:root {
  color-scheme: dark;
  --ink: #07111f;
  --ink-2: #0a1727;
  --panel: #0d1d30;
  --line: rgba(151, 181, 207, 0.18);
  --line-strong: rgba(91, 215, 255, 0.34);
  --text: #f4f8fb;
  --muted: #9bb0c4;
  --cyan: #38d8ff;
  --cyan-soft: #8be8ff;
  --orange: #ff9d42;
  --white: #ffffff;
  --shell: min(1180px, calc(100vw - 48px));
  --radius: 8px;
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--ink); color: var(--text); font-size: 16px; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 100; background: var(--white); color: var(--ink); padding: 10px 16px; border-radius: 4px; }
.skip-link:focus { top: 12px; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 10; border-bottom: 1px solid var(--line); }
.nav-wrap { height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-mark { width: 36px; height: 36px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 8px; border: 1px solid var(--line-strong); background: rgba(56, 216, 255, 0.05); }
.brand-mark i { display: block; border-block: 3px solid var(--cyan); }
.brand-mark i:first-child { border-right: 3px solid var(--cyan); }
.brand-mark i:last-child { border-left: 3px solid var(--cyan); }
.brand strong { display: block; font-family: "Microsoft YaHei", "PingFang SC", sans-serif; letter-spacing: .08em; font-size: .95rem; line-height: 1.2; }
.brand small { display: block; color: var(--muted); font-size: .61rem; letter-spacing: .15em; line-height: 1.3; margin-top: 4px; }
.desktop-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 42px); margin-left: auto; }
.desktop-nav a { color: #bfd0df; font-size: .88rem; transition: color .2s ease; }
.desktop-nav a:hover, .desktop-nav a:focus-visible { color: var(--white); }
.nav-cta { display: inline-flex; align-items: center; gap: 12px; padding: 9px 15px; border-left: 1px solid var(--line); color: var(--cyan-soft); font-size: .88rem; }
.menu-toggle, .mobile-menu { display: none; }

.hero { position: relative; overflow: hidden; min-height: 820px; display: grid; align-items: center; padding: 146px 0 86px; background: radial-gradient(circle at 75% 35%, rgba(23, 103, 135, .18), transparent 34%), linear-gradient(145deg, #07111f 0%, #071423 55%, #091828 100%); }
.hero::before { content: "JY"; position: absolute; right: -1vw; bottom: -20vh; font-size: clamp(280px, 42vw, 660px); line-height: .8; color: rgba(255,255,255,.018); font-weight: 800; letter-spacing: -.1em; pointer-events: none; }
.hero-grid { position: absolute; inset: 0; opacity: .34; background-image: linear-gradient(rgba(120, 181, 211, .09) 1px, transparent 1px), linear-gradient(90deg, rgba(120, 181, 211, .09) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, black, transparent 42%, black); }
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0, .98fr) minmax(480px, 1.02fr); align-items: center; gap: clamp(56px, 7vw, 100px); }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--cyan-soft); font-size: .72rem; letter-spacing: .17em; font-weight: 600; }
.eyebrow span { width: 34px; height: 1px; background: var(--cyan); box-shadow: 9px 0 18px var(--cyan); }
h1, h2 { margin: 0; font-family: "Microsoft YaHei", "PingFang SC", sans-serif; }
h1 { margin-top: 23px; font-size: clamp(3.5rem, 6vw, 5.4rem); line-height: 1.09; letter-spacing: -.045em; font-weight: 700; }
h1 em { color: var(--cyan); font-style: normal; font-weight: 700; }
.hero-lead { max-width: 620px; margin: 28px 0 0; color: #b8c7d5; font-size: 1.1rem; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 35px; }
.button { min-height: 48px; padding: 10px 22px; display: inline-flex; align-items: center; justify-content: center; gap: 34px; border: 1px solid var(--line-strong); font-size: .9rem; font-weight: 600; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #001520; background: var(--cyan); border-color: var(--cyan); }
.button-primary:hover { background: #77e7ff; }
.button-ghost { color: #dceaf4; background: rgba(255,255,255,.025); }
.button-ghost:hover { border-color: var(--cyan); }
.capability-tags { display: flex; flex-wrap: wrap; gap: 9px; list-style: none; margin: 30px 0 0; padding: 0; }
.capability-tags li { padding: 5px 10px; border: 1px solid var(--line); color: #9eb5c9; font-size: .76rem; letter-spacing: .04em; }
.hero-meta { display: flex; gap: 28px; margin-top: 48px; color: #71899e; font-size: .72rem; letter-spacing: .12em; }
.hero-meta span + span { position: relative; }
.hero-meta span + span::before { content: ""; position: absolute; left: -14px; top: 50%; width: 2px; height: 2px; border-radius: 50%; background: var(--cyan); }

