/* ============================================================
   hero.css —— 首屏 Hero / 视频轮播 / 数据条
   ============================================================ */

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  background: radial-gradient(120% 90% at 50% 0%, var(--red-900) 0%, var(--ink-900) 62%);
}

/* 背景照片层（视差） */
.hero-bg {
  position: absolute;
  inset: -8% 0;
  z-index: -3;
  background-size: cover;
  background-position: center;
  opacity: 0.34;
  filter: saturate(0.85) contrast(1.05);
  will-change: transform;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20, 6, 10, 0.62) 0%, rgba(20, 6, 10, 0.28) 42%, var(--ink-900) 96%),
    radial-gradient(90% 70% at 50% 30%, rgba(109, 11, 22, 0.32), transparent 70%);
}

/* 粒子画布层 */
.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* 光晕装饰 */
.hero-glow {
  position: absolute;
  z-index: -2;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
}
.hero-glow.g1 {
  width: 46vw;
  height: 46vw;
  left: -12vw;
  top: 8vh;
  background: rgba(200, 16, 46, 0.32);
  animation: glow-drift 14s ease-in-out infinite alternate;
}
.hero-glow.g2 {
  width: 38vw;
  height: 38vw;
  right: -10vw;
  bottom: -6vh;
  background: rgba(212, 165, 55, 0.2);
  animation: glow-drift 18s ease-in-out infinite alternate-reverse;
}

@keyframes glow-drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(4vw, -3vh, 0) scale(1.12); }
}

.hero-inner {
  position: relative;
  width: min(var(--container), 100% - 2.6rem);
  margin-inline: auto;
  padding: calc(var(--header-h) + 3rem) 0 5.5rem;
  text-align: center;
  z-index: 2;
}

/* 主标题 */
.hero-title {
  font-size: clamp(3.2rem, 13vw, 8.6rem);
  margin: 0.28em 0 0.16em;
  letter-spacing: 0.16em;
  text-indent: 0.16em;
  font-weight: 800;
  line-height: 1.12;
  text-shadow: 0 10px 46px rgba(0, 0, 0, 0.5);
}

/* 标题描边 + 渐变流光 */
.hero-title .char {
  display: inline-block;
  animation: char-rise 1.1s var(--ease-out) both;
}
.hero-title .char:nth-child(2) { animation-delay: 0.12s; }
.hero-title .char:nth-child(3) { animation-delay: 0.24s; }
.hero-title .char:nth-child(4) { animation-delay: 0.36s; }

@keyframes char-rise {
  from { opacity: 0; transform: translateY(0.55em) rotate(4deg) scale(0.92); }
  to { opacity: 1; transform: none; }
}

.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(1.45rem, 5.2vw, 2.85rem);
  letter-spacing: 0.52em;
  text-indent: 0.52em;
  color: var(--cream);
  margin: 0 0 0.4em;
  opacity: 0;
  animation: fade-up 1.1s 0.55s var(--ease-out) forwards;
}

.hero-lead {
  max-width: 620px;
  margin: 1.4rem auto 2.2rem;
  font-size: clamp(0.98rem, 2.4vw, 1.14rem);
  color: var(--cream-dim);
  opacity: 0;
  animation: fade-up 1.1s 0.8s var(--ease-out) forwards;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  opacity: 0;
  animation: fade-up 1.1s 1.05s var(--ease-out) forwards;
}

@media (max-width: 640px) {
  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    width: min(360px, 100%);
    margin-inline: auto;
  }
  .hero-actions .btn {
    padding: 0.85em 1em;
    font-size: 0.95rem;
  }
  .hero-actions .btn-primary {
    grid-column: 1 / -1;
  }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: none; }
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 1.6rem;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--gold-400);
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  opacity: 0.85;
  text-align: center;
}
.scroll-hint .line {
  width: 1px;
  height: 44px;
  margin: 0.65rem auto 0;
  background: linear-gradient(180deg, var(--gold-400), transparent);
  overflow: hidden;
  position: relative;
}
.scroll-hint .line::after {
  content: "";
  position: absolute;
  left: 0;
  top: -40%;
  width: 100%;
  height: 40%;
  background: var(--white);
  animation: hint-drop 2s var(--ease-out) infinite;
}
@keyframes hint-drop {
  0% { top: -40%; opacity: 1; }
  80%, 100% { top: 110%; opacity: 0.2; }
}

