.page-home {
  --home-pad: clamp(20px, 3vw, 36px);
  --home-head-gap: clamp(24px, 3vw, 40px);
  background: var(--ink-980);
  color: var(--paper-100);
  overflow-x: hidden;
}

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

/* ---------- 外壳：左侧竖向索引 + 内容流 ---------- */
.page-home .home-shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px var(--edge) 0;
}

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

/* ---------- 纵向索引 ---------- */
.page-home .home-rail {
  position: relative;
  margin: 0 0 24px;
}

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

.page-home .home-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .home-rail__list::-webkit-scrollbar {
  display: none;
}

.page-home .rail-link {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 11px;
  border: 1px solid var(--line-dark);
  color: var(--silver-400);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}

.page-home .rail-link:hover {
  color: var(--paper-100);
  border-color: var(--silver-400);
}

.page-home .rail-link[aria-current="true"] {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(56, 225, 206, 0.08);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  padding: 28px 0 48px;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .hero-grid {
  display: grid;
  gap: 32px;
}

.page-home .hero-context {
  margin: 0 0 16px;
  padding-top: 12px;
  border-top: 2px solid var(--orange);
  color: var(--silver-400);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
}

.page-home .hero-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.1rem, 7vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
}

.page-home .hero-sub {
  max-width: 44ch;
  margin: 20px 0 0;
  color: rgba(244, 238, 227, 0.72);
  font-size: 1rem;
  line-height: 1.8;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .hero-foot {
  margin: 22px 0 0;
  color: var(--silver-600);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
}

.page-home .hero-visual {
  position: relative;
  min-width: 0;
}

.page-home .hero-frame {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  background: var(--ink-800);
}

.page-home .hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
  filter: saturate(0.55) contrast(1.06);
}

.page-home .hero-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(11, 22, 34, 0.55) 0 1px,
    transparent 1px 4px
  );
  opacity: 0.32;
  pointer-events: none;
}

.page-home .hero-stats {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 6px;
  padding: 14px 16px 16px;
  background: var(--ink-800);
  border: 1px solid var(--line-dark);
}

.page-home .stat--b {
  background: var(--paper-100);
  border-color: var(--paper-200);
  color: var(--ink-980);
}

.page-home .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 9vw, 3rem);
  font-weight: 600;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
}

.page-home .stat--b .stat-num {
  color: var(--ink-980);
}

.page-home .stat-unit {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--silver-400);
}

.page-home .stat--b .stat-unit {
  color: var(--silver-600);
}

.page-home .stat-label {
  width: 100%;
  margin-top: 6px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--silver-400);
}

.page-home .stat--b .stat-label {
  color: var(--silver-600);
}

.page-home .hero-scroll {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0 0;
  color: var(--silver-400);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
}

.page-home .hero-scroll::before {
  content: "";
  display: block;
  width: 72px;
  height: 2px;
  background: var(--orange);
}

/* ---------- 章节通用 ---------- */
.page-home .home-section {
  padding: clamp(44px, 7vw, 88px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .section-head {
  margin-bottom: var(--home-head-gap);
}

.page-home .section-index {
  margin: 0 0 12px;
  color: var(--orange);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
}

.page-home .section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 4.6vw, 2.5rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.page-home .section-sub {
  max-width: 58ch;
  margin: 14px 0 0;
  color: var(--silver-400);
  font-size: 0.94rem;
  line-height: 1.8;
}

/* ---------- 区域索引条 ---------- */
.page-home .region-strip {
  display: grid;
  gap: 24px;
}

.page-home .region-shot {
  margin: 0;
  border: 1px solid var(--line-dark);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--ink-800);
}

.page-home .region-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.6) contrast(1.05);
  opacity: 0.8;
}

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

.page-home .region-item {
  display: grid;
  gap: 6px 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line-dark);
}

.page-home .region-item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.page-home .region-code {
  color: var(--orange);
  font-size: 0.95rem;
  letter-spacing: 0.14em;
}

.page-home .region-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}

.page-home .region-item p {
  margin: 0;
  color: var(--silver-400);
  font-size: 0.9rem;
  line-height: 1.75;
}

