/* ============================================================
   主页专属样式 · 作用域 .page-home
   ============================================================ */

.page-home {
  --home-edge: clamp(16px, 3vw, 40px);
  --home-gap: clamp(18px, 3vw, 34px);
  --home-notch: 18px;
  background: var(--paper);
  color: var(--black);
  overflow-x: hidden;
}

.page-home .sec {
  padding: clamp(44px, 7vw, 88px) 0;
}

.page-home .sec__head {
  max-width: 64ch;
  margin-bottom: var(--home-gap);
}

.page-home .sec__title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(25px, 4.1vw, 46px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 10px 0 0;
}

.page-home .sec__lede {
  margin-top: 14px;
  color: var(--gray);
}

.page-home .sec__title--invert,
.page-home .sec__lede--invert {
  color: var(--paper);
}

.page-home .sec__lede--invert {
  color: var(--brass-lt);
}

/* ---------- 首屏 · 框景 ---------- */

.page-home .hero {
  padding: clamp(22px, 4vw, 48px) 0 0;
}

.page-home .hero__frame {
  position: relative;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
  padding: calc(var(--home-edge) + 14px) var(--home-edge) var(--home-edge)
    calc(var(--home-edge) + 14px);
  display: grid;
  gap: var(--home-gap);
}

.page-home .hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 9px;
  border-bottom: 1px solid var(--rule);
  background-image: repeating-linear-gradient(
    90deg,
    var(--rule-strong) 0 1px,
    transparent 1px 26px
  );
  pointer-events: none;
}

.page-home .hero__frame::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 9px;
  border-right: 1px solid var(--rule);
  background-image: repeating-linear-gradient(
    180deg,
    var(--rule-strong) 0 1px,
    transparent 1px 26px
  );
  pointer-events: none;
}

.page-home .hero__title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(29px, 5.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 12px 0 0;
}

.page-home .hero__lede {
  margin-top: 18px;
  color: var(--gray);
}

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

.page-home .hero__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--rule-strong);
  background: var(--ink-deep);
}

.page-home .hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .hero__metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.page-home .metric {
  background: var(--paper);
  padding: 16px 14px 18px;
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-home .metric__num {
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.page-home .metric__label {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .metric__note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--gray);
}

@media (min-width: 620px) {
  .page-home .hero__metrics {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 940px) {
  .page-home .hero__frame {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    grid-template-areas:
      "copy figure"
      "metrics figure";
    align-items: start;
  }
  .page-home .hero__copy { grid-area: copy; }
  .page-home .hero__figure { grid-area: figure; height: 100%; }
  .page-home .hero__figure img { height: 100%; aspect-ratio: auto; min-height: 380px; }
  .page-home .hero__metrics { grid-area: metrics; }
}

/* ---------- 编号索引条 ---------- */

.page-home .idx {
  background: var(--ink-deep);
  border-top: 1px solid var(--rule-invert);
  border-bottom: 1px solid var(--rule-invert);
  margin-top: clamp(28px, 5vw, 56px);
}

.page-home .idx__track {
  display: flex;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-home .idx__track::-webkit-scrollbar {
  height: 4px;
}

.page-home .idx__track::-webkit-scrollbar-thumb {
  background: var(--brass);
}

.page-home .idx__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 20px;
  border-right: 1px solid var(--rule-invert);
  color: var(--paper);
  font-family: var(--sans-cond);
  font-size: 14px;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

.page-home .idx__item:hover,
.page-home .idx__item:focus-visible {
  background: var(--ink-mid);
  color: var(--brass-lt);
}

.page-home .idx__n {
  font-size: 12px;
  color: var(--brass);
}

.page-home .idx__item:hover .idx__n,
.page-home .idx__item:focus-visible .idx__n {
  color: var(--brass-lt);
}

/* ---------- 01 编号 ---------- */

.page-home .sec--batch {
  background: var(--paper);
}

.page-home .band {
  margin: 0 0 var(--home-gap);
  border: 1px solid var(--rule);
  background: var(--ink-deep);
}

.page-home .band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-home .band figcaption {
  padding: 12px 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--brass-lt);
  border-top: 1px solid var(--rule-invert);
}

.page-home .sec--batch p {
  max-width: 66ch;
}

.page-home .sec--batch .col-main p + p {
  margin-top: 16px;
}

.page-home .aside-note__title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-home .aside-note p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--black);
}

.page-home .aside-note__link {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-home .aside-note__link:hover,
.page-home .aside-note__link:focus-visible {
  color: var(--ink);
}

