/* 首页各屏。占位画面（.ph）在素材到位前顶替海报与视频，结构与真素材一致，换素材不改版式。 */

/* ── 占位画面：按 --h（色相）生成一张「电影感」底图 ── */
.ph {
  --h: 260;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(60% 50% at 28% 22%, hsl(var(--h) 70% 58% / 0.5), transparent 70%),
    radial-gradient(55% 45% at 78% 82%, hsl(calc(var(--h) + 50) 65% 45% / 0.45), transparent 70%),
    radial-gradient(40% 30% at 60% 40%, hsl(calc(var(--h) - 30) 60% 60% / 0.18), transparent 70%),
    linear-gradient(160deg, hsl(var(--h) 32% 13%), #07070c 85%);
}

/* 胶片颗粒：让纯渐变不像「设计稿」 */
.ph::after {
  content: "";
  position: absolute;
  inset: -50%;
  opacity: 0.09;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  pointer-events: none;
}

.ph-title {
  position: absolute;
  inset: auto 0 14% 0;
  z-index: 1;
  text-align: center;
  font-family: var(--f-poster);
  font-size: clamp(22px, 2.4vw, 34px);
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.92);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
}

/* ── ① 首屏 ── */
.hero {
  position: relative;
  min-height: max(100svh, 640px);
  display: grid;
  place-items: end center;
  overflow: hidden;
  isolation: isolate;
}

.hero-media { position: absolute; inset: 0; z-index: -2; }

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--t-fade) var(--ease);
}

.hero-slide.is-active { opacity: 1; }

/* 慢推镜头：让静帧占位也有「在播放」的呼吸 */
.hero-slide .hero-fill {
  position: absolute;
  inset: -4%;
  animation: slow-push 14s var(--ease) infinite alternate;
}

.hero-slide video.hero-fill,
.hero-slide img.hero-fill { width: 108%; height: 108%; object-fit: cover; }

/* 竖屏片段：同片虚化铺底 + 中间原比例清晰画面 */
.hero-slide.is-portrait .hero-fill { filter: blur(48px) brightness(0.55) saturate(1.2); }

.hero-portrait {
  position: absolute;
  top: 50%;
  left: 50%;
  height: min(86vh, 900px);
  aspect-ratio: 9 / 16;
  transform: translate(-50%, -50%);
  border-radius: var(--r-card);
  overflow: hidden;
  box-shadow: 0 40px 120px -20px rgba(0, 0, 0, 0.8);
  opacity: 0.85;
}

.hero-portrait video,
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; }

@keyframes slow-push {
  from { transform: scale(1); }
  to { transform: scale(1.06) translate(-1%, -1%); }
}

/* 压暗：下方压字的区域最暗，四周暗角 */
.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(8, 9, 15, 0.55) 0%, rgba(8, 9, 15, 0) 28%, rgba(8, 9, 15, 0.25) 55%, rgba(8, 9, 15, 0.95) 100%),
    radial-gradient(120% 90% at 50% 40%, transparent 50%, rgba(8, 9, 15, 0.7) 100%);
}

.hero-content {
  width: min(960px, 100% - 48px);
  padding-bottom: clamp(72px, 14vh, 150px);
  text-align: center;
}

.hero-title {
  margin-top: 22px;
  text-wrap: balance;
  font-size: var(--fs-hero);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: 0.04em;
  color: var(--c-text-strong);
}

.hero-sub {
  margin-top: 22px;
  font-size: var(--fs-lead);
  letter-spacing: 0.12em;
  color: var(--c-text-2);
}

.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 44px;
}

.now-playing {
  position: absolute;
  right: max(24px, calc((100vw - var(--w-content)) / 2));
  bottom: 36px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--fs-tiny);
  letter-spacing: 0.1em;
  color: var(--c-text-3);
}

.now-playing-bar {
  position: relative;
  width: 64px;
  height: 2px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.14);
  overflow: hidden;
}

.now-playing-bar i {
  position: absolute;
  inset: 0;
  transform-origin: left;
  background: var(--c-text-2);
  animation: bar var(--slide-ms, 7000ms) linear infinite;
}

@keyframes bar {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ── 区块通用 ── */
.section { padding: var(--sp-section) 0; position: relative; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--sp-lg); }

