/* ============================================================
   STARFINITY 交互增强样式：视频/动图/懒加载/鼠标效果
   ============================================================ */

/* --- Scroll progress bar --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--brand-blue), var(--smart-blue));
  z-index: var(--z-modal);
  border-radius: 0 3px 3px 0;
  transition: width .08s linear;
}

/* --- Hero video background --- */
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .45;
  transform: scale(1.05);
}

.hero-media .hero-fallback {
  display: none;
}

@media (prefers-reduced-motion: reduce) {
  .hero-media video {
    display: none;
  }
  .hero-media .hero-fallback {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: .32;
  }
}

/* --- Hero mouse glow --- */
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: transparent;
  transition: background .3s ease;
}

/* --- Lazy image placeholder --- */
.img-wrap.lazy {
  position: relative;
  overflow: hidden;
  background: var(--bg-light);
  aspect-ratio: 4/3;
}

.lazy-placeholder {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, #eef2f7 8%, #e2e8f0 18%, #eef2f7 33%);
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
}

@keyframes shimmer {
  to { background-position: -200% 0; }
}

.img-wrap.lazy::after {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity .7s var(--ease-out), transform 1.2s var(--ease-out);
}

.img-wrap.lazy.is-loaded::after {
  opacity: 1;
  transform: scale(1);
  background-image: inherit;
}

.img-wrap.lazy.is-loaded .lazy-placeholder {
  opacity: 0;
  transition: opacity .6s ease;
}

/* --- Animated webp tiles (产线实况) --- */
.live-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

@media (min-width: 900px) {
  .live-strip {
    grid-template-columns: repeat(5, 1fr);
  }
}

.live-tile {
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 16/9;
  border: 1px solid var(--line-light);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
  background: var(--bg-light);
}

.live-tile:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-md);
}

.live-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.live-tile .live-label {
  position: absolute;
  left: var(--sp-3);
  bottom: var(--sp-3);
  padding: .25rem .625rem;
  border-radius: var(--r-full);
  background: rgba(10,22,51,.72);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 600;
  border: 1px solid rgba(255,255,255,.18);
}

.live-tile::before {
  content: "● LIVE";
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
  padding: .1875rem .5rem;
  border-radius: var(--r-full);
  background: rgba(18,183,106,.9);
  color: #fff;
  font-size: .625rem;
  font-weight: 800;
  letter-spacing: .08em;
  z-index: 2;
}

/* --- Tilt cards --- */
[data-tilt] {
  will-change: transform;
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}

/* --- Data band counters --- */
.data-item .num[data-count] {
  font-variant-numeric: tabular-nums;
}

/* --- Live production strip --- */
.live-section {
  background: var(--bg-white);
}

/* --- Delivery capability --- */
.delivery-section {
  position: relative;
  background: var(--bg-light);
  overflow: hidden;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
}

@media (min-width: 900px) {
  .delivery-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.delivery-item {
  text-align: center;
  padding: var(--sp-8) var(--sp-5);
  background: var(--bg-white);
  border: 1px solid var(--line-light);
  border-radius: var(--r-lg);
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
}

.delivery-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.delivery-item .d-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-inline: auto;
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--brand-blue), var(--logo-blue));
  color: #fff;
  box-shadow: var(--shadow-brand);
}

.delivery-item .d-icon svg {
  width: 28px;
  height: 28px;
}

.delivery-item .d-value {
  margin-top: var(--sp-5);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--brand-blue);
}

.delivery-item .d-label {
  margin-top: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* --- Responsive video poster fix --- */
.hero-media {
  background: var(--brand-blue-deep);
}