* { box-sizing: border-box; letter-spacing: 0px; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--cg-header-h) + 20px); }
body { margin: 0; overflow-x: clip; background: var(--cg-bg); color: var(--cg-ink); font: 400 16px/1.75 var(--cg-font); -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
button, input, textarea, select { font: inherit; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--cg-accent); outline-offset: 4px; }
[hidden] { display: none !important; }
svg { max-width: 100%; }
p { margin: 0 0 var(--cg-s3); }
h1, h2, h3 { margin: 0 0 var(--cg-s3); font-weight: 500; line-height: 1.14; }
h2 { font-size: 44px; }
h3 { font-size: 28px; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; transform: translateY(-160%); padding: 10px 14px; background: var(--cg-accent); color: var(--cg-on-dark); border-radius: var(--cg-radius); }
.skip-link:focus { transform: none; }
.container { width: min(calc(100% - 64px), var(--cg-content)); margin-inline: auto; }
.section { padding-block: var(--cg-s16); border-top: 1px solid var(--cg-line); }
.section-dark { background: var(--cg-dark); color: var(--cg-on-dark); border-color: var(--cg-dark-line); }
.section-soft { background: var(--cg-accent-soft); }
.eyebrow { display: flex; align-items: center; gap: var(--cg-s2); margin: 0 0 var(--cg-s3); color: var(--cg-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; }
.eyebrow::before { width: 24px; height: 1px; background: currentColor; content: ""; }
.section-dark .eyebrow, .section-dark .muted { color: var(--cg-dark-muted); }
.lead { max-width: 680px; font-size: 19px; line-height: 1.8; }
.muted { color: var(--cg-muted); }
.section-heading { display: grid; grid-template-columns: 7fr 5fr; gap: var(--cg-s4); align-items: end; margin-bottom: var(--cg-s8); }
.section-heading > p { max-width: 500px; margin: 0 0 var(--cg-s1) auto; color: var(--cg-muted); }
.section-dark .section-heading > p { color: var(--cg-dark-muted); }
.refinement-title-line { display: inline-block; }
#products-title, #comparison-title, #scenarios-title, #faq-title, #cta-title { text-wrap: balance; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; }
.btn { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 20px; padding: 11px 22px; border: 1px solid transparent; border-radius: var(--cg-radius); font-weight: 500; transition: background 160ms, color 160ms; }
.btn-primary { background: var(--cg-accent); color: var(--cg-on-dark); }
.btn-primary:hover { background: var(--cg-accent-hover); }
.btn-text { padding-inline: 0; border: 0; border-radius: 0; }
.arrow { font-size: 22px; font-weight: 400; line-height: 1; }
.text-link { display: inline-flex; min-height: 44px; align-items: center; gap: 20px; border-bottom: 1px solid currentColor; font-size: 14px; font-weight: 500; }

.site-header { position: sticky; z-index: 50; top: 0; height: var(--cg-header-h); border-bottom: 1px solid var(--cg-line); background: color-mix(in srgb, var(--cg-bg) 96%, transparent); backdrop-filter: blur(10px); }
.header-inner { display: flex; height: 100%; align-items: center; gap: 24px; }
.brand { display: inline-flex; flex: none; align-items: center; gap: 12px; font-size: 18px; font-weight: 600; white-space: nowrap; }
.brand-mark { width: 30px; height: 30px; }
.desktop-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; font-size: 14px; }
.desktop-nav > a, .product-nav > a { display: inline-flex; min-height: 48px; align-items: center; }
.product-nav { position: relative; display: flex; align-items: center; }
.nav-toggle, .menu-toggle { min-width: 44px; min-height: 44px; border: 0; background: transparent; }
.nav-toggle svg, .menu-toggle svg { display: block; margin: auto; }
.submenu { position: absolute; top: 52px; left: auto; right: 0; width: min(540px, calc(100vw - 40px)); padding: 8px; border: 1px solid var(--cg-line); border-radius: 8px; background: var(--cg-surface); box-shadow: 0 12px 28px rgb(78 24 32 / 10%); }
.submenu a { display: block; padding: 14px 16px; border-radius: 6px; }
.submenu a:hover, .submenu a:focus-visible { background: var(--cg-accent-soft); }
.product-directory > a:not(.submenu-all) { border-bottom: 1px solid var(--cg-line); }
.product-directory > a:last-of-type { border-bottom: 0; }
.product-directory strong, .product-directory span, .product-directory small { display: block; }
.product-directory strong { color: var(--cg-ink); font-size: 20px; font-weight: 500; line-height: 1.3; }
.product-directory span { margin-top: 3px; color: var(--cg-accent); font-size: 14px; line-height: 1.5; }
.product-directory small { margin-top: 4px; color: var(--cg-muted); font-size: 14px; line-height: 1.55; }
.product-directory .submenu-all { color: var(--cg-accent); font-size: 14px; font-weight: 500; }
.product-directory a[aria-current="true"] { background: var(--cg-accent-soft); }
.header-cta { flex: none; margin-left: 8px; }
.menu-toggle, .mobile-nav { display: none; }