.link-arrow { font-size: 15px; color: var(--c-text-3); white-space: nowrap; transition: color var(--t-fast); }
.link-arrow:hover { color: var(--c-text-strong); }

/* ── ② 作品墙：两行反向缓慢滚动，同高不同宽，竖横混排 ── */
.marquee {
  --row-h: clamp(240px, 26vw, 360px);
  margin-top: var(--sp-xl);
  display: grid;
  gap: 20px;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-row { overflow: hidden; }

.marquee-track {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: marquee var(--dur, 80s) linear infinite;
}

.marquee-row.is-reverse .marquee-track { animation-direction: reverse; }
.marquee-row:hover .marquee-track { animation-play-state: paused; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.work { flex: none; margin: 0; cursor: pointer; outline-offset: 4px; }

.work-cap {
  margin-top: 12px;
  width: 0;
  min-width: 100%; /* 片名再长也不撑宽卡片 */
  font-size: 15px;
  color: var(--c-text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.work-card {
  position: relative;
  height: var(--row-h);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--c-surface);
  transition: transform var(--t-slow) var(--ease), box-shadow var(--t-slow) var(--ease);
}

.work-card.is-portrait { aspect-ratio: 9 / 16; }
.work-card.is-landscape { aspect-ratio: 16 / 9; }
.work:hover .work-card { transform: translateY(-6px); box-shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.8); }

.work-card .ph,
.work-card img,
.work-card video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

.work-card video { opacity: 0; transition: opacity var(--t-slow); }
.work-card.is-playing video { opacity: 1; }

.work-tags { position: absolute; top: 12px; left: 12px; right: 12px; z-index: 2; display: flex; justify-content: space-between; gap: 8px; }

.tag {
  padding: 3px 10px;
  border-radius: var(--r-pill);
  font-size: var(--fs-tiny);
  letter-spacing: 0.06em;
  color: var(--c-text-strong);
  background: rgba(8, 9, 15, 0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.tag-hot { background: rgba(139, 124, 246, 0.75); }

/* ── ③ 从一句话到一部剧 ── */
.starts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: var(--sp-xl); }

.start {
  padding: 28px 28px 30px;
  border: 1px solid var(--c-hairline);
  border-radius: var(--r-card);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent);
}

.start h3 { font-size: var(--fs-h3); font-weight: 600; color: var(--c-text-strong); }
.start p { margin-top: 10px; font-size: 15px; color: var(--c-text-3); }

.flow {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: var(--sp-xl);
  margin-top: var(--sp-section);
}

.flow-step {
  min-height: 72vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0.28;
  transition: opacity var(--t-slow) var(--ease);
}

.flow-step.is-active { opacity: 1; }
.flow-num { font-size: 15px; letter-spacing: 0.2em; color: var(--c-primary-soft); }
.flow-step h3 { margin-top: 14px; font-size: clamp(30px, 3.4vw, 44px); font-weight: 600; color: var(--c-text-strong); }
.flow-step p { max-width: 420px; margin-top: 16px; font-size: var(--fs-lead); color: var(--c-text-3); }

.flow-stage {
  position: sticky;
  top: calc(var(--header-h) + 8vh);
  height: min(68vh, 640px);
  border: 1px solid var(--c-hairline);
  border-radius: var(--r-card);
  background: radial-gradient(80% 60% at 70% 0%, var(--c-primary-subtle), transparent 70%), var(--c-bg);
  overflow: hidden;
}

.flow-mock {
  position: absolute;
  inset: 0;
  padding: 36px;
  opacity: 0;
  transform: scale(0.985);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
}

.flow-mock.is-active { opacity: 1; transform: none; }

.mock-caption {
  position: absolute;
  left: 36px;
  bottom: 22px;
  font-size: var(--fs-tiny);
  letter-spacing: 0.1em;
  color: var(--c-text-4);
}

/* ── ④ 能力：一段一句大字 + 一张截图，左右交替 ── */
.cap {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  align-items: center;
  gap: var(--sp-xl);
}

.cap + .cap { margin-top: var(--sp-section); }
.cap.is-flip .cap-text { order: 2; }
.cap-text h3 { font-size: clamp(30px, 3.6vw, 48px); font-weight: 600; line-height: 1.25; color: var(--c-text-strong); }
.cap-text p { margin-top: 18px; font-size: var(--fs-lead); color: var(--c-text-3); }