/* ---------- 数据条 ---------- */
.stats-bar {
  position: relative;
  z-index: 4;
  margin-top: -3.2rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(240, 192, 96, 0.22);
  border: 1px solid rgba(240, 192, 96, 0.28);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.stat-cell {
  background: rgba(31, 10, 16, 0.92);
  padding: 1.35rem 0.8rem;
  text-align: center;
}

.stat-value {
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 4.6vw, 2.55rem);
  font-weight: 700;
  color: var(--gold-400);
  line-height: 1.15;
}

.stat-label {
  margin-top: 0.25rem;
  font-size: 0.86rem;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: var(--cream-dim);
  opacity: 0.82;
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar { margin-top: -2.2rem; }
}

/* ---------- 视频轮播 ---------- */
.carousel-section {
  padding-top: clamp(4.2rem, 9vw, 7rem);
}

.carousel {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
}

.carousel-viewport {
  position: relative;
  border-radius: clamp(var(--radius), 2vw, 20px);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--ink-700);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(240, 192, 96, 0.2);
  touch-action: pan-y;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.9s var(--ease-out), transform 1.4s var(--ease-out);
  pointer-events: none;
}

.carousel-slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  z-index: 2;
}

.carousel-slide .slide-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Ken Burns 缓动 */
.carousel-slide.is-active .slide-media {
  animation: kenburns 12s ease-in-out both;
}
@keyframes kenburns {
  from { transform: scale(1) translate3d(0, 0, 0); }
  to { transform: scale(1.09) translate3d(-1.6%, -1.2%, 0); }
}

.carousel-slide .slide-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: clamp(1.2rem, 4vw, 2.6rem);
  background: linear-gradient(180deg, rgba(20, 6, 10, 0.05) 30%, rgba(20, 6, 10, 0.82));
  cursor: pointer;
}

.slide-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.3em 0.95em;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  text-indent: 0.24em;
  color: var(--gold-300);
  background: rgba(200, 16, 46, 0.55);
  border: 1px solid rgba(240, 192, 96, 0.45);
  margin-bottom: 0.85em;
}

.slide-title {
  font-size: clamp(1.35rem, 3.8vw, 2.35rem);
  margin: 0;
  color: var(--white);
  text-shadow: 0 6px 28px rgba(0, 0, 0, 0.55);
}

.slide-subtitle {
  margin: 0.45em 0 0;
  color: var(--cream-dim);
  font-size: clamp(0.92rem, 2.2vw, 1.08rem);
  letter-spacing: 0.1em;
  max-width: 56ch;
}

.slide-play {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%) scale(0.92);
  width: clamp(54px, 8.5vw, 76px);
  height: clamp(54px, 8.5vw, 76px);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(200, 16, 46, 0.52);
  border: 2px solid rgba(255, 255, 255, 0.7);
  color: var(--white);
  opacity: 0;
  transition: opacity 0.35s, transform 0.45s var(--ease-spring);
  z-index: 3;
}
.carousel-slide.is-active .slide-play { opacity: 1; }
.carousel-viewport:hover .slide-play {
  transform: translate(-50%, -50%) scale(1);
}
.slide-play svg { width: 42%; height: 42%; margin-left: 6%; }
.slide-play::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.55);
  animation: play-pulse 2.2s var(--ease-out) infinite;
}
@keyframes play-pulse {
  from { transform: scale(1); opacity: 0.8; }
  to { transform: scale(1.55); opacity: 0; }
}

/* 轮播控件 */
.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(20, 6, 10, 0.55);
  border: 1px solid rgba(240, 192, 96, 0.4);
  color: var(--gold-300);
  transition: background-color 0.25s, transform 0.25s var(--ease-out);
}
.carousel-nav:hover {
  background: rgba(200, 16, 46, 0.75);
  transform: translateY(-50%) scale(1.08);
}
.carousel-nav.prev { left: clamp(0.5rem, 1.8vw, 1.2rem); }
.carousel-nav.next { right: clamp(0.5rem, 1.8vw, 1.2rem); }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.65rem;
  margin-top: 1.35rem;
}

.carousel-dots button {
  width: 26px;
  height: 8px;
  border-radius: 999px;
  background: rgba(240, 192, 96, 0.28);
  transition: width 0.35s var(--ease-out), background-color 0.3s;
}
.carousel-dots button.is-active {
  width: 48px;
  background: linear-gradient(90deg, var(--red-500), var(--gold-400));
}

@media (max-width: 640px) {
  .carousel-nav { width: 38px; height: 38px; }
  .slide-play { opacity: 0.92; }
}