:root {
  color-scheme: dark;
  --bg: #06111f;
  --bg-deep: #030b15;
  --surface: #0a1929;
  --surface-strong: #0d2033;
  --text: #f4f8fb;
  --muted: #a6b5c4;
  --faint: #718397;
  --accent: #35d2c2;
  --accent-strong: #20b9ad;
  --amber: #ffb11b;
  --line: rgba(112, 160, 183, 0.34);
  --line-strong: rgba(75, 213, 200, 0.62);
  --danger: #ff8f8f;
  --body-glow: rgba(23, 98, 116, 0.1);
  --focus-ring: rgba(53, 210, 194, 0.92);
  --nav-text: #e7eef4;
  --control-bg: rgba(6, 17, 31, 0.9);
  --hero-scrim-mid: rgba(6, 17, 31, 0.64);
  --hero-scrim-end: rgba(6, 17, 31, 0);
  --hero-lead: #b8c5d2;
  --accent-soft: rgba(53, 210, 194, 0.08);
  --primary-start: #39cfc1;
  --primary-end: #1eb7b0;
  --primary-hover-start: #50dfd0;
  --primary-hover-end: #2bc4bb;
  --primary-on: #02131a;
  --primary-shadow: rgba(30, 183, 176, 0.2);

  --works-start: rgba(12, 32, 50, 0.56);
  --works-end: rgba(6, 17, 31, 0);
  --project-glow: rgba(46, 206, 191, 0.18);
  --project-ring: rgba(68, 166, 179, 0.15);
  --copy-strong: #d4dee7;
  --ad-border: rgba(178, 198, 213, 0.5);
  --ad-bg: rgba(255, 255, 255, 0.035);
  --ad-text: #7f90a1;
  --footer-text: #d3dee7;
  --copyright-text: #d7e0e8;
  --header-bg: rgba(3, 11, 21, 0.74);
  --breadcrumb-divider: #4f6172;
  --page-hero-glow: rgba(42, 195, 181, 0.12);
  --page-hero-start: rgba(10, 25, 41, 0.7);
  --page-hero-end: rgba(6, 17, 31, 0);
  --notice-bg: rgba(255, 177, 27, 0.06);
  --notice-text: #dfd2b5;
  --table-text: #dce7ee;
  --tag-bg: rgba(255, 255, 255, 0.06);
  --tag-text: #cfe9e6;
  --panel-bg: rgba(10, 25, 41, 0.8);
  --amber-border: rgba(255, 177, 27, 0.45);
  --mobile-nav-bg: rgba(3, 11, 21, 0.98);
  --mobile-hero-mid: rgba(6, 17, 31, 0.9);
  --mobile-hero-end: rgba(6, 17, 31, 0.45);
  --max-width: 1360px;
  --content-width: 1180px;
  --radius: 18px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.28);
  --font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f4f9ff;
  --bg-deep: #e8f3fc;
  --surface: #ffffff;
  --surface-strong: #eaf4fb;
  --text: #102a43;
  --muted: #4c6478;
  --faint: #5f7588;
  --accent: #087f78;
  --accent-strong: #066c66;
  --amber: #9a5d00;
  --line: rgba(42, 91, 122, 0.22);
  --line-strong: rgba(8, 127, 120, 0.48);
  --danger: #b42318;
  --body-glow: rgba(66, 153, 184, 0.13);
  --focus-ring: rgba(8, 127, 120, 0.78);
  --nav-text: #173750;
  --control-bg: rgba(255, 255, 255, 0.88);
  --hero-scrim-mid: rgba(244, 249, 255, 0.86);
  --hero-scrim-end: rgba(244, 249, 255, 0.12);
  --hero-lead: #415c72;
  --accent-soft: rgba(8, 127, 120, 0.09);
  --primary-start: #0e817a;
  --primary-end: #087f78;
  --primary-hover-start: #0b756f;
  --primary-hover-end: #066c66;
  --primary-on: #ffffff;
  --primary-shadow: rgba(8, 127, 120, 0.2);
  --works-start: rgba(224, 240, 251, 0.88);
  --works-end: rgba(244, 249, 255, 0);
  --project-glow: rgba(8, 127, 120, 0.12);
  --project-ring: rgba(42, 132, 151, 0.14);
  --copy-strong: #29475f;
  --ad-border: rgba(42, 91, 122, 0.34);
  --ad-bg: rgba(255, 255, 255, 0.58);
  --ad-text: #597184;
  --footer-text: #36536a;
  --copyright-text: #405c71;
  --header-bg: rgba(244, 249, 255, 0.86);
  --breadcrumb-divider: #6a8194;
  --page-hero-glow: rgba(8, 127, 120, 0.1);
  --page-hero-start: rgba(226, 241, 252, 0.84);
  --page-hero-end: rgba(244, 249, 255, 0);
  --notice-bg: rgba(154, 93, 0, 0.08);
  --notice-text: #684100;
  --table-text: #29475f;
  --tag-bg: rgba(8, 127, 120, 0.08);
  --tag-text: #175c59;
  --panel-bg: rgba(255, 255, 255, 0.76);
  --amber-border: rgba(154, 93, 0, 0.38);
  --mobile-nav-bg: rgba(244, 249, 255, 0.98);
  --mobile-hero-mid: rgba(244, 249, 255, 0.94);
  --mobile-hero-end: rgba(244, 249, 255, 0.64);
  --shadow: 0 24px 70px rgba(31, 75, 108, 0.14);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 72% 12%, var(--body-glow), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