.control-panel { position: relative; min-height: 488px; padding: 27px; border: 1px solid var(--line-strong); background: linear-gradient(145deg, rgba(15, 35, 56, .86), rgba(8, 22, 37, .92)); box-shadow: 0 40px 100px rgba(0,0,0,.28), inset 0 0 0 1px rgba(255,255,255,.015); }
.control-panel::after { content: ""; position: absolute; inset: -7px 34px auto; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); opacity: .7; }
.panel-head { display: flex; justify-content: space-between; align-items: flex-start; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.panel-head strong { display: block; margin-top: 5px; font-size: 1rem; letter-spacing: .05em; }
.panel-kicker { display: block; color: #708ca4; font-size: .62rem; letter-spacing: .2em; }
.live-badge { display: flex; align-items: center; gap: 7px; color: #7e96aa; font-size: .61rem; letter-spacing: .15em; }
.live-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); animation: pulse 2.2s infinite; }
.topology { padding: 24px 0 18px; }
.topology-row { display: flex; justify-content: space-between; align-items: stretch; }
.node { position: relative; padding: 14px 15px; border: 1px solid var(--line); background: rgba(4, 13, 24, .45); }
.node span, .node small { display: block; }
.node span { color: var(--cyan); font-size: .59rem; letter-spacing: .14em; }
.node strong { display: block; margin-top: 4px; color: #e8f2f8; font-size: .82rem; }
.node small { color: #6f899f; font-size: .63rem; }
.master-node { width: 55%; border-color: rgba(56,216,255,.28); }
.cycle-readout { display: flex; flex-direction: column; justify-content: center; align-items: flex-end; }
.cycle-readout small { color: #617d93; font-size: .56rem; letter-spacing: .18em; }
.cycle-readout strong { color: var(--orange); font-size: .9rem; letter-spacing: .14em; }
.bus-line { position: relative; height: 65px; margin: 0 10%; border-bottom: 1px solid var(--cyan); color: var(--cyan); }
.bus-line::before { content: ""; position: absolute; left: 0; bottom: -4px; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 11px var(--cyan); }
.bus-line span { position: absolute; left: 14px; bottom: 7px; font-size: .6rem; letter-spacing: .15em; }
.bus-line i { position: absolute; bottom: -22px; width: 1px; height: 21px; background: var(--cyan); }
.bus-line i:nth-of-type(1) { left: 7%; }.bus-line i:nth-of-type(2) { left: 50%; }.bus-line i:nth-of-type(3) { right: 7%; }
.axis-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.axis-node::before { content: ""; position: absolute; right: 9px; top: 10px; width: 4px; height: 4px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.signal-strip { height: 46px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; padding-inline: 12px; border: 1px solid var(--line); background: rgba(0,0,0,.13); }
.signal-strip > span { color: var(--orange); font-size: .65rem; font-weight: 700; }
.signal-strip small { color: #617a90; font-size: .52rem; letter-spacing: .14em; }
.signal-bars { height: 18px; display: flex; align-items: center; gap: 4px; overflow: hidden; }
.signal-bars i { min-width: 10px; height: 4px; background: var(--cyan); opacity: .55; }
.signal-bars i:nth-child(3n) { height: 12px; opacity: .9; }
.signal-bars i:nth-child(4n) { height: 8px; background: var(--orange); }
.panel-foot { display: flex; justify-content: space-between; gap: 12px; padding-top: 19px; color: #718a9f; font-size: .64rem; }
.panel-foot span { display: flex; align-items: center; gap: 6px; }
.panel-foot i { width: 4px; height: 4px; background: #53768e; }

