:root {
  --ink: #0b1215;
  --paper: #f2f4f1;
  --paper-soft: #fbfcfa;
  --line: #d9ddd4;
  --muted: #5f6866;
  --teal: #146e68;
  --teal-dark: #0b4c48;
  --amber: #c79a3a;
  --clay: #a8664b;
  --blue: #253d49;
  --white: #ffffff;
  --shadow: 0 22px 70px rgba(12, 20, 22, .14);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper-soft);
  line-height: 1.65;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 221, 212, .86);
  background: rgba(251, 252, 250, .9);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1180px, calc(100% - 36px));
  height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-text {
  display: grid;
  gap: 0;
  line-height: 1.08;
}

.brand-text small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 2px solid var(--ink);
  background: var(--amber);
  display: grid;
  place-items: center;
  color: var(--ink);
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 14px;
  color: #243034;
}

.nav-links a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.nav-links a.active,
.nav-links a:hover {
  border-color: var(--teal);
  color: var(--teal-dark);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lang-link {
  border: 1px solid var(--line);
  padding: 8px 10px;
  font-size: 13px;
  background: var(--white);
}

.menu-toggle {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  font-weight: 750;
  line-height: 1.2;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.secondary {
  background: var(--white);
  color: var(--ink);
  border-color: var(--line);
}

.btn.teal {
  background: var(--teal);
  border-color: var(--teal);
}

.hero {
  min-height: 78svh;
  background-size: cover;
  background-position: center;
  color: var(--white);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 15, 17, .86) 0%, rgba(7, 15, 17, .62) 42%, rgba(7, 15, 17, .08) 100%),
    linear-gradient(0deg, rgba(7, 15, 17, .42), rgba(7, 15, 17, .1));
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: rgba(255, 255, 255, .22);
}

.hero-inner {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 72px 0 88px;
  position: relative;
  z-index: 1;
}

.eyebrow {
  color: #f0c85e;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: 0;
  margin: 0;
}

h1 {
  max-width: 850px;
  margin-top: 16px;
  font-size: clamp(42px, 6.4vw, 78px);
  overflow-wrap: anywhere;
}

.title-line {
  display: inline;
}

.copy-line {
  display: inline;
}

.hero-copy {
  max-width: 720px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(18px, 2.3vw, 24px);
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(760px, 100%);
  margin-top: 48px;
  background: rgba(255, 255, 255, .24);
  border: 1px solid rgba(255, 255, 255, .26);
}

.hero-facts div {
  padding: 18px;
  background: rgba(9, 17, 20, .5);
  backdrop-filter: blur(8px);
}

.hero-facts strong {
  display: block;
  font-size: 20px;
}

.hero-facts span {
  color: rgba(255, 255, 255, .76);
  font-size: 13px;
}

.section {
  padding: 84px 0;
}

.section.alt {
  background: var(--paper);
}

.container {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.section-head {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-head h2,
.page-title h1 {
  font-size: clamp(32px, 4.4vw, 56px);
}

.section-head p,
.page-title p {
  color: var(--muted);
  font-size: 18px;
  margin: 16px 0 0;
}

.grid {
  display: grid;
  gap: 22px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 8px 32px rgba(20, 28, 31, .045);
}

a.card {
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

a.card:hover {
  transform: translateY(-3px);
  border-color: rgba(20, 110, 104, .35);
  box-shadow: 0 18px 46px rgba(20, 28, 31, .08);
}

.card h3 {
  font-size: 22px;
}

.card p {
  margin: 12px 0 0;
  color: var(--muted);
}

.section-note {
  max-width: 900px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 34px;
  border: 1px solid rgba(255, 255, 255, .26);
  background: rgba(255, 255, 255, .22);
}

.trust-strip.light {
  border-color: var(--line);
  background: var(--line);
}

.trust-strip div {
  min-height: 92px;
  padding: 18px;
  background: rgba(9, 17, 20, .55);
  color: var(--white);
}

.trust-strip.light div {
  background: var(--white);
  color: var(--ink);
}

.trust-strip strong {
  display: block;
  font-size: 16px;
  line-height: 1.25;
}

.trust-strip span {
  display: block;
  margin-top: 7px;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
  line-height: 1.45;
}