code {
  overflow-wrap: anywhere;
  word-break: break-word;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--text);
  color: var(--bg);
  transform: translateY(-160%);
}

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

.site-shell {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.content-shell {
  width: min(calc(100% - 48px), var(--content-width));
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 20;
  min-height: 100px;
  display: flex;
  align-items: center;
}

.site-header__inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 32px;
}

.brand {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: clamp(1.35rem, 2vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand__mark {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 4px 12px rgba(4, 31, 76, 0.2));
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(24px, 4vw, 64px);
}

.site-nav a {
  position: relative;
  padding: 10px 2px;
  color: var(--nav-text);
  font-weight: 700;
  font-size: 1rem;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
}

.theme-toggle {
  min-width: 92px;
  min-height: 46px;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--control-bg);
  color: var(--nav-text);
  box-shadow: 0 8px 26px rgba(12, 45, 66, 0.08);
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  touch-action: manipulation;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.theme-toggle:hover {
  border-color: var(--line-strong);
  background: var(--surface-strong);
  box-shadow: 0 10px 30px rgba(12, 45, 66, 0.12);
}

.theme-toggle:active {
  transform: translateY(1px);
}

.theme-toggle__icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}

.theme-toggle__icon--moon {
  display: none;
}

html[data-theme="light"] .theme-toggle__icon--sun {
  display: none;
}

html[data-theme="light"] .theme-toggle__icon--moon {
  display: block;
}

html[data-theme="light"] .hero::after {
  opacity: 0.2;
  filter: saturate(0.72) brightness(1.16);
  mix-blend-mode: multiply;
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--control-bg);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  border-radius: 2px;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: calc(100vh - 100px);
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -2;
  inset: -4% -6% 0 33%;
  background: url("/assets/images/hero-signal.png") center right / cover no-repeat;
  opacity: 0.9;
  pointer-events: none;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, var(--bg) 0%, var(--bg) 38%, var(--hero-scrim-mid) 58%, var(--hero-scrim-end) 82%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__content {
  width: min(82%, 1020px);
  padding: 72px 0 150px;
}

.hero h1 {
  max-width: 930px;
  margin: 0;
  font-size: clamp(3.2rem, 5.8vw, 6.2rem);
  line-height: 1.08;
  letter-spacing: -0.065em;
  text-wrap: balance;
}

.hero__lead {
  max-width: 740px;
  margin: 34px 0 0;
  color: var(--hero-lead);
  font-size: clamp(1.08rem, 1.6vw, 1.48rem);
  line-height: 1.85;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 40px;
}

.button {
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 0 30px;
  border: 1px solid var(--accent);
  border-radius: 9px;
  background: transparent;
  color: var(--accent);
  font-weight: 800;
  font-size: 1.06rem;
  cursor: pointer;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.button::after {
  content: "→";
  font-size: 1.35em;
  line-height: 1;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--accent-soft);
}

