@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700;900&family=ZCOOL+KuaiLe&display=swap");

:root {
  --au-ink: #10262b;
  --au-deep: #163a42;
  --au-cyan: #26d6c4;
  --au-cyan-soft: #7aefe2;
  --au-rose: #ff7d8a;
  --au-peach: #ffb39a;
  --au-mist: #eef8f6;
  --au-fog: #d7ebe7;
  --au-paper: #f4fbf9;
  --au-muted: #5a7478;
  --au-line: rgba(22, 58, 66, 0.12);
  --au-glass: rgba(255, 255, 255, 0.55);
  --au-glass-strong: rgba(255, 255, 255, 0.78);
  --au-shadow: 0 18px 48px rgba(16, 38, 43, 0.14);
  --au-radius: 22px;
  --au-max: 1120px;
  --au-font-display: "ZCOOL KuaiLe", "Noto Sans SC", sans-serif;
  --au-font-body: "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--au-font-body);
  color: var(--au-ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(38, 214, 196, 0.22), transparent 55%),
    radial-gradient(ellipse 70% 45% at 100% 0%, rgba(255, 125, 138, 0.16), transparent 50%),
    linear-gradient(180deg, #f7fcfb 0%, var(--au-paper) 40%, #eaf6f3 100%);
  line-height: 1.85;
  font-size: 15px;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--au-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--au-rose);
}

.au-frame {
  width: min(100% - 32px, var(--au-max));
  margin-inline: auto;
}

/* Promo strip */
.au-promo-band {
  background: linear-gradient(90deg, rgba(22, 58, 66, 0.94), rgba(16, 38, 43, 0.9));
  padding: 12px 0 8px;
  border-bottom: 1px solid rgba(38, 214, 196, 0.25);
}

.au-promo-host {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 14px;
}

.au-promo-cell {
  width: 70px;
  text-align: center;
}

.au-promo-thumb {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
  transition: transform 0.2s ease;
}

.au-promo-link:hover .au-promo-thumb {
  transform: translateY(-3px) scale(1.05);
}

.au-promo-caption {
  display: block;
  margin-top: 4px;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.72);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Masthead */
.au-masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: var(--au-glass-strong);
  border-bottom: 1px solid var(--au-line);
}

.au-mast-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 8px 0;
}

.au-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--au-ink);
}

.au-brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 6px 16px rgba(38, 214, 196, 0.35);
}

.au-brand-name {
  font-family: var(--au-font-display);
  font-size: 1.45rem;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, var(--au-deep), var(--au-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.au-nav-panel {
  display: none;
  gap: 18px;
  align-items: center;
}

.au-nav-panel a {
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--au-deep);
}

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

.au-nav-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--au-line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}

.au-nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--au-ink);
  border-radius: 2px;
  transition: 0.2s ease;
}

.au-nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.au-nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.au-nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.au-nav-panel.is-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  left: 16px;
  right: 16px;
  top: calc(100% + 6px);
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--au-shadow);
  border: 1px solid var(--au-line);
}

/* Sticky download dock */
.au-sticky-dock {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 35;
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.28s ease, opacity 0.28s ease;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--au-line);
  padding: 8px 12px;
}

.au-sticky-dock.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

body.au-dock-open {
  scroll-padding-top: 140px;
}

.au-dock-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  width: min(100%, var(--au-max));
  margin: 0 auto;
  justify-items: center;
}

.au-dock-item img {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(16, 38, 43, 0.12);
}

/* Hero */
.au-hero {
  position: relative;
  padding: 36px 0 28px;
  overflow: hidden;
}

.au-hero::before {
  content: "";
  position: absolute;
  inset: 8% -20% auto auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(38, 214, 196, 0.35), transparent 70%);
  animation: au-drift 9s ease-in-out infinite alternate;
  pointer-events: none;
}