.trust-strip.light span {
  color: var(--muted);
}

.platform-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.platform-node {
  position: relative;
  min-height: 210px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 22px;
  box-shadow: 0 8px 32px rgba(20, 28, 31, .045);
}

.platform-node::before {
  content: attr(data-step);
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 18px;
  background: var(--teal);
  color: var(--white);
  font-weight: 900;
}

.platform-node:nth-child(2)::before,
.platform-node:nth-child(4)::before {
  background: var(--amber);
  color: var(--ink);
}

.platform-node h3 {
  font-size: 22px;
}

.platform-node p {
  margin: 12px 0 0;
  color: var(--muted);
}

.proof-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.proof-badge {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  border: 1px solid rgba(20, 110, 104, .28);
  border-radius: 999px;
  background: rgba(20, 110, 104, .08);
  color: var(--teal-dark);
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 800;
}

.proof-badge.gold {
  border-color: rgba(199, 154, 58, .44);
  background: rgba(199, 154, 58, .14);
  color: #6f4d05;
}

.preview-label {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin-bottom: 12px;
  background: var(--ink);
  color: var(--white);
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.image-frame .preview-label {
  margin: 0 0 10px;
}

.commitment-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.commitment-row div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 18px;
}

.commitment-row strong {
  display: block;
  color: var(--ink);
}

.commitment-row span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

.content-proof {
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  gap: 22px;
  align-items: stretch;
}

.content-proof .card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.signal-list {
  display: grid;
  gap: 14px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.signal-list li {
  border-left: 4px solid var(--teal);
  background: rgba(20, 110, 104, .07);
  padding: 14px 16px;
  color: #263236;
}

.signal-list li:nth-child(even) {
  border-color: var(--amber);
  background: rgba(199, 154, 58, .12);
}

.table-lite {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  background: var(--white);
}

.table-lite th,
.table-lite td {
  border-bottom: 1px solid var(--line);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.table-lite th {
  background: var(--paper);
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

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

.content-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
}

.content-pill {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 800;
}

.content-pill.active,
.content-pill:hover {
  border-color: rgba(20, 110, 104, .35);
  background: rgba(20, 110, 104, .09);
  color: var(--teal-dark);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.article-card {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

.article-card-media {
  position: relative;
  width: 100%;
  height: 190px;
  flex: 0 0 190px;
  overflow: hidden;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.article-card-image {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  object-fit: cover;
  transition: transform .28s ease;
}

.article-card-readtime {
  position: absolute;
  left: 16px;
  bottom: 12px;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 5px;
  background: rgba(255, 255, 255, .9);
  color: var(--muted);
  padding: 6px 9px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
}

.article-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 24px;
}

.article-card-body > p:not(.article-meta) {
  flex: 1;
}

.article-card:hover .article-card-image {
  transform: scale(1.025);
}

.article-card .tag {
  width: fit-content;
  margin-bottom: 16px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  border: 1px solid rgba(199, 154, 58, .38);
  border-radius: 999px;
  background: rgba(199, 154, 58, .13);
  color: #725107;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.article-meta {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.article-card .btn {
  margin-top: auto;
  width: fit-content;
}

.article-hero {
  padding: 56px 0 52px;
  background:
    linear-gradient(90deg, rgba(20, 110, 104, .1), rgba(199, 154, 58, .08)),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.article-hero .page-title {
  max-width: none;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--teal-dark); }
.breadcrumbs .sep { color: var(--line); }
.breadcrumbs .current { color: var(--ink); font-weight: 600; }

.article-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: 44px;
  align-items: center;
}

.article-hero-grid h1 {
  max-width: none;
  margin-top: 14px;
  font-size: clamp(30px, 3.8vw, 46px);
}

.article-hero-media {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  box-shadow: 0 8px 32px rgba(20, 28, 31, .045);
}

.article-hero-visual {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.article-hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 54%;
}

.article-hero-media figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .82rem;
}

.featured-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  overflow: hidden;
  margin-bottom: 44px;
  padding: 0;
}

.featured-card .featured-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 36px;
}

.featured-card .featured-body h2 {
  margin-top: 14px;
  font-size: clamp(24px, 2.6vw, 32px);
}