.hero { min-height: min(680px, calc(100svh - var(--cg-header-h) - 260px)); padding: var(--cg-s8) 0 var(--cg-s4); }
.hero-grid { display: grid; grid-template-columns: 7.2fr 4.8fr; gap: 32px; align-items: stretch; }
.hero-copy { display: flex; min-width: 0; flex-direction: column; justify-content: center; }
.hero-copy h1 { max-width: 760px; margin-bottom: var(--cg-s4); font-size: 72px; }
.hero-copy .lead { max-width: 610px; margin-bottom: var(--cg-s4); }
.hero-title-line { display: block; }
.hero-meta { display: flex; min-height: 53px; justify-content: space-between; gap: var(--cg-s3); margin-top: auto; padding-top: 8px; border-top: 1px solid var(--cg-line); color: var(--cg-muted); font-size: 12px; }
.hero-flow { min-width: 0; align-self: stretch; display: flex; flex-direction: column; justify-content: center; }
.flow-top { display: flex; justify-content: space-between; gap: var(--cg-s2); padding-top: var(--cg-s2); border-top: 1px solid var(--cg-ink); font-size: 12px; }
.flow-status { min-height: 28px; margin-top: 6px; color: var(--cg-accent); font-size: 14px; }
.flow-stage { position: relative; min-height: 340px; }
.state-svg { display: block; width: 100%; height: 340px; overflow: visible; }
.state-svg text { font-family: var(--cg-font); }
.js .flow-fallback { display: none; }
.no-js .flow-runtime { display: none; }
.flow-node.is-selected .node-shape { filter: drop-shadow(0 0 3px rgb(143 29 43 / 26%)); }
.flow-path { fill: none; stroke: var(--cg-accent); stroke-width: 1.1; stroke-linecap: round; opacity: 0; }
.flow-path.is-active { opacity: .46; stroke-dasharray: 10 12; }
.flow-controls { display: flex; min-height: 53px; align-items: center; justify-content: space-between; gap: 8px; margin-top: auto; padding-top: 8px; border-top: 1px solid var(--cg-line); }
.flow-controls button { min-height: 44px; padding: 8px 5px; border: 0; background: transparent; color: var(--cg-muted); font-size: 12px; }
.flow-controls button[aria-pressed="true"] { color: var(--cg-accent); box-shadow: inset 0 -2px var(--cg-accent); }
.flow-pause { margin-left: auto; }
.state-legend { display: flex; flex-wrap: wrap; gap: var(--cg-s1) var(--cg-s2); margin: 0 0 var(--cg-s2); }
.legend-item { display: inline-flex; align-items: center; gap: 7px; color: var(--cg-muted); font-size: 12px; }
.legend-icon { width: 10px; height: 10px; border: 1.5px solid var(--cg-accent); border-radius: 50%; }
.legend-icon.fill { background: var(--cg-accent); }
.legend-icon.ring { box-shadow: 0 0 0 2px var(--cg-bg), 0 0 0 3px var(--cg-accent); }
.legend-icon.square { border-radius: 0; background: var(--cg-accent); }
.legend-icon.stop { position: relative; border-color: var(--cg-stop); border-radius: 0; }
.legend-icon.stop::after { position: absolute; top: 3px; right: 0; left: 0; height: 1px; background: var(--cg-stop); content: ""; }

.problem-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 64px; margin-bottom: 48px; }
.problem { display: flex; gap: 22px; padding: 24px 0; border-top: 1px solid var(--cg-line); }
.problem span { color: var(--cg-muted); font-size: 12px; }
.problem p { margin: 0; font-size: 20px; }
.situation-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.situation-choice { min-height: 112px; display: flex; justify-content: space-between; align-items: center; gap: var(--cg-s3); padding: var(--cg-s3) 0; border: 0; border-top: 3px solid var(--cg-line); background: transparent; text-align: left; }
.situation-choice[aria-pressed="true"] { border-top-color: var(--cg-accent); color: var(--cg-accent); }
.situation-choice strong { display: block; margin-bottom: 6px; font-size: 22px; font-weight: 500; }
.situation-choice small { color: var(--cg-muted); }
.mini-nodes { display: grid; flex: none; grid-template-columns: repeat(5, 7px); gap: 8px; }
.mini-nodes i { width: 7px; height: 7px; border-radius: 50%; background: var(--cg-node-muted); }
.situation-choice[aria-pressed="true"] .mini-nodes i:nth-child(3n) { background: var(--cg-accent); transform: translateY(-3px); }
.recommendation { display: flex; justify-content: space-between; gap: var(--cg-s3); align-items: center; margin-top: var(--cg-s3); padding: var(--cg-s2) var(--cg-s3); border-left: 2px solid var(--cg-accent); background: var(--cg-accent-soft); }
.recommendation p { margin: 0; }

