/* Native CSS. Design variance: 7; motion: 6; density: 4.
   Radii: 8px controls, 16px panels.
   Layers: header 10, skip link 20. */
:root {
  color-scheme: dark;
  --page: #080e12;
  --surface: #111c22;
  --subtle: #0c151b;
  --text: #eaf3f2;
  --muted: #a2b3b9;
  --line: #25363f;
  --accent: #7de4c5;
  --accent-hover: #a4f3dc;
  --accent-soft: #112c2b;
  --on-accent: #08221b;
  --header: rgba(8, 14, 18, .86);
  --shadow: 0 24px 70px rgba(0, 8, 13, .22);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--page);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; -webkit-text-size-adjust: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; cursor: pointer; }
button, a, summary { touch-action: manipulation; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { display: block; max-width: 100%; }
.icon { display: inline-block; width: 20px; height: 20px; flex-shrink: 0; vertical-align: middle; }
.icon-defs { position: absolute; width: 0; height: 0; overflow: hidden; pointer-events: none; }
button, input, summary { -webkit-appearance: none; }
button:focus-visible, a:focus-visible, summary:focus-visible, [tabindex="0"]:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
::selection { color: var(--text); background: var(--accent-soft); }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 600; }
.container { width: min(1240px, calc(100% - 96px)); margin-inline: auto; }
.section { padding-block: 96px; }
.skip-link { position: fixed; top: -80px; left: 20px; z-index: 20; padding: 12px 24px; background: var(--surface); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 10; background: var(--header); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav-inner { height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; white-space: nowrap; font-size: 22px; font-weight: 650; letter-spacing: -.6px; }
.brand img { border-radius: 8px; object-fit: contain; }
.brand-divider { width: 1px; height: 22px; background: var(--line); margin: 0 5px 0 8px; }
.brand-product { font-size: 16px; font-weight: 500; letter-spacing: 1px; }
.desktop-nav { display: flex; gap: 34px; font-size: 14px; }
.desktop-nav a, .mobile-nav a, .site-footer a { transition: color .2s; }
.desktop-nav a:hover, .mobile-nav a:hover, .site-footer a:hover { color: var(--accent); }
.nav-actions { display: flex; align-items: center; gap: 18px; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; gap: 34px; padding: 13px 24px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: var(--on-accent); font-size: 15px; font-weight: 500; white-space: nowrap; transition: background .2s, transform .2s; }
.button:hover { background: var(--accent-hover); border-color: var(--accent-hover); transform: translateY(-2px); }
.button:active { transform: scale(.98); }
.button span { display: inline-flex; align-items: center; line-height: 1; }
.button-small { min-height: 40px; padding: 8px 18px; font-size: 13px; gap: 22px; }
.menu-toggle { display: none; width: 40px; height: 44px; padding: 10px; border: 0; background: none; }
.menu-toggle span { display: block; height: 1px; margin: 6px 0; background: var(--text); }
.mobile-nav { padding-block: 8px 20px; }
.mobile-nav[hidden] { display: none; }
.hero { position: relative; isolation: isolate; overflow: hidden; min-height: 720px; min-height: min(820px, calc(100svh - 80px)); }
.hero-inner { min-height: inherit; position: relative; display: flex; flex-direction: column; justify-content: center; padding-block: 90px 150px; }
.hero-copy { max-width: 610px; position: relative; }
.eyebrow { font-size: 12px; letter-spacing: 2px; color: var(--accent); font-weight: 600; margin-bottom: 22px; }
h1 { font-size: clamp(48px, 4.8vw, 70px); line-height: 1.3; letter-spacing: -2px; }
h1 span { color: var(--accent); }
.hero-description { max-width: 490px; color: #b5c5c8; font-size: 16px; line-height: 2; margin-top: 27px; }
.hero-actions { display: flex; align-items: center; gap: 30px; margin-top: 35px; }
.text-link { display: inline-flex; align-items: center; gap: 14px; font-size: 14px; font-weight: 500; }
.text-link span { transition: transform .2s; }
.text-link:hover { color: var(--accent); }
.text-link:hover span { transform: translate(2px, -2px); }
