.siyuan_journey_letter_main {
  --journey-node-width: 224px;
  --journey-line-height: 275px;
  --journey-copy-width: 185px;
  --journey-year-size: 48px;
  --journey-desc-size: 16px;
  --journey-desc-line: 21px;
  --journey-node-gap: 20px;
  --journey-step-gap: 303px;
  --journey-edge-safe: 3px;
  --journey-stage-height: 660px;
  --journey-track-top: 177px;
  --journey-track-height: 488px;
  --journey-y-2: 101px;
  --journey-y-3: 208px;
  --journey-y-4: 128px;
  --journey-y-5: 60px;
  position: relative;
  padding: 0 max(40px, calc((100vw - 1440px) / 2)) 140px;
  background: #f5f5f5;
  color: #000000;
  overflow: visible;
  isolation: isolate;
}

.siyuan_journey_letter_main .siyuan-journey-letter-bg {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 140px;
  z-index: 0;
  width: 100%;
  background-image: var(--siyuan-journey-bg);
  background-repeat: no-repeat;
  background-position: center top;
  background-size: cover;
  pointer-events: none;
}

.siyuan_journey_letter_main .siyuan-journey-letter-frame {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  overflow-x: clip;
  overflow-y: visible;
}

.siyuan_journey_letter_main .siyuan-journey-title,
.siyuan_journey_letter_main .siyuan-ceo-letter-title {
  margin: 0;
  color: currentColor;
  font-family: var(--font-family-bold);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0;
  text-transform: capitalize;
}

.siyuan_journey_letter_main .siyuan-journey-subtitle,
.siyuan_journey_letter_main .siyuan-ceo-letter-subtitle {
  margin: 10px 0 0;
  color: currentColor;
  font-family: var(--font-family-medium);
  font-size: 16px;
  font-weight: 500;
  line-height: 21px;
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-journey-scroll {
  position: relative;
  height: var(--journey-stage-height);
  overflow: visible;
}

.siyuan_journey_letter_main .siyuan-journey-sticky {
  position: relative;
  height: var(--journey-stage-height);
}

.siyuan_journey_letter_main .siyuan-journey-block {
  position: relative;
  width: 100%;
  height: var(--journey-stage-height);
}

.siyuan_journey_letter_main .siyuan-journey-heading {
  width: 100%;
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity 0.56s ease, transform 0.56s ease;
}

.siyuan_journey_letter_main .siyuan-journey-scroll.is-started .siyuan-journey-heading {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.siyuan_journey_letter_main .siyuan-journey-track {
  position: absolute;
  left: 0;
  top: var(--journey-track-top);
  width: 100%;
  height: var(--journey-track-height);
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.siyuan_journey_letter_main .siyuan-journey-track::-webkit-scrollbar {
  display: none;
}

.siyuan_journey_letter_main .siyuan-journey-timeline {
  position: relative;
  width: var(--journey-width, 1440px);
  height: var(--journey-track-height);
}

.siyuan_journey_letter_main .siyuan-journey-milestone {
  position: absolute;
  display: flex;
  gap: var(--journey-node-gap);
  width: var(--journey-node-width);
  color: #000000;
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(1) {
  left: var(--journey-edge-safe);
  top: 0;
  width: calc(var(--journey-node-width) - 1px);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(2) {
  left: calc(var(--journey-edge-safe) + var(--journey-step-gap));
  top: var(--journey-y-2);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(3) {
  left: calc(var(--journey-edge-safe) + var(--journey-step-gap) * 2 + 1px);
  top: var(--journey-y-3);
  width: calc(var(--journey-node-width) - 1px);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(4) {
  left: calc(var(--journey-edge-safe) + var(--journey-step-gap) * 3 + 1px);
  top: var(--journey-y-4);
  width: calc(var(--journey-node-width) - 1px);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(5) {
  left: calc(var(--journey-edge-safe) + var(--journey-step-gap) * 4 + 1px);
  top: var(--journey-y-5);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(n + 6) {
  left: calc(var(--journey-edge-safe) + var(--step) * var(--journey-step-gap) + 1px);
  top: calc(var(--extra-y, 0px));
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(5n + 6) {
  --extra-y: 0px;
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(5n + 7) {
  --extra-y: var(--journey-y-2);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(5n + 8) {
  --extra-y: var(--journey-y-3);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(5n + 9) {
  --extra-y: var(--journey-y-4);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:nth-child(5n + 10) {
  --extra-y: var(--journey-y-5);
}