.featured-card .featured-body p { margin: 12px 0 0; color: var(--muted); }
.featured-card .featured-body .btn { margin-top: 24px; }

.featured-card .featured-media {
  position: relative;
  min-height: 300px;
  overflow: hidden;
  background: var(--paper);
}

.featured-card .featured-media img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .28s ease;
}

.featured-card:hover .featured-media img { transform: scale(1.02); }

.article-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 18px;
}

.related-grid .article-card h3 { font-size: 18px; line-height: 1.3; }
.related-grid .article-card p { font-size: 14.5px; }

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 216px;
  gap: 36px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 104px;
  display: grid;
  grid-column: 2;
  grid-row: 1;
  gap: 0;
  align-self: start;
  max-height: calc(100svh - 128px);
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 18px 20px;
  counter-reset: toc;
  scrollbar-width: thin;
}

.toc-toggle {
  display: none;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
  text-align: left;
}

.toc-toggle::after {
  content: "+";
  font-size: 18px;
  line-height: 1;
}

.toc.is-open .toc-toggle::after { content: "−"; }

.toc-links {
  display: grid;
  gap: 0;
}

.toc-links::before {
  content: attr(aria-label);
  display: block;
  margin-bottom: 8px;
  color: var(--teal-dark);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.toc-links a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  counter-increment: toc;
  transition: color .15s ease, border-color .15s ease;
}

.toc-links a::before {
  content: counter(toc, decimal-leading-zero);
  flex-shrink: 0;
  color: var(--teal);
  font-size: 11px;
  font-weight: 850;
}

.toc-links a:hover,
.toc-links a.is-current {
  color: var(--teal-dark);
  border-color: rgba(20, 110, 104, .38);
}

.toc-links a.is-current { font-weight: 750; }

.toc-links a.is-current::before { color: var(--amber-dark); }

.article-body {
  display: grid;
  grid-column: 1;
  grid-row: 1;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  min-width: 0;
  font-size: 17px;
  line-height: 1.75;
}

.article-body section[id] { scroll-margin-top: 116px; }

.table-scroll {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  border-radius: 8px;
  -webkit-overflow-scrolling: touch;
}

.table-scroll .table-lite {
  min-width: 680px;
}

.article-body h2 {
  font-size: clamp(24px, 2.4vw, 30px);
}

.article-body h3 { font-size: 19px; }

.article-body figure { margin: 24px 0; }

.article-body figure img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.article-body figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: .85rem;
}

figure.figure-narrow img { max-width: 520px; margin: 0 auto; }
.article-body .source-note { margin: 8px 0 0; color: var(--muted); font-size: .82rem; }
.table-lite td, .table-lite th { vertical-align: top; }

.answer-summary,
.key-facts,
.source-list,
.related-content {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 22px;
}

.answer-summary {
  border-color: rgba(20, 110, 104, .28);
  background: rgba(20, 110, 104, .07);
}

.key-facts ul,
.source-list ul,
.related-content ul {
  margin: 12px 0 0;
}

.category-hero {
  padding: 68px 0 44px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.feature-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 26px;
}

.feature-list li::before {
  content: "";
  position: absolute;
  top: 11px;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--amber);
}

.visual-band {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 36px;
  align-items: center;
}

.image-frame {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 10px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.image-frame img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.image-frame.square img {
  aspect-ratio: 1 / 1;
}

.image-frame.detail img {
  aspect-ratio: 4 / 3;
}

.page-hero {
  padding: 76px 0 56px;
  background:
    linear-gradient(90deg, rgba(20, 110, 104, .08), rgba(199, 154, 58, .07)),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-title {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  gap: 36px;
  align-items: start;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.metric {
  background: var(--white);
  padding: 22px;
}

.metric strong {
  display: block;
  font-size: 28px;
}

.metric span {
  color: var(--muted);
  font-size: 14px;
}

.process {
  counter-reset: step;
  display: grid;
  gap: 16px;
}

.process .step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 18px;
}

.process .step::before {
  content: counter(step);
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  background: var(--teal);
  color: var(--white);
  font-weight: 900;
}

.faq {
  display: grid;
  gap: 12px;
}

.faq details {
  border: 1px solid var(--line);
  background: var(--white);
  padding: 18px 20px;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.faq p {
  color: var(--muted);
  margin: 12px 0 0;
}

