:root {
  --bg: #0a0d14;
  --bg-soft: #111522;
  --surface: rgba(20, 25, 39, 0.72);
  --surface-strong: rgba(30, 36, 56, 0.9);
  --surface-soft: rgba(255, 255, 255, 0.05);
  --text: #f7f1e8;
  --muted: #b7b2ac;
  --line: rgba(255, 255, 255, 0.1);
  --accent: #f0b45d;
  --accent-deep: #ff8d54;
  --accent-soft: #ffe0b6;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.34);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, rgba(255, 141, 84, 0.2), transparent 24%),
    radial-gradient(circle at 78% 18%, rgba(240, 180, 93, 0.16), transparent 22%),
    radial-gradient(circle at 50% 100%, rgba(90, 48, 133, 0.22), transparent 30%),
    linear-gradient(180deg, #090c14 0%, #0b101a 38%, #121927 100%);
  min-height: 100vh;
}

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

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

.backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 22%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.65), transparent 92%);
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 18px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(12, 15, 24, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.26);
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 141, 84, 0.18), rgba(240, 180, 93, 0.18));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 10px 22px rgba(240, 180, 93, 0.18);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-text {
  font-size: 18px;
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
}

.site-nav a:hover {
  color: #ffffff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 44px;
  align-items: center;
  padding: 72px 0 42px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.hero h1,
.section h2,
.cta-panel h2,
.about-panel h2 {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(48px, 7.8vw, 92px);
  text-shadow: 0 12px 36px rgba(0, 0, 0, 0.34);
}

.hero-text {
  max-width: 640px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent-deep), var(--accent));
  color: #1a120b;
  box-shadow: 0 18px 34px rgba(240, 180, 93, 0.26);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
}

.button-small {
  min-height: 42px;
  padding: 0 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.button-secondary:hover,
.button-small:hover {
  border-color: rgba(240, 180, 93, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  padding: 14px 16px;
  border-radius: 18px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.06), rgba(240, 180, 93, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-tagline span {
  flex: 0 0 auto;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(240, 180, 93, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.hero-tagline p {
  margin: 0;
  color: #f8f5ef;
  font-size: 15px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 220px));
  gap: 14px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}

.hero-stats li,
.feature-card,
.screen-card,
.about-panel,
.cta-panel {
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero-stats li {
  padding: 18px 18px 16px;
  border-radius: var(--radius-md);
}

.hero-stats strong {
  display: block;
  font-size: 22px;
  color: #ffffff;
}

.hero-stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.hero-showcase {
  position: relative;
  display: grid;
  justify-items: center;
}

.showcase-card-main {
  width: min(100%, 420px);
  padding: 18px;
  border-radius: 38px;
  background:
    linear-gradient(180deg, rgba(38, 45, 69, 0.95), rgba(18, 23, 35, 0.88)),
    var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.showcase-poster {
  position: relative;
  overflow: hidden;
  min-height: 560px;
  padding: 34px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 141, 84, 0.28), transparent 24%),
    radial-gradient(circle at 80% 76%, rgba(240, 180, 93, 0.2), transparent 24%),
    linear-gradient(180deg, #111729 0%, #0b101b 52%, #090c14 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.poster-label {
  position: relative;
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 12px;
  letter-spacing: 0.24em;
}

.showcase-poster h2 {
  position: relative;
  margin: 14px 0 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(42px, 5vw, 60px);
  line-height: 1.05;
  color: #fff8ef;
}

.poster-copy {
  position: relative;
  max-width: 280px;
  margin: 16px 0 0;
  color: rgba(247, 241, 232, 0.78);
  line-height: 1.85;
}

.poster-pills {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.poster-pills span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #fff8ef;
  font-size: 13px;
}

.poster-glow {
  position: absolute;
  right: -40px;
  top: 56px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 180, 93, 0.42) 0%, rgba(255, 141, 84, 0.18) 34%, transparent 70%);
  filter: blur(8px);
}

.showcase-note {
  position: absolute;
  right: -8px;
  bottom: 34px;
  max-width: 260px;
  padding: 16px 18px;
  border-radius: 22px;
  background: rgba(15, 18, 29, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.28);
}

.showcase-note span {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.showcase-note p {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  color: #f6f1e9;
}

.section {
  padding: 72px 0 0;
}

.section-heading {
  display: grid;
  gap: 12px;
  max-width: 720px;
  margin-bottom: 28px;
}