.hero-visual { position: absolute; inset: 0; z-index: -3; pointer-events: none; }
.hero-visual img { position: absolute; top: 50%; right: 6%; width: 70%; height: auto; object-fit: contain; opacity: .46; transform: translateY(-50%); filter: saturate(.75) brightness(.9); mask-image: linear-gradient(180deg, transparent, #000 15%, #000 72%, transparent 96%); }
.hero-visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--page) 0%, rgba(8, 14, 18, .95) 14%, rgba(8, 14, 18, .5) 42%, transparent 72%), linear-gradient(0deg, var(--page), transparent 32%, transparent 85%, rgba(8, 14, 18, .45)); }
.hero-grid { position: absolute; inset: 0; z-index: -2; pointer-events: none; background-image: linear-gradient(rgba(125, 228, 197, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(125, 228, 197, .045) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(90deg, transparent, #000 35%, #000 90%, transparent); }
.hero-orbit { position: absolute; right: 11%; top: 26%; width: 27%; aspect-ratio: 1; z-index: -1; pointer-events: none; border: 1px solid rgba(125, 228, 197, .12); border-radius: 50%; transform: rotate(-25deg); opacity: .28; }
.hero-orbit::before { content: ''; position: absolute; inset: -22px; border: 1px dashed rgba(125, 228, 197, .1); border-radius: 50%; }
.hero-orbit span { position: absolute; inset: -3px; animation: orbit 24s linear infinite; }
.hero-orbit span::after { content: ''; position: absolute; top: 50%; left: 0; width: 5px; height: 5px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 14px rgba(125, 228, 197, .4); }
.hero-orbit span:nth-child(2) { animation-delay: -12s; }
.hero .eyebrow { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; letter-spacing: 1px; }
.protocol-bracket { opacity: .65; margin-inline: 4px; }
.hero-protocol { position: absolute; bottom: 32px; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; padding-top: 25px; border-top: 1px solid var(--line); }
.protocol-route { display: flex; align-items: center; gap: 20px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 11px; letter-spacing: 2px; color: var(--muted); }
.protocol-route strong { color: var(--accent); font-weight: 500; }
.protocol-route i { position: relative; width: 70px; height: 1px; background: var(--line); overflow: hidden; }
.protocol-route i::after { content: ''; position: absolute; left: -30px; width: 30px; height: 1px; background: var(--accent); animation: signal 3s ease-in-out infinite; }
.protocol-route i:nth-of-type(2)::after { animation-delay: 1.5s; }
.protocol-capabilities { display: flex; gap: 28px; color: var(--muted); font-size: 12px; }
.protocol-capabilities span::before { content: '+'; margin-right: 10px; color: var(--accent); }
@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes signal { 70%, 100% { transform: translateX(110px); } }
.section-heading { margin-bottom: 44px; }
h2 { font-size: clamp(27px, 2.6vw, 38px); line-height: 1.4; letter-spacing: -.9px; }
.section-heading p:not(.eyebrow) { margin-top: 18px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.connection { padding-top: 85px; }
.connection .eyebrow { margin-bottom: 15px; }
.connection-map { display: grid; grid-template-columns: 1fr 105px 1.15fr 105px 1.1fr; align-items: center; padding: 35px 0; }
.map-source, .map-hub { display: flex; flex-direction: column; align-items: center; text-align: center; }
.map-source strong, .map-hub strong { font-size: 21px; font-weight: 550; margin: 14px 0 5px; }
.map-source > span:last-child, .map-hub > span:last-child { color: var(--muted); font-size: 12px; }
.map-illustration { width: 96px; height: 96px; object-fit: contain; mask-image: radial-gradient(ellipse, #000 42%, transparent 72%); }
.map-hub { background: linear-gradient(135deg, #143b34, var(--surface)); border: 1px solid #376555; padding: 32px 20px; border-radius: 16px; box-shadow: inset 0 0 40px rgba(125, 228, 197, .04); }
.map-hub img { border-radius: 8px; }
.map-line { height: 1px; background: var(--line); position: relative; }
.map-line::before { content: ''; position: absolute; left: 0; width: 25%; height: 1px; background: var(--accent); animation: map-signal 3s ease-in-out infinite; }
@keyframes map-signal { 0% { transform: translateX(0); opacity: 0; } 20% { opacity: 1; } 80%, 100% { transform: translateX(300%); opacity: 0; } }