.tech-intro { padding: 92px 0 105px; border-top: 1px solid var(--line); background: #f2f6f8; color: #0d1b28; }
.intro-grid { display: grid; grid-template-columns: .45fr 1.5fr .72fr; gap: clamp(30px, 5vw, 72px); align-items: start; }
.section-index { padding-top: 10px; color: #6e7e8b; font-size: .66rem; letter-spacing: .16em; }
.section-label { margin: 0 0 15px; color: #437282; font-size: .76rem; letter-spacing: .14em; text-transform: uppercase; }
h2 { font-size: clamp(2rem, 3.3vw, 3.25rem); line-height: 1.32; letter-spacing: -.035em; }
.section-note { margin: 47px 0 0; color: #5f6f7b; font-size: .9rem; }

.section-head { display: flex; justify-content: space-between; gap: 64px; align-items: end; margin-bottom: 42px; }
.section-head > p { width: min(100%, 380px); margin: 0 0 6px; color: #5c6d79; font-size: .92rem; }
.products { padding: 16px 0 118px; background: #f2f6f8; color: #0c1a27; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.product-card { overflow: hidden; border: 1px solid #d7e0e5; background: #fff; }
.product-card figure { position: relative; margin: 0; overflow: hidden; aspect-ratio: 1.55; background: #0b1624; }
.product-card img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .7s cubic-bezier(.2,.65,.25,1); }
.product-card:hover img { transform: scale(1.025); }
.product-card figcaption { position: absolute; top: 16px; left: 16px; padding: 6px 9px; color: #c8d8e6; background: rgba(4, 15, 27, .78); backdrop-filter: blur(8px); font-size: .57rem; letter-spacing: .16em; }
.product-content { display: grid; grid-template-columns: 70px 1fr; gap: 22px; padding: 33px 32px 35px; }
.product-no { color: #6d7d88; font-size: .65rem; letter-spacing: .14em; }
.product-en { margin: 0 0 3px; color: #477487; font-size: .64rem; letter-spacing: .17em; }
.product-content h3, .capability h3, .application-item h3, .pathway h3 { margin: 0; font-family: "Microsoft YaHei", "PingFang SC", sans-serif; }
.product-content h3 { font-size: 1.65rem; letter-spacing: -.03em; }
.product-content p:not(.product-en) { margin: 14px 0 16px; color: #5e6d77; font-size: .89rem; }
.product-content ul { margin: 0; padding: 0; list-style: none; color: #263945; font-size: .8rem; }
.product-content li { position: relative; padding: 7px 0 7px 15px; border-top: 1px solid #edf1f3; }
.product-content li::before { content: ""; position: absolute; left: 0; top: 17px; width: 5px; height: 5px; background: #0d9fc3; }

.ethercat-detail { padding: 118px 0 110px; border-top: 1px solid var(--line); background: radial-gradient(circle at 12% 20%, rgba(21, 117, 151, .16), transparent 27%), #07111f; }
.detail-layout { display: grid; grid-template-columns: .83fr 1.17fr; gap: clamp(60px, 9vw, 130px); align-items: center; }
.section-label.light { color: var(--cyan-soft); }
.detail-copy h2, .pathway-title h2, .contact-copy h2 { color: var(--white); }
.detail-copy > p:not(.section-label) { margin: 25px 0 0; max-width: 520px; color: #9db1c2; }
.tech-scope { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.tech-scope span { padding: 6px 10px; border: 1px solid var(--line); color: #91aabd; font-size: .7rem; }
.layer-stack { position: relative; padding: 10px 0 10px 24px; }
.layer-stack::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 1px; background: linear-gradient(transparent, var(--cyan), transparent); }
.layer { position: relative; display: grid; grid-template-columns: 140px 1.1fr 1.4fr; gap: 20px; align-items: center; min-height: 77px; padding: 15px 22px; border: 1px solid var(--line); border-bottom: 0; background: rgba(14, 31, 49, .78); }
.layer:last-child { border-bottom: 1px solid var(--line); }
.layer::before { content: ""; position: absolute; left: -28px; top: calc(50% - 3px); width: 7px; height: 7px; background: var(--cyan); box-shadow: 0 0 12px rgba(56,216,255,.8); }
.layer small { color: #68849a; font-size: .55rem; letter-spacing: .13em; }
.layer strong { color: #e9f3f8; font-size: .88rem; }
.layer span { color: #7f98ab; font-size: .72rem; }
.layer-3 { border-color: rgba(56,216,255,.42); background: rgba(20, 67, 85, .38); }
.layer-3 small, .layer-3 strong { color: var(--cyan-soft); }
.capability-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: 92px; border-block: 1px solid var(--line); }
.capability { min-height: 248px; padding: 28px 25px; border-left: 1px solid var(--line); }
.capability:last-child { border-right: 1px solid var(--line); }
.capability > span { color: var(--cyan); font-size: .65rem; letter-spacing: .15em; }
.capability h3 { margin-top: 47px; color: #eff7fb; font-size: 1.06rem; }
.capability p { margin: 13px 0 0; color: #7f97aa; font-size: .8rem; line-height: 1.85; }

