.operation-video {
  --ov-ink: #161616;
  --ov-muted: #5f5f5f;
  --ov-rule: #d8d8d8;
  background: #fff;
  color: var(--ov-ink);
  padding: clamp(96px, 9vw, 140px) 0 clamp(112px, 10vw, 164px);
}

.operation-video__inner {
  width: min(1160px, calc(100% - 64px));
  margin-inline: auto;
}

.operation-video__heading {
  max-width: 820px;
  margin: 0 auto clamp(68px, 7vw, 96px);
  text-align: center;
}

.operation-video__heading h2 {
  margin: 0;
  color: var(--ov-ink);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(28px, 2.2vw, 34px);
  font-weight: 620;
  letter-spacing: -0.035em;
  line-height: 1.18;
  text-wrap: balance;
}

.operation-video__layout {
  display: grid;
  grid-template-columns: minmax(0, 650px) minmax(280px, 1fr);
  align-items: center;
  justify-content: space-between;
  gap: clamp(72px, 8vw, 112px);
}

.operation-video__player {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  max-width: 650px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid #2e2e2e;
  border-radius: 14px;
  background: #171717 url("assets/workflow-tabs/workflow-write.png") center / cover no-repeat;
  color: #fff;
  cursor: pointer;
  box-shadow: 0 22px 55px rgba(0, 0, 0, .09);
  transition: background-color .28s ease, box-shadow .28s ease, transform .28s cubic-bezier(.2,.8,.2,1);
}

.operation-video__player::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 1;
  background: rgba(12,14,17,.64);
  backdrop-filter: blur(6px) saturate(.72);
}

.operation-video__player::after {
  content:"";
  position:absolute;
  z-index:0;
  inset:0;
  pointer-events:none;
  background:linear-gradient(135deg,rgba(10,12,14,.18),rgba(10,12,14,.45));
}

.operation-video__player:hover {
  background-color: #1d1d1d;
  box-shadow: 0 28px 65px rgba(0, 0, 0, .13);
  transform: translateY(-2px);
}

.operation-video__player:focus-visible,
.operation-video__cta:focus-visible {
  outline: 2px solid #111;
  outline-offset: 5px;
}

.operation-video__play {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: #fff;
  color: #171717;
  box-shadow: 0 8px 30px rgba(0, 0, 0, .22);
  transform: translate(-50%, -62%);
  transition: transform .28s cubic-bezier(.2,.8,.2,1);
}

.operation-video__player:hover .operation-video__play {
  transform: translate(-50%, -62%) scale(1.04);
}

.operation-video__play svg {
  width: 27px;
  height: 27px;
  margin-left: 3px;
}

.operation-video__player-label,
.operation-video__duration {
  position: absolute;
  z-index: 2;
  left: 50%;
  transform: translateX(-50%);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1;
}

.operation-video__player-label {
  top: calc(50% + 47px);
  font-size: 16px;
  font-weight: 550;
  letter-spacing: .08em;
}

.operation-video__duration {
  top: calc(50% + 74px);
  color: #8e8e8e;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.operation-video__status {
  position: absolute;
  right: 20px;
  bottom: 18px;
  color: #aaa;
  font-size: 13px;
}

.operation-video__copy h3 {
  margin: 0 0 24px;
  color: var(--ov-ink);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(24px, 1.8vw, 29px);
  font-weight: 620;
  letter-spacing: -0.035em;
  line-height: 1.28;
  white-space: nowrap;
}

.operation-video__copy p {
  max-width: 28em;
  margin: 0 0 44px;
  color: var(--ov-muted);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.9;
}

.operation-video__cta {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 48px;
  min-width: 160px;
  padding: 0 24px;
  border: 1px solid #1d1d1f;
  border-radius: 999px;
  background: #1d1d1f;
  color: #fff;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  font-weight: 550;
  line-height: 1;
  text-decoration: none;
  box-shadow: 0 8px 20px rgb(0 0 0 / 12%);
  transition: background-color .22s ease, transform .22s ease, box-shadow .22s ease;
}

.operation-video__cta:hover {
  background: #353537;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgb(0 0 0 / 16%);
}

.operation-video__cta-arrow{font-size:25px;font-weight:400;line-height:1;transform:translateY(-1px)}

@media (max-width: 900px) {
  .operation-video__layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .operation-video__copy {
    max-width: 610px;
  }

  .operation-video__player {
    max-width: 720px;
  }

  .operation-video__copy h3 { white-space: normal; }
}

@media (max-width: 600px) {
  .operation-video {
    padding: 76px 0 88px;
  }

  .operation-video__inner {
    width: min(100% - 32px, 1160px);
  }

  .operation-video__heading {
    margin-bottom: 40px;
    text-align: left;
  }

  .operation-video__heading h2 {
    font-size: 31px;
    line-height: 1.25;
  }

  .operation-video__play {
    width: 66px;
    height: 66px;
  }

  .operation-video__play svg {
    width: 25px;
    height: 25px;
  }

  .operation-video__player-label {
    top: calc(50% + 40px);
    font-size: 15px;
  }

  .operation-video__duration {
    top: calc(50% + 66px);
    font-size: 12px;
  }

  .operation-video__copy h3 {
    margin-bottom: 20px;
    font-size: 28px;
  }

  .operation-video__copy p {
    margin-bottom: 34px;
    font-size: 16px;
    line-height: 1.8;
  }
}

@media (prefers-reduced-motion: reduce) {
  .operation-video__player,
  .operation-video__play,
  .operation-video__cta {
    transition: none;
  }
}