.map-line::after { content: ''; position: absolute; right: 0; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--muted); border-right: 1px solid var(--muted); transform: rotate(45deg); }
.map-line span { position: absolute; bottom: 12px; width: 100%; text-align: center; font-size: 11px; color: var(--muted); }
.map-destinations { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding-left: 20px; }
.map-destinations span { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 10px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; white-space: nowrap; font-size: 13px; }
.map-destinations .icon { width: 17px; height: 17px; color: var(--accent); }
.connection-notes { display: flex; gap: 52px; justify-content: center; font-size: 12px; color: var(--muted); margin-top: 35px; }
.connection-notes span { display: inline-flex; align-items: center; gap: 8px; }
.connection-notes .icon { width: 14px; height: 14px; color: var(--accent); }
.scenarios { background: var(--subtle); border-block: 1px solid var(--line); }
.scenario-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 65px; align-items: start; }
.scenario-tabs { display: flex; flex-direction: column; gap: 5px; }
.scenario-tab { position: relative; display: flex; flex-direction: column; text-align: left; padding: 23px 24px 23px 27px; border: 1px solid transparent; border-left: 2px solid var(--line); border-radius: 0 8px 8px 0; background: transparent; transition: background .2s, border-color .2s; }
.scenario-tab[aria-selected="true"] { background: var(--surface); border-left-color: var(--accent); }
.scenario-tab:hover { background: var(--surface); }
.tab-caption { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-size: 12px; margin-bottom: 6px; }
.tab-caption .icon { width: 17px; height: 17px; }
.scenario-sidebar { min-width: 0; }
.scenario-rotation { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; color: var(--muted); font-size: 11px; }
.scenario-rotation button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 44px; padding: 8px 10px; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--accent); font-size: 12px; }
.scenario-rotation button:hover { background: var(--surface); border-color: var(--line); }
.scenario-rotation .icon { width: 16px; height: 16px; }
.scenario-tab strong { font-size: 19px; font-weight: 550; }
.scenario-tab > span:not(.tab-caption):not(.tab-arrow) { color: var(--muted); font-size: 13px; margin-top: 7px; }
.tab-arrow { position: absolute; right: 22px; top: 21px; font-size: 21px; color: var(--accent); opacity: 0; }
.scenario-tab[aria-selected="true"] .tab-arrow { opacity: 1; }
.scenario-panel { background: linear-gradient(135deg, #14252a, var(--surface) 60%); border-radius: 16px; padding: 32px; border: 1px solid #34504e; box-shadow: var(--shadow); }
.demo-heading { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--muted); }
.demo-label { border: 1px solid var(--line); border-radius: 4px; padding: 2px 8px; font-size: 11px; }
.scenario-intro { display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: 12px; padding-block: 22px; }
.scenario-art { grid-column: 2; grid-row: 1; min-width: 0; }
.scenario-art img { width: 100%; height: 164px; object-fit: contain; mask-image: radial-gradient(ellipse, #000 40%, transparent 73%); }
.demo-question { grid-column: 1; grid-row: 1; font-size: 21px; line-height: 1.7; font-weight: 500; margin: 0; text-wrap: pretty; }
.demo-response { padding-top: 26px; border-top: 1px solid var(--line); }
.response-heading { display: flex; align-items: center; gap: 11px; }
.response-heading strong { font-size: 15px; font-weight: 600; }
.ai-mark { display: inline-flex; color: var(--accent); }
.ai-mark .icon { width: 24px; height: 24px; }
.demo-response p { font-size: 13px; line-height: 1.9; color: var(--muted); margin-top: 14px; min-height: 50px; }
.demo-steps { list-style: none; padding: 0; margin: 21px 0; display: grid; gap: 13px; }
.demo-steps li { display: flex; gap: 18px; font-size: 13px; align-items: baseline; }
.demo-steps li span { flex-shrink: 0; color: var(--accent); font-size: 11px; }