.section-heading h2,
.cta-panel h2,
.about-panel h2 {
  font-size: clamp(34px, 5vw, 56px);
}

.section-heading.compact {
  margin-bottom: 24px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    var(--surface);
}

.feature-card h3 {
  margin: 0 0 14px;
  font-size: 24px;
  color: #ffffff;
}

.feature-card p,
.about-panel p,
.cta-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

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

.screen-card {
  margin: 0;
  padding: 14px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--surface);
}

.screen-card img {
  width: 100%;
  border-radius: 18px;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
  background: #ddd1c7;
}

.about-panel,
.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  gap: 28px;
  padding: 32px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(240, 180, 93, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.02)),
    var(--surface);
}

.info-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
}

.info-list div {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.info-list dt {
  color: var(--muted);
  font-size: 13px;
}

.info-list dd {
  margin: 10px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: #ffffff;
}

.cta-section {
  padding-bottom: 80px;
}

.cta-panel {
  align-items: center;
}

.site-footer {
  padding: 0 0 42px;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1fr);
  gap: 24px;
  padding: 26px 0 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-branding strong {
  display: block;
  color: #ffffff;
  font-size: 20px;
}

.footer-branding p,
.footer-meta p {
  margin: 10px 0 0;
  line-height: 1.8;
}

.floating {
  animation: floating 6s ease-in-out infinite;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes floating {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-showcase {
    order: 0;
  }

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

  .about-panel,
  .cta-panel {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .site-header {
    position: static;
    padding: 12px 0 0;
  }

  .header-inner,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-inner {
    gap: 14px;
    padding: 14px;
    border-radius: 28px;
  }

  .site-nav {
    width: 100%;
    flex-wrap: wrap;
    gap: 10px 12px;
    font-size: 14px;
  }

  .hero {
    gap: 22px;
    padding-top: 28px;
  }

  .hero h1 {
    font-size: clamp(34px, 12vw, 48px);
    line-height: 1.12;
  }

  .hero-text {
    font-size: 16px;
    line-height: 1.8;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .hero-actions .button,
  .cta-panel .button,
  .site-nav .button-small {
    width: 100%;
  }

  .hero-tagline {
    gap: 10px;
    padding: 12px 14px;
  }

  .hero-tagline p {
    font-size: 14px;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .hero-stats li {
    padding: 16px 14px;
  }

  .hero-stats,
  .feature-grid,
  .info-list {
    grid-template-columns: 1fr;
  }

  .screens-grid {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(72vw, 280px);
    grid-template-columns: unset;
    gap: 12px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    scroll-padding-left: 0;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .screens-grid::-webkit-scrollbar {
    display: none;
  }

  .hero-showcase {
    width: 100%;
  }

  .showcase-card-main {
    padding: 12px;
    border-radius: 28px;
  }

  .showcase-note {
    position: static;
    right: auto;
    bottom: auto;
    margin-top: 12px;
    max-width: none;
    padding: 14px 16px;
  }

  .showcase-note p {
    font-size: 15px;
  }

  .showcase-poster {
    min-height: 360px;
    padding: 22px;
    border-radius: 22px;
  }

  .showcase-poster h2 {
    font-size: clamp(32px, 10vw, 42px);
  }

  .poster-copy {
    max-width: none;
    font-size: 14px;
    line-height: 1.75;
  }

  .poster-pills {
    gap: 8px;
    margin-top: 18px;
  }

  .poster-pills span {
    font-size: 12px;
  }

  .poster-glow {
    right: -60px;
    top: 24px;
    width: 180px;
    height: 180px;
  }

  .section {
    padding-top: 52px;
  }

  .section-heading {
    gap: 10px;
    margin-bottom: 20px;
  }

  .section-heading h2,
  .cta-panel h2,
  .about-panel h2 {
    font-size: clamp(28px, 8vw, 34px);
  }

  .about-panel,
  .cta-panel,
  .feature-card,
  .screen-card {
    padding: 22px;
  }

  .feature-card h3 {
    font-size: 20px;
  }

  .screen-card {
    padding: 10px;
    border-radius: 22px;
    scroll-snap-align: start;
  }

  .screen-card img {
    border-radius: 14px;
  }

  .info-list div {
    padding: 16px;
  }

  .footer-inner {
    display: grid;
    gap: 16px;
    padding-top: 20px;
  }
}