:root {
  --ink: #111517;
  --deep: #0b0e12;
  --paper: #f3f1ea;
  --paper-deep: #e5e1d6;
  --white: #fffefa;
  --muted: #59616a;
  --line: #c7c8c4;
  --line-dark: #3b434a;
  --blue: #2547b8;
  --blue-dark: #17368c;
  --body: "Aptos", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  --display: "Aptos Display", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --gutter: clamp(20px, 5vw, 88px);
  --header-height: 76px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body.menu-open { overflow: hidden; }

::selection { background: var(--blue); color: var(--white); }

a, button, input, select, textarea { color: inherit; font: inherit; }
a, button { cursor: pointer; }
img, svg { display: block; max-width: 100%; }
figure, h1, h2, h3, p, ol { margin: 0; }

[id] { scroll-margin-top: calc(var(--header-height) + 24px); }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
  box-shadow: 0 0 0 7px rgba(243, 241, 234, .94);
}

button, input, select, textarea { border-radius: 0; }
input, select, textarea { caret-color: var(--blue); }

.skip-link {
  position: fixed;
  z-index: 1000;
  left: 18px;
  top: 14px;
  min-height: 48px;
  padding: 10px 16px;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 180ms ease-out;
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-height);
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto;
  align-items: center;
  gap: 30px;
  padding: 0 var(--gutter);
  border-bottom: 1px solid rgba(243, 241, 234, .26);
  background: rgba(11, 14, 18, .98);
  color: var(--paper);
  transition: background 180ms ease-out, border-color 180ms ease-out;
}

.site-header.is-scrolled { border-color: var(--blue); background: rgba(11, 14, 18, .99); }

.brand {
  width: fit-content;
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--paper);
  text-decoration: none;
}

.brand-mark { width: 44px; height: 44px; flex: 0 0 auto; }
.brand-lockup { display: grid; gap: 1px; line-height: 1.1; }
.brand-lockup strong { font-family: var(--display); font-size: 17px; font-weight: 800; letter-spacing: .04em; }

.brand-lockup small,
.eyebrow,
.section-index,
.micro,
.section-rail,
.hero-index span,
.hero-visual figcaption,
.material-visual figcaption,
.product-meta small,
.product-visual figcaption,
.route-step > span,
.route-visual figcaption,
.field-visual figcaption,
.record-visual .diagram-caption,
.contact-coordinates span,
.site-footer p {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.brand-lockup small { color: #aeb9c8; font-size: 9px; }

.desktop-nav { height: 100%; display: flex; align-items: stretch; }
.desktop-nav a {
  min-width: 94px;
  min-height: 48px;
  display: grid;
  place-items: center;
  border-inline-start: 1px solid rgba(243, 241, 234, .23);
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background 180ms ease-out, color 180ms ease-out;
}
.desktop-nav a:last-child { border-inline-end: 1px solid rgba(243, 241, 234, .23); }
.desktop-nav a:hover, .desktop-nav a[aria-current="true"] { background: var(--blue); color: var(--white); }

.menu-toggle {
  display: none;
  width: 50px;
  height: 50px;
  padding: 10px;
  border: 1px solid rgba(243, 241, 234, .58);
  background: transparent;
  color: var(--paper);
}
.menu-toggle span { display: block; width: 26px; height: 2px; margin: 7px auto; background: currentColor; transition: transform 180ms ease-out; }

.mobile-menu {
  position: fixed;
  z-index: 200;
  inset: 0 0 0 auto;
  width: min(420px, 100%);
  padding: calc(var(--header-height) + 28px) 26px 28px;
  background: var(--deep);
  color: var(--paper);
  transform: translateX(110%);
  transition: transform 240ms ease-out;
  overflow-y: auto;
}
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu-head { display: flex; justify-content: space-between; padding-bottom: 22px; border-bottom: 1px solid var(--line-dark); color: #aeb9c8; }
.mobile-menu nav { display: grid; }
.mobile-menu nav a { min-height: 74px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line-dark); color: var(--paper); text-decoration: none; }
.mobile-menu nav a span { font-size: 21px; font-weight: 800; }
.mobile-menu nav a small { color: #9fa9b2; font-family: var(--mono); font-size: 10px; letter-spacing: .13em; }
.menu-close { min-height: 48px; margin-top: 28px; padding: 10px 16px; border: 1px solid var(--line-dark); background: transparent; color: var(--paper); }
.menu-close:hover { border-color: var(--blue); color: #c7d3ff; }

