:root {
  color-scheme: dark light;
  --bg: #090d11;
  --panel: rgba(18, 25, 31, 0.86);
  --panel-strong: rgba(24, 33, 41, 0.96);
  --line: rgba(125, 145, 164, 0.24);
  --text: #f3f7fa;
  --muted: #a9b5c0;
  --cyan: #39c8d8;
  --green: #7fd16a;
  --gold: #f0ba5b;
  --red: #ef695f;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(135deg, rgba(57, 200, 216, 0.1), transparent 30%),
    linear-gradient(225deg, rgba(127, 209, 106, 0.09), transparent 34%),
    var(--bg);
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 76%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(25, 31, 38, 0.14);
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 174px;
  height: auto;
  padding: 4px 0;
  background: #fff;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  color: #1d2228;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: 0;
}

.brand small {
  color: #5b6570;
  font-size: 12px;
  font-weight: 700;
}

nav {
  display: flex;
  gap: 18px;
  color: #3b434c;
  font-size: 14px;
  font-weight: 800;
}

nav a:hover {
  color: #ff7a2a;
}

.site-language-switch {
  display: flex;
  gap: 2px;
  padding: 3px;
  color: #394852;
  background: #eef3f5;
  border: 1px solid #dce3e8;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 850;
  white-space: nowrap;
}

.site-language-switch a {
  padding: 7px 9px;
  border-radius: 3px;
}

.site-language-switch a:hover { color: var(--cyan); }

.site-language-switch .is-current {
  color: #17212b;
  background: #ffffff;
  box-shadow: 0 1px 3px rgba(24, 45, 61, 0.14);
}

.hero {
  position: relative;
  min-height: 58vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: clamp(64px, 8vw, 104px) clamp(20px, 5vw, 72px) 72px;
  background:
    linear-gradient(90deg, rgba(6, 10, 14, 0.94) 0%, rgba(6, 10, 14, 0.78) 46%, rgba(6, 10, 14, 0.28) 100%),
    linear-gradient(0deg, rgba(9, 13, 17, 1) 0%, rgba(9, 13, 17, 0) 30%),
    url("./assets/photos/video-operation.jpg") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.hero::after {
  position: absolute;
  right: clamp(20px, 5vw, 72px);
  bottom: 34px;
  content: "Sound / Vision / Control";
  color: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 18px;
  font-size: clamp(48px, 6.5vw, 88px);
  line-height: 0.92;
  letter-spacing: 0;
}

.lead {
  max-width: 760px;
  color: #d6dee5;
  font-size: clamp(17px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.45;
}

.topics-section {
  padding-top: 56px;
  padding-bottom: 34px;
}

.topics-heading {
  display: grid;
  grid-template-columns: 1fr;
  column-gap: 18px;
  align-items: baseline;
  max-width: 900px;
}

.topics-heading .eyebrow {
  grid-column: 1 / -1;
}

.topics-heading h2 {
  margin-bottom: 8px;
}

.topics-heading > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.hero-actions,
.contact-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary-link,
.secondary-link,
.contact-grid a {
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 900;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
}

.primary-link {
  background: var(--cyan);
  color: #071014;
}

.secondary-link {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.section {
  padding: 48px clamp(20px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 22px;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4vw, 54px);
  letter-spacing: 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 16px;
}

.product-spotlight {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: clamp(28px, 6vw, 88px);
  align-items: center;
  margin: 18px clamp(20px, 5vw, 72px) 44px;
  padding: clamp(32px, 5vw, 72px);
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 16%, rgba(57, 200, 216, 0.22), transparent 34%),
    linear-gradient(135deg, rgba(28, 39, 47, 0.98), rgba(9, 14, 18, 0.98));
  border: 1px solid rgba(57, 200, 216, 0.28);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.product-spotlight-topics {
  margin: 0;
  border-color: rgba(240, 186, 91, 0.38);
}

.product-spotlight-topics h3 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 48px);
}

.topics-download-note {
  margin: 0 0 22px;
  padding: 12px 14px;
  color: #f8d58f;
  background: rgba(240, 186, 91, 0.08);
  border-left: 3px solid var(--gold);
  line-height: 1.7;
}

.product-spotlight h2 {
  margin-bottom: 20px;
}

.product-spotlight-copy > p:not(.eyebrow, .release-chip) {
  max-width: 720px;
  color: #cbd6de;
  font-size: 18px;
  line-height: 1.85;
}

