:root {
  --bg: #06080c;
  --bg-soft: rgba(255,255,255,0.04);
  --panel: rgba(10, 16, 26, 0.78);
  --panel-2: rgba(255,255,255,0.06);
  --line: rgba(255,255,255,0.09);
  --text: #f4f7fb;
  --text-2: rgba(231, 238, 246, 0.76);
  --muted: rgba(231, 238, 246, 0.62);
  --cyan: #7fd9ff;
  --moon: #dfeeff;
  --gold: #e7c784;
  --violet: #8c83ff;
  --green: #79f0d7;
  --rose: #ff8daa;
  --shadow: 0 25px 80px rgba(0,0,0,0.35);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --serif: 'Noto Serif SC', serif;
  --sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --content-max: 1880px;
  --content-wide: 2160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top, rgba(79, 176, 255, 0.14), transparent 28%),
    radial-gradient(circle at 80% 16%, rgba(231, 199, 132, 0.08), transparent 16%),
    linear-gradient(180deg, #070a10 0%, #06080c 100%);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: hidden;
}

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

.site-noise,
.site-gradient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}
.site-noise {
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 160px 160px;
  mask-image: radial-gradient(circle at center, #000 48%, transparent 100%);
}
.site-gradient {
  z-index: -1;
  background:
    radial-gradient(circle at 18% 10%, rgba(127, 217, 255, 0.12), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(140, 131, 255, 0.12), transparent 18%),
    radial-gradient(circle at 50% 65%, rgba(231, 199, 132, 0.06), transparent 20%);
}

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 2.8vw;
  backdrop-filter: blur(18px);
  background: rgba(5, 9, 14, 0.58);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #fff, var(--cyan) 42%, rgba(127,217,255,.2) 70%, transparent 74%);
  box-shadow: 0 0 28px rgba(127, 217, 255, 0.45);
}
.brand-text {
  display: grid;
  gap: 2px;
}
.brand-text strong {
  font-size: 1rem;
  letter-spacing: 0.1em;
}
.brand-text em {
  font-style: normal;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}
.nav > a {
  color: var(--text-2);
  font-size: 0.92rem;
  padding: 8px 10px;
  border-radius: 999px;
  transition: all .25s ease;
}
.nav > a:hover,
.more-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  color: #fff;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  margin: 4px auto;
}
.music-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(127,217,255,0.25);
  background: rgba(12, 20, 32, 0.72);
  color: var(--moon);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
}
.music-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(127, 217, 255, 0.9);
}
.auth-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease, background .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, #86dbff, #b5c8ff 56%, #e7c784);
  color: #081018;
  box-shadow: 0 16px 40px rgba(120, 197, 255, 0.28);
}
.btn-secondary {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.12);
  color: var(--text);
}
.btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.12);
  color: var(--text-2);
}
.btn-sm {
  min-height: 40px;
  padding: 0 16px;
  font-size: 0.92rem;
}