.hero {
  position: relative;
  min-height: 920px;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  grid-template-rows: 1fr auto;
  gap: 0 clamp(28px, 5vw, 88px);
  padding: calc(var(--header-height) + 70px) var(--gutter) 0;
  background: var(--deep);
  color: var(--paper);
  overflow: hidden;
}

.hero::before, .hero::after { content: ""; position: absolute; pointer-events: none; }
.hero::before { inset: 0 auto 0 35%; width: 1px; background: rgba(243, 241, 234, .17); }
.hero::after { left: 0; right: 0; top: 58%; height: 1px; background: rgba(243, 241, 234, .12); }
.hero-lines { position: absolute; inset: 0; pointer-events: none; opacity: .65; }
.hero-lines span, .hero-lines i, .hero-lines b { position: absolute; display: block; border: 1px solid rgba(243, 241, 234, .15); border-radius: 50%; }
.hero-lines span { width: 46vw; height: 46vw; left: -21vw; top: 27%; }
.hero-lines i { width: 31vw; height: 31vw; right: 16vw; top: -20vw; }
.hero-lines b { width: 14px; height: 14px; left: 35%; top: 58%; border-color: var(--blue); background: var(--blue); }

.hero-copy { position: relative; z-index: 1; align-self: center; padding: 54px 0 96px; }
.eyebrow, .section-index { color: #9eabb6; }
.materials-section .section-index, .route-section .section-index, .contact-section .section-index, .field-copy .section-index { color: var(--blue-dark); }
.eyebrow { display: flex; align-items: center; gap: 14px; }
.eyebrow span { color: var(--blue); }
.hero h1, h2, h3 { font-family: var(--display); letter-spacing: -.035em; }
.hero h1 { max-width: 670px; margin-top: 44px; font-size: clamp(58px, 7.2vw, 126px); line-height: .96; font-weight: 850; }
.hero h1 em, h2 em { color: #8aa3ff; font-style: normal; }
.hero-lead { max-width: 540px; margin-top: 36px; color: #c5ccd2; font-size: clamp(17px, 1.45vw, 22px); line-height: 1.55; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; margin-top: 42px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 14px; padding: 10px 18px; text-decoration: none; font-weight: 800; transition: background 180ms ease-out, color 180ms ease-out, transform 180ms ease-out; }
.button-primary { background: var(--blue); color: var(--white); }
.button-primary:hover { background: #4062d1; transform: translateY(-2px); }
.text-link { min-height: 48px; display: inline-flex; align-items: center; gap: 10px; color: var(--paper); font-weight: 800; text-decoration: none; border-bottom: 1px solid rgba(243, 241, 234, .62); }
.text-link:hover { color: #aebfff; border-color: var(--blue); }
.hero-route { position: relative; width: min(520px, 100%); height: 24px; margin-top: 70px; border-top: 1px solid rgba(243, 241, 234, .45); }
.hero-route span, .hero-route i, .hero-route b, .hero-route em { position: absolute; top: -5px; width: 9px; height: 9px; border: 1px solid var(--paper); background: var(--deep); }
.hero-route span { left: 0; border-color: var(--blue); background: var(--blue); }
.hero-route i { left: 38%; }
.hero-route b { left: 70%; }
.hero-route em { right: 0; border-color: var(--blue); background: var(--blue); }

.hero-visual { position: relative; z-index: 1; align-self: center; min-height: 550px; border: 1px solid rgba(243, 241, 234, .22); }
.hero-visual img { width: 100%; height: 100%; min-height: 550px; object-fit: cover; }
.hero-visual::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(243, 241, 234, .26); pointer-events: none; }
.hero-visual figcaption, .material-visual figcaption, .product-visual figcaption, .route-visual figcaption, .field-visual figcaption { position: absolute; z-index: 1; left: 18px; bottom: 16px; display: flex; gap: 10px; color: var(--white); }
.hero-visual figcaption span, .material-visual figcaption span, .route-visual figcaption span { color: #aebfff; }

