-copy>.about-lead { font-size: 14px !important; }
  .about-copy .link-arrow { font-size: 13px; }
  .architecture-visual { min-height: 382px; padding: 26px; }
  .architecture-header { font-size: 9px; }
  .architecture-stack { width: 90%; margin-top: 25px; margin-bottom: 20px; }
  .architecture-layer { padding: 15px 14px; grid-template-columns: 18px 27px 1fr; column-gap: 10px; }
  .architecture-layer strong { font-size: 13px; }
  .architecture-layer small { font-size: 9px; }
  .architecture-caption { font-size: 8px; }
  .contact-section { padding-block: 59px; }
  .contact-heading { margin-bottom: 29px; gap: 15px; }
  .contact-heading h2 { font-size: 28px; }
  .contact-heading>p { font-size: 13px; }
  .contact-grid { grid-template-columns: 1fr; gap: 14px; }
  .contact-method { padding: 20px 23px; }
  .contact-method-label { font-size: 12px; margin-bottom: 10px; }
  .contact-value { font-size: 25px; }
  .contact-email { font-size: 17px; }
  .copy-contact { gap: 7px; min-height: 38px; padding: 8px 10px; font-size: 11px; }
  .copy-contact>span { display: inline; }
  .site-footer { padding: 31px 0 24px; }
  .footer-top { flex-wrap: wrap; gap: 21px; margin-bottom: 25px; }
  .footer-top>p { order: 3; width: 100%; font-size: 11px; }
  .site-footer .brand-name { font-size: 19px; }
  .back-to-top { gap: 9px; font-size: 10px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 13px; font-size: 9px; }
  .footer-legal { font-size: 10px; }
}
@media (min-width: 500px) and (max-width: 760px) {
  .hero-stage { height: 740px; }
}
@media (max-width: 370px) {
  .container { width: calc(100% - 32px); }
  .hero-stage { height: 658px; }
  .hero h1 { font-size: 35px; }
  .hero-description { font-size: 11px; }
  .hero-actions .button { font-size: 11px; padding-inline: 15px; gap: 19px; }
  .hero-image { width: 760px; height: 428px; bottom: -60px; }
  .shortcut-grid>a { padding-inline: 10px; }
  .shortcut-grid strong { font-size: 12px; }
  .shortcut-grid div>span { font-size: 8px; }
  .service-content { padding-inline: 23px; }
  .solution-tab { font-size: 11px; gap: 4px; padding-inline: 4px; }
  .solution-tab .icon { width: 17px; height: 17px; }
  .scenario-visual { min-height: 330px; }
  .browser-demo { width: 92%; }
  .demo-orb { width: 104px; height: 104px; top: 53px; right: 0; }
  .demo-site-hero h3 { font-size: 23px; }
  .scenario-copy { padding-inline: 23px; }
  .scenario-copy h3 { font-size: 23px; }
  .demo-phone { transform: translateX(-29%) rotate(5deg) scale(.79); top: -6px; }
  .mini-floating-card { width: 108px; padding: 12px; left: 3%; }
  .mini-floating-card strong { font-size: 9px; }
  .mini-floating-card small { font-size: 6px; }
  .mini-float-tag { font-size: 8px; padding: 10px; right: 3%; bottom: 35px; }
  .ai-demo { width: 93%; padding: 14px; }
  .flow-node { width: 57px; }
  .flow-core { width: 66px; height: 76px; }
  .ai-demo-message { gap: 8px; padding: 12px 10px; }
  .ai-demo-message div>span { margin-right: 3px; padding-inline: 3px; font-size: 6px; }
  .contact-method { padding-inline: 19px; }
  .contact-email { font-size: 15px; }
  .copy-contact { padding-inline: 8px; gap: 5px; }
  .architecture-visual { padding: 23px; }
  .architecture-layer { column-gap: 7px; padding-inline: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *:before, *:after { animation: none !important; transition: none !important; }
  .can-reveal .reveal { opacity: 1; transform: none; }
}