/* ---------- 事项筛序 ---------- */
.page-home .filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-home .filter-btn {
  padding: 8px 14px;
  border: 1px solid var(--line-dark);
  color: var(--silver-400);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  user-select: none;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}

.page-home .filter-btn:hover {
  color: var(--paper-100);
  border-color: var(--silver-400);
}

.page-home .filter-input:focus-visible ~ .filter-bar {
  outline: 1px dashed var(--cyan);
  outline-offset: 4px;
}

.page-home #cat-all:checked ~ .filter-bar label[for="cat-all"],
.page-home #cat-inspect:checked ~ .filter-bar label[for="cat-inspect"],
.page-home #cat-maint:checked ~ .filter-bar label[for="cat-maint"],
.page-home #cat-coord:checked ~ .filter-bar label[for="cat-coord"],
.page-home #cat-query:checked ~ .filter-bar label[for="cat-query"] {
  color: var(--ink-980);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-home #cat-inspect:checked ~ .item-grid .item-card:not(.cat-inspect),
.page-home #cat-maint:checked ~ .item-grid .item-card:not(.cat-maint),
.page-home #cat-coord:checked ~ .item-grid .item-card:not(.cat-coord),
.page-home #cat-query:checked ~ .item-grid .item-card:not(.cat-query) {
  display: none;
}

.page-home .item-grid {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-home .item-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 18px 18px 20px;
  background: var(--ink-800);
  animation: homeItemIn 140ms ease-out both;
}

.page-home .item-no {
  color: var(--silver-600);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
}

.page-home .item-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.01em;
}

.page-home .item-desc {
  margin: 0;
  color: var(--silver-400);
  font-size: 0.86rem;
  line-height: 1.68;
}

@keyframes homeItemIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 核价与周期 ---------- */
.page-home .pricing-grid {
  display: grid;
  gap: 20px;
}

.page-home .pricing-col {
  padding: var(--home-pad);
  border: 1px solid var(--line-dark);
  min-width: 0;
}

.page-home .pricing-col--paper {
  background: var(--paper-100);
  border-color: var(--paper-200);
  color: var(--ink-980);
}

.page-home .pricing-col--ink {
  background: var(--ink-800);
}

.page-home .pricing-col__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

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

.page-home .price-item {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--line-light);
}

.page-home .price-item:last-child {
  border-bottom: 1px solid var(--line-light);
}

.page-home .price-key {
  color: var(--orange);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
}

.page-home .price-val {
  font-size: 0.92rem;
  line-height: 1.72;
}

.page-home .pricing-note {
  margin: 18px 0 0;
  color: var(--silver-600);
  font-size: 0.82rem;
  line-height: 1.7;
}

.page-home .price-shot {
  width: min(210px, 100%);
  margin: 22px 0 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line-light);
}

.page-home .price-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.08);
}

.page-home .cycle-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .cycle-item {
  position: relative;
  padding: 0 0 20px 22px;
  border-left: 1px solid var(--line-dark);
}

.page-home .cycle-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-home .cycle-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 7px;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.page-home .cycle-key {
  display: block;
  color: var(--cyan);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
}

.page-home .cycle-item p {
  margin: 6px 0 0;
  color: rgba(244, 238, 227, 0.78);
  font-size: 0.92rem;
  line-height: 1.72;
}

.page-home .cycle-shot {
  margin: 26px 0 0;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  border: 1px solid var(--line-dark);
}

.page-home .cycle-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.62) contrast(1.06);
  opacity: 0.85;
}

/* ---------- 状态面板 ---------- */
.page-home .status-board {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
}

.page-home .status-row {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 12px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--line-dark);
  transition: background 0.18s;
}

.page-home .status-row:hover,
.page-home .status-row:focus {
  background: rgba(20, 38, 58, 0.6);
  outline: none;
}

.page-home .status-name {
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-home .status-val {
  color: var(--silver-400);
  font-size: 0.82rem;
  white-space: nowrap;
}

