/* 首页电影场景：雪山云雾（分层 SVG + 雾层漂移 + 鼠标视差） */
.landing .topbar {
  position: absolute;
  top: 0; left: 0; right: 0;
  background: transparent;
  border-bottom: 1px solid rgba(29, 48, 69, 0.07);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.scene {
  position: relative;
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
  background: linear-gradient(180deg, #DDE7EF 0%, #EAF0F5 46%, #F4F6F8 100%);
}

.layer { position: absolute; inset: 0; will-change: transform; transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1); pointer-events: none; }

/* 照片级雪山：Pexels 免版权图（assets/mountains-hero.jpg），微放大留出视差余量 */
.hero-photo {
  position: absolute;
  inset: -4%;
  background: url('assets/mountains-hero.jpg') center 42% / cover no-repeat;
}
.hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(244,246,248,.5) 0%, rgba(244,246,248,.08) 42%, rgba(244,246,248,.3) 100%);
}

/* 鼠标动效：小点即时 + 圆环延迟追随 */
body.landing.cursor-ready, body.landing.cursor-ready a, body.landing.cursor-ready button { cursor: none; }
.cursor-dot {
  position: fixed;
  z-index: 200;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--dark);
  pointer-events: none;
  transform: translate(-50%, -50%);
}
.cursor-ring {
  position: fixed;
  z-index: 200;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid rgba(29, 48, 69, 0.4);
  pointer-events: none;
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s, background 0.25s;
}
.cursor-ring.hover {
  width: 56px;
  height: 56px;
  border-color: rgba(29, 48, 69, 0.75);
  background: rgba(255, 255, 255, 0.14);
}
@media (pointer: coarse) {
  body.landing, body.landing a, body.landing button { cursor: auto; }
  .cursor-dot, .cursor-ring { display: none; }
}

@keyframes drift {
  from { transform: translateX(-3.5%); }
  to   { transform: translateX(3.5%); }
}
.fog {
  position: absolute;
  pointer-events: none;
  filter: blur(7px);
}
.fog-a {
  width: 74vw; height: 34vh;
  left: -10vw; bottom: 30vh;
  background: radial-gradient(closest-side, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
  animation: drift 42s ease-in-out infinite alternate;
}
.fog-b {
  width: 66vw; height: 30vh;
  right: -12vw; bottom: 17vh;
  background: radial-gradient(closest-side, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0));
  animation: drift 58s ease-in-out infinite alternate-reverse;
}
.fog-c {
  width: 46vw; height: 22vh;
  left: 24vw; bottom: 6vh;
  background: radial-gradient(closest-side, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0));
  animation: drift 50s ease-in-out infinite alternate;
}

.scene-content {
  position: absolute;
  left: 8vw;
  top: 31vh;
  z-index: 10;
  max-width: 860px;
}
.scene-content .eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.34em;
  font-weight: 600;
  color: rgba(29, 48, 69, 0.62);
  text-transform: uppercase;
}
.scene-content h1 {
  margin: 22px 0 0;
  font-size: clamp(40px, 5.6vw, 76px);
  font-weight: 200;
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--dark);
}
.scene-content .tagline {
  margin: 26px 0 0;
  font-size: 11px;
  letter-spacing: 0.35em;
  color: rgba(29, 48, 69, 0.58);
  text-transform: uppercase;
}
.cta-row { display: flex; align-items: center; gap: 26px; margin-top: 40px; }
.btn.big { padding: 14px 28px; font-size: 14px; }
.link-caps {
  font-size: 11px;
  letter-spacing: 0.28em;
  color: rgba(29, 48, 69, 0.66);
  text-decoration: none;
  border-bottom: 1px solid rgba(29, 48, 69, 0.25);
  padding-bottom: 4px;
  transition: color 0.25s, border-color 0.25s;
}
.link-caps:hover { color: var(--dark); border-color: var(--dark); }

.circle-cta {
  position: absolute;
  right: 5vw;
  bottom: 9vh;
  z-index: 10;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(29, 48, 69, 0.42);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark);
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(2px);
  transition: background 0.3s, color 0.3s, transform 0.6s var(--ease), border-color 0.3s;
}
.circle-cta:hover { background: var(--dark); color: #fff; border-color: var(--dark); transform: translateX(5px); }

.scene-foot {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  padding: 20px 5vw 24px;
  font-size: 10px;
  letter-spacing: 0.24em;
  color: rgba(29, 48, 69, 0.5);
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .scene-content { left: 6vw; right: 6vw; top: 26vh; }
  .scene-foot span:last-child { display: none; }
  .circle-cta { right: 6vw; }
}
@media (prefers-reduced-motion: reduce) {
  .fog, .layer { animation: none !important; transition: none !important; }
}