.release-chip {
  display: inline-flex;
  margin: 0 0 18px;
  padding: 7px 12px;
  color: #071014;
  background: var(--gold);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.product-spotlight-icons {
  position: relative;
  min-height: 340px;
}

.product-icon-card {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: min(250px, 68%);
  min-height: 300px;
  padding: 24px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.025)),
    #111920;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 26px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.46);
}

.product-icon-card img {
  width: 74%;
  max-height: 180px;
}

.product-icon-card span {
  margin-top: 5px;
  color: var(--cyan);
  font-size: 16px;
  font-weight: 950;
}

.product-icon-card strong {
  margin-top: 10px;
  font-size: 17px;
}

.product-icon-card p {
  max-width: 180px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
  text-align: center;
}

.sound-card {
  top: 0;
  left: 0;
  transform: rotate(-5deg);
}

.video-card {
  right: 0;
  bottom: 0;
  transform: rotate(5deg);
}

article,
.company-card,
.contact-grid a,
.privacy-section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.18);
}

article {
  min-height: 320px;
  overflow: hidden;
  padding: 0 24px 24px;
}

.service-photo {
  display: block;
  width: calc(100% + 48px);
  height: 170px;
  margin: 0 -24px 22px;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
}

article p,
.privacy-section p,
dd {
  color: #c6d0d8;
  line-height: 1.75;
}

.company-card {
  max-width: 980px;
  padding: 10px 24px;
  background: var(--panel-strong);
}

dl {
  margin: 0;
}

dl div {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

dl div:last-child {
  border-bottom: 0;
}

dt {
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

dd {
  margin: 0;
  font-weight: 750;
}

dd a {
  color: var(--cyan);
}

.contact-grid a {
  flex: 1 1 280px;
  padding: 22px;
}

.contact-grid span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-grid strong {
  color: var(--cyan);
  font-size: clamp(22px, 3vw, 34px);
}

.privacy-section {
  max-width: none;
}

.privacy-section p {
  max-width: 1080px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
}

@media (max-width: 900px) {
  .site-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px 16px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    gap: 8px;
    justify-content: space-between;
  }

  .site-language-switch {
    grid-column: 2;
    grid-row: 1;
    align-self: center;
    justify-self: end;
  }

  .hero {
    min-height: 580px;
    background:
      linear-gradient(90deg, rgba(6, 10, 14, 0.96) 0%, rgba(6, 10, 14, 0.82) 100%),
      linear-gradient(0deg, rgba(9, 13, 17, 1) 0%, rgba(9, 13, 17, 0) 30%),
      url("./assets/photos/video-operation.jpg") center / cover no-repeat;
  }

  .product-spotlight {
    grid-template-columns: 1fr;
  }

  .product-spotlight-icons {
    max-width: 560px;
    width: 100%;
    margin-inline: auto;
  }

  dl div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .site-header {
    gap: 8px 10px;
    padding-inline: 18px;
  }

  .brand {
    min-width: 0;
    gap: 8px;
  }

  .brand img {
    width: 128px;
  }

  .brand span {
    display: none;
  }

  nav {
    font-size: 13px;
  }

  .hero {
    padding-top: 76px;
  }

  .hero-actions a {
    width: 100%;
    justify-content: center;
    padding-inline: 14px;
    font-size: clamp(14px, 4.2vw, 16px);
    text-align: center;
  }

  .contact-grid strong {
    font-size: clamp(18px, 5vw, 22px);
    letter-spacing: -0.015em;
    white-space: nowrap;
  }

  .product-spotlight {
    margin-inline: 0;
    padding: 24px 16px;
  }

  .product-spotlight-icons {
    min-height: 340px;
  }
}

/* Product-led light theme: clear typography and generous spacing. */
:root {
  --bg: #f5f7f8;
  --panel: #ffffff;
  --panel-strong: #ffffff;
  --line: #dce3e8;
  --text: #17212b;
  --muted: #61707d;
  --cyan: #087f9c;
  --green: #4e8c4d;
  --gold: #e4a52e;
  --shadow: 0 16px 40px rgba(24, 45, 61, 0.09);
}

body {
  background: var(--bg);
  color: var(--text);
}

body::before {
  display: none;
}

.site-header {
  padding-top: 12px;
  padding-bottom: 12px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: #e4e9ed;
  box-shadow: 0 4px 18px rgba(24, 45, 61, 0.07);
}

nav {
  color: #394852;
}

nav a:hover {
  color: var(--cyan);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  min-height: 520px;
  align-items: center;
  padding: 60px clamp(20px, 7vw, 110px);
  background: #f0f4f6;
  border-bottom-color: #dce3e8;
}