.siyuan_journey_letter_main .siyuan-journey-milestone:hover {
  color: #2c9711;
}

.siyuan_journey_letter_main .siyuan-journey-node-line {
  position: relative;
  flex: 0 0 2px;
  width: 2px;
  height: var(--journey-line-height);
  overflow: visible;
}

.siyuan_journey_letter_main .siyuan-journey-node-line::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  z-index: 1;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0;
  transform: translateX(-50%) scale(0.6);
  transition: opacity 0.22s ease 0.46s, transform 0.32s ease 0.42s;
}

.siyuan_journey_letter_main .siyuan-journey-node-line::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: currentColor;
  opacity: 0;
  transform: scaleY(0);
  transform-origin: bottom center;
  transition: opacity 0.2s ease 0.28s, transform 0.56s cubic-bezier(0.64, 0, 0.78, 0);
  will-change: transform;
}

.siyuan_journey_letter_main .siyuan-journey-milestone.is-visible .siyuan-journey-node-line::after {
  opacity: 1;
  transform: scaleY(1);
  transform-origin: top center;
  transition: opacity 0.2s ease, transform 0.92s cubic-bezier(0.22, 1, 0.36, 1);
}

.siyuan_journey_letter_main .siyuan-journey-milestone.is-visible .siyuan-journey-node-line::before {
  opacity: 1;
  transform: translateX(-50%) scale(1);
  transition: opacity 0.22s ease, transform 0.32s ease;
}

.siyuan_journey_letter_main .siyuan-journey-milestone-copy {
  width: var(--journey-copy-width);
  opacity: 0;
  clip-path: inset(0 0 100% 0);
  transform: translate3d(0, -16px, 0);
  transition: opacity 0.28s ease, transform 0.36s ease, clip-path 0.44s cubic-bezier(0.64, 0, 0.78, 0);
  will-change: opacity, transform, clip-path;
}

.siyuan_journey_letter_main .siyuan-journey-milestone.is-visible .siyuan-journey-milestone-copy {
  opacity: 1;
  clip-path: inset(0 0 0 0);
  transform: translate3d(0, 0, 0);
  transition: opacity 0.5s ease 0.18s, transform 0.5s ease 0.18s, clip-path 0.68s cubic-bezier(0.22, 1, 0.36, 1) 0.12s;
}