.demo-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.demo-tags span { padding: 4px 10px; font-size: 11px; border-radius: 4px; background: var(--subtle); color: var(--muted); }
.demo-note { font-size: 11px; color: var(--muted); margin-top: 25px; line-height: 1.8; }
.human-section { display: grid; grid-template-columns: 1.12fr 1fr; align-items: center; gap: 90px; padding-block: 112px; }
.human-image { position: relative; overflow: hidden; border-radius: 16px; }
.human-image::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8, 14, 18, .5), rgba(8, 14, 18, .12)); pointer-events: none; }
.human-image img { width: 100%; aspect-ratio: 1.25; height: auto; object-fit: cover; border-radius: 16px; filter: saturate(.55); }
.human-copy h2 { line-height: 1.55; }
.human-copy p { max-width: 360px; font-size: 15px; color: var(--muted); line-height: 2; margin-block: 25px 32px; }
.control-section { padding-top: 16px; }
.control-layout { display: grid; grid-template-columns: 1fr 1.1fr; align-items: center; gap: 70px; }
.control-visual img { width: 100%; height: auto; max-height: 410px; object-fit: contain; mask-image: radial-gradient(ellipse, #000 42%, transparent 73%); }
.control-grid { display: grid; grid-template-columns: 1fr; gap: 26px; }
.control-grid article { position: relative; padding: 26px 0 0 54px; border-top: 1px solid var(--line); }
.control-mark { position: absolute; left: 0; top: 26px; display: inline-flex; color: var(--accent); }
.control-mark .icon { width: 25px; height: 25px; }
h3 { font-size: 19px; }
.control-grid p { max-width: 420px; margin-top: 11px; font-size: 14px; line-height: 1.9; color: var(--muted); }
.access-section { background: var(--subtle); }
.access-steps { list-style: none; margin: 55px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.access-steps li { position: relative; }
.access-steps li:not(:last-child)::after { content: ''; height: 1px; position: absolute; top: 20px; left: 55px; right: 0; background: var(--line); }
.step-number { display: inline-flex; justify-content: center; align-items: center; font-size: 14px; width: 40px; height: 40px; border: 1px solid var(--line); border-radius: 8px; color: var(--accent); background: var(--surface); }
.access-steps h3 { margin-block: 24px 10px; font-size: 17px; }
.access-steps p { font-size: 13px; max-width: 210px; color: var(--muted); line-height: 1.9; }
.faq-section { display: grid; grid-template-columns: .7fr 1.3fr; gap: 70px; }
.faq-heading p { margin-top: 16px; font-size: 14px; color: var(--muted); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary { list-style: none; cursor: pointer; padding: 22px 36px 22px 0; position: relative; font-size: 15px; font-weight: 500; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span::before, .faq-list summary span::after { content: ''; position: absolute; right: 2px; top: 33px; width: 12px; height: 1px; background: var(--accent); }
.faq-list summary span::after { transform: rotate(90deg); transition: transform .2s; }
.faq-list details[open] summary span::after { transform: rotate(0deg); }
.faq-list p { font-size: 13px; color: var(--muted); line-height: 1.95; padding: 0 35px 24px 0; }
.closing-section { background: radial-gradient(ellipse at right top, #164039, transparent 70%), var(--subtle); border: 1px solid #305248; border-radius: 16px; display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 55px; }
.closing-section .eyebrow { margin-bottom: 14px; }
.closing-section h2 { font-size: clamp(24px, 2.25vw, 32px); }
.closing-action { flex-shrink: 0; text-align: center; }
.closing-action p { font-size: 11px; color: var(--muted); margin-top: 12px; }
.site-footer { padding-block: 38px; margin-top: 44px; display: flex; align-items: center; gap: 24px; }
.footer-brand { font-size: 18px; }
.site-footer p, .site-footer > a:last-child { font-size: 12px; color: var(--muted); }
.site-footer > a:last-child { margin-left: auto; }
.will-reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.will-reveal.is-visible { opacity: 1; transform: none; }
@media (min-width: 961px) { .mobile-nav { display: none; } }
@media (max-width: 1100px) {
  .container { width: calc(100% - 64px); }
  .desktop-nav { gap: 22px; }
  .hero { min-height: 650px; }
  .hero-inner { padding-top: 70px; }
  .hero-description { font-size: 14px; }
