:root {
  color-scheme: dark;
  --ink: #07131b;
  --surface: #0d202a;
  --surface-2: #12303b;
  --surface-3: #193b45;
  --warm: #f5f1e8;
  --muted: #b5b8b2;
  --subtle: #7f8b8d;
  --line: #29434b;
  --red: #167d82;
  --red-hot: #25a8a3;
  --red-dark: #0b5259;
  --bronze: #b78a4a;
  --green: #2fb878;
  --amber: #dda63a;
  --max: 1240px;
  --radius: 10px;
  --shadow: 0 22px 65px rgba(0,0,0,.34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--warm);
  background:
    radial-gradient(900px 520px at 85% -10%, rgba(37,168,163,.14), transparent 60%),
    var(--ink);
  font-family: Tahoma, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #54d3cb; outline-offset: 4px; }
.container { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.skip-link { position: fixed; top: 8px; right: 8px; z-index: 1000; transform: translateY(-150%); padding: 8px 14px; background: var(--warm); color: var(--ink); border-radius: 6px; }
.skip-link:focus { transform: translateY(0); }

.prototype-bar {
  min-height: 34px;
  padding: 5px 24px;
  display: flex;
  justify-content: center;
  gap: 18px;
  align-items: center;
  color: #eafafa;
  background: linear-gradient(90deg, #0b4d54, #137b7e 48%, #0b4d54);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .15px;
}
.prototype-note { color: rgba(255,255,255,.72); font-weight: 400; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,.09);
  background: rgba(7,19,27,.9);
  backdrop-filter: blur(18px);
}
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: 174px; }
.brand-mark {
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 1px solid rgba(255,255,255,.25); border-bottom: 3px solid var(--bronze);
  font-weight: 900; font-size: 22px; line-height: 1;
}
.brand-mark img { width: 30px; height: 30px; object-fit: contain; filter: invert(1); }
.brand-type { display: flex; flex-direction: column; line-height: 1.2; direction: ltr; text-align: left; }
.brand-type b { font-family: Arial, sans-serif; font-size: 20px; letter-spacing: 2px; }
.brand-type small { margin-top: 4px; font-size: 10px; color: var(--muted); direction: rtl; }
.main-nav { flex: 1; display: flex; align-items: center; justify-content: center; gap: 24px; }
.main-nav a { position: relative; color: #d7d3cd; font-size: 14px; white-space: nowrap; }
.main-nav a::after { content: ""; position: absolute; right: 0; bottom: -9px; width: 0; height: 2px; background: var(--red-hot); transition: width .2s ease; }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { width: 100%; }
.main-nav a:hover { color: #fff; }
.menu-toggle { display: none; background: transparent; color: #fff; border: 0; padding: 8px; }
.menu-toggle span:not(.sr-only) { display: block; width: 23px; height: 2px; margin: 5px 0; background: currentColor; }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 44px; padding: 9px 18px; border: 1px solid var(--line); border-radius: 6px;
  color: #fff; background: transparent; cursor: pointer; transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.button:hover { transform: translateY(-1px); border-color: #777; }
.button-primary { border-color: var(--red); background: var(--red); box-shadow: 0 9px 32px rgba(22,125,130,.24); }
.button-primary:hover { background: var(--red-hot); border-color: var(--red-hot); }
.button-quiet { color: #ddd8d0; background: rgba(255,255,255,.025); }
.button-arrow::after { content: "←"; font-size: 18px; }

main { min-height: 68vh; }
.page { animation: page-in .36s ease-out both; }
@keyframes page-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.eyebrow { display: flex; align-items: center; gap: 10px; color: #d9a8af; font-size: 12px; font-weight: 700; letter-spacing: .2px; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--red-hot); }
.hero {
  position: relative;
  min-height: 650px;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(255,255,255,.025) 50%, transparent 50.2%),
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 100% 100%, 100% 86px;
  mask-image: linear-gradient(to bottom, #000, transparent 88%);
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; align-items: center; padding-block: 90px; }
.hero h1 { max-width: 850px; margin: 20px 0 22px; font-size: clamp(42px, 6.3vw, 86px); line-height: 1.12; letter-spacing: -2.5px; }
.hero h1 em { display: block; color: var(--red-hot); font-style: normal; }
.hero-lead { max-width: 680px; margin: 0; color: #c3beb6; font-size: clamp(17px, 2vw, 21px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-facts { margin-top: 42px; display: flex; flex-wrap: wrap; gap: 12px 26px; color: var(--muted); font-size: 13px; }
.hero-facts span { display: inline-flex; align-items: center; gap: 8px; }
.hero-facts i { width: 6px; height: 6px; border-radius: 50%; background: var(--red-hot); box-shadow: 0 0 14px var(--red-hot); }

