:root {
  --green-950: #0b211d;
  --green-900: #12332c;
  --green-800: #1d463d;
  --burgundy-900: #541d25;
  --burgundy-800: #6b2630;
  --ivory: #f4f0e7;
  --paper: #fbf8f1;
  --silver: #c5c8c3;
  --silver-dark: #8f9690;
  --copper: #b47a52;
  --ink: #18201d;
  --line: rgba(24, 32, 29, 0.18);
  --line-light: rgba(244, 240, 231, 0.22);
  --content: 1480px;
  --shadow: 0 28px 80px rgba(11, 33, 29, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--ivory);
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p,
dl,
dd {
  margin-top: 0;
}

h1,
h2,
h3,
strong {
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

:focus-visible {
  outline: 3px solid #e0a36e;
  outline-offset: 4px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 240, 231, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.header-inner {
  width: min(100% - 48px, var(--content));
  min-height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 36px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 13px;
  flex: 0 0 auto;
}

.brand-lockup img,
.footer-brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand-lockup div,
.footer-brand div {
  display: flex;
  flex-direction: column;
}

.brand-lockup strong,
.footer-brand strong {
  color: var(--green-950);
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.08em;
}

.brand-lockup span,
.footer-brand span {
  margin-top: 5px;
  color: #66706a;
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: 0.2em;
}

nav {
  display: flex;
  align-items: stretch;
}

nav a {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 15px;
  color: #45514c;
  font-size: 14px;
  font-weight: 650;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}

nav a::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: -1px;
  height: 3px;
  background: var(--burgundy-800);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--burgundy-800);
  background: rgba(84, 29, 37, 0.04);
}

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

.menu-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  border: 0;
  background: transparent;
  color: var(--green-950);
  font-weight: 700;
  cursor: pointer;
}

.menu-toggle i,
.menu-toggle i::before,
.menu-toggle i::after {
  width: 22px;
  height: 2px;
  display: block;
  background: currentColor;
}

.menu-toggle i {
  position: relative;
}

.menu-toggle i::before,
.menu-toggle i::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle i::before { top: -7px; }
.menu-toggle i::after { top: 7px; }

.hero {
  padding: 28px 24px 0;
  background: var(--ivory);
}

.hero-stage {
  width: min(100%, var(--content));
  min-height: 680px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 78px minmax(0, 1.08fr) minmax(430px, 0.92fr);
  grid-template-rows: minmax(0, 1fr) 112px;
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-rail {
  grid-column: 1;
  grid-row: 1 / -1;
  padding: 26px 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  background: var(--burgundy-900);
  color: var(--paper);
}

.hero-rail span {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.24em;
  font-size: 12px;
  font-weight: 700;
}

.hero-rail b {
  writing-mode: vertical-rl;
  color: #d8b18f;
  font-size: 10px;
  letter-spacing: 0.18em;
}

.hero-copy {
  grid-column: 2;
  grid-row: 1;
  padding: clamp(52px, 6vw, 92px) clamp(36px, 5vw, 84px) 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(90deg, transparent 99%, rgba(24,32,29,.07) 99%),
    linear-gradient(0deg, transparent 99%, rgba(24,32,29,.07) 99%);
  background-size: 88px 88px;
}

.section-code {
  margin-bottom: 20px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.brand-display {
  margin-bottom: 20px;
  color: var(--green-900);
  font-size: clamp(66px, 7.3vw, 118px);
  font-weight: 850;
  line-height: 0.88;
  letter-spacing: -0.075em;
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 24px;
  color: var(--green-950);
  font-size: clamp(34px, 3.2vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.045em;
}

.hero-line {
  margin-bottom: 14px;
  color: var(--burgundy-800);
  font-size: clamp(20px, 1.6vw, 26px);
  font-weight: 720;
}

.hero-summary {
  max-width: 720px;
  margin-bottom: 28px;
  color: #56605b;
  font-size: 15px;
}

.hero-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-topics span {
  padding: 7px 10px;
  color: var(--green-800);
  border: 1px solid rgba(29, 70, 61, 0.28);
  font-size: 12px;
  font-weight: 700;
}

.hero-visual {
  grid-column: 3;
  grid-row: 1;
  padding: 36px;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 22px;
  background: var(--green-900);
  color: var(--ivory);
}