  .connection-map { grid-template-columns: 1fr 55px 1.1fr 55px 1.15fr; }
  .map-line span { font-size: 10px; }
  .map-destinations { padding-left: 10px; gap: 8px; }
  .map-destinations span { padding-inline: 8px; font-size: 12px; }
  .scenario-layout { gap: 32px; }
  .scenario-tab { padding-left: 18px; }
  .scenario-tab strong { font-size: 17px; }
  .scenario-panel { padding: 26px; }
  .human-section { gap: 50px; }
  .closing-section { padding: 40px; }
}
@media (max-width: 960px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .mobile-nav { display: grid; gap: 4px; }
  .mobile-nav a { padding: 10px 0; font-size: 14px; }
  h1 { font-size: 54px; }
  .hero-visual::after { background: linear-gradient(90deg, var(--page), rgba(8, 14, 18, .65) 50%, rgba(8, 14, 18, .1)), linear-gradient(0deg, var(--page), transparent 50%); }
  .protocol-capabilities { gap: 15px; }
  .hero-actions { gap: 22px; }
  .hero-actions .button { gap: 20px; padding-inline: 20px; }
  .hero-actions .text-link { font-size: 12px; gap: 7px; }
  .map-source strong, .map-hub strong { font-size: 17px; }
  .connection-notes { gap: 28px; }
  .scenario-layout { gap: 24px; grid-template-columns: .85fr 1.15fr; }
  .tab-arrow { right: 12px; }
  .scenario-tab strong { font-size: 16px; }
  .scenario-tab > span:not(.tab-caption):not(.tab-arrow) { font-size: 12px; }
  .scenario-intro { grid-template-columns: 1fr; gap: 0; padding-block: 12px 22px; }
  .scenario-art { grid-column: 1; grid-row: 1; }
  .scenario-art img { height: 140px; }
  .demo-question { grid-column: 1; grid-row: 2; min-height: 3.4em; }
  .demo-response p { min-height: 5.7em; }
  .demo-question { font-size: 20px; }
  .control-grid { column-gap: 45px; }
  .faq-section { grid-template-columns: .6fr 1.4fr; gap: 35px; }
}
@media (max-width: 767px) {
  html { scroll-padding-top: 85px; }
  .container { width: calc(100% - 40px); max-width: calc(100% - env(safe-area-inset-left) - env(safe-area-inset-right) - 40px); }
  .section { padding-block: 52px; }
  .nav-inner { height: 68px; gap: 12px; }
  .brand { font-size: 19px; gap: 7px; }
  .brand img { width: 30px; height: 30px; }
  .brand-divider { margin-inline: 5px; height: 18px; }
  .brand-product { font-size: 13px; }
  .nav-actions { gap: 8px; }
  .button-small { min-height: 44px; font-size: 12px; gap: 12px; padding: 8px 12px; }
  .menu-toggle { width: 40px; padding-inline: 9px; }
  .hero { min-height: 700px; }
  .hero-inner { justify-content: flex-start; min-height: 700px; padding-block: 44px 110px; }
  .hero-copy { max-width: 460px; }
  .hero .eyebrow { margin-bottom: 19px; }
  h1 { font-size: clamp(38px, 9.5vw, 55px); letter-spacing: -1px; line-height: 1.3; }
  .hero-description { max-width: 410px; font-size: 14px; margin-top: 21px; }
  .hero-actions { margin-top: 27px; gap: 30px; }
  .hero-actions .text-link { font-size: 13px; gap: 10px; }
  .hero-visual { inset: 305px 0 95px -100px; }
  .hero-visual img { right: 0; width: 100%; height: auto; opacity: .4; }
  .hero-visual::after { background: linear-gradient(180deg, var(--page), rgba(8, 14, 18, .7) 20%, transparent 50%, var(--page) 100%), linear-gradient(90deg, rgba(8, 14, 18, .6), transparent); }
  .hero-grid { background-size: 56px 56px; }
  .hero-orbit { width: 48%; top: 54%; right: 4%; opacity: .2; }
  .hero .eyebrow { font-size: 10px; letter-spacing: .5px; }
  .hero-protocol { bottom: 26px; flex-direction: column; align-items: flex-start; gap: 18px; padding-top: 22px; }
  .protocol-route { gap: 14px; font-size: 10px; letter-spacing: 1px; }
  .protocol-route i { width: 45px; }
  .protocol-capabilities { font-size: 10px; gap: 25px; }
  .connection { padding-top: 48px; }
  .section-heading { margin-bottom: 32px; }
  h2 { font-size: 25px; line-height: 1.5; letter-spacing: -.6px; text-wrap: balance; }
  .section-heading p:not(.eyebrow) { font-size: 14px; margin-top: 16px; }
  .desktop-break { display: none; }
  .connection-map { grid-template-columns: 1fr; justify-items: center; padding-block: 0; }
  .map-source, .map-hub { width: 100%; max-width: none; display: grid; grid-template-columns: 60px 1fr; gap: 0 14px; text-align: left; align-items: center; padding: 18px 20px; border-radius: 16px; }