.hero-index { grid-column: 1 / -1; position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(243, 241, 234, .32); }
.hero-index div { min-height: 96px; display: grid; align-content: center; gap: 5px; padding: 16px 18px; border-inline-start: 1px solid rgba(243, 241, 234, .22); }
.hero-index div:last-child { border-inline-end: 1px solid rgba(243, 241, 234, .22); }
.hero-index span { color: #9eabb6; }
.hero-index strong { color: var(--paper); font-size: 14px; font-weight: 800; }

.materials-section, .route-section, .contact-section { position: relative; padding: 110px var(--gutter) 124px; background: var(--paper); }
.section-rail { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--line); color: var(--muted); }
.section-rail span:first-child { color: var(--blue); }
.materials-grid { display: grid; grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr); gap: clamp(30px, 7vw, 120px); align-items: center; padding-top: 72px; }
.section-intro h2, .section-heading h2, .route-heading h2, .record-copy h2, .contact-intro h2 { margin-top: 22px; font-size: clamp(46px, 6vw, 92px); line-height: .98; font-weight: 850; }
.section-intro h2 em, .section-heading h2 em, .route-heading h2 em, .record-copy h2 em, .contact-intro h2 em { color: var(--blue); }
.lead-copy { max-width: 560px; margin-top: 32px; color: var(--muted); font-size: 18px; line-height: 1.7; }
.material-note { display: flex; gap: 14px; align-items: flex-start; max-width: 470px; margin-top: 48px; padding-top: 18px; border-top: 2px solid var(--blue); color: var(--muted); }
.note-mark { color: var(--blue); font-size: 27px; line-height: 1; }
.material-visual { position: relative; min-height: 540px; }
.material-visual img { width: 100%; height: 100%; min-height: 540px; object-fit: cover; }
.material-visual::before { content: ""; position: absolute; z-index: 1; inset: 18px; border: 1px solid rgba(17, 21, 23, .35); pointer-events: none; }
.material-visual figcaption { color: var(--ink); }
.material-visual figcaption span { color: var(--blue); }
.material-spectrum { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 78px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.material-spectrum div { min-height: 146px; display: grid; align-content: center; gap: 5px; padding: 20px 22px; border-inline-start: 1px solid var(--line); }
.material-spectrum div:last-child { border-inline-end: 1px solid var(--line); }
.material-spectrum span, .material-spectrum small { color: var(--blue); font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .12em; }
.material-spectrum strong { font-size: 18px; }

.products-section, .record-section { position: relative; padding: 108px var(--gutter) 130px; background: var(--deep); color: var(--paper); }
.dark-rail { border-color: var(--line-dark); color: #aeb9c8; }
.dark-rail span:first-child { color: #aebfff; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); gap: 48px; align-items: end; padding: 66px 0 58px; border-bottom: 2px solid var(--blue); }
.section-heading h2 { color: var(--paper); }
.heading-note { max-width: 420px; color: #aeb9c8; font-size: 17px; line-height: 1.7; }
.product-list { margin-top: 0; }
.product-row { position: relative; display: grid; grid-template-columns: minmax(110px, .3fr) minmax(0, .8fr) minmax(0, 1fr); gap: clamp(22px, 4vw, 70px); align-items: center; min-height: 270px; padding: 40px 0; border-bottom: 1px solid var(--line-dark); }
.product-row:first-child { grid-template-columns: minmax(110px, .3fr) minmax(0, 1.8fr) minmax(0, .4fr); }
.product-row-light { background: var(--paper); color: var(--ink); margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); border-bottom-color: var(--line); }
.product-row-light .product-meta small, .product-row-light .product-meta span { color: var(--blue); }
.product-row-md { padding-bottom: 76px; }
.product-meta { align-self: start; display: grid; gap: 12px; padding-top: 8px; }
.product-meta > span { color: #aebfff; font-family: var(--mono); font-size: 23px; font-weight: 600; }
.product-meta small { color: #8996a1; }
.product-copy h3 { max-width: 440px; font-size: clamp(32px, 4vw, 60px); line-height: 1; font-weight: 850; }
.product-copy p { max-width: 470px; margin-top: 18px; color: #aeb9c8; line-height: 1.7; }
.product-row-light .product-copy p { color: var(--muted); }
.product-copy a { display: inline-flex; gap: 10px; align-items: center; margin-top: 23px; color: #aebfff; font-size: 14px; font-weight: 800; text-decoration: none; border-bottom: 1px solid rgba(174, 191, 255, .45); }
.product-row-light .product-copy a { color: var(--blue); border-color: rgba(37, 71, 184, .45); }
.product-copy a:hover { border-color: currentColor; }
.product-line { position: relative; align-self: stretch; min-height: 150px; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.product-line::before, .product-line::after { content: ""; position: absolute; top: 50%; width: 12px; height: 12px; border: 1px solid var(--blue); background: var(--deep); transform: translateY(-50%); }
.product-line::before { left: 0; }
.product-line::after { right: 0; background: var(--blue); }
.product-visual { position: relative; min-height: 206px; }
.product-visual img { width: 100%; height: 100%; min-height: 206px; object-fit: cover; }
.product-visual::after { content: ""; position: absolute; inset: 12px; border: 1px solid rgba(243, 241, 234, .35); pointer-events: none; }
.product-row-light .product-visual::after { border-color: rgba(17, 21, 23, .35); }
.product-visual figcaption { left: 12px; bottom: 11px; font-size: 9px; }
.product-row-light .product-visual figcaption { color: var(--ink); }