.form-panel {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

label {
  display: grid;
  gap: 7px;
  color: #263236;
  font-weight: 700;
  font-size: 14px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cbd2c9;
  background: var(--paper-soft);
  min-height: 44px;
  padding: 11px 12px;
  color: var(--ink);
  font: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(20, 110, 104, .18);
  border-color: var(--teal);
}

textarea {
  min-height: 122px;
  resize: vertical;
}

.full {
  grid-column: 1 / -1;
}

.site-footer {
  background: var(--ink);
  color: var(--white);
  padding: 48px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, minmax(0, .7fr));
  gap: 26px;
}

.footer-brand-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 12px;
  line-height: 1.6;
}

.footer-brand-row a {
  color: rgba(255, 255, 255, .62);
  text-decoration: none;
}

.footer-brand-row span {
  color: rgba(255, 255, 255, .62);
}

.footer-brand-row span:not(:last-child)::after {
  content: "|";
  color: rgba(255, 255, 255, .22);
  margin: 0 10px;
}

.footer-brand-row a:hover {
  color: var(--white);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 26px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .58);
  font-size: 12px;
  line-height: 1.6;
}

.site-footer a,
.site-footer p {
  color: rgba(255, 255, 255, .72);
}

.site-footer .brand-text small {
  color: rgba(255, 255, 255, .58);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.contact-card {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
  padding: 18px;
}

.contact-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.contact-card a,
.contact-card strong {
  display: block;
  margin-top: 6px;
  color: var(--ink);
  font-size: 18px;
}

.inquiry-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.product-gallery {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
  gap: 22px;
  align-items: stretch;
}

.product-gallery .stack {
  display: grid;
  gap: 22px;
}

.footer-contact {
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.language-gate {
  min-height: 100svh;
  display: grid;
  place-items: center;
  background: var(--paper);
  padding: 24px;
}

.gate-panel {
  width: min(760px, 100%);
  border: 1px solid var(--line);
  background: var(--white);
  padding: 42px;
  box-shadow: var(--shadow);
}

.gate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

@media (max-width: 919px) {
  .nav {
    height: auto;
    min-height: 64px;
    align-items: flex-start;
    padding: 14px 0;
  }

  .nav-links {
    display: none;
  }

  .hero-facts,
  .trust-strip,
  .platform-map,
  .commitment-row,
  .content-proof,
  .grid.three,
  .grid.four,
  .metric-strip,
  .footer-grid,
  .visual-band,
  .split,
  .product-gallery {
    grid-template-columns: 1fr;
  }

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

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

  .toc {
    position: static;
    order: -1;
    grid-column: 1;
    grid-row: auto;
    max-height: none;
    overflow: visible;
  }

  .toc-toggle {
    display: flex;
    min-height: 28px;
  }

  .toc-links { display: none; margin-top: 14px; }

  .toc.is-open .toc-links { display: grid; }

  .toc-links::before {
    display: none;
  }

  .toc-links a:first-child {
    border-top: 1px solid var(--line);
  }

  .article-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    min-width: 0;
  }

  .article-body {
    grid-column: 1;
    grid-row: auto;
  }

  .article-body section > .table-lite {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .article-hero-grid,
  .featured-card,
  .related-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .featured-card .featured-media { order: -1; min-height: 240px; }

  .hero {
    min-height: 72svh;
    background-position: 60% center;
  }

  .hero::before {
    background: linear-gradient(90deg, rgba(7, 15, 17, .84), rgba(7, 15, 17, .62));
  }
}

@media (max-width: 520px) {
  .article-grid { grid-template-columns: minmax(0, 1fr); }
  .article-card-media { height: 210px; flex-basis: 210px; }
  .article-card-body { padding: 22px; }
  .featured-card .featured-body { padding: 26px; }
  .nav-actions .btn {
    display: none;
  }

  .hero-inner {
    padding: 52px 0 64px;
  }

  h1 {
    font-size: 32px;
  }

  .title-line {
    display: block;
  }

  .copy-line {
    display: block;
  }

  .hero-copy {
    font-size: 16px;
    word-break: break-all;
  }

  .section {
    padding: 58px 0;
  }

  .gate-panel {
    padding: 28px;
  }
}