  .map-source { background: var(--subtle); border: 1px solid var(--line); }
  .map-source img, .map-hub img { grid-row: 1 / 3; grid-column: 1; justify-self: center; }
  .map-source .map-illustration { width: 70px; height: 70px; max-width: none; }
  .map-source strong, .map-hub strong { grid-column: 2; align-self: end; font-size: 16px; margin: 0 0 3px; }
  .map-source > span:last-child, .map-hub > span:last-child { grid-column: 2; align-self: start; font-size: 11px; }
  .map-line { height: 32px; width: 1px; margin-block: 9px; }
  .map-line::before { width: 1px; height: 25%; animation-name: map-signal-mobile; }
  .map-line::after { right: -3px; top: auto; bottom: 0; transform: rotate(135deg); }
  .map-line span { left: 16px; bottom: 7px; width: 80px; text-align: left; font-size: 10px; }
  .map-destinations { width: 100%; grid-template-columns: repeat(3, 1fr); padding: 0; gap: 10px; }
  .map-destinations span { flex-direction: column; gap: 7px; font-size: 12px; padding: 12px 6px; }
  .map-destinations .icon { width: 19px; height: 19px; }
  .connection-notes { flex-wrap: wrap; flex-direction: row; justify-content: flex-start; align-items: center; gap: 10px 20px; margin-top: 22px; font-size: 11px; }
  .scenario-layout { grid-template-columns: 1fr; gap: 24px; }
  .scenario-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .scenario-tab { border-radius: 8px; border: 1px solid var(--line); padding: 16px 14px; }
  .scenario-tab[aria-selected="true"] { border-color: var(--accent); }
  .scenario-tab strong { font-size: 14px; }
  .scenario-tab .tab-caption { font-size: 11px; margin-bottom: 5px; }
  .scenario-tab > span:not(.tab-caption) { display: none; }
  .scenario-panel { padding: 22px; }
  .scenario-intro { padding-block: 4px 22px; }
  .scenario-art img { height: 156px; }
  .demo-question { font-size: 19px; min-height: 3.4em; margin: 0; line-height: 1.7; }
  .demo-steps { gap: 15px; }
  .demo-steps li { gap: 12px; font-size: 12px; }
  .human-section { grid-template-columns: 1fr; gap: 34px; }
  .human-image img { aspect-ratio: 1.4; }
  .human-copy h2 br { display: none; }
  .human-copy p { max-width: none; font-size: 14px; margin-block: 20px 24px; }
  .control-section { padding-top: 0; }
  .control-layout { grid-template-columns: 1fr; gap: 20px; }
  .control-visual img { height: 185px; }
  .control-grid { grid-template-columns: 1fr; gap: 24px; }
  .control-grid article { padding-top: 22px; padding-left: 47px; }
  .control-grid h3 { font-size: 17px; }
  .control-grid p { font-size: 13px; }
  .access-steps { grid-template-columns: 1fr 1fr; gap: 32px 24px; margin-top: 36px; }
  .access-steps li:nth-child(2)::after { display: none; }
  .access-steps h3 { margin-top: 18px; font-size: 16px; }
  .access-steps p { font-size: 12px; }
  .faq-section { grid-template-columns: 1fr; gap: 28px; }
  .faq-list summary { font-size: 14px; }
  .faq-list p { padding-right: 10px; }
  .closing-section { align-items: flex-start; flex-direction: column; padding: 32px 24px; gap: 27px; }
  .closing-section h2 { font-size: 25px; }
  .closing-section .eyebrow { font-size: 11px; letter-spacing: 1px; }
  .closing-action { text-align: left; }
  .closing-action p { text-align: center; }
  .site-footer { flex-wrap: wrap; gap: 12px 20px; margin-top: 24px; padding-block: 28px; }
  .site-footer p { margin-left: auto; }
  .site-footer > a:last-child { width: 100%; margin: 0; }
  .site-footer { padding-bottom: max(28px, env(safe-area-inset-bottom)); }
}
@keyframes map-signal-mobile { 0% { transform: translateY(0); opacity: 0; } 20% { opacity: 1; } 80%, 100% { transform: translateY(300%); opacity: 0; } }
@media (max-width: 374px) {
  .container { width: calc(100% - 32px); }
  .brand { font-size: 17px; gap: 5px; }
  .brand-product { font-size: 11px; }
  .brand-divider { margin-inline: 3px; }
  .button-small { padding-inline: 10px; gap: 8px; }
  .scenario-tab { padding-inline: 10px; }
  .scenario-tab strong { font-size: 12px; }
  .scenario-panel { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .will-reveal { opacity: 1; transform: none; }
}
@media (prefers-reduced-transparency: reduce) {
  .site-header { background: var(--page); backdrop-filter: none; -webkit-backdrop-filter: none; }
}