:root {
  --bg: #f7f5f1;
  --bg-accent: #ebe6dc;
  --ink: #1c1b19;
  --muted: #5c574e;
  --line: #d4cec3;
  --link: #1a4f6e;
  --link-hover: #0f3348;
  --card: #fffcf7;
  --accent: #2a3d66;
  --max: 44rem;
  --font: "Iowan Old Style", "Palatino Linotype", Palatino, "Songti SC", "Noto Serif SC", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 100% 0%, #e4ddd0 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 0% 100%, #ddd6c8 0%, transparent 50%),
    var(--bg);
}

a {
  color: var(--link);
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--link-hover);
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.brand:hover {
  color: var(--ink);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.55rem;
  background: var(--accent);
  color: #f7f5f1;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.logo-mark-lg {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 1rem;
  font-size: 1.55rem;
  box-shadow: 0 6px 20px rgba(28, 27, 25, 0.08);
}

.brand .brand-text span {
  display: block;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0;
  margin-top: 0.1rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  font-size: 0.9rem;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
}

.lang-block + .lang-block {
  margin-top: 2.25rem;
  padding-top: 2rem;
  border-top: 1px dashed var(--line);
}

.lang-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.hero-brand img {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 1rem;
  box-shadow: 0 6px 20px rgba(28, 27, 25, 0.08);
}

.product-head img {
  width: 4rem;
  height: 4rem;
  border-radius: 0.9rem;
}

.meta {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0 0 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.legal-doc h2 {
  margin-top: 1.75rem;
}

.home-shots {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.65rem;
  margin: 0 0 0.75rem;
  overflow: visible;
  padding: 0;
  scroll-snap-type: none;
}

.home-shots figure {
  flex: none;
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
}

.home-shots img,
.gallery img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 640px) {
  .home-shots {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding: 0.25rem 0 0.75rem;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
  }

  .home-shots figure {
    flex: 0 0 9.5rem;
    scroll-snap-align: start;
  }
}

h1 {
  font-family: var(--font);
  font-size: clamp(1.55rem, 4vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 0.75rem;
}

.vision {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.lead {
  margin: 0 0 1.25rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0 1.75rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border-radius: 0.35rem;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #1d2c4a;
  color: #fff;
}

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--card);
}

.btn-ghost:hover {
  border-color: var(--muted);
  color: var(--ink);
}

h2 {
  font-family: var(--font);
  font-size: 1.15rem;
  margin: 1.5rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
}

.meta-list,
.story-list,
.feature-cols ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.meta-list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.meta-list li:last-child {
  border-bottom: 0;
}

.meta-list .label,
.contact-list .label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.meta-list .value {
  margin: 0;
}

.story-grid {
  display: grid;
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

@media (min-width: 560px) {
  .story-grid,
  .feature-cols {
    grid-template-columns: 1fr 1fr;
  }
}

.story-card,
.feature-col {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1rem 1.05rem;
}

.story-card h3,
.feature-col h3 {
  font-family: var(--font);
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.feature-cols {
  display: grid;
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.feature-col li {
  position: relative;
  padding-left: 1rem;
  margin: 0.4rem 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.feature-col li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.product-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.product-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 4rem;
  height: 4rem;
  border-radius: 0.9rem;
  background: #e8e2d6;
  color: var(--accent);
  font-family: var(--font);
  font-size: 1.35rem;
  font-weight: 600;
}

.demo-slot {
  margin: 1.25rem 0 1.5rem;
}

.demo-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(145deg, #2a3d66 0%, #1c1b19 100%);
  border: 1px solid var(--line);
  color: #f0ebe3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.25rem;
  text-align: center;
  overflow: hidden;
}

.demo-frame:has(video:not([hidden])) {
  padding: 0;
  background: #000;
  display: block;
}

.demo-frame video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.demo-frame .demo-label {
  font-family: var(--font);
  font-size: 1.1rem;
  margin: 0;
}

.demo-frame .demo-hint {
  font-size: 0.85rem;
  opacity: 0.8;
  margin: 0;
  max-width: 28rem;
}

.series-grid {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0 1.5rem;
}

@media (min-width: 560px) {
  .series-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
}

.series-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1rem 1.05rem;
  min-height: 7.5rem;
}

.series-card.featured {
  border-color: #b8c0d4;
  background: linear-gradient(180deg, #fffcf7 0%, #f0ebe3 100%);
}

.series-card.teaser {
  border-style: dashed;
  color: var(--muted);
}

.series-card h3 {
  font-family: var(--font);
  font-size: 1.05rem;
  margin: 0 0 0.4rem;
}

.series-card .tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.45rem;
}

.series-card.teaser .tag {
  color: var(--muted);
}

.series-card p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--muted);
}

.role-line {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.bundle {
  font-size: 0.85rem;
  color: var(--muted);
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  margin: 0 0 1rem;
}

.disclaimer {
  font-size: 0.9rem;
  color: var(--muted);
  padding: 0.85rem 1rem;
  background: var(--bg-accent);
  border-left: 3px solid var(--line);
  margin: 1rem 0;
}

.compliance {
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin: 0.5rem 0 1.25rem;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.25rem 0;
}

@media (min-width: 640px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

.gallery figure {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  overflow: hidden;
}

.gallery figcaption {
  font-size: 0.75rem;
  color: var(--muted);
  padding: 0.45rem 0.55rem 0.6rem;
}

.matrix-list {
  padding-left: 1.1rem;
  margin: 0.5rem 0 1rem;
  color: var(--muted);
}

.matrix-list li {
  margin: 0.35rem 0;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.contact-list li {
  margin-bottom: 1.15rem;
}

.muted-note {
  font-size: 0.9rem;
  color: var(--muted);
}

.site-footer {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--ink);
  text-decoration: underline;
}

@media (max-width: 520px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
}