.button--primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
  color: var(--primary-on);
  box-shadow: 0 12px 36px var(--primary-shadow);
}

.button--primary:hover {
  background: linear-gradient(135deg, var(--primary-hover-start), var(--primary-hover-end));
}

.button--small {
  min-height: 50px;
  padding-inline: 24px;
  font-size: 1rem;
}

.section {
  position: relative;
  padding: clamp(96px, 12vw, 180px) 0;
}

.section-heading {
  margin: 0;
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1.12;
  letter-spacing: -0.055em;
}

.section-intro {
  max-width: 720px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
}

.works {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--works-start), var(--works-end));
}

.project {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: clamp(58px, 8vw, 120px);
  align-items: center;
  padding: clamp(72px, 9vw, 130px) 0;
  border-bottom: 1px solid var(--line);
}

.project--reverse .project__media {
  order: -1;
}

.project__number {
  display: block;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 2.1rem;
  font-weight: 500;
  line-height: 1;
}

.project__name {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
}

.project h3 {
  max-width: 650px;
  margin: 0;
  font-size: clamp(2.15rem, 4vw, 4rem);
  line-height: 1.22;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.project__description {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.22rem);
}

.project .button {
  margin-top: 34px;
}

.project__media {
  position: relative;
}

.project__media img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.project__media--icon {
  display: grid;
  place-items: center;
  min-height: 520px;
  background:
    radial-gradient(circle, var(--project-glow), transparent 55%),
    repeating-radial-gradient(circle, var(--project-ring) 0 1px, transparent 1px 42px);
}

.project__media--icon img {
  width: min(72%, 420px);
  border-radius: 24%;
}

.about {
  padding-bottom: 90px;
}

.about__intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(60px, 10vw, 150px);
  align-items: start;
  padding-bottom: 90px;
  border-bottom: 1px solid var(--line-strong);
}

.about__title-mark {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.about__title-mark span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
}

.about__title-mark span:nth-child(2) { width: 4px; height: 40px; }
.about__title-mark span:nth-child(3) { width: 4px; height: 19px; background: var(--amber); }
.about__title-mark span:nth-child(4) { width: 4px; height: 31px; }
.about__title-mark span:nth-child(5) { width: 10px; height: 10px; }

.about__copy {
  margin: 0;
  color: var(--copy-strong);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 2;
}

.principles {
  padding: 70px 0;
  border-bottom: 1px solid var(--line-strong);
}

.principles h3,
.contact h3 {
  margin: 0 0 34px;
  font-size: clamp(1.75rem, 3vw, 2.65rem);
  letter-spacing: -0.035em;
}

.principles__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.principle {
  min-height: 230px;
  padding: 6px 42px;
  border-left: 1px solid var(--line-strong);
}

.principle:first-child {
  padding-left: 0;
  border-left: 0;
}

.principle__number {
  color: var(--accent);
  font-size: 3rem;
  line-height: 1;
}

.principle h4 {
  margin: 24px 0 12px;
  font-size: clamp(1.35rem, 2vw, 1.9rem);
}

.principle p {
  margin: 0;
  color: var(--muted);
}

.contact {
  padding: 60px 0 42px;
}

.contact p {
  max-width: 680px;
  margin: -14px 0 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.ad-reservation {
  width: min(calc(100% - 48px), 1180px);
  min-height: 170px;
  margin: 70px auto 40px;
  display: grid;
  place-items: center;
  border: 1px dashed var(--ad-border);
  background: var(--ad-bg);
  color: var(--ad-text);
}

.ad-reservation small {
  letter-spacing: 0.08em;
}

.site-footer {
  padding: 42px 0 28px;
  border-top: 1px solid var(--line-strong);
}

.site-footer__main {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: flex-start;
}

.site-footer__brand {
  color: var(--accent);
  font-size: 2rem;
  font-weight: 800;
}

.site-footer__tagline {
  margin: 4px 0 0;
  color: var(--footer-text);
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 0;
}

.site-footer__nav a {
  padding: 4px 28px;
  border-left: 1px solid var(--line-strong);
  color: var(--accent);
}