.au-hero::after {
  content: "";
  position: absolute;
  inset: auto auto 0 -10%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 125, 138, 0.28), transparent 70%);
  animation: au-drift 11s ease-in-out infinite alternate-reverse;
  pointer-events: none;
}

@keyframes au-drift {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(24px, -18px);
  }
}

.au-hero-stage {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
  align-items: center;
}

.au-hero-copy h1 {
  margin: 0 0 12px;
  font-family: var(--au-font-display);
  font-size: clamp(1.9rem, 7vw, 2.8rem);
  line-height: 1.25;
  letter-spacing: 0.02em;
}

.au-hero-copy p {
  margin: 0;
  color: var(--au-muted);
  font-size: 0.98rem;
  max-width: 36em;
}

.au-hero-visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--au-shadow);
  isolation: isolate;
}

.au-hero-visual img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
  transform: scale(1.02);
  animation: au-soft-zoom 12s ease-in-out infinite alternate;
}

@keyframes au-soft-zoom {
  from {
    transform: scale(1.02);
  }
  to {
    transform: scale(1.08);
  }
}

.au-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(16, 38, 43, 0.45));
  pointer-events: none;
}

.au-shine {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.28) 48%, transparent 62%);
  transform: translateX(-120%);
  animation: au-shine 5.5s ease-in-out infinite;
  pointer-events: none;
  z-index: 2;
}

@keyframes au-shine {
  0%,
  40% {
    transform: translateX(-120%);
  }
  70%,
  100% {
    transform: translateX(120%);
  }
}

/* Sections */
.au-section {
  padding: 42px 0;
}

.au-section-title {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 4.5vw, 1.85rem);
  line-height: 1.35;
}

.au-section-lead {
  margin: 0 0 22px;
  color: var(--au-muted);
}

.au-prose p {
  margin: 0 0 1.05em;
  text-align: justify;
  word-break: break-word;
}

.au-prose h2,
.au-prose h3 {
  margin: 1.6em 0 0.7em;
  line-height: 1.4;
}

.au-prose a {
  color: var(--au-deep);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(38, 214, 196, 0.7);
}

/* Mosaic / cards */
.au-mosaic {
  display: grid;
  gap: 18px;
}

.au-glass-card {
  background: var(--au-glass);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: var(--au-radius);
  padding: 18px;
  box-shadow: 0 10px 28px rgba(16, 38, 43, 0.06);
  backdrop-filter: blur(10px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.au-glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--au-shadow);
}

.au-glass-card h3 {
  margin: 12px 0 8px;
  font-size: 1.08rem;
}

.au-glass-card p {
  margin: 0;
  color: var(--au-muted);
  font-size: 0.94rem;
}

.au-glass-card img {
  width: 100%;
  border-radius: 16px;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top;
}

.au-split {
  display: grid;
  gap: 20px;
  align-items: center;
}

.au-split img {
  width: 100%;
  border-radius: 24px;
  box-shadow: var(--au-shadow);
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top;
}

.au-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
}

.au-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(38, 214, 196, 0.14);
  color: var(--au-deep);
  font-size: 0.82rem;
  font-weight: 500;
}

.au-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.au-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  border: none;
  cursor: pointer;
}

.au-btn-primary {
  background: linear-gradient(135deg, var(--au-cyan), #1ab5a6);
  color: #05332e;
  box-shadow: 0 10px 24px rgba(38, 214, 196, 0.35);
}

.au-btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--au-line);
  color: var(--au-deep);
}

.au-btn-rose {
  background: linear-gradient(135deg, var(--au-rose), var(--au-peach));
  color: #4a1520;
  box-shadow: 0 10px 24px rgba(255, 125, 138, 0.3);
}

.au-wave-band {
  position: relative;
  margin: 20px 0;
  padding: 36px 0;
  background:
    linear-gradient(135deg, rgba(22, 58, 66, 0.95), rgba(16, 70, 78, 0.92)),
    url("feature-comic-serial.jpg") center / cover;
  background-blend-mode: multiply;
  color: #eefcf9;
  overflow: hidden;
}