.hero-media { position: relative; margin: 0; min-height: 470px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(7,19,27,.9)); pointer-events: none; }
.hero-media img { width: 100%; height: 100%; min-height: 470px; object-fit: cover; display: block; }
.hero-media figcaption { position: absolute; z-index: 2; right: 24px; bottom: 20px; left: 24px; display: flex; justify-content: space-between; align-items: end; gap: 16px; }
.hero-media figcaption b { font-size: 18px; }
.hero-media figcaption span { color: #bfe8e5; font-size: 12px; }

.stage-diagram { position: relative; min-height: 400px; display: grid; place-items: center; }
.stage-frame { position: relative; width: min(100%, 430px); aspect-ratio: 1.05; border: 1px solid #4a4a4f; border-top: 5px solid var(--red); box-shadow: inset 0 0 60px rgba(181,9,32,.06), var(--shadow); }
.stage-frame::before, .stage-frame::after { content: ""; position: absolute; top: 12%; bottom: 9%; width: 12px; background: repeating-linear-gradient(to bottom, rgba(227,19,50,.7) 0 3px, transparent 3px 15px); }
.stage-frame::before { right: 13%; }
.stage-frame::after { left: 13%; }
.screen { position: absolute; top: 21%; right: 24%; left: 24%; height: 29%; border: 1px solid #9b9b9f; background: linear-gradient(145deg,#202126,#0e0f11); }
.screen::after { content: "PLAN / AUDIO / LIGHT / CONTROL"; position: absolute; inset: 0; display: grid; place-items: center; color: #666; direction: ltr; font: 9px Arial,sans-serif; letter-spacing: 1.5px; }
.seat-lines { position: absolute; right: 18%; left: 18%; bottom: 10%; height: 31%; transform: perspective(380px) rotateX(58deg); transform-origin: bottom; background: repeating-linear-gradient(to bottom, transparent 0 14px, rgba(244,240,232,.16) 15px 17px); }
.orbit { position: absolute; width: 108%; aspect-ratio: 1; border-radius: 50%; border: 1px dashed rgba(227,19,50,.25); animation: orbit 24s linear infinite; }
.orbit::after { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; top: 11%; left: 17%; background: var(--red-hot); box-shadow: 0 0 20px var(--red-hot); }
@keyframes orbit { to { transform: rotate(360deg); } }

.section { padding-block: 92px; border-bottom: 1px solid var(--line); }
.section-tight { padding-block: 58px; }
.section-head { display: grid; grid-template-columns: .72fr 1.28fr; gap: 60px; align-items: end; margin-bottom: 48px; }
.section-head h2, .page-title h1 { margin: 9px 0 0; font-size: clamp(31px, 4.6vw, 56px); line-height: 1.18; letter-spacing: -1px; }
.section-head p { margin: 0; max-width: 700px; color: var(--muted); }
.section-kicker { color: var(--red-hot); font-size: 12px; font-weight: 800; }

.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.path-card { min-height: 260px; padding: 30px; display: flex; flex-direction: column; background: var(--surface); transition: background .2s ease; }
.path-card:hover { background: var(--surface-2); }
.path-card .index { color: var(--red-hot); font: 12px Arial,sans-serif; letter-spacing: 1px; }
.path-card h3 { margin: auto 0 11px; font-size: 23px; }
.path-card p { margin: 0 0 24px; color: var(--muted); font-size: 14px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: #fff; font-size: 13px; font-weight: 700; }
.text-link::after { content: "←"; color: var(--red-hot); font-size: 18px; transition: transform .2s ease; }
.path-card:hover .text-link::after, .text-link:hover::after { transform: translateX(-4px); }

