/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(16, 13, 10, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--color-border);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-sm);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
  font-weight: 600;
}

.site-nav__logo {
  height: 44px;
  width: auto;
}

.site-nav__links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
}

.site-nav__links a {
  font-size: 0.95rem;
  color: var(--color-text-dim);
}

.site-nav__links a.is-active,
.site-nav__links a:hover {
  color: var(--color-text-muted);
}

.site-nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.site-nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-muted);
}

@media (min-width: 768px) {
  .site-nav__links {
    display: flex;
  }

  .site-nav__toggle {
    display: none;
  }
}

.site-nav__mobile-menu {
  display: none;
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-panel);
  border-bottom: 2px solid var(--color-border);
  padding: var(--space-sm);
}

.site-nav__mobile-menu.is-open {
  display: block;
}

.site-nav__mobile-menu a {
  display: block;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(139, 105, 20, 0.3);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  text-decoration: none;
}

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

.btn--primary {
  background: linear-gradient(180deg, #a82828 0%, var(--color-accent) 100%);
  color: #fff;
  border-color: #8b2020;
  box-shadow: 0 4px 0 #5a1515, 0 8px 24px rgba(192, 64, 64, 0.35);
}

.btn--secondary {
  background: var(--color-panel-raised);
  color: var(--color-text);
  border-color: var(--color-border-light);
  box-shadow: 0 4px 0 #3a3020;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* Panel / scroll card */
.panel {
  background: var(--color-panel);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  position: relative;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px dashed rgba(201, 168, 106, 0.25);
  border-radius: 2px;
  pointer-events: none;
}

.panel--parchment {
  background: linear-gradient(180deg, #2a2418 0%, var(--color-panel) 100%);
}

/* Hero — 宣传海报布局 */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
  filter: saturate(0.85);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(12, 10, 8, 0.94) 0%,
    rgba(12, 10, 8, 0.7) 50%,
    rgba(12, 10, 8, 0.5) 100%
  );
  z-index: 1;
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-lg);
  align-items: center;
  padding: var(--space-lg) 0 var(--space-xl);
}

@media (min-width: 960px) {
  .hero__grid {
    grid-template-columns: 1fr min(42vw, 420px);
    padding: var(--space-xl) 0;
  }
}

.hero__copy {
  max-width: 36rem;
}

.hero__poster-wrap {
  margin: 0;
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.55);
  background: var(--color-ink);
}

.hero__poster {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.hero__logo {
  width: min(300px, 75vw);
  margin-bottom: var(--space-md);
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.5));
}

.hero__tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  color: var(--color-text-muted);
  max-width: 28rem;
  margin: 0 0 var(--space-md);
  line-height: 1.5;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
}

.badge {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-dim);
  background: rgba(31, 24, 20, 0.8);
}

/* Feature cards */
.feature-card {
  overflow: hidden;
  padding: 0;
}

.feature-card__img {
  width: 100%;
  height: auto;
  display: block;
  border-bottom: 1px solid rgba(139, 105, 20, 0.35);
}

.feature-card__body {
  padding: var(--space-md);
}

.feature-card__title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.feature-card__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-dim);
}

/* Story */
.story-block {
  display: grid;
  gap: var(--space-lg);
  align-items: stretch;
}

@media (min-width: 900px) {
  .story-block {
    grid-template-columns: 1.1fr 1fr;
  }
}

.story-block__visual {
  padding: 0;
  overflow: hidden;
}

.story-block__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 240px;
}

.story-block__subtitle {
  font-family: var(--font-serif);
  margin: var(--space-md) 0 0;
}

.story-block__quote {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--color-accent-soft);
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-md);
  margin: var(--space-md) 0;
}

.chapter-list {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0 0;
}

.chapter-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(139, 105, 20, 0.25);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.chapter-list__status {
  color: var(--color-border-light);
  font-size: 0.85rem;
}

/* Video */
.video-grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 900px) {
  .video-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.video-card {
  padding: var(--space-md);
}

.video-card__title {
  font-family: var(--font-serif);
  margin: 0 0 var(--space-sm);
  font-size: 1.1rem;
}

.video-card__player {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(139, 105, 20, 0.4);
}

/* Cast grid */
.cast-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

@media (min-width: 640px) {
  .cast-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.cast-card {
  margin: 0;
  text-align: center;
  background: var(--color-panel);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.cast-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
}

.cast-card figcaption {
  padding: 0.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.carousel--wide .carousel__slide img {
  aspect-ratio: 16 / 10;
}

.btn-group--center {
  justify-content: center;
  margin: var(--space-lg) 0;
}

.faq-panel {
  max-width: 720px;
  margin: 0 auto;
}

.faq-panel__title {
  margin-top: 0;
  font-family: var(--font-serif);
}

.studio-card {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.studio-card__hint {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  margin-top: var(--space-md);
}

/* Media carousel */
.carousel {
  position: relative;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-ink);
}

.carousel__track {
  display: flex;
  transition: transform 0.4s ease;
}

.carousel__slide {
  flex: 0 0 100%;
}

.carousel__slide img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center top;
}

.carousel__nav {
  position: absolute;
  bottom: var(--space-sm);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--color-border-light);
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.carousel__dot.is-active {
  background: var(--color-border-light);
}

.carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: 2px solid var(--color-border);
  background: rgba(16, 13, 10, 0.85);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.25rem;
}

.carousel__arrow--prev {
  left: var(--space-sm);
}

.carousel__arrow--next {
  right: var(--space-sm);
}

/* Support tiers */
.tier-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

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

.tier-card {
  text-align: center;
}

.tier-card__price {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  color: var(--color-border-light);
  margin: 0.5rem 0;
}

.faq-item {
  margin-bottom: var(--space-sm);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 0.75rem 0;
}

.faq-item p {
  margin: 0 0 var(--space-sm);
  color: var(--color-text-dim);
  font-size: 0.95rem;
}

/* Mobile sticky CTA */
.mobile-cta {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  gap: 0.5rem;
  padding: 0.65rem 1rem;
  background: rgba(16, 13, 10, 0.96);
  border-top: 2px solid var(--color-border);
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.4);
}

.mobile-cta .btn {
  flex: 1;
  padding: 0.7rem 0.5rem;
  font-size: 0.9rem;
}

@media (max-width: 360px) {
  .mobile-cta {
    flex-direction: column;
    height: auto;
    padding: 0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-bottom));
  }

  body.has-mobile-cta {
    padding-bottom: calc(var(--mobile-cta-height) + 2.5rem);
  }
}

@media (min-width: 768px) {
  .mobile-cta {
    display: none;
  }
}

/* Footer */
.site-footer {
  border-top: 2px solid var(--color-border);
  padding: var(--space-lg) 0;
  background: var(--color-bg-deep);
  font-size: 0.9rem;
  color: var(--color-text-dim);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer__legal {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(139, 105, 20, 0.2);
  font-size: 0.8rem;
  line-height: 1.6;
}