.au-wave-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(38, 214, 196, 0.35), transparent 45%);
  pointer-events: none;
}

.au-wave-band .au-frame {
  position: relative;
  z-index: 1;
}

.au-wave-band h2 {
  margin-top: 0;
  color: #fff;
}

.au-wave-band p {
  color: rgba(238, 252, 249, 0.88);
}

.au-stat-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.au-stat {
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.au-stat strong {
  display: block;
  font-family: var(--au-font-display);
  font-size: 1.4rem;
  color: var(--au-cyan-soft);
}

.au-stat span {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.75);
}

/* Breadcrumb */
.au-crumb {
  padding: 16px 0 0;
  font-size: 0.86rem;
  color: var(--au-muted);
}

.au-crumb a {
  color: var(--au-deep);
  text-decoration: none;
}

.au-crumb span {
  margin: 0 6px;
  opacity: 0.5;
}

/* Legal pages */
.au-legal {
  padding: 12px 0 56px;
}

.au-legal h1 {
  font-family: var(--au-font-display);
  font-size: clamp(1.7rem, 5vw, 2.3rem);
  margin: 8px 0 16px;
}

.au-legal h2 {
  margin-top: 1.8em;
  font-size: 1.25rem;
}

.au-legal h3 {
  margin-top: 1.3em;
  font-size: 1.05rem;
}

/* Error pages */
.au-error {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 48px 0;
}

.au-error-code {
  font-family: var(--au-font-display);
  font-size: clamp(4rem, 18vw, 7rem);
  line-height: 1;
  background: linear-gradient(120deg, var(--au-cyan), var(--au-rose));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin: 0;
}

.au-error p {
  color: var(--au-muted);
  max-width: 28em;
  margin: 12px auto 22px;
}

/* Footer */
.au-footer {
  margin-top: 24px;
  padding: 36px 0 28px;
  background: linear-gradient(180deg, transparent, rgba(16, 38, 43, 0.06));
  border-top: 1px solid var(--au-line);
}

.au-footer-grid {
  display: grid;
  gap: 18px;
}

.au-footer h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.au-footer a {
  display: inline-block;
  margin: 4px 0;
  text-decoration: none;
  color: var(--au-muted);
  font-size: 0.9rem;
}

.au-footer a:hover {
  color: var(--au-deep);
}

.au-copy {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--au-line);
  font-size: 0.82rem;
  color: var(--au-muted);
  text-align: center;
}

/* Reveal animation */
.au-reveal {
  animation: au-rise 0.7s ease both;
}

@keyframes au-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.au-delay-1 {
  animation-delay: 0.12s;
}

.au-delay-2 {
  animation-delay: 0.24s;
}

.au-delay-3 {
  animation-delay: 0.36s;
}

@media (min-width: 768px) {
  body {
    font-size: 16px;
  }

  .au-nav-toggle {
    display: none;
  }

  .au-nav-panel {
    display: flex;
    position: static;
    flex-direction: row;
    padding: 0;
    border: 0;
    box-shadow: none;
    background: transparent;
  }

  .au-hero-stage {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 36px;
  }

  .au-hero-visual img {
    aspect-ratio: 3 / 4;
    max-height: 520px;
  }

  .au-mosaic {
    grid-template-columns: repeat(3, 1fr);
  }

  .au-split {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .au-split.is-flip .au-split-media {
    order: 2;
  }

  .au-stat-strip {
    grid-template-columns: repeat(4, 1fr);
  }

  .au-dock-grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .au-dock-item img {
    width: 52px;
    height: 52px;
  }

  .au-footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  body.au-dock-open {
    scroll-padding-top: 120px;
  }
}

@media (min-width: 1024px) {
  .au-hero {
    padding: 56px 0 40px;
  }

  .au-section {
    padding: 56px 0;
  }
}