.product-map { display: grid; grid-template-columns: 5fr 7fr; gap: var(--cg-s8); }
.path-panel { display: flex; flex-direction: column; border-top: 1px solid var(--cg-ink); }
.path-group { padding: 20px 0 8px; color: var(--cg-muted); font-size: 13px; }
.path-option { display: block; width: 100%; min-height: 92px; padding: 16px 10px 16px 0; border: 0; border-bottom: 1px solid var(--cg-line); background: transparent; color: var(--cg-muted); text-align: left; }
.path-option[data-level="1"] { padding-left: 24px; }
.path-option[data-level="2"] { padding-left: 24px; }
.path-option[aria-pressed="true"] { color: var(--cg-ink); box-shadow: inset 3px 0 var(--cg-accent); }
.path-option strong, .path-option span, .path-option small { display: block; }
.path-option strong { color: var(--cg-ink); font-size: 22px; font-weight: 500; line-height: 1.3; }
.path-option span { margin-top: 3px; color: var(--cg-accent); font-size: 14px; line-height: 1.5; }
.path-option small { margin-top: 3px; color: var(--cg-muted); font-size: 14px; font-weight: 400; line-height: 1.5; }
.product-result { min-height: 424px; display: flex; flex-direction: column; padding: var(--cg-s3) 0 0; border-top: 1px solid var(--cg-ink); }
.path-panel > .text-link { align-self: flex-start; margin-top: auto; }
.product-summary { margin-bottom: var(--cg-s2); }
.product-summary p { margin: 12px 0 0; color: var(--cg-muted); font-size: 16px; line-height: 1.7; }
.product-flow { display: block; width: 100%; height: 210px; color: var(--cg-node-muted); overflow: visible; }
.product-scene { opacity: 0; pointer-events: none; transition: opacity 320ms ease; }
.product-scene.is-active { opacity: 1; }
.product-label, .product-note { fill: var(--cg-muted); font: 400 13px/1 var(--cg-font); }
.product-note { font-size: 12px; }
.product-guide, .field-boundary, .time-window, .cluster-boundary { fill: none; stroke: var(--cg-accent-light); stroke-width: 1.2; }
.product-guide { stroke-dasharray: 5 7; }
.product-active { color: var(--cg-accent); }
.product-exit { color: var(--cg-stop); }
.condition-set rect { fill: none; stroke: var(--cg-accent-light); stroke-width: 1; }
.condition-set text { fill: var(--cg-muted); font: 400 12px/1 var(--cg-font); text-anchor: middle; }
.company-pool, .field-nodes, .history-pool { color: var(--cg-node-muted); }
.cluster-boundary { stroke: var(--cg-accent); stroke-dasharray: 4 7; opacity: .7; }
.product-copy { display: flex; align-items: flex-end; margin-top: auto; padding-top: var(--cg-s3); border-top: 1px solid var(--cg-line); }
.product-caption { min-height: 39px; margin: 0; padding: 8px 0 0; color: var(--cg-muted); font-size: 13px; line-height: 1.5; }
.product-number { color: var(--cg-muted); font-size: 12px; }
.product-result p { max-width: 470px; }
.product-noscript { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--cg-s3); margin-top: var(--cg-s6); padding-top: var(--cg-s3); border-top: 1px solid var(--cg-line); }