.site-footer__nav a:first-child {
  border-left: 0;
}

.site-footer__copyright {
  margin: 28px 0 0;
  text-align: center;
  color: var(--copyright-text);
}

/* Product and information pages */
.product-header {
  border-bottom: 1px solid var(--line);
  background: var(--header-bg);
  backdrop-filter: blur(18px);
}

.product-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.product-brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.product-nav {
  gap: 30px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 32px;
  color: var(--faint);
  font-size: 0.92rem;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb span + span::before,
.breadcrumb a + span::before {
  content: "/";
  margin-right: 10px;
  color: var(--breadcrumb-divider);
}

.page-hero {
  padding: clamp(70px, 10vw, 140px) 0 clamp(72px, 9vw, 120px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 78% 45%, var(--page-hero-glow), transparent 25rem),
    linear-gradient(180deg, var(--page-hero-start), var(--page-hero-end));
}

.page-hero__grid {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 440px);
  gap: clamp(48px, 9vw, 120px);
  align-items: center;
}

.page-hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(3rem, 6.5vw, 6rem);
  line-height: 1.1;
  letter-spacing: -0.06em;
}

.page-hero__lead {
  max-width: 760px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
}

.page-hero__image {
  width: min(100%, 380px);
  margin-inline: auto;
  border-radius: 24%;
  box-shadow: var(--shadow);
}

.status-note {
  margin-top: 34px;
  padding: 18px 22px;
  border-left: 3px solid var(--amber);
  background: var(--notice-bg);
  color: var(--notice-text);
}

.content-section {
  padding: clamp(72px, 9vw, 118px) 0;
  border-bottom: 1px solid var(--line);
}

.content-section h2 {
  margin: 0 0 26px;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.content-section h3 {
  margin: 40px 0 14px;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
}

.content-section p,
.content-section li {
  color: var(--muted);
}

.content-section a:not(.button) {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.feature-rails {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 44px;
  border-top: 1px solid var(--line);
}

.feature-rail {
  padding: 38px 44px 38px 0;
  border-bottom: 1px solid var(--line);
}

.feature-rail:nth-child(even) {
  padding-left: 44px;
  border-left: 1px solid var(--line);
}

.feature-rail h3 {
  margin-top: 0;
}

.feature-rail ul {
  margin: 0;
  padding-left: 1.2rem;
}

.steps {
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  counter-increment: steps;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.steps li::before {
  content: counter(steps, decimal-leading-zero);
  color: var(--accent);
  font-size: 1.65rem;
  line-height: 1.2;
}

.facts {
  width: 100%;
  border-collapse: collapse;
  margin-top: 34px;
}

.facts th,
.facts td {
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.facts th {
  width: 30%;
  color: var(--table-text);
}

.facts td {
  color: var(--muted);
}

.hash {
  word-break: break-all;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.9rem;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq summary {
  padding: 24px 0;
  color: var(--text);
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
}

.faq details p,
.faq details ul {
  margin-top: 0;
  padding-bottom: 24px;
}

.policy {
  max-width: 860px;
}

.policy h2 {
  margin-top: 70px;
  font-size: clamp(1.65rem, 3vw, 2.5rem);
}

.policy h2:first-of-type {
  margin-top: 0;
}

.policy code {
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--tag-bg);
  color: var(--tag-text);
}

.callout {
  margin: 32px 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel-bg);
}

.callout--warning {
  border-color: var(--amber-border);
}

.callout strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

@media (max-width: 980px) {
  .hero__content {
    width: 76%;
  }

  .project,
  .about__intro,
  .page-hero__grid {
    grid-template-columns: 1fr;
  }

  .project--reverse .project__media {
    order: 0;
  }

  .project__media--icon {
    min-height: 420px;
  }

  .about__intro {
    gap: 44px;
  }

  .principle {
    padding-inline: 28px;
  }
}

@media (min-width: 761px) and (max-width: 1100px) {
  .section {
    padding-block: 80px;
  }

  .about {
    padding-bottom: 64px;
  }

  .about__intro {
    padding-bottom: 56px;
  }

  .principles {
    padding-block: 48px;
  }

  .principle {
    min-height: 190px;
    padding-inline: 28px;
  }

  .contact {
    padding-block: 44px 24px;
  }

  .ad-reservation {
    margin-block: 48px 32px;
  }

  .site-footer {
    padding-block: 36px;
  }
}

@media (max-width: 760px) {
  .site-shell,
  .content-shell {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .site-header {
    min-height: 80px;
  }