.applications { padding: 115px 0 124px; background: #f5f8f9; color: #0c1a27; }
.application-list { border-top: 1px solid #cbd6dc; }
.application-item { display: grid; grid-template-columns: 150px .6fr 1.1fr 170px; gap: 34px; align-items: center; min-height: 132px; border-bottom: 1px solid #cbd6dc; transition: background .22s ease, padding .22s ease; }
.application-item:hover { padding-inline: 16px; background: #ecf3f5; }
.app-index { color: #72818c; font-size: .65rem; letter-spacing: .16em; }
.application-item h3 { font-size: 1.32rem; }
.application-item p { margin: 0; color: #62717b; font-size: .86rem; }
.application-item > span { color: #71828c; text-align: right; font-size: .56rem; letter-spacing: .13em; }

.pathway { padding: 114px 0; background: #0a1928; }
.pathway-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(60px, 10vw, 150px); align-items: start; }
.pathway-title { position: sticky; top: 56px; }
.pathway-steps { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.pathway-steps li { display: grid; grid-template-columns: 70px 1fr; gap: 12px; padding: 29px 0; border-bottom: 1px solid var(--line); }
.pathway-steps li > span { color: var(--cyan); font-size: .65rem; letter-spacing: .14em; }
.pathway h3 { color: #eef6fa; font-size: 1.08rem; }
.pathway li p { margin: 8px 0 0; color: #859caf; font-size: .82rem; }

.about { position: relative; overflow: hidden; padding: 125px 0 128px; background: #eaf0f3; color: #0b1926; }
.about::after { content: ""; position: absolute; right: -80px; bottom: -250px; width: 460px; height: 460px; border: 1px solid rgba(7,60,78,.09); border-radius: 50%; box-shadow: 0 0 0 90px rgba(7,60,78,.025), 0 0 0 180px rgba(7,60,78,.018); }
.about-layout { position: relative; z-index: 1; display: grid; grid-template-columns: .58fr 1.1fr; gap: clamp(60px, 10vw, 150px); }
.about-number { color: #0b2434; font-size: clamp(4.3rem, 8vw, 8rem); line-height: .82; font-weight: 800; letter-spacing: -.09em; }
.about-number span { display: block; margin-top: 18px; color: #607784; font-size: .58rem; letter-spacing: .22em; }
.about-copy { max-width: 710px; }
.about-lead { margin: 26px 0 0; color: #213744; font-size: 1.08rem; line-height: 1.95; }
.about-copy > p:not(.section-label):not(.about-lead) { color: #62717a; font-size: .9rem; }
.company-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 38px 0 0; border-top: 1px solid #c5d1d7; }
.company-facts div { display: grid; grid-template-columns: 80px 1fr; gap: 12px; padding: 17px 0; border-bottom: 1px solid #c5d1d7; }
.company-facts div:nth-child(odd) { padding-right: 25px; }
.company-facts div:nth-child(even) { padding-left: 25px; border-left: 1px solid #c5d1d7; }
.company-facts dt { color: #73838d; font-size: .69rem; }
.company-facts dd { margin: 0; color: #263945; font-size: .78rem; }