.method-section { padding-block: 96px; }
.method-heading { margin-bottom: var(--cg-s6); }
.method-title-line { display: block; }
.method-title-line-tail > span { display: inline; }
.method-figure-label { margin: 0 0 12px; color: var(--cg-dark-muted); font-size: 12px; }
.method-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.method-col { min-width: 0; padding-top: 18px; border-top: 1px solid var(--cg-dark-line); }
.method-col > small { color: var(--cg-dark-muted); font-size: 12px; }
.method-col h3 { margin: 12px 0 18px; font-size: 32px; }
.method-visual { min-width: 0; height: 196px; position: relative; margin-bottom: 18px; padding-top: 12px; border-top: 1px solid var(--cg-dark-line); }
.method-visual-title { display: block; color: var(--cg-dark-muted); font-size: 13px; }
.method-snapshot { display: block; width: 100%; height: 132px; color: var(--cg-accent-light); overflow: visible; }
.method-guide { fill: none; stroke: var(--cg-dark-line); stroke-width: 1; stroke-dasharray: 4 7; }
.method-selected { color: var(--cg-on-dark); }
.method-reached { color: var(--cg-on-dark); }
.method-legend { position: absolute; right: 0; bottom: 0; left: 0; display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--cg-dark-muted); font-size: 12px; }
.method-legend span { display: inline-flex; align-items: center; gap: 7px; }
.method-dot { position: relative; display: inline-block; width: 12px; height: 12px; flex: none; border: 1.5px solid var(--cg-accent-light); border-radius: 50%; }
.method-dot.fill, .method-dot.response { border-color: var(--cg-on-dark); background: var(--cg-on-dark); }
.method-dot.ring { border-color: var(--cg-on-dark); box-shadow: inset 0 0 0 3px var(--cg-dark); }
.method-dot.stop { border-color: var(--cg-on-dark); border-radius: 0; }
.method-dot.stop::after { position: absolute; top: 4px; right: 1px; left: 1px; height: 1px; background: var(--cg-on-dark); content: ""; }
.method-learn-visual { height: 196px; }
.method-state-grid { display: grid; height: 152px; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 18px; margin-top: 10px; }
.method-state-group { min-width: 0; padding-top: 6px; border-top: 1px solid var(--cg-dark-line); }
.method-state-group > span { display: block; color: var(--cg-dark-muted); font-size: 12px; }
.method-nodes { display: flex; min-height: 32px; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 12px; }
.method-mix-points { position: absolute; top: 43px; right: 12px; bottom: 4px; left: 12px; display: grid; grid-template-columns: repeat(4, 1fr); grid-template-rows: repeat(3, 1fr); pointer-events: none; }
.method-mix-points i { width: 12px; height: 12px; align-self: center; justify-self: center; visibility: hidden; }
.method-col ol { margin: 0; padding: 16px 0 0; border-top: 1px solid var(--cg-dark-line); list-style: none; }
.method-col li { display: grid; min-height: 32px; grid-template-columns: 28px 1fr; gap: 10px; align-items: start; font-size: 16px; line-height: 1.55; }
.method-col li span { color: var(--cg-dark-muted); font-size: 12px; }
.method-return { display: grid; grid-template-columns: 150px auto minmax(0, 1fr); gap: 16px 28px; align-items: center; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--cg-dark-line); }
.method-return strong { font-size: 18px; font-weight: 500; }
.method-return p, .method-return > span { margin: 0; color: var(--cg-dark-muted); font-size: 14px; line-height: 1.65; }
.method-return > span { grid-column: 3; }
.method-candidates { display: flex; gap: 10px; }

.comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
#comparison, #scenarios, #faq, #cta { padding-block: 96px; }
#comparison .section-heading, #scenarios .section-heading, #faq .section-heading, #cta .section-heading { margin-bottom: 48px; }
.compare-col { padding-top: 24px; border-top: 1px solid var(--cg-line); }
.compare-col.active { border-top: 3px solid var(--cg-accent); }
.compare-line { display: flex; align-items: center; gap: 10px; margin: 28px 0 34px; color: var(--cg-muted); font-size: 13px; }
.compare-line i { flex: 1; max-width: 48px; height: 1px; background: var(--cg-node-muted); }
.compare-col.active .compare-line i { background: var(--cg-accent); }
.compare-pair { display: grid; grid-template-columns: 112px 1fr; gap: 18px; padding: 15px 0; border-top: 1px solid var(--cg-line); }
.compare-pair span:first-child { color: var(--cg-muted); }

