/* ---------- 36. journey — 横向卡片滑动（原生滚动，不做劫持） ---------- */
.journey {
  --pad: max(var(--gut), calc((100% - var(--max)) / 2 + var(--gut)));
  position: relative;
  padding: 96px 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f5f8ff 0%, #ffffff 58%);
}

.journey__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.journey__title {
  margin: 14px 0 0;
  font-size: clamp(26px, 3.2vw, 44px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.journey__sub {
  margin: 16px 0 0;
  max-width: 48ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.journey__tools {
  display: flex;
  align-items: center;
  gap: 20px;
}

.journey__hud {
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}

.journey__idx {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--blue);
}

.journey__total {
  font-size: 12px;
  color: var(--muted);
}

.journey__name {
  margin-left: 8px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--muted);
}

.journey__nav {
  display: flex;
  gap: 8px;
}

.journey__btn {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  background: #fff;
  font-size: 15px;
  line-height: 1;
  transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), opacity .25s var(--ease);
}

.journey__btn:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.journey__btn:active { transform: translateY(1px); }

.journey__btn:focus-visible,
.journey__viewport:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.journey__btn[disabled] {
  opacity: .3;
  cursor: default;
}

.journey__btn[disabled]:hover {
  background: #fff;
  border-color: var(--line-2);
  color: inherit;
}

/* 视口：浏览器原生横向滚动 + 吸附，指针 / 触屏 / 键盘都能用 */
.journey__viewport {
  margin-top: 44px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-padding-inline: var(--pad);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  cursor: grab;
}

.journey__viewport::-webkit-scrollbar { display: none; }

.journey__viewport.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
  user-select: none;
}

.journey__track {
  display: flex;
  flex: 0 0 auto;
  width: max-content;
  align-items: stretch;
  gap: 18px;
  padding: 2px var(--pad) 26px;
}

.journey__card {
  flex: 0 0 clamp(262px, 25vw, 336px);
  scroll-snap-align: start;
  min-height: 262px;
  padding: 26px 24px 22px;
  border: 1px solid var(--line);
  background: #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.journey__card:hover { border-color: var(--line-2); }

.journey__card.is-active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  box-shadow: 0 22px 44px -30px rgba(23, 65, 207, .75);
}

.jc__num {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--blue);
}

.jc__title {
  margin: 14px 0 0;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.jc__desc {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.jc__meta {
  margin: 20px 0 0;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

.journey__card.is-active .jc__num { color: rgba(255, 255, 255, .9); }
.journey__card.is-active .jc__desc,
.journey__card.is-active .jc__meta { color: rgba(255, 255, 255, .78); }

.journey__foot {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 6px 0 52px;
}

.journey__bar {
  position: relative;
  flex: 1;
  height: 2px;
  background: var(--line-2);
}

.journey__bar span {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 0;
  background: var(--blue);
  transition: width .16s linear;
}

.journey__hint {
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .journey { padding-top: 64px; }

  .journey__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .journey__tools {
    width: 100%;
    justify-content: space-between;
  }

  .journey__nav { display: none; }

  .journey__viewport {
    margin-top: 28px;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--gut);
  }

  .journey__track {
    gap: 14px;
    padding: 2px var(--gut) 22px;
  }

  .journey__card {
    flex-basis: min(78vw, 330px);
    scroll-snap-align: center;
    min-height: 240px;
  }

  .journey__foot { padding-bottom: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  .journey__viewport { scroll-behavior: auto; }
  .journey__bar span { transition: none; }
  .journey__card { transition: none; }
}