.international { padding: 94px 0 100px; border-top: 1px solid #c4d0d6; background: #dfe8ec; color: #0b1926; }
.international-layout { display: grid; grid-template-columns: .55fr 1.2fr; gap: clamp(60px, 10vw, 150px); }
.international-title > span { display: block; max-width: 230px; margin-top: 18px; color: #60717c; font-size: .76rem; }
.international-copy h2 { font-size: clamp(1.55rem, 2.7vw, 2.6rem); letter-spacing: .01em; }
.international-copy > p { max-width: 780px; color: #526570; font-size: .9rem; }
.international-copy dl { margin: 31px 0 0; border-top: 1px solid #b7c7ce; }
.international-copy dl div { display: grid; grid-template-columns: 180px 1fr; gap: 25px; padding: 13px 0; border-bottom: 1px solid #b7c7ce; }
.international-copy dt { color: #6a7d88; font-size: .72rem; }
.international-copy dd { margin: 0; color: #253b47; font-size: .8rem; }
.international-copy .international-note { margin-top: 24px; color: #6c7d86; font-size: .7rem; }

.contact { position: relative; overflow: hidden; padding: 122px 0; background: #06101d; }
.contact::before { content: ""; position: absolute; width: 580px; height: 580px; right: -100px; top: -160px; background: radial-gradient(circle, rgba(33,177,217,.18), transparent 68%); }
.contact-grid { position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(85,150,180,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(85,150,180,.1) 1px, transparent 1px); background-size: 60px 60px; }
.contact-layout { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(70px, 11vw, 160px); align-items: center; }
.contact-copy > p:last-child { max-width: 610px; margin-top: 25px; color: #8da4b6; }
.contact-card { padding: 33px 34px; border: 1px solid var(--line-strong); background: rgba(11,30,47,.78); backdrop-filter: blur(12px); }
.contact-kicker { color: var(--cyan); font-size: .63rem; letter-spacing: .16em; }
.contact-card ul { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0 22px; margin: 23px 0 28px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.contact-card li { padding: 12px 0; border-bottom: 1px solid var(--line); color: #c1d2df; font-size: .77rem; }
.contact-identity { padding: 19px; background: rgba(56,216,255,.055); border-left: 2px solid var(--cyan); }
.contact-identity small, .contact-identity span { display: block; color: #7590a4; font-size: .64rem; }
.contact-identity strong { display: block; margin: 4px 0; color: #f1f7fa; font-size: .87rem; }
.contact-note { margin: 15px 0 0; color: #6f879a; font-size: .7rem; }

footer { padding: 55px 0 25px; border-top: 1px solid var(--line); background: #050c16; }
.footer-main { display: flex; justify-content: space-between; align-items: center; gap: 40px; padding-bottom: 42px; }
.footer-links { display: flex; gap: 32px; color: #8ca1b3; font-size: .76rem; }
.footer-links a:hover { color: var(--cyan-soft); }
.footer-bottom { display: grid; grid-template-columns: .7fr 1.3fr; gap: 40px; padding-top: 22px; border-top: 1px solid var(--line); color: #5d7284; font-size: .62rem; line-height: 1.6; }
.footer-bottom p { margin: 0; }
.footer-legal { text-align: right; }
.footer-legal p { margin: 0 0 5px; }
.footer-legal a { margin-left: 8px; color: #86cfe0; }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.reveal-ready .reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal-ready .reveal.is-visible { opacity: 1; transform: none; }