.channel-title-line { display: inline; }
.channel-layout { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 32px; align-items: start; }
.channel-tabs { display: flex; grid-column: span 4; flex-direction: column; }
.channel-tab { display: flex; min-height: 72px; justify-content: space-between; align-items: center; gap: 16px; padding: 16px 0; border: 0; border-bottom: 1px solid var(--cg-line); background: transparent; color: var(--cg-muted); font-size: 21px; text-align: left; }
.channel-tab[aria-selected="true"] { border-color: var(--cg-accent); color: var(--cg-ink); box-shadow: inset 0 -2px var(--cg-accent); }
.channel-tab-index { color: var(--cg-muted); font-size: 12px; }
.channel-tab-mobile { display: none; }
.channel-panels { display: grid; min-width: 0; grid-column: span 8; }
.channel-panel { min-width: 0; grid-area: 1 / 1; visibility: hidden; opacity: 0; transform: translateY(4px); pointer-events: none; transition: opacity 200ms ease, transform 200ms ease, visibility 0s linear 200ms; }
.channel-panel.is-active { visibility: visible; opacity: 1; transform: none; pointer-events: auto; transition-delay: 0s; }
.message-shell { min-width: 0; padding: 32px; border: 1px solid var(--cg-line); border-radius: var(--cg-radius); background: var(--cg-surface); }
.message-meta { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--cg-line); color: var(--cg-muted); font-size: 12px; }
.message-shell h3 { margin-top: 28px; font-size: 28px; }
.carrier-body { max-width: 620px; margin-bottom: 0; font-size: 16px; }
.carrier-action-line, .carrier-action-list { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 28px; padding-top: 14px; border-top: 1px solid var(--cg-line); color: var(--cg-accent); font-size: 14px; }
.carrier-action-list { justify-content: flex-start; flex-wrap: wrap; }
.carrier-action-list span { padding-right: 24px; border-right: 1px solid var(--cg-line); }
.carrier-action-list span:last-child { padding-right: 0; border-right: 0; }
.carrier-visual { display: block; width: 100%; height: 120px; margin: 24px 0; padding: 8px 0; background: var(--cg-accent-soft); color: var(--cg-node-muted); }
.carrier-visual-active { fill: var(--cg-accent); stroke: var(--cg-accent); }
.carrier-visual-rcs { height: 104px; }
.carrier-visual-rcs .carrier-visual-active { fill: none; }
.email-subject { margin: 26px 0 18px; padding-bottom: 14px; border-bottom: 1px solid var(--cg-line); font-size: 18px; font-weight: 500; }
.email-details { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 24px 0 0; padding-top: 16px; border-top: 1px solid var(--cg-line); }
.email-details div { min-width: 0; }
.email-details dt { margin-bottom: 4px; font-size: 14px; font-weight: 500; }
.email-details dd { margin: 0; color: var(--cg-muted); font-size: 16px; }
.channel-feedback { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--cg-line); }
.channel-feedback-title { margin-bottom: 14px; color: var(--cg-muted); font-size: 12px; }
.channel-signal-flow { display: grid; grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr) 28px minmax(0, 1fr); align-items: start; }
.signal-step { display: grid; min-width: 0; grid-template-columns: 12px minmax(0, 1fr); gap: 9px; align-items: start; font-size: 15px; line-height: 1.45; }
.signal-step i { width: 10px; height: 10px; margin-top: 5px; border: 1.5px solid var(--cg-accent); border-radius: 50%; }
.signal-step:nth-of-type(2) i { background: color-mix(in srgb, var(--cg-accent) 28%, transparent); }
.signal-step:nth-of-type(3) i { background: var(--cg-accent); }
.signal-step small { display: block; margin-top: 3px; color: var(--cg-muted); font-size: 12px; line-height: 1.45; }
.channel-signal-flow > b { height: 1px; margin: 10px 7px 0; background: var(--cg-line); }
.channel-signal-note { margin: 14px 0 0; color: var(--cg-muted); font-size: 14px; }
.channel-brief { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 28px; }
.channel-fact { min-width: 0; padding-top: 14px; border-top: 1px solid var(--cg-line); }
.channel-fact strong { display: block; margin-bottom: 8px; color: var(--cg-muted); font-size: 12px; font-weight: 500; }
.channel-fact p { margin: 0; font-size: 16px; line-height: 1.7; }
.channel-boundary-note { max-width: 850px; margin: 32px 0 0 auto; color: var(--cg-muted); font-size: 14px; }
.no-js .channel-tabs { display: none; }
.no-js .channel-panels { display: block; grid-column: 1 / -1; }
.no-js .channel-panel { visibility: visible; opacity: 1; transform: none; pointer-events: auto; }
.no-js .channel-panel + .channel-panel { margin-top: 64px; padding-top: 64px; border-top: 1px solid var(--cg-line); }

.scenario-row { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding: 42px 0; border-top: 1px solid var(--cg-line); }
.scenario-row:last-child { padding-bottom: 0; }
.scenario-links { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.scenario-links a { display: flex; min-height: 52px; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--cg-line); }