.siyuan_journey_letter_main .siyuan-journey-year {
  margin: 0;
  color: currentColor;
  font-family: var(--font-family-bold);
  font-size: var(--journey-year-size);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-journey-desc {
  margin: 10px 0 0;
  color: currentColor;
  font-family: var(--font-family-medium);
  font-size: var(--journey-desc-size);
  font-weight: 500;
  line-height: var(--journey-desc-line);
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-block {
  position: relative;
  min-height: 0;
  margin-top: 80px;
  color: #ffffff;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-heading {
  width: 100%;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-card {
  position: relative;
  top: auto;
  right: auto;
  display: grid;
  grid-template-columns: 387px 590px;
  gap: 80px;
  width: 1197px;
  min-height: 0;
  margin-top: 86px;
  margin-left: auto;
  padding: 60px 80px;
  border-radius: 10px;
  background: #ffffff;
  color: #000000;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  opacity: 0;
  transform: translate3d(0, 72px, 0);
  transition: opacity 0.72s ease, transform 0.72s ease;
  will-change: opacity, transform;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-card.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.siyuan_journey_letter_main .siyuan-ceo-letter-card-title {
  width: 387px;
  margin: 0;
  color: #000000;
  font-family: var(--font-family-bold);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-intro,
.siyuan_journey_letter_main .siyuan-ceo-letter-body {
  color: #000000;
  font-family: var(--font-family-medium);
  font-size: 16px;
  font-weight: 500;
  line-height: 21px;
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-intro {
  width: 387px;
  margin-top: 20px;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-body {
  width: 590px;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  width: 427px;
  margin-top: 22px;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-stat {
  min-height: 111px;
  padding: 16px 40px 24px;
  border: 0.806px solid rgba(255, 255, 255, 0.1);
  border-radius: 11.287px;
  background: #183028;
  color: #ffffff;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-stat strong {
  display: block;
  color: #ffffff;
  font-family: var(--font-family-bold);
  font-size: 45.15px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-stat span {
  display: block;
  margin-top: 4px;
  color: #ffffff;
  font-family: var(--font-family-medium);
  font-size: 12.9px;
  font-weight: 500;
  line-height: 14.92px;
  letter-spacing: 0;
}

.siyuan_journey_letter_main .siyuan-ceo-letter-signature {
  display: block;
  width: 260px;
  height: 110px;
  margin-top: 25px;
  object-fit: contain;
}

@media screen and (min-width: 1600px) {
  .siyuan_journey_letter_main .siyuan-journey-letter-frame {
    max-width: 1440px;
  }
}

@media screen and (max-width: 1400px) {
  .siyuan_journey_letter_main {
    --journey-node-width: 212px;
    --journey-line-height: 250px;
    --journey-copy-width: 176px;
    --journey-year-size: 44px;
    --journey-desc-size: 16px;
    --journey-desc-line: 21px;
    --journey-step-gap: 282px;
    --journey-stage-height: 610px;
    --journey-track-top: 160px;
    --journey-track-height: 450px;
    --journey-y-2: 92px;
    --journey-y-3: 188px;
    --journey-y-4: 116px;
    --journey-y-5: 54px;
    padding-left: 40px;
    padding-right: 40px;
    padding-bottom: 120px;
  }

  .siyuan_journey_letter_main .siyuan-journey-letter-bg {
    bottom: 120px;
  }

  .siyuan_journey_letter_main .siyuan-journey-title,
  .siyuan_journey_letter_main .siyuan-ceo-letter-title {
    font-size: 44px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-card {
    width: calc(100% - 180px);
    grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
    gap: 56px;
    padding: 56px 64px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-card-title,
  .siyuan_journey_letter_main .siyuan-ceo-letter-intro,
  .siyuan_journey_letter_main .siyuan-ceo-letter-body,
  .siyuan_journey_letter_main .siyuan-ceo-letter-stats {
    width: 100%;
  }
}

@media screen and (max-width: 1200px) {
  .siyuan_journey_letter_main {
    --journey-node-width: 200px;
    --journey-line-height: 230px;
    --journey-copy-width: 166px;
    --journey-year-size: 40px;
    --journey-desc-size: 16px;
    --journey-desc-line: 21px;
    --journey-step-gap: 260px;
    --journey-stage-height: 560px;
    --journey-track-top: 145px;
    --journey-track-height: 415px;
    --journey-y-2: 82px;
    --journey-y-3: 168px;
    --journey-y-4: 104px;
    --journey-y-5: 48px;
    padding-bottom: 96px;
  }

  .siyuan_journey_letter_main .siyuan-journey-letter-bg {
    bottom: 96px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-block {
    min-height: 0;
    margin-top: 72px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-card {
    position: relative;
    top: auto;
    right: auto;
    grid-template-columns: 1fr;
    width: 100%;
    min-height: 0;
    margin-top: 56px;
    gap: 36px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-stats {
    max-width: 427px;
  }
}