.hero::before {
  position: absolute;
  inset: 0 0 0 48%;
  z-index: 0;
  content: "";
  background:
    linear-gradient(90deg, #f0f4f6 0%, rgba(240, 244, 246, 0.2) 25%, rgba(240, 244, 246, 0) 48%),
    url("./assets/photos/video-operation.jpg") center / cover no-repeat;
}

.hero::after {
  right: clamp(20px, 7vw, 110px);
  bottom: 24px;
  color: rgba(255, 255, 255, 0.8);
}

.hero-copy {
  max-width: 620px;
}

.hero h1 {
  color: #101a22;
  font-size: clamp(42px, 4.5vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.lead {
  color: #445561;
  font-size: clamp(17px, 1.7vw, 22px);
  font-weight: 600;
  line-height: 1.75;
}

.primary-link,
.secondary-link,
.contact-grid a {
  border-radius: 4px;
}

.primary-link {
  background: var(--cyan);
  color: #ffffff;
}

.secondary-link {
  background: #ffffff;
  color: #263640;
  border-color: #cbd6dc;
}

.section {
  padding-top: clamp(48px, 7vw, 72px);
  padding-bottom: clamp(48px, 7vw, 72px);
}

.topics-section {
  background: #ffffff;
}

.topics-heading {
  max-width: 1050px;
  margin-bottom: 30px;
}

.topics-heading h2 {
  font-size: clamp(30px, 3.6vw, 50px);
}

.topics-heading h2,
h2 {
  color: #17212b;
  letter-spacing: -0.03em;
}

.topics-heading > p:last-child,
article p,
.privacy-section p,
dd {
  color: #586a76;
}

.product-spotlight {
  background: #edf5f7;
  border-color: #c9e1e6;
  border-radius: 8px;
  box-shadow: none;
}

.product-spotlight-copy > p:not(.eyebrow, .release-chip) {
  color: #435965;
}

.product-spotlight-topics h3 {
  color: #17212b;
  font-size: clamp(27px, 3.2vw, 42px);
}

.product-icon-card {
  background: #ffffff;
  border-color: #d8e1e6;
  border-radius: 12px;
  box-shadow: 0 18px 32px rgba(24, 45, 61, 0.12);
}

.product-icon-card strong {
  color: #17212b;
}

.product-icon-card p {
  color: #61707d;
}

.service-grid {
  gap: 20px;
}

article,
.company-card,
.contact-grid a,
.privacy-section {
  background: #ffffff;
  border-color: #dce3e8;
  box-shadow: none;
}

article {
  min-height: 300px;
}

.company-section {
  background: #f0f4f6;
}

.company-card {
  background: #ffffff;
}

.contact-section {
  background: #ffffff;
}

.site-footer {
  color: #667783;
  background: #f0f4f6;
  border-top-color: #dce3e8;
}

@media (max-width: 900px) {
  .hero {
    display: flex;
    min-height: 600px;
    padding-top: 76px;
    background: #f0f4f6;
  }

  .hero:not(.hero--feature-ad) {
    align-items: flex-start;
  }

  .hero::before {
    inset: 62% 0 0;
    background:
      linear-gradient(0deg, rgba(240, 244, 246, 0.96), rgba(240, 244, 246, 0.12) 48%, rgba(240, 244, 246, 0)),
      url("./assets/photos/video-operation.jpg") center / cover no-repeat;
  }

  .hero-copy {
    max-width: 680px;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 650px;
    padding-top: 64px;
  }

  .hero h1 {
    font-size: clamp(40px, 12vw, 58px);
  }
}

/* 2026-08-02: Japanese home real-photo Stream Deck promotion and actual-screen cards. */
.hero.hero--feature-ad {
  grid-template-columns: minmax(0, 0.92fr) minmax(440px, 1.08fr);
  gap: clamp(28px, 3.4vw, 54px);
  min-height: auto;
  background: #f0f4f6;
}