#service { padding-block: 64px; }
.service-title-line { display: inline; }
.service-heading { grid-template-columns: 8fr 4fr; margin-bottom: 32px; }
.service-heading > div { min-width: 0; }
.service-levels { border-top: 1px solid var(--cg-line); }
.service-level { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 32px; align-items: start; padding: 24px 0; border-bottom: 1px solid var(--cg-line); }
.service-level-head { min-width: 0; grid-column: span 3; }
.service-index { color: var(--cg-accent); font-size: 12px; }
.service-level h3 { margin: 16px 0 0; font-size: 24px; }
.service-definition { min-width: 0; grid-column: span 5; }
.service-definition p { margin: 0; font-size: 16px; line-height: 1.75; text-wrap: pretty; }
.service-definition p + p { margin-top: 12px; }
.service-goal { color: var(--cg-ink); font-weight: 500; }
.service-scope { color: var(--cg-muted); }
.service-term { white-space: nowrap; }
.service-flow { min-width: 0; grid-column: span 4; margin: 0; }
.service-flow-track { display: grid; grid-template-columns: minmax(54px, 1fr) 28px minmax(54px, 1fr) 28px minmax(64px, 1fr); align-items: start; }
.service-stage { min-width: 0; }
.service-stage > span { display: block; min-height: 34px; font-size: 13px; line-height: 1.35; }
.service-nodes { display: flex; min-height: 16px; align-items: center; gap: 6px; }
.service-nodes i { position: relative; width: 10px; height: 10px; flex: none; border: 1.5px solid var(--cg-node-muted); border-radius: 50%; }
.service-nodes i.reached { border-color: var(--cg-accent); box-shadow: inset 0 0 0 2px var(--cg-bg); background: color-mix(in srgb, var(--cg-accent) 34%, transparent); }
.service-nodes i.response { border-color: var(--cg-accent); background: var(--cg-accent); }
.service-nodes i.exit { border-color: var(--cg-muted); opacity: .55; }
.service-nodes i.exit::after { position: absolute; width: 14px; height: 1px; top: 3px; left: -3px; background: var(--cg-muted); content: ""; transform: rotate(-45deg); }
.service-path { position: relative; height: 1px; margin: 40px 7px 0; background: var(--cg-line); }
.service-path::after { position: absolute; width: 5px; height: 5px; top: -3px; right: 0; border-top: 1px solid var(--cg-muted); border-right: 1px solid var(--cg-muted); content: ""; transform: rotate(45deg); }
.service-path small { position: absolute; width: 38px; top: -21px; left: 50%; color: var(--cg-muted); font-size: 12px; font-weight: 400; text-align: center; transform: translateX(-50%); }
.service-flow figcaption { margin-top: 16px; color: var(--cg-muted); font-size: 13px; line-height: 1.6; }
.service-footer { display: flex; justify-content: space-between; align-items: center; gap: 32px; padding-top: 24px; }
.fee-note { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 24px; align-items: start; }
.fee-note strong { font-size: 14px; }
.fee-note p { margin: 0; font-size: 16px; }
.fee-note span { display: block; margin-top: 4px; color: var(--cg-muted); font-size: 14px; }
.service-cta { min-height: 44px; flex: none; }

.faq { max-width: 960px; }
.faq details { padding: 22px 0; border-top: 1px solid var(--cg-line); }
.faq summary { display: flex; min-height: 44px; justify-content: space-between; align-items: center; gap: 24px; cursor: pointer; font-size: 19px; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 25px; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { max-width: 800px; padding-top: 14px; color: var(--cg-muted); }

.cta-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 80px; }
.cta-grid h2 { max-width: 720px; }
.next-steps { border-top: 1px solid var(--cg-accent-light); }
.next-step { display: grid; grid-template-columns: 34px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--cg-line); }
.next-step span { color: var(--cg-accent); font-size: 12px; }
.next-step p { margin: 0; }
.site-footer { padding: 42px 0; }
.footer-row { display: flex; justify-content: space-between; gap: 28px; align-items: center; }
.footer-meta { color: var(--cg-muted); font-size: 12px; text-align: right; }

@media (max-width: 1100px) {
  .desktop-nav { gap: 14px; }
  .hero-grid { grid-template-columns: 1.08fr .92fr; gap: 24px; }
  .hero-copy h1 { font-size: 56px; }
  .mobile-break { display: block; }
  .flow-stage, .state-svg { height: 300px; min-height: 300px; }
  .section { padding-block: 96px; }
  .product-map, .scenario-row, .cta-grid { gap: 48px; }
  .channel-layout { gap: 24px; }
  .method-grid { gap: 24px; }
  .service-level { gap: 24px; }
}

@media (min-width: 701px) and (max-width: 900px) {
  .hero { padding: 32px 0 28px; }
  .hero-grid { gap: 24px; }
  .hero-meta { display: none; }
  .flow-stage, .state-svg { height: 200px; min-height: 200px; }
  .flow-controls { justify-content: flex-end; padding-top: 0; }
  .phase-control { display: none; }
  .flow-pause { min-width: 84px; }
  .flow-caption { margin-top: var(--cg-s1); }
  .state-legend { margin-top: var(--cg-s1); }
}