.section {
  padding: 108px 3vw;
  position: relative;
}
.section-tight {
  padding-top: 88px;
}
.section-heading {
  max-width: 860px;
  margin: 0 auto 34px;
}
.section-heading.align-left {
  max-width: var(--content-wide);
}
.eyebrow {
  margin: 0 0 14px;
  font-size: 0.82rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cyan);
}
.section h2,
.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.12;
}
.hero h1 {
  font-size: clamp(3.2rem, 6vw, 6rem);
}
.section h2 {
  font-size: clamp(2rem, 3.3vw, 3.5rem);
}
.section-desc {
  margin: 16px 0 0;
  color: var(--text-2);
  line-height: 1.9;
  font-size: 1.06rem;
}
.section-desc.narrow { max-width: 980px; }
.align-left { text-align: left; }
.heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.more-link {
  color: var(--moon);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.hero {
  min-height: calc(100vh - 84px);
  display: flex;
  align-items: flex-end;
  padding-top: 74px;
  overflow: hidden;
}
.hero-video-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.38;
}
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4,8,14,.48) 0%, rgba(4,8,14,.54) 28%, rgba(4,8,14,.92) 100%),
    radial-gradient(circle at center, transparent 0%, rgba(4,8,14,.4) 68%, rgba(4,8,14,.92) 100%);
}
.hero-shell {
  position: relative;
  z-index: 1;
  width: min(var(--content-wide), 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: end;
}
.hero-copy {
  max-width: 1120px;
}
.hero-desc {
  margin: 20px 0 0;
  font-size: clamp(1.05rem, 1.7vw, 1.34rem);
  line-height: 1.9;
  color: var(--moon);
  max-width: 760px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.meta-item {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  padding: 10px 14px;
  color: var(--text-2);
}
.meta-item span {
  color: var(--cyan);
  font-weight: 800;
}
.hero-marquee {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
}
.marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 40px;
  min-width: 200%;
  padding: 16px 0;
  animation: marquee 24s linear infinite;
  color: rgba(239,245,255,0.88);
  letter-spacing: 0.12em;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.keyword-row {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--moon);
  font-size: .88rem;
}
.tag-lg {
  min-height: 46px;
  padding: 0 18px;
  font-size: .95rem;
}

.video-grid {
  width: min(96vw, var(--content-wide));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(24, minmax(0, 1fr));
  gap: 24px;
}
.video-card {
  position: relative;
  overflow: hidden;
  min-height: 260px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(145deg, rgba(20, 32, 48, .95), rgba(8, 12, 18, .95));
  box-shadow: var(--shadow);
}
.video-card.featured {
  grid-column: span 12;
  min-height: 560px;
}
.video-card.compact {
  grid-column: span 12;
  min-height: 560px;
}
.video-card.small {
  grid-column: span 6;
  min-height: 340px;
}
.card-cover {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1);
  transition: transform .45s ease;
}
.video-card:hover .card-cover,
.image-card:hover .card-cover {
  transform: scale(1.04);
}
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,10,15,.08) 0%, rgba(5,10,15,.55) 58%, rgba(5,10,15,.94) 100%);
}
.card-body {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
}
.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  color: rgba(255,255,255,.78);
  font-size: .84rem;
}
.card-title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 2rem);
}
.card-desc {
  margin: 0;
  color: var(--text-2);
  line-height: 1.75;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--moon);
}

.music-layout {
  width: min(96vw, var(--content-wide));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(360px, 520px) minmax(0, 1fr);
  gap: 28px;
}
.music-player,
.track-item,
.novel-card,
.image-card,
.cta-card {
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(9, 15, 25, 0.72);
  box-shadow: var(--shadow);
}
.music-player {
  border-radius: var(--radius-lg);
  padding: 22px;
  position: sticky;
  top: 110px;
  align-self: start;
}
.player-cover {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 22px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.95), rgba(127,217,255,.5) 18%, transparent 22%),
    linear-gradient(140deg, rgba(127,217,255,.95), rgba(108,88,255,.9) 54%, rgba(231,199,132,.82));
  box-shadow: inset 0 0 80px rgba(255,255,255,0.08);
}
.player-meta h3 {
  margin: 18px 0 8px;
  font-family: var(--serif);
  font-size: 1.7rem;
}
.player-meta p {
  margin: 0;
  color: var(--text-2);
}
.player-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
}
.play-btn,
.control-btn {
  border: none;
  border-radius: 999px;
  cursor: pointer;
}
.play-btn {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--cyan), #d3e7ff 58%, var(--gold));
  color: #081018;
  font-size: 1.15rem;
  font-weight: 800;
}
.control-btn {
  width: 46px;
  height: 46px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
}
.player-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  color: var(--muted);
}
.track-list {
  display: grid;
  gap: 12px;
}
.track-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.track-item:hover,
.track-item.active {
  border-color: rgba(127,217,255,0.28);
  background: rgba(18, 28, 44, 0.88);
  transform: translateY(-1px);
}
.track-thumb {
  width: 72px;
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  background: linear-gradient(140deg, rgba(127,217,255,.8), rgba(140,131,255,.86) 48%, rgba(231,199,132,.78));
}
.track-meta h4 {
  margin: 0 0 8px;
  font-size: 1rem;
}
.track-meta p {
  margin: 0;
  color: var(--text-2);
  font-size: .93rem;
}
.track-duration {
  color: var(--moon);
  font-size: .92rem;
}