.route-section { padding-top: 108px; }
.route-heading { max-width: 900px; padding: 66px 0 54px; }
.route-heading > p:last-child { max-width: 580px; margin-top: 28px; color: var(--muted); font-size: 18px; }
.route-grid { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr); gap: clamp(28px, 7vw, 110px); padding-top: 20px; }
.route-steps { border-top: 2px solid var(--blue); }
.route-step { display: grid; grid-template-columns: 64px 1fr; gap: 18px; padding: 28px 0 30px; border-bottom: 1px solid var(--line); }
.route-step > span { color: var(--blue); padding-top: 4px; }
.route-step h3 { font-size: 26px; line-height: 1.1; }
.route-step p { max-width: 390px; margin-top: 9px; color: var(--muted); }
.route-visual { position: relative; min-height: 500px; }
.route-visual img { width: 100%; height: 100%; min-height: 500px; object-fit: cover; }
.route-visual::after, .field-visual::after { content: ""; position: absolute; inset: 18px; border: 1px solid rgba(243, 241, 234, .35); pointer-events: none; }
.route-visual figcaption, .field-visual figcaption { left: 18px; bottom: 17px; }
.route-field { display: grid; grid-template-columns: minmax(0, .76fr) minmax(0, 1.24fr); gap: clamp(28px, 7vw, 110px); align-items: center; margin-top: 120px; padding-top: 50px; border-top: 1px solid var(--line); }
.field-copy h3 { margin-top: 18px; font-size: clamp(36px, 4.5vw, 70px); line-height: 1; }
.field-copy > p:last-child { max-width: 430px; margin-top: 28px; color: var(--muted); }
.field-visual { position: relative; min-height: 450px; }
.field-visual img { width: 100%; height: 100%; min-height: 450px; object-fit: cover; }
.field-visual::after { border-color: rgba(17, 21, 23, .32); }
.field-visual figcaption { color: var(--ink); }

.record-section { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(30px, 8vw, 130px); align-items: center; }
.record-visual { position: relative; min-height: 560px; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); color: #aeb9c8; }
.record-visual svg { width: 100%; height: 100%; min-height: 560px; }
.record-visual .diagram-caption { position: absolute; left: 18px; bottom: 18px; color: #aeb9c8; }
.record-visual .diagram-caption b { color: #aebfff; }
.record-copy .section-index { color: #aebfff; }
.record-copy h2 { color: var(--paper); }
.record-copy .lead-copy { color: #aeb9c8; }
.timeline { display: grid; gap: 0; margin-top: 42px; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); }
.timeline li { display: grid; grid-template-columns: 100px 1fr; gap: 24px; padding: 20px 0; border-bottom: 1px solid var(--line-dark); }
.timeline time { color: #aebfff; font-family: var(--mono); font-size: 13px; font-weight: 700; }
.timeline strong { font-size: 17px; }
.timeline p { margin-top: 3px; color: #aeb9c8; font-size: 14px; }
.investment-line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 16px; margin-top: 32px; color: #aeb9c8; }
.investment-line strong { color: var(--paper); font-family: var(--mono); font-size: 28px; }
.investment-line small { font-family: var(--body); font-size: 13px; font-weight: 500; }