@media (max-width: 900px) {
  :root { --cg-header-h: 76px; }
  .container { width: min(calc(100% - 48px), var(--cg-content)); }
  .desktop-nav { display: none; }
  .menu-toggle { display: block; margin-left: auto; }
  .header-cta { margin-left: 0; padding-inline: 14px; font-size: 13px; }
  .mobile-nav { position: fixed; z-index: 49; top: var(--cg-header-h); right: 0; left: 0; display: block; max-height: calc(100svh - var(--cg-header-h)); overflow: auto; padding: 20px 24px 28px; border-bottom: 1px solid var(--cg-line); background: var(--cg-bg); box-shadow: 0 16px 28px rgb(78 24 32 / 10%); }
  .mobile-nav > a, .mobile-product-row > a, .mobile-products > a { display: flex; min-height: 48px; align-items: center; border-bottom: 1px solid var(--cg-line); }
  .mobile-product-row { display: flex; justify-content: space-between; align-items: center; }
  .mobile-product-row > a { flex: 1; }
  .mobile-products { padding-left: 22px; }
  .mobile-products.product-directory > a { display: block; min-height: 0; padding: 14px 0; }
  .mobile-products.product-directory strong { font-size: 20px; }
  .mobile-products.product-directory small { max-width: 560px; }
  .mobile-products.product-directory .submenu-all { min-height: 48px; padding: 14px 0; }
  .hero { min-height: 0; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-flow { max-width: 680px; }
  .section-heading, .cta-grid { grid-template-columns: 1fr; }
  .service-heading { grid-template-columns: 1fr; }
  .section-heading > p { margin-left: 0; }
  .product-map, .channel-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .method-grid { grid-template-columns: 1fr; gap: 32px; }
  .method-col h3 { font-size: 28px; }
  .method-visual, .method-learn-visual { height: 184px; }
  .method-snapshot { height: 124px; }
  .method-state-grid { height: 142px; gap: 12px 20px; }
  .method-return { grid-template-columns: 1fr auto; gap: 12px 20px; margin-top: 32px; }
  .method-return p, .method-return > span { grid-column: 1 / -1; }
}

@media (max-width: 430px) {
  .method-title-line-tail > span { display: block; }
}

/* With JavaScript disabled, the primary links remain directly reachable. */
.no-js .mobile-nav { display: block !important; position: static; max-height: none; overflow: visible; padding: 12px 0 20px; border-bottom: 1px solid var(--cg-line); box-shadow: none; }
.no-js .mobile-nav[hidden] { display: block !important; }
.no-js .mobile-nav .mobile-products[hidden] { display: block !important; }
.no-js .site-header { position: static; height: auto; backdrop-filter: none; }
.no-js .header-inner { height: var(--cg-header-h); }
.no-js .menu-toggle, .no-js .mobile-product-toggle, .no-js .flow-controls { display: none !important; }
.no-js .mobile-nav { padding-inline: max(20px, calc((100% - var(--cg-content)) / 2)); }
@media (min-width: 901px) {
  .no-js .mobile-nav,
  .no-js .mobile-nav[hidden] { display: none !important; }
}