/* ---------- 02 交付档位 ---------- */

.page-home .sec--tier {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-home .tiers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
  counter-reset: tier;
}

.page-home .tier {
  background: var(--paper);
  padding: 22px 18px 24px;
  display: grid;
  gap: 6px;
  position: relative;
}

.page-home .tier::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--ink);
}

.page-home .tier:last-child::before {
  background: var(--cinnabar);
}

.page-home .tier__badge {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-mid);
  text-transform: none;
}

.page-home .tier__days {
  font-size: clamp(44px, 7vw, 68px);
  line-height: 0.95;
  color: var(--ink);
  letter-spacing: -0.03em;
}

.page-home .tier__unit {
  font-family: var(--sans-cond);
  font-size: 13px;
  color: var(--gray);
}

.page-home .tier__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--black);
  max-width: 40ch;
}

.page-home .tier__foot {
  margin-top: 20px;
}

.page-home .tier__foot a {
  color: var(--ink);
  border-bottom: 1px solid var(--brass);
  text-decoration: none;
}

@media (min-width: 800px) {
  .page-home .tiers {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 03 城市点阵 ---------- */

.page-home .sec--cities {
  background: var(--ink);
  color: var(--paper);
}

.page-home .sec--cities .sec__head {
  max-width: 70ch;
}

.page-home .sec--cities .eyebrow {
  color: var(--brass);
}

.page-home .cities__layout {
  display: grid;
  gap: var(--home-gap);
  margin-bottom: var(--home-gap);
}

.page-home .cities__figure {
  margin: 0;
  border: 1px solid var(--rule-invert);
  background: var(--ink-deep);
}

.page-home .cities__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.92;
}

.page-home .cities__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 1px;
  background: var(--rule-invert);
  border: 1px solid var(--rule-invert);
}

.page-home .region {
  background: var(--ink);
  padding: 14px 14px 16px;
  display: grid;
  gap: 10px;
  transition: background 220ms var(--ease);
}

.page-home .region:hover {
  background: var(--ink-mid);
}

.page-home .region__name {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-home .region__dots {
  display: block;
  height: 34px;
  background-image: radial-gradient(circle, var(--brass) 1.5px, transparent 1.6px);
  background-size: 12px 12px;
  opacity: 0.62;
  transition: opacity 220ms var(--ease);
}

.page-home .region:hover .region__dots {
  opacity: 1;
}

.page-home .city-tiers {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-invert);
  border-top: 1px solid var(--rule-invert);
  border-bottom: 1px solid var(--rule-invert);
}

.page-home .city-tiers__item {
  background: var(--ink);
  padding: 18px 16px;
  display: grid;
  gap: 4px;
  align-content: start;
}

.page-home .city-tiers__n {
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1;
  color: var(--brass-lt);
}

.page-home .city-tiers__l {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-home .city-tiers__d {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 242, 233, 0.72);
  max-width: 42ch;
}

@media (min-width: 620px) {
  .page-home .city-tiers {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 900px) {
  .page-home .cities__layout {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }
  .page-home .cities__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 04 规格族 ---------- */

.page-home .sec--spec {
  background: var(--paper);
}

.page-home .spec__figure {
  margin: 0 0 var(--home-gap);
  border: 1px solid var(--rule);
  background: var(--paper-2);
}

.page-home .spec__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .specs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.page-home .spec {
  background: var(--paper);
  padding: 20px 16px 22px;
  display: grid;
  gap: 8px;
  align-content: start;
  clip-path: polygon(
    0 0,
    calc(100% - var(--home-notch)) 0,
    100% var(--home-notch),
    100% 100%,
    var(--home-notch) 100%,
    0 calc(100% - var(--home-notch))
  );
}

.page-home .spec__n {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--brass);
}

.page-home .spec__name {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  margin: 0;
}

.page-home .spec__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--black);
  max-width: 38ch;
}

.page-home .spec__count {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gray);
  border-top: 1px solid var(--rule);
  padding-top: 10px;
}

@media (min-width: 780px) {
  .page-home .specs {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 05 合作场景 ---------- */

.page-home .sec--scenes {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-home .scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule-strong);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.page-home .scene__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "n name"
    "n desc"
    "n go";
  gap: 4px 16px;
  padding: 20px 16px;
  background: var(--paper);
  color: var(--black);
  text-decoration: none;
  transition: background 220ms var(--ease), transform 220ms var(--ease);
}

.page-home .scene__link:hover,
.page-home .scene__link:focus-visible {
  background: var(--ink);
  transform: translateX(4px);
}