@keyframes pulse { 50% { opacity: .35; box-shadow: 0 0 2px var(--cyan); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .live-badge i { animation: none; } .button { transition: none; } }
@media (max-width: 980px) {
  :root { --shell: min(100% - 36px, 760px); }
  .desktop-nav { display: none; }
  .nav-cta { margin-left: auto; }
  .menu-toggle { width: 42px; height: 42px; display: grid; flex: 0 0 42px; margin-left: 0; place-content: center; gap: 6px; padding: 0; border: 1px solid var(--line); background: rgba(255,255,255,.025); }
  .menu-toggle span { width: 18px; height: 1px; display: block; background: #d7e6ef; transition: transform .2s ease; }
  .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); }
  .mobile-menu { position: absolute; inset: 88px 0 auto; display: grid; grid-template-columns: repeat(6, auto); justify-content: center; gap: 24px; max-height: 0; overflow: hidden; border-bottom: 1px solid transparent; background: rgba(6,17,29,.97); opacity: 0; transition: max-height .25s ease, opacity .2s ease, padding .25s ease; }
  .mobile-menu.is-open { max-height: 130px; padding: 21px; border-color: var(--line); opacity: 1; }
  .mobile-menu a { color: #bfd0df; font-size: .78rem; }
  body.menu-open { overflow: hidden; }
  .hero { padding-top: 140px; }
  .hero-layout { grid-template-columns: 1fr; gap: 58px; }
  .control-panel { width: min(100%, 650px); }
  .intro-grid { grid-template-columns: 120px 1fr; }
  .section-note { grid-column: 2; margin-top: 0; max-width: 600px; }
  .section-head { align-items: start; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { max-width: 760px; }
  .detail-layout, .pathway-layout, .about-layout, .international-layout, .contact-layout { grid-template-columns: 1fr; }
  .detail-copy { max-width: 700px; }
  .layer-stack { max-width: 760px; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .capability:nth-child(2) { border-right: 1px solid var(--line); }
  .capability:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .application-item { grid-template-columns: 95px .62fr 1fr; }
  .application-item > span { display: none; }
  .pathway-title { position: static; }
  .about-number { font-size: 6rem; }
  .contact-card { max-width: 680px; }
}
@media (max-width: 640px) {
  :root { --shell: calc(100% - 28px); }
  .nav-wrap { height: 74px; }
  .brand small { display: none; }
  .nav-cta { display: none; }
  .mobile-menu { inset-block-start: 74px; grid-template-columns: 1fr; justify-content: stretch; gap: 0; padding-inline: 18px; }
  .mobile-menu.is-open { max-height: 360px; padding-block: 10px; }
  .mobile-menu a { padding: 11px 0; border-bottom: 1px solid var(--line); }
  .hero { min-height: auto; padding: 118px 0 68px; }
  .hero-grid { background-size: 48px 48px; }
  h1 { font-size: clamp(2.45rem, 11vw, 3.2rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .hero-meta { flex-direction: column; gap: 4px; margin-top: 34px; }
  .hero-meta span + span::before { display: none; }
  .control-panel { min-height: 0; padding: 17px; }
  .axis-grid { grid-template-columns: 1fr; }
  .bus-line { height: 44px; margin: 0 14px; border-bottom: 0; border-left: 1px solid var(--cyan); }
  .bus-line i { display: none; }
  .bus-line span { left: 10px; top: 9px; bottom: auto; }
  .panel-foot { flex-wrap: wrap; }
  .intro-grid { grid-template-columns: 1fr; }
  .section-note { grid-column: auto; }
  .tech-intro { padding: 68px 0 75px; }
  .section-head { display: block; margin-bottom: 31px; }
  .section-head > p { margin-top: 20px; }
  .products { padding-bottom: 78px; }
  .product-content { grid-template-columns: 1fr; padding: 25px 22px 28px; }
  .product-no { display: none; }
  .product-card figure { aspect-ratio: 1.22; }
  .ethercat-detail, .applications, .pathway, .about, .international, .contact { padding-block: 78px; }
  .layer-stack { padding-left: 16px; }
  .layer { grid-template-columns: 1fr; gap: 2px; padding: 13px 16px; }
  .layer span { margin-top: 5px; }
  .layer::before { left: -20px; }
  .capability-grid { grid-template-columns: 1fr; margin-top: 58px; }
  .capability { min-height: 0; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .capability h3 { margin-top: 25px; }
  .application-item { grid-template-columns: 60px 1fr; gap: 18px; padding: 24px 0; }
  .application-item p { grid-column: 2; }
  .application-item:hover { padding-inline: 8px; }
  .pathway-steps li { grid-template-columns: 50px 1fr; }
  .about-number { font-size: 4.4rem; }
  .company-facts { grid-template-columns: 1fr; }
  .company-facts div:nth-child(odd), .company-facts div:nth-child(even) { padding-inline: 0; border-left: 0; }
  .international-copy dl div { grid-template-columns: 1fr; gap: 3px; }
  .contact-card { padding: 26px 21px; }
  .contact-card ul { grid-template-columns: 1fr; }
  .footer-main { align-items: flex-start; }
  .footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 28px; }
  .footer-bottom { grid-template-columns: 1fr; gap: 11px; }
  .footer-legal { text-align: left; }
}
@media (max-width: 440px) {
  .footer-main { display: grid; }
}