.image-grid {
  width: min(96vw, var(--content-wide));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(20, minmax(0, 1fr));
  gap: 24px;
}
.image-card {
  grid-column: span 5;
  min-height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}
.image-card.tall { min-height: 500px; }
.image-card .card-title { font-size: 1.5rem; }

.novel-grid {
  width: min(96vw, var(--content-wide));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(20, minmax(0, 1fr));
  gap: 24px;
}
.novel-card {
  border-radius: var(--radius-lg);
  padding: 24px;
  grid-column: span 5;
}
.novel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}
.novel-card h3 {
  margin: 14px 0 10px;
  font-family: var(--serif);
  font-size: 1.46rem;
}
.novel-card p {
  margin: 0;
  color: var(--text-2);
  line-height: 1.8;
}
.chapter-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
}
.chapter-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--moon);
  font-size: .94rem;
}

.cta-card {
  width: min(96vw, var(--content-wide));
  margin: 0 auto;
  padding: 34px;
  border-radius: calc(var(--radius-xl) + 2px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background:
    radial-gradient(circle at left top, rgba(127,217,255,0.16), transparent 34%),
    linear-gradient(135deg, rgba(10,18,30,.92), rgba(8,12,20,.92));
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.footer {
  padding: 36px 4.8vw 48px;
}
.footer-inner {
  width: min(96vw, var(--content-wide));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 20px;
  align-items: end;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 30px;
}
.footer-brand strong { font-size: 1rem; }
.footer-brand p,
.footer-copyright {
  margin: 8px 0 0;
  color: var(--muted);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
}
.footer-nav a { color: var(--text-2); }
.footer-auth { justify-content: flex-end; }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


@media (min-width: 1600px) {
  .section {
    padding-inline: 2.2vw;
  }
  .card-body {
    padding: 30px;
  }
  .track-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 1920px) {
  .section {
    padding-inline: 2vw;
  }
  .video-grid,
  .music-layout,
  .image-grid,
  .novel-grid,
  .cta-card,
  .footer-inner {
    width: min(97vw, var(--content-wide));
  }
}

@media (max-width: 1120px) {
  .hero-shell,
  .music-layout,
  .cta-card,
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .music-player { position: relative; top: auto; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-block; }
  .nav {
    position: absolute;
    top: calc(100% + 12px);
    right: 4.2vw;
    width: min(92vw, 360px);
    display: none;
    padding: 16px;
    border-radius: 22px;
    background: rgba(7, 12, 18, 0.96);
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
  }
  .nav.open { display: flex; }
  .nav > a,
  .music-pill,
  .nav-auth .btn { width: 100%; justify-content: center; }
  .video-card.featured,
  .video-card.compact,
  .video-card.small {
    grid-column: span 16;
  }
  .image-card,
  .novel-card {
    grid-column: span 20;
  }
}

@media (max-width: 640px) {
  .header { padding-inline: 16px; }
  .section { padding: 82px 16px; }
  .hero {
    min-height: calc(100vh - 78px);
    padding-top: 40px;
    align-items: center;
  }
  .hero h1 { font-size: 2.8rem; }
  .hero-desc { font-size: 1rem; }
  .hero-meta { gap: 10px; }
  .meta-item { width: 100%; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .track-item { grid-template-columns: 56px minmax(0, 1fr); }
  .track-duration { display: none; }
  .cta-card { padding: 24px; }
}