@media screen and (max-width: 992px) {
  .siyuan_journey_letter_main {
    --journey-node-width: 188px;
    --journey-line-height: 210px;
    --journey-copy-width: 156px;
    --journey-year-size: 36px;
    --journey-desc-size: 16px;
    --journey-desc-line: 21px;
    --journey-step-gap: 238px;
    --journey-stage-height: 510px;
    --journey-track-top: 130px;
    --journey-track-height: 380px;
    --journey-y-2: 74px;
    --journey-y-3: 150px;
    --journey-y-4: 94px;
    --journey-y-5: 42px;
    padding-left: 30px;
    padding-right: 30px;
    padding-bottom: 72px;
  }

  .siyuan_journey_letter_main .siyuan-journey-letter-bg {
    bottom: 72px;
  }

  .siyuan_journey_letter_main .siyuan-journey-title,
  .siyuan_journey_letter_main .siyuan-ceo-letter-title {
    font-size: 40px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-card {
    padding: 42px 36px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-block {
    margin-top: 56px;
  }
}

@media screen and (max-width: 768px) {
  .siyuan_journey_letter_main {
    --journey-node-width: 176px;
    --journey-line-height: 190px;
    --journey-copy-width: 146px;
    --journey-year-size: 36px;
    --journey-desc-size: 15px;
    --journey-desc-line: 20px;
    --journey-node-gap: 16px;
    --journey-step-gap: 216px;
    --journey-stage-height: 450px;
    --journey-track-top: 114px;
    --journey-track-height: 336px;
    --journey-y-2: 64px;
    --journey-y-3: 128px;
    --journey-y-4: 80px;
    --journey-y-5: 36px;
    padding-left: 20px;
    padding-right: 20px;
    padding-bottom: 56px;
  }

  .siyuan_journey_letter_main .siyuan-journey-letter-bg {
    bottom: 56px;
  }

  .siyuan_journey_letter_main .siyuan-journey-title,
  .siyuan_journey_letter_main .siyuan-ceo-letter-title {
    font-size: 34px;
  }

  .siyuan_journey_letter_main .siyuan-journey-subtitle,
  .siyuan_journey_letter_main .siyuan-ceo-letter-subtitle,
  .siyuan_journey_letter_main .siyuan-ceo-letter-intro,
  .siyuan_journey_letter_main .siyuan-ceo-letter-body {
    font-size: 16px;
    line-height: 21px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-stats {
    grid-template-columns: 1fr;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-block {
    margin-top: 44px;
  }

  .siyuan_journey_letter_main .siyuan-journey-track {
    -webkit-overflow-scrolling: touch;
    touch-action: pan-x pan-y;
  }
}

@media screen and (max-width: 576px) {
  .siyuan_journey_letter_main {
    --journey-node-width: 164px;
    --journey-line-height: 170px;
    --journey-copy-width: 136px;
    --journey-year-size: 32px;
    --journey-desc-size: 14px;
    --journey-desc-line: 21px;
    --journey-node-gap: 14px;
    --journey-step-gap: 196px;
    --journey-stage-height: 410px;
    --journey-track-top: 102px;
    --journey-track-height: 308px;
    --journey-y-2: 56px;
    --journey-y-3: 112px;
    --journey-y-4: 70px;
    --journey-y-5: 32px;
    padding-left: 16px;
    padding-right: 16px;
    padding-bottom: 42px;
  }

  .siyuan_journey_letter_main .siyuan-journey-letter-bg {
    bottom: 42px;
  }

  .siyuan_journey_letter_main .siyuan-journey-title,
  .siyuan_journey_letter_main .siyuan-ceo-letter-title {
    font-size: 28px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-card {
    padding: 30px 22px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-block {
    margin-top: 36px;
  }

  .siyuan_journey_letter_main .siyuan-ceo-letter-card-title {
    font-size: 24px;
  }
}