.image-frame {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid rgba(244, 240, 231, 0.32);
}

.image-frame::before,
.image-frame::after {
  content: "";
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

.image-frame::before {
  inset: 18px;
  border: 1px solid rgba(244, 240, 231, 0.35);
}

.image-frame::after {
  width: 66px;
  height: 5px;
  right: 18px;
  bottom: 18px;
  background: var(--copper);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 18px;
  align-items: end;
}

.visual-meta span {
  grid-row: 1 / 3;
  align-self: stretch;
  padding-right: 18px;
  display: flex;
  align-items: center;
  color: #ddb18b;
  border-right: 1px solid var(--line-light);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.visual-meta strong {
  font-size: 24px;
}

.visual-meta small {
  color: #b7c4be;
  font-size: 12px;
}

.hero-register {
  grid-column: 2 / 4;
  grid-row: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--green-950);
  color: var(--ivory);
}

.hero-register div {
  min-width: 0;
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--line-light);
}

.hero-register div:last-child { border-right: 0; }

.hero-register span {
  margin-bottom: 6px;
  color: #9da9a4;
  font-size: 10px;
  letter-spacing: 0.16em;
}

.hero-register strong {
  overflow-wrap: anywhere;
  font-size: 13px;
}

.section {
  padding: clamp(80px, 9vw, 140px) max(24px, calc((100% - var(--content)) / 2));
}

.section-heading {
  margin-bottom: 56px;
  display: grid;
  grid-template-columns: minmax(150px, 0.32fr) minmax(0, 1fr);
  gap: 52px;
  align-items: start;
}

.section-heading h2 {
  max-width: 1000px;
  margin-bottom: 18px;
  color: var(--green-950);
  font-size: clamp(36px, 4vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.section-heading p:not(.section-code) {
  max-width: 840px;
  margin-bottom: 0;
  color: #5e6762;
}

.section-heading.compact h2 {
  font-size: clamp(34px, 3.4vw, 52px);
}

.section-dark {
  background: var(--green-950);
  color: var(--ivory);
}

.section-burgundy {
  background: var(--burgundy-900);
  color: var(--ivory);
}

.section-heading.inverted h2 {
  color: var(--ivory);
}

.section-heading.inverted p:not(.section-code) {
  color: #b9c2bd;
}

.identity {
  background: var(--ivory);
}

.identity-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.identity-band article {
  padding: 38px 34px 34px 0;
  border-right: 1px solid var(--line);
}

.identity-band article + article {
  padding-left: 34px;
}

.identity-band article:last-child {
  border-right: 0;
}

.identity-band span,
.official-card > span {
  color: var(--copper);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.identity-band h3 {
  margin: 14px 0 12px;
  color: var(--green-900);
  font-size: 22px;
}

.identity-band p {
  margin-bottom: 0;
  color: #5f6863;
  font-size: 14px;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line-light);
}

.ecosystem-grid article {
  min-height: 260px;
  padding: 28px;
  border-right: 1px solid var(--line-light);
}

.ecosystem-grid article:last-child { border-right: 0; }

.ecosystem-grid b {
  color: var(--copper);
  font-size: 12px;
  letter-spacing: 0.18em;
}

.ecosystem-grid h3 {
  margin: 66px 0 12px;
  font-size: 25px;
}

.ecosystem-grid p {
  margin-bottom: 0;
  color: #b9c2bd;
  font-size: 14px;
}

.season-register {
  padding: 24px 0;
  display: grid;
  grid-template-columns: 190px 1fr auto;
  gap: 30px;
  align-items: center;
  border-bottom: 1px solid var(--line-light);
}

.season-register span {
  color: var(--copper);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.season-register strong {
  font-size: 18px;
}

.season-register p {
  margin: 0;
  color: #9da9a4;
  font-size: 13px;
}

.releases {
  background: var(--paper);
}

.feature-story {
  min-height: 570px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  background: var(--ivory);
}

.feature-story + .feature-story {
  margin-top: 30px;
}

.feature-image {
  min-height: 570px;
  background: var(--green-950);
  overflow: hidden;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-content {
  padding: clamp(38px, 5vw, 76px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-index {
  margin-bottom: 26px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.17em;
}

.feature-content h3 {
  margin-bottom: 20px;
  color: var(--green-950);
  font-size: clamp(38px, 4vw, 62px);
  line-height: 1;
}