.page-home .scene__n {
  grid-area: n;
  font-size: 13px;
  color: var(--brass);
  padding-top: 4px;
}

.page-home .scene__name {
  grid-area: name;
  font-family: var(--serif);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.page-home .scene__desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.75;
  color: var(--black);
  max-width: 74ch;
}

.page-home .scene__go {
  grid-area: go;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cinnabar);
}

.page-home .scene__link:hover .scene__name,
.page-home .scene__link:focus-visible .scene__name {
  color: var(--paper);
}

.page-home .scene__link:hover .scene__desc,
.page-home .scene__link:focus-visible .scene__desc {
  color: rgba(245, 242, 233, 0.78);
}

.page-home .scene__link:hover .scene__go,
.page-home .scene__link:focus-visible .scene__go {
  color: var(--brass-lt);
}

@media (min-width: 760px) {
  .page-home .scene__link {
    grid-template-columns: 56px minmax(0, 240px) minmax(0, 1fr) auto;
    grid-template-areas: "n name desc go";
    align-items: baseline;
    gap: 10px 20px;
    padding: 22px 20px;
  }
  .page-home .scene__go {
    margin-top: 0;
  }
}

/* ---------- 06 四阶段 ---------- */

.page-home .sec--flow {
  background: var(--paper);
}

.page-home .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: flow;
  border-top: 1px solid var(--rule-strong);
}

.page-home .flow__step {
  border-bottom: 1px solid var(--rule-strong);
}

.page-home .flow__details {
  background: var(--paper);
}

.page-home .flow__summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 14px;
  padding: 20px 4px;
  transition: background 200ms var(--ease);
}

.page-home .flow__summary::-webkit-details-marker {
  display: none;
}

.page-home .flow__summary:hover {
  background: var(--paper-2);
}

.page-home .flow__n {
  font-size: 13px;
  color: var(--brass);
}

.page-home .flow__name {
  font-family: var(--serif);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.page-home .flow__hint {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gray);
  justify-self: end;
  text-align: right;
}

.page-home .flow__details[open] .flow__hint {
  color: var(--cinnabar);
}

.page-home .flow__body {
  padding: 0 4px 24px 40px;
  max-width: 72ch;
}

.page-home .flow__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--black);
}

.page-home .flow__body p:last-child {
  margin-bottom: 0;
}

.page-home .flow__body strong {
  font-weight: 700;
  color: var(--ink);
}

@media (max-width: 560px) {
  .page-home .flow__summary {
    grid-template-columns: auto 1fr;
  }
  .page-home .flow__hint {
    grid-column: 2;
    justify-self: start;
    text-align: left;
    margin-top: 4px;
  }
  .page-home .flow__body {
    padding-left: 4px;
  }
}

/* ---------- 07 疑问与通道 ---------- */

.page-home .sec--help {
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
}

.page-home .help {
  display: grid;
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}

.page-home .help__card {
  background: var(--paper);
  padding: 24px 20px 26px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-home .help__card--ink {
  background: var(--ink);
  color: var(--paper);
}

.page-home .help__kicker {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cinnabar);
}

.page-home .help__card--ink .help__kicker {
  color: var(--brass);
}

.page-home .help__title {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 800;
  color: var(--ink);
  margin: 0;
}

.page-home .help__card--ink .help__title {
  color: var(--paper);
}

.page-home .help__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--black);
  max-width: 46ch;
}

.page-home .help__card--ink p {
  color: rgba(245, 242, 233, 0.8);
}

.page-home .help__card .btn {
  justify-self: start;
  margin-top: 6px;
}

.page-home .help__note {
  margin-top: 22px;
}

.page-home .help__note a {
  color: var(--ink);
  border-bottom: 1px solid var(--brass);
  text-decoration: none;
}

.page-home .help__note a:hover,
.page-home .help__note a:focus-visible {
  color: var(--cinnabar);
}

@media (min-width: 820px) {
  .page-home .help {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 深底区块内的通用文字色修正 ---------- */

.page-home .sec--cities .lede,
.page-home .sec--cities p {
  color: rgba(245, 242, 233, 0.82);
}

.page-home .sec--cities .sec__lede {
  color: var(--brass-lt);
}

/* ---------- 减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-home .idx__item,
  .page-home .region,
  .page-home .region__dots,
  .page-home .scene__link,
  .page-home .flow__summary {
    transition: none;
  }
  .page-home .scene__link:hover,
  .page-home .scene__link:focus-visible {
    transform: none;
  }
}
<<<END>>>