.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: method; }
.method-item { position: relative; padding-top: 64px; border-top: 1px solid #55565b; counter-increment: method; }
.method-item::before { content: "0" counter(method); position: absolute; top: 14px; right: 0; color: var(--red-hot); font: 800 13px Arial,sans-serif; }
.method-item h3 { margin: 0 0 12px; font-size: 19px; }
.method-item p { margin: 0; color: var(--muted); font-size: 14px; }

.proof-band { background: #080809; }
.proof-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.proof-placeholder { position: relative; min-height: 370px; overflow: hidden; border: 1px solid var(--line); background: repeating-linear-gradient(135deg,#101114 0 14px,#0d0e10 14px 28px); }
.proof-placeholder::before { content: ""; position: absolute; inset: 28px; border: 1px solid rgba(255,255,255,.12); }
.placeholder-label { position: absolute; inset: auto 26px 24px; padding: 14px 16px; border-right: 3px solid var(--red); background: rgba(5,5,6,.84); color: var(--muted); font-size: 12px; }
.proof-copy h2 { margin: 15px 0 22px; font-size: clamp(32px, 4vw, 52px); line-height: 1.2; }
.proof-copy p { color: var(--muted); }
.project-collage { position: relative; min-height: 430px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; overflow: hidden; }
.project-collage img { width: 100%; height: 430px; object-fit: cover; }
.project-collage span { position: absolute; right: 18px; bottom: 18px; padding: 10px 14px; border-right: 3px solid var(--bronze); background: rgba(7,19,27,.88); font-size: 12px; }
.proof-list { margin: 30px 0; padding: 0; list-style: none; }
.proof-list li { padding: 13px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; }
.proof-list span { color: var(--muted); }

.knowledge-strip { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.knowledge-list { border-top: 1px solid var(--line); }
.knowledge-item { display: grid; grid-template-columns: 110px 1fr 26px; gap: 20px; align-items: center; padding: 22px 0; border-bottom: 1px solid var(--line); }
.knowledge-item small { color: var(--red-hot); }
.knowledge-item strong { font-size: 18px; }
.knowledge-item i { font-style: normal; color: var(--muted); }

.page-hero { padding-block: 58px 68px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(37,168,163,.1), transparent 62%); }
.breadcrumb { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-bottom: 38px; color: var(--subtle); font-size: 12px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span:not(:last-child)::after, .breadcrumb a::after { content: "/"; margin-right: 7px; color: #47484d; }
.breadcrumb [aria-current="page"] { color: #c8c4bd; }
.page-title { max-width: 900px; }
.page-title p { max-width: 760px; color: #bbb6ae; font-size: 18px; }
.status-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 25px; }
.status-badge { display: inline-flex; align-items: center; gap: 7px; min-height: 29px; padding: 4px 10px; border: 1px solid var(--line); border-radius: 30px; color: #c9c5bf; font-size: 11px; }
.status-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.status-badge.verified::before { background: var(--green); }

.content-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 58px; align-items: start; }
.content-main h2 { margin: 0 0 20px; font-size: 30px; }
.content-main h3 { margin: 32px 0 10px; font-size: 21px; }
.content-main p { color: #bbb6ae; }
.content-main > section + section { margin-top: 68px; padding-top: 52px; border-top: 1px solid var(--line); }
.side-panel { position: sticky; top: 110px; padding: 24px; border: 1px solid var(--line); background: var(--surface); }
.side-panel h2 { margin: 0 0 16px; font-size: 16px; }
.side-panel a { display: block; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.07); color: #c9c4bd; font-size: 13px; }
.side-panel a:hover { color: #fff; }
.side-panel .button { margin-top: 20px; }

.issue-list, .plain-list { margin: 0; padding: 0; list-style: none; }
.issue-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.issue-list li { padding: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.018); color: #d3cec6; }
.issue-list li::before { content: "—"; margin-left: 8px; color: var(--red-hot); }
.plain-list li { position: relative; padding: 8px 21px 8px 0; color: #c7c2bb; }
.plain-list li::before { content: ""; position: absolute; top: 20px; right: 0; width: 7px; height: 2px; background: var(--red-hot); }

.relation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.relation-card { padding: 22px; border: 1px solid var(--line); background: var(--surface); }
.relation-card small { color: var(--red-hot); }
.relation-card h3 { margin: 8px 0; font-size: 18px; }
.relation-card p { margin: 0; color: var(--muted); font-size: 13px; }

