:root {
  color-scheme: dark;
  --bg: #07030d;
  --bg-soft: #13071f;
  --text: #fff7ff;
  --muted: #ccb8d9;
  --pink: #ff4fd8;
  --pink-hot: #ff1fbf;
  --violet: #8a5cff;
  --cyan: #7cf7ff;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --shadow: 0 30px 90px rgba(255, 79, 216, 0.18);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 79, 216, 0.24), transparent 28%),
    radial-gradient(circle at 82% 12%, rgba(138, 92, 255, 0.22), transparent 30%),
    radial-gradient(circle at 58% 90%, rgba(124, 247, 255, 0.12), transparent 26%),
    linear-gradient(135deg, #08030d 0%, #12051c 52%, #07030d 100%);
  overflow-x: hidden;
}

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

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.18;
  mix-blend-mode: screen;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, black, transparent 78%);
}

.aurora {
  pointer-events: none;
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  filter: blur(36px);
  opacity: 0.38;
  animation: float 8s ease-in-out infinite;
}

.aurora-one {
  left: -130px;
  top: 120px;
  background: var(--pink);
}

.aurora-two {
  right: -160px;
  bottom: 60px;
  background: var(--violet);
  animation-delay: -3s;
}

.site-header,
.hero,
.feature-grid,
.site-footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
}

.brand,
.nav,
.header-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--pink), var(--violet));
  box-shadow: 0 0 34px rgba(255, 79, 216, 0.55);
  letter-spacing: 0;
}

.nav {
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px);
}

.nav a {
  padding: 10px 16px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  transition: 0.2s ease;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
}

.header-actions {
  gap: 10px;
}

.lang-toggle {
  display: inline-grid;
  place-items: center;
  min-width: 58px;
  min-height: 46px;
  padding: 0 16px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  font: inherit;
  font-size: 14px;
  font-weight: 850;
  cursor: pointer;
  transition: 0.2s ease;
}

.lang-toggle:hover {
  border-color: rgba(255, 79, 216, 0.62);
  background: rgba(255, 255, 255, 0.12);
}

.hero {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 64px;
  align-items: center;
  padding: 72px 0 52px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--pink));
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(48px, 8vw, 92px);
  line-height: 0.95;
  letter-spacing: -0.07em;
  text-shadow: 0 0 50px rgba(255, 79, 216, 0.35);
}

.subtitle {
  max-width: 640px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 56px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 850;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

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

.button-primary {
  color: #170617;
  background: linear-gradient(135deg, #fff, #ffaae9 35%, var(--pink));
  box-shadow: 0 18px 48px rgba(255, 79, 216, 0.36);
}

.button-secondary {
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  color: var(--text);
}

.button-secondary:hover {
  border-color: rgba(255, 79, 216, 0.58);
  box-shadow: 0 14px 38px rgba(138, 92, 255, 0.2);
}

.button-icon {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.28);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 560px;
  margin-top: 38px;
}

.stats div {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.055);
}

.stats strong,
.stats span {
  display: block;
}

.stats strong {
  font-size: 18px;
}

.stats span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.hero-card {
  position: relative;
  min-height: 560px;
}

.orbital-ring {
  position: absolute;
  inset: 50px 0 0 18px;
  border: 1px solid rgba(255, 79, 216, 0.22);
  border-radius: 48% 52% 44% 56%;
  transform: rotate(-12deg);
  box-shadow: inset 0 0 80px rgba(255, 79, 216, 0.08), 0 0 80px rgba(255, 79, 216, 0.12);
  animation: slowSpin 18s linear infinite;
}

.glass-card,
.mini-card,
.feature-card {
  border: 1px solid var(--glass-border);
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045));
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.main-card {
  position: absolute;
  right: 16px;
  top: 30px;
  width: min(100%, 430px);
  padding: 18px;
  border-radius: var(--radius-xl);
  transform: rotate(2deg);
}

.video-frame {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 26px;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.25), transparent 16%),
    radial-gradient(circle at 70% 28%, rgba(255, 79, 216, 0.5), transparent 22%),
    linear-gradient(145deg, rgba(255, 79, 216, 0.9), rgba(138, 92, 255, 0.64) 42%, rgba(7, 3, 13, 0.92));
}

.video-frame::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 22px;
}

.video-frame::after {
  content: "DIVAVIDS";
  position: absolute;
  left: 22px;
  bottom: 22px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.22em;
}

.play-core {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  border-radius: 999px;
  color: #210721;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 20px rgba(255, 255, 255, 0.08), 0 0 70px rgba(255, 79, 216, 0.5);
  font-size: 30px;
}

.spark {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 0 22px #fff;
  animation: blink 2s ease-in-out infinite;
}