.hero.hero--feature-ad h1 {
  font-size: clamp(42px, 4vw, 58px);
}

.hero.hero--feature-ad::before,
.hero.hero--feature-ad::after {
  display: none;
}

.home-hero-ad {
  position: relative;
  z-index: 1;
  display: block;
  overflow: hidden;
  background: #07111b;
  border: 1px solid rgba(8, 127, 156, 0.3);
  border-radius: 12px;
  box-shadow: 0 24px 58px rgba(15, 34, 48, 0.2);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.home-hero-ad-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  align-items: start;
}

.home-hero-ad:hover {
  border-color: rgba(8, 127, 156, 0.72);
  box-shadow: 0 30px 68px rgba(15, 34, 48, 0.26);
  transform: translateY(-3px);
}

.home-hero-ad:focus-visible,
.product-screen-ad-card:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

.home-hero-ad img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.home-hero-ad-media {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.home-hero-ad-meta {
  display: flex;
  min-height: 74px;
  flex-direction: column;
  gap: 5px;
  padding: 12px 13px 13px;
  color: #f3f8fa;
}

.home-hero-ad-meta strong {
  font-size: 14px;
  line-height: 1.35;
}

.home-hero-ad-meta small {
  color: #a9c2cc;
  font-size: 10px;
  font-weight: 800;
  line-height: 1.45;
}

.product-spotlight:has(.product-screen-ad-grid) {
  grid-template-columns: minmax(0, 0.88fr) minmax(460px, 1.12fr);
  gap: clamp(28px, 5vw, 72px);
}

.product-screen-ad-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.product-screen-ad-card {
  display: block;
  overflow: hidden;
  color: #17212b;
  background: #ffffff;
  border: 1px solid #d2dde3;
  border-radius: 10px;
  box-shadow: 0 14px 30px rgba(24, 45, 61, 0.14);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.product-screen-ad-card:hover {
  border-color: rgba(8, 127, 156, 0.62);
  box-shadow: 0 18px 38px rgba(24, 45, 61, 0.2);
  transform: translateY(-2px);
}

.product-screen-ad-thumbnail {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #081016;
}

.product-screen-ad-thumbnail img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 220ms ease;
}

.product-screen-ad-card:hover .product-screen-ad-thumbnail img {
  transform: scale(1.018);
}

.product-screen-ad-meta {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 3px;
  padding: 12px 14px 13px;
}

.product-screen-ad-meta strong {
  font-size: 15px;
}

.product-screen-ad-meta small {
  color: #55707e;
  font-size: 11px;
  font-weight: 800;
  text-align: left;
}

@media (max-width: 1040px) {
  .hero.hero--feature-ad,
  .product-spotlight:has(.product-screen-ad-grid) {
    grid-template-columns: 1fr;
  }

  .hero.hero--feature-ad {
    display: grid;
    gap: 34px;
    min-height: auto;
  }

  .home-hero-ad-grid,
  .product-screen-ad-grid {
    width: min(100%, 780px);
    margin-inline: auto;
  }
}

@media (max-width: 560px) {
  .hero.hero--feature-ad {
    min-height: auto;
    padding: 48px 18px;
  }

  .hero.hero--feature-ad h1 {
    font-size: clamp(34px, 10.7vw, 40px);
    line-height: 1.1;
  }

  .home-hero-ad-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .home-hero-ad-meta {
    min-height: 0;
  }

  .home-hero-ad-meta small {
    font-size: 11px;
  }

  .product-spotlight-copy > p:not(.eyebrow, .release-chip) {
    font-size: 16px;
    line-height: 1.7;
  }

  .product-spotlight-icons {
    display: grid;
    gap: 14px;
    min-height: 0;
  }

  .product-icon-card {
    position: static;
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr);
    width: 100%;
    min-height: 0;
    padding: 18px;
    column-gap: 14px;
    row-gap: 4px;
    text-align: left;
    transform: none;
  }

  .product-icon-card img {
    grid-row: 1 / span 2;
    width: 72px;
    max-height: 72px;
    justify-self: center;
  }

  .product-icon-card strong,
  .product-icon-card span {
    margin-top: 0;
  }

  .product-icon-card p {
    grid-column: 1 / -1;
    max-width: none;
    margin-top: 6px;
    text-align: left;
  }

  .product-screen-ad-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .product-screen-ad-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }

  .product-screen-ad-meta small {
    text-align: left;
  }
}