.spec-table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.spec-table th, .spec-table td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: right; vertical-align: top; }
.spec-table th { width: 33%; color: var(--muted); font-weight: 400; }
.spec-table td { color: #e2ded7; }
.ltr { direction: ltr; unicode-bidi: isolate; display: inline-block; font-family: Arial,sans-serif; }

.notice { margin: 24px 0; padding: 18px 20px; border: 1px solid #5c4b28; border-right: 4px solid var(--amber); background: rgba(221,166,58,.07); color: #ded4bd; font-size: 13px; }
.notice.red { border-color: #23555a; border-right-color: var(--red-hot); background: rgba(37,168,163,.08); color: #d8f1ef; }
.external-box { margin-top: 34px; padding: 25px; display: flex; justify-content: space-between; gap: 20px; align-items: center; border: 1px solid #25555c; background: linear-gradient(100deg, rgba(37,168,163,.14), rgba(37,168,163,.025)); }
.external-box h3 { margin: 0 0 6px; }
.external-box p { margin: 0; font-size: 13px; color: var(--muted); }
.disabled-link { opacity: .55; cursor: not-allowed; }

.project-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.project-card { border: 1px solid var(--line); background: var(--surface); overflow: hidden; }
.project-visual { min-height: 210px; position: relative; background: repeating-linear-gradient(135deg,#16171a 0 12px,#111215 12px 24px); border-bottom: 1px solid var(--line); }
.project-visual::before { content: ""; position: absolute; inset: 22px; border: 1px solid rgba(255,255,255,.09); }
.project-visual span { position: absolute; right: 22px; bottom: 18px; left: 22px; padding: 10px 13px; color: #a9a49d; background: rgba(5,5,6,.86); font-size: 11px; }
.project-visual.image { min-height: 260px; }
.project-visual.image::before { display: none; }
.project-visual.image img { width: 100%; height: 260px; object-fit: cover; display: block; transition: transform .45s ease; }
.project-card:hover .project-visual.image img { transform: scale(1.025); }
.project-body { padding: 24px; }
.project-body small { color: var(--red-hot); }
.project-body h2, .project-body h3 { margin: 8px 0; font-size: 22px; }
.project-body p { color: var(--muted); font-size: 14px; }

.video-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.video-grid article { overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.video-grid video { width: 100%; aspect-ratio: 16/9; display: block; background: #041017; object-fit: cover; }
.video-grid h3 { margin: 0; padding: 17px 19px; font-size: 16px; }

.case-timeline { position: relative; margin: 34px 0; padding-right: 34px; }
.case-timeline::before { content: ""; position: absolute; top: 10px; bottom: 10px; right: 8px; width: 1px; background: #55565b; }
.case-step { position: relative; padding-bottom: 28px; }
.case-step::before { content: ""; position: absolute; top: 8px; right: -30px; width: 9px; height: 9px; border-radius: 50%; background: var(--red-hot); box-shadow: 0 0 0 5px var(--surface); }
.case-step h3 { margin: 0 0 5px; }
.case-step p { margin: 0; }

.guide-map { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--line); background: var(--line); gap: 1px; }
.guide-node { min-height: 190px; padding: 20px; background: var(--surface); }
.guide-node b { display: block; color: var(--red-hot); font: 12px Arial,sans-serif; }
.guide-node h3 { margin: 28px 0 8px; font-size: 17px; }
.guide-node p { margin: 0; color: var(--muted); font-size: 12px; }

.sitemap { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.sitemap section { padding: 22px; border-top: 3px solid var(--red); background: var(--surface); }
.sitemap h2 { margin: 0 0 13px; font-size: 18px; }
.sitemap a, .sitemap span { display: block; padding: 5px 0; color: var(--muted); font-size: 13px; }
.sitemap a:hover { color: #fff; }

.contact-panel { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: start; }
.fake-form { padding: 28px; border: 1px solid var(--line); background: var(--surface); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fake-form label { display: block; margin-bottom: 16px; color: #ccc7c0; font-size: 13px; }
.fake-form input, .fake-form select, .fake-form textarea { width: 100%; margin-top: 7px; padding: 12px 13px; border: 1px solid #3b3c41; border-radius: 4px; color: #eee; background: #0a0b0c; }
.fake-form textarea { min-height: 110px; resize: vertical; }
.fake-form .button { width: 100%; }
.contact-details { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-details > * { min-height: 104px; padding: 17px; display: flex; flex-direction: column; justify-content: center; border: 1px solid var(--line); background: var(--surface); }
.contact-details small { margin-bottom: 5px; color: var(--muted); }
.contact-details b { font-size: 15px; }
.map-link { margin-top: 18px; }