@media (max-width: 700px) {
  .container { width: calc(100% - 40px); }
  .header-inner { gap: var(--cg-s1); }
  .brand { gap: 8px; font-size: 16px; }
  .brand-mark { width: 26px; height: 26px; }
  .header-cta { min-height: 44px; padding: 8px 11px; font-size: 12px; }
  .menu-toggle { padding-inline: 4px; }
  .hero { padding: var(--cg-s4) 0 var(--cg-s3); }
  .hero-grid { gap: var(--cg-s3); }
  .hero-copy .eyebrow { margin-bottom: var(--cg-s2); font-size: 12px; }
  .hero-copy h1 { margin-bottom: var(--cg-s2); font-size: 44px; line-height: 1.08; }
  .mobile-break { display: block; }
  .hero-copy .lead { margin-bottom: var(--cg-s2); font-size: 16px; line-height: 1.55; }
  .hero-copy .actions { gap: 10px 16px; }
  .hero-copy .btn { min-height: 44px; padding: 8px 14px; font-size: 13px; }
  .hero-copy .btn-text { padding-inline: 0; }
  .hero-meta { display: none; }
  .flow-top { padding-top: 10px; font-size: 10px; }
  .flow-status { min-height: 24px; margin-top: 3px; font-size: 12px; }
  .flow-stage, .state-svg { height: 200px; min-height: 200px; }
  .state-svg text { font-size: 26px; }
  .flow-controls { justify-content: flex-end; padding-top: 0; }
  .phase-control { display: none; }
  .flow-pause { min-width: 84px; }
  .flow-caption { margin-top: var(--cg-s1); }
  .state-legend { gap: var(--cg-s1) var(--cg-s2); margin-top: var(--cg-s1); }
  .legend-item { font-size: 12px; }
  .section { padding-block: 64px; }
  .section-heading { gap: 0; margin-bottom: var(--cg-s4); }
  .section-heading h2 { font-size: 32px; }
  .section-heading > p { font-size: 16px; }
  .problem-grid, .situation-switch, .comparison, .method-grid { grid-template-columns: 1fr; }
  .problem-grid { gap: 0; margin-bottom: 24px; }
  .problem { padding: 17px 0; }
  .problem p { font-size: 17px; }
  .situation-switch { gap: 12px; }
  .situation-choice { min-height: 96px; }
  .recommendation { align-items: flex-start; flex-direction: column; }
  .product-map { gap: 34px; }
  h3 { font-size: 24px; }
  .product-result { min-height: 0; padding-top: var(--cg-s2); }
  .product-flow { height: 190px; }
  .product-flow .product-label { font-size: 22px; }
  .product-flow .product-note { font-size: 24px; }
  .product-flow .condition-set text { font-size: 24px; }
  .product-caption { font-size: 13px; }
  .product-noscript { grid-template-columns: 1fr; }
  .method-section { padding-block: 64px; }
  .method-heading { margin-bottom: var(--cg-s4); }
  .method-loop, .footer-row { align-items: flex-start; flex-direction: column; }
  .comparison { gap: 40px; }
  .channel-brief { gap: 16px; }
  .message-shell { padding: 28px 24px; }
  .scenario-row { grid-template-columns: 1fr; gap: 14px; padding: 30px 0; }
  .scenario-links { grid-template-columns: 1fr; }
  .faq summary { font-size: 17px; }
  .footer-meta { text-align: left; }
}

@media (max-width: 350px) {
  .container { width: calc(100% - 40px); }
  .hero-copy h1 { font-size: 38px; }
  .hero-copy .actions { align-items: flex-start; flex-direction: column; }
  .hero-grid { gap: 24px; }
  .flow-stage, .state-svg { height: 184px; min-height: 184px; }
  .state-legend { gap: var(--cg-s1); }
  .product-flow .product-label, .product-flow .product-note, .product-flow .condition-set text { font-size: 28px; }
  .message-shell { padding: 24px 20px; }
}

@media (max-width: 768px) {
  #comparison, #scenarios, #faq, #cta { padding-block: 64px; }
  #comparison .section-heading, #scenarios .section-heading, #faq .section-heading, #cta .section-heading { margin-bottom: 32px; }
  #service { padding-block: 48px; }
  .service-heading { margin-bottom: 32px; }
  .service-level { grid-template-columns: minmax(0, 1fr); gap: 16px; padding: 24px 0; }
  .service-level-head, .service-definition, .service-flow { grid-column: auto; }
  .service-level h3 { margin-top: 12px; }
  .service-footer { align-items: flex-start; flex-direction: column; gap: 24px; }
  .fee-note { grid-template-columns: 1fr; gap: 8px; }
  .channel-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .channel-tabs { display: grid; grid-column: auto; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .channel-tab { min-width: 0; min-height: 44px; justify-content: center; padding: 8px 4px; font-size: 14px; white-space: nowrap; }
  .channel-tab-desktop, .channel-tab-index { display: none; }
  .channel-tab-mobile { display: inline; }
  .channel-panels { grid-column: auto; }
  .channel-brief { grid-template-columns: 1fr; gap: 18px; }
  .channel-fact { padding-top: 12px; }
  .channel-signal-flow { grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr); }
  .channel-signal-flow > b { margin-inline: 4px; }
  .signal-step { grid-template-columns: 10px minmax(0, 1fr); gap: 6px; font-size: 14px; }
  .signal-step i { width: 9px; height: 9px; }
  .email-details { grid-template-columns: 1fr; gap: 14px; }
  .carrier-action-list { gap: 12px 18px; }
  .carrier-action-list span { padding-right: 18px; }
  .channel-boundary-note { margin-top: 24px; font-size: 14px; }
  .no-js .channel-tabs { display: none; }
}

@media (max-width: 430px) {
  .refinement-title-line { display: block; }
  .channel-title-line { display: block; }
  .service-title-line { display: block; }
  .channel-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

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