.shot {
  position: relative;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--c-hairline);
  border-radius: var(--r-card);
  overflow: hidden;
}

.shot-label {
  position: absolute;
  left: 20px;
  bottom: 16px;
  z-index: 1;
  font-size: var(--fs-tiny);
  letter-spacing: 0.1em;
  color: var(--c-text-3);
}

/* ── ⑤ 私有化部署 ── */
.private {
  background:
    radial-gradient(50% 40% at 50% 0%, rgba(139, 124, 246, 0.16), transparent 70%),
    var(--c-bg);
  border-top: 1px solid var(--c-line);
}

.private .section-title { max-width: 860px; }

.advantages {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: var(--sp-xl);
  border: 1px solid var(--c-hairline);
  border-radius: var(--r-card);
  overflow: hidden;
  background: var(--c-hairline);
}

.adv { padding: 32px 26px 36px; background: var(--c-bg); }
.adv h3 { font-size: 20px; font-weight: 600; color: var(--c-text-strong); }
.adv p { margin-top: 12px; font-size: 15px; color: var(--c-text-3); }

.scenes-head { margin-top: var(--sp-section); }

.scenes {
  display: grid;
  grid-template-columns: 1.25fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
  margin-top: var(--sp-lg);
}

.scene {
  padding: 30px;
  border: 1px solid var(--c-hairline);
  border-radius: var(--r-card);
  background: var(--c-bg-deepest);
}

.scene h3, .cap-text h3, .flow-step h3, .adv h3 { text-wrap: balance; }
.scene h3 { font-size: 20px; font-weight: 600; color: var(--c-text-strong); }
.scene p { margin-top: 10px; font-size: 15px; color: var(--c-text-3); }

.scene-main {
  grid-row: span 2;
  padding: 40px;
  border-color: rgba(139, 124, 246, 0.3);
  background:
    radial-gradient(90% 60% at 0% 0%, rgba(139, 124, 246, 0.18), transparent 70%),
    var(--c-bg-deepest);
}

.scene-main h3 { font-size: clamp(26px, 2.6vw, 34px); }
.scene-main .pain { margin-top: 16px; font-size: 16px; color: var(--c-text-3); }
.scene-main ul { margin: 28px 0 0; padding: 0; list-style: none; display: grid; gap: 14px; }

.scene-main li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  color: var(--c-text-2);
}

.scene-main li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 12px var(--c-primary-glow);
}

.private-cta { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin-top: var(--sp-xl); }
.private-cta span { font-size: var(--fs-small); color: var(--c-text-4); }

/* ── ⑥ 收尾 ── */
.closing { text-align: center; }
.closing .hero-title { margin-top: 0; }
.closing .hero-actions { margin-top: 40px; }

.contact-list { margin-top: var(--sp-md); display: grid; gap: 12px; font-size: 15px; color: var(--c-text-2); }
.contact-list div { display: flex; justify-content: space-between; padding: 14px 0; border-bottom: 1px solid var(--c-line); }
.contact-list span:first-child { color: var(--c-text-3); }

/* ── 窄屏 ── */
@media (max-width: 1100px) {
  .advantages { grid-template-columns: repeat(2, 1fr); }
  .adv:last-child { grid-column: span 2; }
  .scenes { grid-template-columns: 1fr 1fr; }
  .scene-main { grid-column: span 2; grid-row: auto; }
}

@media (max-width: 860px) {
  .starts, .advantages, .scenes { grid-template-columns: 1fr; }
  .adv:last-child, .scene-main { grid-column: auto; }
  .flow, .cap { grid-template-columns: 1fr; gap: var(--sp-lg); }
  .cap.is-flip .cap-text { order: 0; }
  /* 手机上画面吸顶、文字在下面滚过，仍是「滚到哪步换哪步」 */
  .flow-stage { top: calc(var(--header-h) + 8px); z-index: 1; height: 44vh; order: -1; }
  .flow-step { min-height: 56vh; }
  .hero-portrait { height: 70vh; }
  .now-playing { left: 24px; right: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide .hero-fill, .marquee-track, .now-playing-bar i { animation: none; }
  .hero-slide { transition: none; }
}