  .site-header__inner {
    gap: 12px;
  }

  .theme-toggle {
    min-width: 46px;
    width: 46px;
    padding: 0;
  }

  .theme-toggle span {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 80px 16px auto;
    display: grid;
    gap: 4px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--mobile-nav-bg);
    box-shadow: var(--shadow);
    transform: translateY(-18px);
    opacity: 0;
    pointer-events: none;
    transition: transform 180ms ease, opacity 180ms ease;
  }

  .site-nav[data-open="true"] {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 13px 12px;
  }

  .hero {
    min-height: auto;
  }

  .hero::after {
    inset: 20% -46% auto 15%;
    height: 460px;
    opacity: 0.5;
  }

  .hero::before {
    background: linear-gradient(180deg, var(--bg) 0%, var(--mobile-hero-mid) 58%, var(--mobile-hero-end) 100%);
  }

  .hero__content {
    width: 100%;
    padding: 90px 0 120px;
  }

  .hero h1 {
    font-size: clamp(3rem, 14vw, 4.6rem);
  }

  .actions {
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .project {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .project__media--icon {
    min-height: 340px;
  }

  .project__media--icon img {
    width: min(70%, 280px);
  }

  .principles__list {
    grid-template-columns: 1fr;
  }

  .principle,
  .principle:first-child {
    min-height: auto;
    padding: 28px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .site-footer__main {
    display: grid;
  }

  .site-footer__nav {
    justify-content: flex-start;
  }

  .site-footer__nav a {
    padding-inline: 16px;
  }

  .site-footer__nav a:first-child {
    padding-left: 0;
  }

  .feature-rails {
    grid-template-columns: 1fr;
  }

  .feature-rail,
  .feature-rail:nth-child(even) {
    padding: 30px 0;
    border-left: 0;
  }

  .facts,
  .facts tbody,
  .facts tr,
  .facts th,
  .facts td {
    display: block;
    width: 100%;
  }

  .facts tr {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }

  .facts th,
  .facts td {
    padding: 4px 0;
    border: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}














/* Site-wide privacy consent */
.footer-link-button{padding:0;border:0;background:transparent;color:inherit;font:inherit;cursor:pointer}.footer-link-button:hover{color:var(--accent,var(--color-primary,#35d2c2))}.consent-banner{position:fixed;z-index:10000;right:24px;bottom:24px;left:24px;width:min(920px,calc(100% - 48px));margin-inline:auto;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;padding:22px 24px;border:1px solid var(--line-strong,var(--border-color,#35d2c2));border-radius:16px;background:var(--surface,var(--bg-card,#0a1929));color:var(--text,var(--text-main,#f4f8fb));box-shadow:0 24px 70px rgba(0,0,0,.38);opacity:0;transform:translateY(18px);transition:opacity .18s ease,transform .18s ease}.consent-banner.is-visible{opacity:1;transform:translateY(0)}.consent-banner h2{margin:0 0 6px;font-size:1.1rem;line-height:1.4}.consent-banner p{margin:0;color:var(--muted,var(--text-secondary,#a6b5c4));font-size:.94rem;line-height:1.7}.consent-banner p a{color:var(--accent,var(--color-primary,#35d2c2));text-decoration:underline;text-underline-offset:3px}.consent-banner__actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}.consent-button{min-height:44px;padding:0 16px;border:1px solid var(--line-strong,var(--border-color,#35d2c2));border-radius:9px;background:transparent;color:var(--accent,var(--color-primary,#35d2c2));font:inherit;font-size:.92rem;font-weight:800;cursor:pointer}.consent-button--primary{border-color:transparent;background:var(--accent,var(--color-primary,#35d2c2));color:var(--primary-on,#02131a)}@media(max-width:720px){.consent-banner{right:12px;bottom:12px;left:12px;width:calc(100% - 24px);grid-template-columns:1fr;gap:16px;padding:18px}.consent-banner__actions,.consent-button{width:100%}}