.feature-intro {
  max-width: 650px;
  margin-bottom: 28px;
  color: #5a645f;
}

.feature-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-facts div {
  min-height: 108px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-facts dt,
.official-card dt,
.device-panel dt {
  color: #808983;
  font-size: 11px;
  letter-spacing: 0.12em;
}

.feature-facts dd {
  margin: 8px 0 0;
  color: var(--green-950);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.45;
}

.feature-story-secondary {
  background: #ebe6db;
}

.catalog {
  background: var(--ivory);
}

.catalog-table {
  border-top: 2px solid var(--green-950);
}

.catalog-row {
  display: grid;
  grid-template-columns: 1fr 1.55fr 1.15fr 1.5fr;
  border-bottom: 1px solid var(--line);
}

.catalog-row > * {
  min-width: 0;
  margin: 0;
  padding: 26px 24px;
  border-right: 1px solid var(--line);
}

.catalog-row > *:last-child { border-right: 0; }

.catalog-head span {
  padding-top: 15px;
  padding-bottom: 15px;
  color: #747d77;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.catalog-row h3 {
  color: var(--burgundy-800);
  font-size: 24px;
}

.catalog-row p {
  color: #56605b;
  font-size: 14px;
}

.catalog-note {
  margin-top: 24px;
  padding: 22px 28px;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  border-left: 4px solid var(--copper);
  background: #ebe6db;
}

.catalog-note strong {
  color: var(--green-900);
}

.catalog-note p {
  margin: 0;
  color: #5b645f;
  font-size: 14px;
}

.genre-matrix {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(244, 240, 231, 0.3);
  border-left: 1px solid rgba(244, 240, 231, 0.3);
}

.genre-matrix article {
  min-height: 220px;
  padding: 28px;
  border-right: 1px solid rgba(244, 240, 231, 0.3);
  border-bottom: 1px solid rgba(244, 240, 231, 0.3);
}

.genre-matrix .genre-feature {
  background: rgba(244, 240, 231, 0.09);
}

.genre-matrix span {
  color: #d2a47f;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.genre-matrix h3 {
  margin: 40px 0 10px;
  font-size: 24px;
}

.genre-matrix p {
  margin-bottom: 0;
  color: #d6c9c9;
  font-size: 13px;
}

.ai-editorial {
  margin-top: 72px;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr) 310px;
  gap: 50px;
  align-items: start;
  padding-top: 36px;
  border-top: 1px solid rgba(244, 240, 231, 0.3);
}

.ai-kicker {
  color: #d2a47f;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.ai-editorial h3 {
  margin-bottom: 18px;
  font-size: clamp(28px, 3vw, 44px);
  line-height: 1.15;
}

.ai-editorial p {
  margin: 0;
  color: #d6c9c9;
}

.ai-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-tags span {
  padding: 8px 10px;
  border: 1px solid rgba(244, 240, 231, 0.3);
  color: var(--ivory);
  font-size: 12px;
}

.updates {
  background: var(--paper);
}

.update-list {
  border-top: 2px solid var(--green-950);
}

.update-list article {
  display: grid;
  grid-template-columns: 150px 130px minmax(240px, 0.8fr) minmax(0, 1.2fr);
  gap: 24px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.update-list time {
  color: var(--burgundy-800);
  font-weight: 800;
}

.update-list span {
  color: var(--copper);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.update-list h3,
.update-list p {
  margin: 0;
}

.update-list h3 {
  color: var(--green-950);
  font-size: 20px;
}

.update-list p {
  color: #606a65;
  font-size: 14px;
}

.access-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(330px, 0.75fr);
  gap: 50px;
}

.access-ledger {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.access-ledger article {
  min-height: 250px;
  padding: 28px;
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.access-ledger span,
.device-panel > p {
  color: var(--copper);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.access-ledger h3 {
  margin: 54px 0 12px;
  font-size: 24px;
}

.access-ledger p {
  margin: 0;
  color: #b9c2bd;
  font-size: 14px;
}

.device-panel {
  min-height: 520px;
  padding: 42px;
  display: flex;
  flex-direction: column;
  background: var(--ivory);
  color: var(--green-950);
}