.contact-section { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(35px, 8vw, 130px); padding-top: 116px; }
.contact-intro > p:not(.section-index) { max-width: 500px; margin-top: 28px; color: var(--muted); font-size: 18px; }
.contact-coordinates { display: grid; grid-template-columns: 90px 1fr; gap: 8px 16px; margin-top: 50px; padding-top: 18px; border-top: 2px solid var(--blue); }
.contact-coordinates span { color: var(--muted); }
.contact-coordinates a { color: var(--ink); font-weight: 800; text-decoration: none; }
.contact-coordinates a:hover { color: var(--blue); }
.contact-visual { position: relative; min-height: 235px; margin-top: 44px; }
.contact-visual img { width: 100%; height: 100%; min-height: 235px; object-fit: cover; }
.contact-visual::after { content: ""; position: absolute; inset: 12px; border: 1px solid rgba(17, 21, 23, .34); pointer-events: none; }
.contact-visual figcaption { position: absolute; z-index: 1; left: 12px; bottom: 11px; display: flex; gap: 10px; color: var(--ink); font-family: var(--mono); font-size: 9px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.contact-visual figcaption span { color: var(--blue); }
#inquiry-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 20px; align-content: start; padding-top: 20px; border-top: 1px solid var(--line); }
.field { display: grid; gap: 8px; }
.field-wide { grid-column: 1 / -1; }
.field label { color: var(--muted); font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .1em; }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid #aeb2b0; background: var(--white); color: var(--ink); }
.field textarea { min-height: 128px; resize: vertical; }
.field input:hover, .field input:focus, .field select:hover, .field select:focus, .field textarea:hover, .field textarea:focus { border-color: var(--blue); }
.submit-button { min-height: 52px; grid-column: 1 / -1; justify-self: start; display: inline-flex; align-items: center; gap: 14px; padding: 10px 20px; border: 0; background: var(--blue); color: var(--white); font-weight: 800; transition: background 180ms ease-out, transform 180ms ease-out; }
.submit-button:hover { background: var(--blue-dark); transform: translateY(-2px); }
.form-status { min-height: 28px; grid-column: 1 / -1; color: var(--blue-dark); font-size: 14px; }

.site-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; padding: 26px var(--gutter); border-top: 1px solid var(--line); background: var(--paper-deep); color: var(--muted); }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); }
.footer-brand img { width: 32px; height: 32px; }
.footer-brand strong { font-size: 14px; }
.site-footer p { font-size: 9px; }

.reveal { opacity: 1; transform: none; }
.motion-ready .reveal { opacity: 0; transform: translateY(18px); transition: opacity 520ms ease-out, transform 520ms ease-out; }
.motion-ready .reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1120px) {
  .desktop-nav a { min-width: 80px; }
  .hero { min-height: 860px; }
  .hero h1 { font-size: clamp(54px, 7.5vw, 92px); }
  .product-row { grid-template-columns: 100px minmax(0, .95fr) minmax(0, 1.05fr); gap: 28px; }
}

@media (max-width: 900px) {
  .site-header { grid-template-columns: 1fr auto; }
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .hero { min-height: auto; grid-template-columns: 1fr; grid-template-rows: auto auto auto; padding-top: calc(var(--header-height) + 34px); }
  .hero::before { left: 65%; }
  .hero::after { top: 58%; }
  .hero-copy { padding: 46px 0 42px; }
  .hero h1 { max-width: 680px; margin-top: 36px; font-size: clamp(53px, 11vw, 84px); }
  .hero-visual { min-height: min(72vw, 560px); }
  .hero-visual img { min-height: min(72vw, 560px); }
  .hero-index { margin-inline: calc(var(--gutter) * -1); }
  .materials-grid, .route-grid, .route-field, .record-section, .contact-section { grid-template-columns: 1fr; }
  .materials-grid { gap: 48px; }
  .material-visual { min-height: min(68vw, 520px); }
  .material-visual img { min-height: min(68vw, 520px); }
  .section-heading { grid-template-columns: 1fr; gap: 22px; }
  .product-row, .product-row:first-child { grid-template-columns: 92px 1fr; }
  .product-line { grid-column: 2; min-height: 100px; }
  .product-visual { grid-column: 2; }
  .record-visual { min-height: min(72vw, 560px); }
  .record-visual svg { min-height: min(72vw, 560px); }
  .contact-section { gap: 66px; }
}

