.page-home {
  background: var(--paper);
  color: var(--char);
  --home-rail: 72px;
  --home-border: 1px solid var(--line);
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ============ 首屏 ============ */
.page-home .hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: clamp(22px, 4vw, 44px) 0 clamp(30px, 4vw, 52px);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--orange);
  clip-path: polygon(100% 58%, 100% 100%, 14% 100%);
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-home .hero .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: rgba(246, 241, 228, .72);
}

.page-home .hero .crumbs a {
  color: rgba(246, 241, 228, .72);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-home .hero .crumbs a:hover {
  color: var(--cream);
  border-bottom-color: var(--orange);
}

.page-home .hero__kicker {
  margin: 16px 0 8px;
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--cream);
}

.page-home .hero__title {
  margin: 0 0 16px;
  font-size: clamp(31px, 6vw, 49px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-home .hero__mark {
  display: inline-block;
  background: var(--paper);
  color: var(--ink);
  padding: 0 .16em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

.page-home .hero__lede {
  max-width: 46ch;
  margin: 0 0 22px;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: rgba(246, 241, 228, .88);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.page-home .hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-paper);
  font-size: var(--fs-14);
  color: rgba(246, 241, 228, .82);
}

.page-home .hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  position: relative;
  padding-left: 12px;
}

.page-home .hero__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

.page-home .hero__facts .mono {
  font-size: var(--fs-20);
  color: var(--paper);
}

/* 进度板 */
.page-home .hero__board {
  position: relative;
  display: flex;
  flex-direction: column;
}

.page-home .hero__figure {
  margin: 0;
  border: 1px solid var(--line-paper-2);
  background: var(--ink-deep);
}

.page-home .hero__figure .figure__frame {
  border: 0;
}

.page-home .hero__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .board {
  position: relative;
  margin-top: 16px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-deep);
  border: 1px solid var(--line-paper-2);
  border-left: 4px solid var(--orange);
}

.page-home .board__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-paper);
}

.page-home .board__label {
  font-size: var(--fs-16);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-home .board__ver {
  font-size: var(--fs-20);
  color: var(--orange-soft);
}

.page-home .board__dial {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 18px 0 12px;
}

.page-home .dial {
  width: min(190px, 60%);
  height: auto;
  transform: rotate(-90deg);
}

.page-home .dial__track {
  fill: none;
  stroke: rgba(246, 241, 228, .16);
  stroke-width: 10;
}

.page-home .dial__value {
  fill: none;
  stroke: var(--orange);
  stroke-width: 10;
  stroke-linecap: butt;
  stroke-dasharray: 452.4;
  stroke-dashoffset: 452.4;
  animation: home-dial 900ms cubic-bezier(.22, .9, .24, 1) 180ms forwards;
}

@keyframes home-dial {
  to { stroke-dashoffset: 90.5; }
}

.page-home .board__dial-num {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -42%);
  margin: 0;
  text-align: center;
}

.page-home .board__dial-num .mono {
  display: block;
  font-size: var(--fs-31);
  color: var(--paper);
  line-height: 1.1;
}

.page-home .board__dial-num em {
  display: block;
  margin-top: 4px;
  font-size: var(--fs-12);
  font-style: normal;
  color: rgba(246, 241, 228, .68);
}

.page-home .board__list {
  margin: 12px 0 0;
}

.page-home .board__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-paper);
}

.page-home .board__row:last-child {
  border-bottom: 0;
}

.page-home .board__row dt {
  font-size: var(--fs-14);
  color: rgba(246, 241, 228, .74);
}

.page-home .board__row dd {
  margin: 0;
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--cream);
}

.page-home .board__foot {
  margin: 10px 0 0;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: rgba(246, 241, 228, .6);
}

.page-home .hero__ruler {
  position: relative;
  z-index: 1;
  height: 24px;
  margin-top: clamp(24px, 3.4vw, 40px);
  background-image: repeating-linear-gradient(to right, rgba(246, 241, 228, .42) 0 1px, transparent 1px 26px);
  background-repeat: repeat-x;
  background-position: left bottom;
  background-size: 100% 13px;
  border-bottom: 1px solid var(--line-paper);
}

/* ============ 通用分节 ============ */
.page-home .band {
  border-top: var(--home-border);
  padding: clamp(40px, 5.5vw, 74px) 0;
}

.page-home .band__inner {
  display: grid;
  grid-template-columns: 1fr;
}

.page-home .rail {
  display: none;
}

.page-home .band__body {
  min-width: 0;
}

.page-home .band__head {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-home .band__head h2 {
  margin: 6px 0 12px;
  font-size: clamp(25px, 3.6vw, 39px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-home .band__head .lede {
  max-width: 62ch;
  margin: 0;
  color: var(--char);
}

/* ============ 两条入口 ============ */
.page-home .routes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 28px);
}

.page-home .route-card {
  display: flex;
  flex-direction: column;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  transition: transform .18s ease, border-color .18s ease;
}

.page-home .route-card:hover,
.page-home .route-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--ink);
}

.page-home .route-card__figure {
  margin: 0;
  border-bottom: 1px solid var(--line-2);
}

.page-home .route-card__figure .figure__frame {
  border: 0;
}

.page-home .route-card__figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .route-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 2.2vw, 24px) clamp(18px, 2.2vw, 26px) clamp(20px, 2.4vw, 26px);
}

.page-home .route-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-home .route-card__head h3 {
  margin: 0;
  font-size: var(--fs-25);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .route-card__body > p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--char);
}