.device-panel strong {
  margin-top: 30px;
  font-size: clamp(34px, 3.3vw, 52px);
  line-height: 1.08;
}

.device-lines {
  margin: auto 0 42px;
  height: 150px;
  display: flex;
  gap: 12px;
  align-items: end;
}

.device-lines i {
  display: block;
  width: 31%;
  border: 1px solid var(--green-800);
}

.device-lines i:nth-child(1) { height: 60%; }
.device-lines i:nth-child(2) { height: 82%; }
.device-lines i:nth-child(3) { height: 100%; background: var(--burgundy-800); border-color: var(--burgundy-800); }

.device-panel dl {
  margin: 0;
  border-top: 1px solid var(--line);
}

.device-panel dl div {
  padding: 12px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}

.device-panel dd {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
}

.faq {
  background: var(--ivory);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.faq-grid article {
  min-height: 230px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.faq-grid h3 {
  margin-bottom: 18px;
  color: var(--green-900);
  font-size: 20px;
}

.faq-grid p {
  margin: 0;
  color: #626b66;
  font-size: 14px;
}

.official {
  background: #e9e4da;
}

.official-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.85fr 0.85fr;
  gap: 20px;
}

.official-card {
  min-height: 360px;
  padding: 38px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.official-card h3 {
  margin: 48px 0 18px;
  color: var(--green-900);
  font-size: 28px;
}

.official-card p {
  margin: 0;
  color: #5f6863;
}

.official-primary {
  background: var(--green-900);
  color: var(--ivory);
}

.official-primary h3 { color: var(--ivory); }

.official-card dl {
  margin: 0;
}

.official-card dl div {
  padding: 13px 0;
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 18px;
  border-bottom: 1px solid var(--line-light);
}

.official-card dd {
  margin: 0;
  font-size: 13px;
}

.site-footer {
  padding: 42px max(24px, calc((100% - var(--content)) / 2));
  display: flex;
  justify-content: space-between;
  gap: 50px;
  align-items: center;
  background: #081b17;
  color: var(--ivory);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-brand strong { color: var(--ivory); }
.footer-brand span { color: #8e9c96; }

.footer-copy {
  text-align: right;
}

.footer-copy p {
  margin: 3px 0;
  color: #aab4af;
  font-size: 12px;
}

@media (max-width: 1240px) {
  .header-inner {
    width: min(100% - 32px, var(--content));
  }

  nav a {
    padding-inline: 10px;
    font-size: 13px;
  }

  nav a::after {
    left: 10px;
    right: 10px;
  }

  .hero-stage {
    grid-template-columns: 68px minmax(0, 1fr) minmax(380px, 0.85fr);
  }

  .hero-copy {
    padding-inline: 42px;
  }

  .hero-visual {
    padding: 28px;
  }

  .image-frame { min-height: 390px; }

  .ai-editorial {
    grid-template-columns: 150px 1fr;
  }

  .ai-tags {
    grid-column: 2;
  }
}

@media (max-width: 1050px) {
  .menu-enabled .menu-toggle {
    display: flex;
  }

  .header-inner {
    position: relative;
    min-height: 76px;
    align-items: center;
  }

  .menu-enabled nav {
    position: absolute;
    left: -16px;
    right: -16px;
    top: 76px;
    padding: 10px 16px 18px;
    display: none;
    flex-direction: column;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(11, 33, 29, 0.14);
  }

  .menu-enabled.menu-open nav {
    display: flex;
  }

  .menu-enabled nav a {
    min-height: 46px;
    padding: 0 12px;
    border-bottom: 1px solid var(--line);
  }

  .menu-enabled nav a::after {
    left: 0;
    right: auto;
    top: 12px;
    bottom: 12px;
    width: 3px;
    height: auto;
    transform: scaleY(0);
  }

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

  .hero-stage {
    grid-template-columns: 62px 1fr;
    grid-template-rows: auto auto auto;
  }

  .hero-rail {
    grid-column: 1;
    grid-row: 1 / 4;
  }

  .hero-copy {
    grid-column: 2;
    grid-row: 1;
    min-height: 560px;
  }

  .hero-visual {
    grid-column: 2;
    grid-row: 2;
    grid-template-columns: 1fr 230px;
    grid-template-rows: minmax(340px, 1fr);
    align-items: end;
  }