.spark-a { left: 18%; top: 20%; }
.spark-b { right: 18%; top: 42%; animation-delay: -0.6s; }
.spark-c { left: 42%; bottom: 18%; animation-delay: -1.2s; }

.card-text {
  padding: 20px 4px 4px;
}

.tag {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.18em;
}

.card-text h2 {
  margin: 8px 0 8px;
  font-size: 34px;
  letter-spacing: -0.04em;
}

.card-text p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.mini-card {
  position: absolute;
  display: grid;
  gap: 8px;
  width: 230px;
  padding: 20px;
  border-radius: 22px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.mini-card:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: rgba(255, 79, 216, 0.62);
}

.mini-card span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.16em;
}

.mini-card strong {
  font-size: 18px;
}

.tg {
  left: 0;
  bottom: 76px;
}

.bili {
  right: 0;
  bottom: 0;
}

.feature-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 20px 0 70px;
}

.feature-card {
  min-height: 210px;
  padding: 28px;
  border-radius: var(--radius-lg);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 18px;
  background: rgba(255, 79, 216, 0.15);
  font-size: 24px;
}

.feature-card h3 {
  margin: 22px 0 10px;
  font-size: 22px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.site-footer {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 10px;
}

.footer-links a:hover {
  color: var(--text);
}

@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(18px, -24px, 0) scale(1.06); }
}

@keyframes slowSpin {
  from { transform: rotate(-12deg); }
  to { transform: rotate(348deg); }
}

@keyframes blink {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.25); }
}

@media (max-width: 960px) {
  .site-header,
  .hero,
  .feature-grid,
  .site-footer {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 42px;
  }

  .hero-card {
    min-height: 520px;
  }

  .main-card {
    left: 50%;
    right: auto;
    transform: translateX(-50%) rotate(1deg);
  }

  .tg { left: 4px; }
  .bili { right: 4px; }

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

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    gap: 18px;
    flex-direction: column;
  }

  .header-actions {
    width: 100%;
  }

  .nav {
    flex: 1;
    width: auto;
    justify-content: space-between;
  }

  .nav a {
    flex: 1;
    text-align: center;
  }

  .hero {
    padding-top: 28px;
  }

  h1 {
    font-size: clamp(42px, 15vw, 64px);
  }

  .cta-row,
  .button {
    width: 100%;
  }

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

  .hero-card {
    min-height: 650px;
  }

  .main-card {
    width: 100%;
    top: 0;
  }

  .mini-card {
    width: calc(100% - 20px);
    left: 10px;
    right: 10px;
  }

  .tg { bottom: 94px; }
  .bili { bottom: 14px; }

  .site-footer {
    flex-direction: column;
  }
}

/* Mobile performance patch: lighter effects for phones */
@media (max-width: 768px) {
  html {
    scroll-behavior: auto;
  }

  body {
    background:
      radial-gradient(circle at 15% 8%, rgba(255, 79, 216, 0.18), transparent 30%),
      radial-gradient(circle at 90% 30%, rgba(138, 92, 255, 0.16), transparent 34%),
      linear-gradient(135deg, #08030d 0%, #15071f 55%, #08030d 100%);
  }

  .noise,
  .aurora,
  .orbital-ring,
  .spark {
    display: none !important;
  }

  .nav,
  .lang-toggle,
  .glass-card,
  .mini-card,
  .feature-card,
  .button-secondary {
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }

  .glass-card,
  .mini-card,
  .feature-card {
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.24);
    background: rgba(255, 255, 255, 0.075);
  }

  .brand-mark {
    box-shadow: 0 0 18px rgba(255, 79, 216, 0.34);
  }

  h1 {
    text-shadow: 0 0 22px rgba(255, 79, 216, 0.22);
  }

  .button,
  .mini-card,
  .lang-toggle {
    transition: none;
  }

  .button:hover,
  .mini-card:hover {
    transform: none;
  }

  .button-primary {
    box-shadow: 0 12px 28px rgba(255, 79, 216, 0.24);
  }

  .hero-card {
    display: grid;
    gap: 14px;
    min-height: 0;
  }

  .main-card,
  .mini-card {
    position: static;
    width: 100%;
    transform: none !important;
  }

  .main-card {
    padding: 14px;
  }

  .video-frame {
    aspect-ratio: 16 / 10;
    border-radius: 22px;
  }

  .play-core {
    width: 74px;
    height: 74px;
    box-shadow: 0 0 0 12px rgba(255, 255, 255, 0.08), 0 0 30px rgba(255, 79, 216, 0.28);
  }

  .card-text {
    padding: 16px 4px 4px;
  }

  .feature-card {
    min-height: auto;
    padding: 22px;
  }
}

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