@media (max-width: 620px) {
  :root { --gutter: 20px; --header-height: 70px; }
  .site-header { height: var(--header-height); padding-inline: var(--gutter); }
  .brand-mark { width: 40px; height: 40px; }
  .brand-lockup strong { font-size: 15px; }
  .hero { padding-top: calc(var(--header-height) + 20px); }
  .hero-copy { padding-bottom: 30px; }
  .eyebrow { align-items: flex-start; flex-direction: column; gap: 5px; }
  .hero h1 { margin-top: 28px; font-size: clamp(47px, 14vw, 70px); }
  .hero-lead { margin-top: 27px; font-size: 17px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 14px; margin-top: 30px; }
  .button, .text-link { width: fit-content; }
  .hero-route { margin-top: 48px; }
  .hero-visual { min-height: 420px; }
  .hero-visual img { min-height: 420px; }
  .hero-index { grid-template-columns: repeat(2, 1fr); }
  .hero-index div { min-height: 82px; padding: 12px; }
  .hero-index strong { font-size: 12px; }
  .materials-section, .route-section, .contact-section { padding-top: 76px; padding-bottom: 88px; }
  .products-section, .record-section { padding-top: 76px; padding-bottom: 92px; }
  .section-rail { font-size: 9px; }
  .materials-grid { padding-top: 46px; }
  .section-intro h2, .section-heading h2, .route-heading h2, .record-copy h2, .contact-intro h2 { font-size: clamp(42px, 12vw, 62px); }
  .lead-copy { font-size: 17px; }
  .material-note { margin-top: 36px; }
  .material-spectrum { grid-template-columns: repeat(2, 1fr); margin-top: 48px; }
  .material-spectrum div { min-height: 112px; padding: 15px 14px; }
  .material-spectrum strong { font-size: 15px; }
  .section-heading { padding-top: 45px; padding-bottom: 38px; }
  .heading-note { font-size: 16px; }
  .product-row, .product-row:first-child { grid-template-columns: 1fr; gap: 18px; min-height: 0; padding: 30px 0 36px; }
  .product-row-light { margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); }
  .product-line, .product-visual { grid-column: auto; }
  .product-line { min-height: 74px; }
  .product-visual, .product-visual img { min-height: 240px; }
  .product-copy h3 { font-size: 40px; }
  .route-heading { padding-top: 45px; padding-bottom: 34px; }
  .route-heading > p:last-child { font-size: 17px; }
  .route-step { grid-template-columns: 42px 1fr; gap: 8px; padding-block: 23px; }
  .route-step h3 { font-size: 22px; }
  .route-step p { font-size: 15px; }
  .route-visual, .route-visual img { min-height: 330px; }
  .route-field { margin-top: 76px; padding-top: 34px; }
  .field-copy h3 { font-size: 44px; }
  .field-visual, .field-visual img { min-height: 300px; }
  .record-section { gap: 46px; }
  .record-visual, .record-visual svg { min-height: 380px; }
  .timeline li { grid-template-columns: 78px 1fr; gap: 14px; }
  .timeline p { font-size: 13px; }
  .investment-line { gap: 6px 10px; }
  .investment-line strong { font-size: 22px; }
  #inquiry-form { grid-template-columns: 1fr; gap: 21px; }
  .field-wide, .submit-button, .form-status { grid-column: auto; }
  .submit-button { justify-self: stretch; justify-content: center; }
  .site-footer { align-items: flex-start; flex-direction: column; padding-block: 23px; }
}

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