  .image-frame { min-height: 340px; }

  .visual-meta {
    grid-template-columns: 1fr;
  }

  .visual-meta span {
    grid-row: auto;
    padding: 0 0 14px;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .hero-register {
    grid-column: 2;
    grid-row: 3;
    grid-template-columns: 1fr 1fr;
  }

  .hero-register div {
    border-bottom: 1px solid var(--line-light);
  }

  .section-heading {
    grid-template-columns: 130px 1fr;
    gap: 30px;
  }

  .ecosystem-grid,
  .genre-matrix {
    grid-template-columns: 1fr 1fr;
  }

  .ecosystem-grid article:nth-child(2) { border-right: 0; }
  .ecosystem-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line-light); }

  .feature-story {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .feature-story-secondary .feature-content { order: 2; }
  .feature-story-secondary .feature-image { order: 1; }

  .feature-image { min-height: 480px; }

  .catalog-row {
    grid-template-columns: 0.85fr 1.2fr 1fr 1.25fr;
  }

  .catalog-row > * {
    padding-inline: 16px;
  }

  .update-list article {
    grid-template-columns: 120px 110px 1fr;
  }

  .update-list p {
    grid-column: 3;
  }

  .access-layout,
  .official-grid {
    grid-template-columns: 1fr;
  }

  .device-panel {
    min-height: 440px;
  }

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

@media (max-width: 760px) {
  html { scroll-padding-top: 78px; }

  .brand-lockup strong { font-size: 18px; }
  .brand-lockup span { display: none; }
  .brand-lockup img { width: 38px; height: 38px; }

  .hero {
    padding: 14px 12px 0;
  }

  .hero-stage {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  .hero-rail {
    grid-column: 1;
    grid-row: 1;
    min-height: 54px;
    padding: 0 18px;
    flex-direction: row;
  }

  .hero-rail span,
  .hero-rail b {
    writing-mode: horizontal-tb;
  }

  .hero-copy {
    grid-column: 1;
    grid-row: 2;
    min-height: auto;
    padding: 48px 24px 44px;
    background-size: 64px 64px;
  }

  .brand-display {
    font-size: clamp(54px, 18vw, 88px);
    letter-spacing: -0.08em;
  }

  .hero h1 {
    font-size: clamp(31px, 9vw, 44px);
  }

  .hero-visual {
    grid-column: 1;
    grid-row: 3;
    padding: 20px;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
  }

  .image-frame {
    min-height: 260px;
  }

  .hero-register {
    grid-column: 1;
    grid-row: 4;
    grid-template-columns: 1fr;
  }

  .hero-register div {
    padding: 18px 22px;
    border-right: 0;
  }

  .section {
    padding: 76px 20px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 38px;
  }

  .section-heading h2,
  .section-heading.compact h2 {
    font-size: clamp(32px, 9vw, 44px);
  }

  .identity-band,
  .ecosystem-grid,
  .genre-matrix,
  .access-ledger,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .identity-band article,
  .identity-band article + article {
    padding: 28px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .identity-band article:last-child { border-bottom: 0; }

  .ecosystem-grid article,
  .ecosystem-grid article:nth-child(2) {
    min-height: 210px;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .ecosystem-grid article:last-child { border-bottom: 0; }
  .ecosystem-grid h3 { margin-top: 42px; }

  .season-register {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .feature-image {
    min-height: 300px;
  }

  .feature-content {
    padding: 34px 22px;
  }

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

  .catalog-table {
    border-top: 0;
  }

  .catalog-head {
    display: none;
  }

  .catalog-row {
    margin-bottom: 18px;
    display: block;
    border: 1px solid var(--line);
  }

  .catalog-row > * {
    padding: 17px 18px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .catalog-row > *:last-child { border-bottom: 0; }

  .catalog-row p::before {
    content: attr(data-label);
  }

  .catalog-note {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .genre-matrix article {
    min-height: 190px;
  }

  .ai-editorial {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .ai-tags { grid-column: 1; }

  .update-list article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .update-list p { grid-column: 1; }

  .device-panel {
    min-height: 420px;
    padding: 30px 24px;
  }

  .official-card {
    min-height: auto;
    padding: 30px 24px;
  }

  .official-card h3 { margin-top: 34px; }

  .official-card dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    padding: 38px 24px;
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-copy { text-align: left; }
}

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