.page-home .status-note {
  grid-column: 2 / -1;
  color: var(--silver-600);
  font-size: 0.8rem;
  line-height: 1.65;
}

.page-home .status-more {
  margin: 20px 0 0;
}

.page-home .text-link {
  color: var(--cyan);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s;
}

.page-home .text-link:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 入口分流 ---------- */
.page-home .route-grid {
  display: grid;
  gap: 14px;
}

.page-home .route-card {
  display: block;
  padding: var(--home-pad);
  border: 1px solid var(--line-dark);
  background: var(--ink-800);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.18s, background 0.18s;
}

.page-home .route-card:hover {
  border-color: var(--cyan);
}

.page-home .route-card--wide {
  background: linear-gradient(162deg, var(--ink-800) 0%, var(--ink-980) 100%);
  border-left: 3px solid var(--orange);
}

.page-home .route-tag {
  display: block;
  margin-bottom: 14px;
  color: var(--orange);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
}

.page-home .route-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 3.6vw, 1.7rem);
  letter-spacing: -0.01em;
}

.page-home .route-desc {
  max-width: 46ch;
  margin: 12px 0 20px;
  color: var(--silver-400);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-home .route-go {
  display: inline-block;
  color: var(--silver-400);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  transition: color 0.18s;
}

.page-home .route-card:hover .route-go {
  color: var(--cyan);
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-home .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .item-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .region-item {
    grid-template-columns: 64px minmax(0, 1fr);
    align-items: start;
  }

  .page-home .region-code {
    grid-row: span 2;
    padding-top: 3px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-home .home-shell {
    display: grid;
    grid-template-columns: 104px minmax(0, 1fr);
    column-gap: clamp(24px, 3vw, 48px);
    padding-top: 40px;
  }

  .page-home .home-rail {
    position: sticky;
    top: 140px;
    align-self: start;
    height: max-content;
    margin: 0;
    padding-left: 14px;
  }

  .page-home .home-rail::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background-image: repeating-linear-gradient(
        to bottom,
        var(--orange) 0 1px,
        transparent 1px 128px
      ),
      repeating-linear-gradient(
        to bottom,
        var(--silver-600) 0 1px,
        transparent 1px 16px
      );
    opacity: 0.55;
  }

  .page-home .home-rail__title {
    display: block;
    margin: 0 0 16px 5px;
    color: var(--silver-600);
    font-size: 0.66rem;
    letter-spacing: 0.3em;
    writing-mode: vertical-rl;
  }

  .page-home .home-rail__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-home .home-rail__list li + li {
    margin-top: 8px;
  }

  .page-home .rail-link {
    display: block;
    padding: 14px 7px;
    writing-mode: vertical-rl;
    letter-spacing: 0.22em;
  }

  .page-home .home-hero {
    padding: 12px 0 76px;
  }

  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
    align-items: start;
  }

  .page-home .hero-sub {
    font-size: 1.02rem;
  }

  .page-home .stat--b {
    transform: translateY(22px);
  }

  .page-home .stat--c {
    transform: translateY(-14px);
  }

  .page-home .hero-scroll {
    margin-top: 40px;
  }

  .page-home .region-strip {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-home .region-item:first-child {
    border-top: none;
    padding-top: 4px;
  }

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

  .page-home .pricing-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 24px;
    align-items: start;
  }

  .page-home .route-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    grid-template-rows: auto auto;
    gap: 14px;
  }

  .page-home .route-card--wide {
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: clamp(28px, 3vw, 44px);
  }

  .page-home .route-card--wide .route-title {
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  }
}

@media (min-width: 1240px) {
  .page-home .status-row {
    grid-template-columns: 14px 240px minmax(0, 1fr) 260px;
    gap: 4px 16px;
  }

  .page-home .status-note {
    grid-column: 4;
    text-align: right;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity 0.18s, transform 0.18s;
  }

  .page-home .status-row:hover .status-note,
  .page-home .status-row:focus .status-note {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .item-card {
    animation: none;
  }

  .page-home .stat--b,
  .page-home .stat--c,
  .page-home .status-note {
    transform: none;
    transition: none;
  }
}