.page-home .route-card .disclosure {
  margin: 0;
}

.page-home .route-card__cta {
  margin-top: auto;
}

.page-home .ticks {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--char);
}

.page-home .ticks li {
  position: relative;
}

.page-home .ticks li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--orange);
}

/* ============ 站内索引 ============ */
.page-home .finder__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.8vw, 34px);
}

.page-home .finder__demo {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  border-top: 4px solid var(--orange);
}

.page-home .finder__label {
  display: block;
  margin-bottom: 10px;
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--ink);
}

.page-home .finder__input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  color: var(--char);
  background: var(--paper);
  border: 1px solid var(--line-2);
  border-radius: 0;
  appearance: none;
}

.page-home .finder__input::placeholder {
  color: var(--graphite);
}

.page-home .finder__input:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 1px;
}

.page-home .finder__panel {
  margin-top: 14px;
  background: var(--paper);
  border: 1px solid var(--line);
}

.page-home .finder__hits {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .finder__hit {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.page-home .finder__hit:last-child {
  border-bottom: 0;
}

.page-home .finder__hit a {
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-home .finder__hit a:hover {
  color: var(--orange);
}

.page-home .finder__hit span {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--graphite);
}

.page-home .finder__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--graphite);
}

.page-home .finder__ways {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-2);
}

.page-home .way {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .way__num {
  grid-row: span 2;
  font-size: var(--fs-20);
  color: var(--orange);
  line-height: 1.4;
}

.page-home .way h3 {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 900;
  color: var(--ink);
}

.page-home .way p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--char);
}

/* ============ 版本档案 ============ */
.page-home .archive__figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--line-2);
}

.page-home .archive__figure .figure__frame {
  border: 0;
}

.page-home .archive__figure img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-home .archive__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .archive__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 20px;
  background: var(--paper);
  border: 1px solid var(--line-2);
  transition: transform .18s ease, border-color .18s ease, background-color .18s ease;
}

.page-home .archive__card:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
  background: var(--paper-2);
}

.page-home .archive__ver {
  font-size: var(--fs-31);
  line-height: 1;
  color: var(--ink);
}

.page-home .archive__card .tag {
  align-self: flex-start;
}

.page-home .archive__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--char);
}

.page-home .archive__meta {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--graphite);
}

.page-home .archive__foot {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding-left: 16px;
  border-left: 4px solid var(--orange);
  font-size: var(--fs-16);
  color: var(--char);
}

.page-home .archive__foot a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-home .archive__foot a:hover {
  color: var(--orange);
}

/* ============ 场景快捷 ============ */
.page-home .shortcuts__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.2vw, 22px);
}

.page-home .shortcut {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 28px);
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border: 1px solid var(--ink);
  transition: transform .18s ease, background-color .18s ease;
}

.page-home .shortcut:hover,
.page-home .shortcut:focus-visible {
  transform: translateY(-2px);
  background: var(--ink-deep);
}

.page-home .shortcut__num {
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--orange-soft);
}

.page-home .shortcut h3 {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 900;
  line-height: 1.35;
  color: var(--paper);
}

.page-home .shortcut p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(246, 241, 228, .82);
}

.page-home .shortcut__go {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line-paper);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--cream);
}

/* ============ 收束条 ============ */
.page-home .closing {
  padding: clamp(32px, 4.6vw, 56px) 0 clamp(48px, 6vw, 84px);
}

.page-home .closing__box {
  display: grid;
  gap: 22px;
  padding: clamp(24px, 3.4vw, 44px);
  background: var(--ink);
  color: var(--paper);
  border-left: 6px solid var(--orange);
}

.page-home .closing__text {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(246, 241, 228, .9);
}

.page-home .closing__text a {
  color: var(--cream);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-home .closing__text a:hover {
  color: var(--orange-soft);
}

.page-home .closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ 桌面增强 ============ */
@media (min-width: 900px) {
  .page-home .hero::before {
    clip-path: polygon(62% 0, 100% 0, 100% 100%, 34% 100%);
  }

  .page-home .hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-home .hero__board {
    padding-top: 28px;
  }

  .page-home .board {
    margin-top: -68px;
    margin-left: -28px;
    margin-right: 28px;
    background: var(--ink-deep);
  }

  .page-home .band__inner {
    grid-template-columns: var(--home-rail) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 44px);
  }

  .page-home .rail {
    display: block;
    position: relative;
    border-right: 1px solid var(--line);
  }

  .page-home .rail::before {
    content: "";
    position: absolute;
    top: 4px;
    right: -1px;
    width: 9px;
    height: 100%;
    background-image: repeating-linear-gradient(to bottom, var(--line-2) 0 1px, transparent 1px 18px);
    background-repeat: repeat-y;
  }

  .page-home .rail__num {
    position: sticky;
    top: 110px;
    display: block;
    padding: 2px 0;
    font-size: var(--fs-12);
    letter-spacing: .08em;
    color: var(--graphite);
  }

  .page-home .routes__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(20px, 2.6vw, 32px);
  }

  .page-home .route-card:nth-child(2) {
    margin-top: 28px;
  }

  .page-home .finder__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-home .archive__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
  }

  .page-home .archive__card:nth-child(even) {
    margin-top: 18px;
  }

  .page-home .shortcuts__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .closing__box {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }

  .page-home .closing__links {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1180px) {
  .page-home .hero__lede {
    font-size: var(--fs-20);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .dial__value {
    animation: none;
    stroke-dashoffset: 90.5;
  }

  .page-home .route-card,
  .page-home .archive__card,
  .page-home .shortcut {
    transition: none;
  }
}