.cta-band { padding-block: 64px; background: linear-gradient(90deg, #0b4d54, #167d82 55%, #093b42); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.cta-inner h2 { margin: 0; font-size: clamp(27px,4vw,44px); }
.cta-inner p { margin: 8px 0 0; color: #d2f1ef; }
.cta-inner .button { background: var(--warm); color: #1b0a0d; border-color: var(--warm); }

.site-footer { padding-top: 70px; background: #040d12; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 64px; padding-bottom: 55px; }
.footer-brand p { max-width: 450px; color: var(--muted); }
.brand-static { pointer-events: none; }
.footer-grid h2 { margin: 0 0 17px; color: #e4dfd7; font-size: 14px; }
.footer-grid > div:not(:first-child) a, .placeholder-text { display: block; padding: 5px 0; color: var(--muted); font-size: 13px; }
.footer-grid a:hover { color: #fff; }
.data-state { display: inline-flex; align-items: center; gap: 8px; color: #807c76; font-size: 11px; }
.data-state i { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.data-state.verified i { background: var(--green); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-block: 20px; border-top: 1px solid #202126; color: #6f6c67; font-size: 11px; }
.noscript { padding: 20px; text-align: center; background: var(--red); }

@media (max-width: 1050px) {
  .header-cta { display: none; }
  .main-nav { gap: 17px; }
  .hero-grid { grid-template-columns: 1.1fr .9fr; gap: 30px; }
  .method-grid { grid-template-columns: repeat(2,1fr); }
  .guide-map { grid-template-columns: repeat(3,1fr); }
  .sitemap { grid-template-columns: repeat(3,1fr); }
}

@media (max-width: 800px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .prototype-bar { justify-content: space-between; padding-inline: 14px; }
  .prototype-note { display: none; }
  .header-inner { min-height: 68px; }
  .menu-toggle { display: block; margin-right: auto; }
  .main-nav { display: none; position: absolute; top: 68px; right: 14px; left: 14px; padding: 16px 20px 22px; flex-direction: column; align-items: stretch; gap: 0; border: 1px solid var(--line); background: #09090b; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 11px 0; border-bottom: 1px solid var(--line); }
  .main-nav a::after { display: none; }
  .hero { min-height: auto; }
  .hero-grid, .proof-grid, .section-head, .knowledge-strip, .contact-panel { grid-template-columns: 1fr; }
  .hero-grid { padding-block: 62px 70px; }
  .hero h1 { letter-spacing: -1.5px; }
  .stage-diagram { min-height: 330px; margin-top: 24px; }
  .stage-frame { max-width: 350px; }
  .section { padding-block: 68px; }
  .section-head { gap: 20px; margin-bottom: 34px; }
  .path-grid, .relation-grid { grid-template-columns: 1fr; }
  .path-card { min-height: 220px; }
  .content-grid { grid-template-columns: 1fr; gap: 38px; }
  .side-panel { position: static; }
  .project-list { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .guide-map { grid-template-columns: 1fr 1fr; }
  .sitemap { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 38px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 520px) {
  body { font-size: 15px; }
  .brand { min-width: 0; }
  .brand-type small { display: none; }
  .hero h1 { font-size: 42px; }
  .hero-actions .button { width: 100%; }
  .method-grid, .issue-list, .guide-map, .sitemap, .form-row, .contact-details { grid-template-columns: 1fr; }
  .hero-media, .hero-media img { min-height: 360px; }
  .project-collage { grid-template-columns: 1fr; min-height: 0; }
  .project-collage img { height: 260px; }
  .knowledge-item { grid-template-columns: 80px 1fr 20px; gap: 12px; }
  .external-box, .cta-inner, .footer-bottom { align-items: stretch; flex-direction: column; }
  .external-box .button, .cta-inner .button { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .spec-table, .spec-table tbody, .spec-table tr, .spec-table th, .spec-table td { display: block; width: 100%; }
  .spec-table tr { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .spec-table th, .spec-table td { padding: 3px 0; border: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}