/* =========================================================
   首页 · page-home
   ========================================================= */

.page-home {
  --ph-hair: rgba(10, 10, 11, .16);
  --ph-onDark: rgba(246, 243, 239, .74);
  background: var(--c-paper);
  color: var(--c-ink);
  font-family: var(--f-sans);
}

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

.page-home .section__head {
  margin: 0 0 32px;
}

.page-home .section__index {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 10px;
  background: var(--c-ink);
  color: var(--c-flame);
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .16em;
  font-variant-numeric: tabular-nums;
}

.page-home .section__title {
  margin: 0 0 12px;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: 28px;
  line-height: 1.24;
  letter-spacing: -.01em;
  max-width: 18em;
}

.page-home .section__lead {
  margin: 0;
  max-width: 36em;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--c-tungsten);
}

/* ---------- 封面 ---------- */

.page-home .hero {
  position: relative;
  padding: 44px 0 0;
  background: var(--c-ink);
  color: var(--c-paper);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(246, 243, 239, .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(246, 243, 239, .05) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.page-home .hero__kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--c-caramel);
}

.page-home .hero__pulse {
  display: inline-block;
  width: 9px;
  height: 9px;
  background: var(--c-flame);
  border-radius: 50%;
  animation: ph-pulse 2s var(--ease) infinite;
}

@keyframes ph-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 90, 31, .55); }
  70%  { box-shadow: 0 0 0 12px rgba(255, 90, 31, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 90, 31, 0); }
}

.page-home .hero__title {
  margin: 0 0 20px;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .hero__title-mark {
  color: var(--c-flame);
}

.page-home .hero__lead {
  margin: 0 0 28px;
  max-width: 30em;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--ph-onDark);
}

.page-home .hero__cta {
  display: inline-block;
}

.page-home .hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--bd) solid var(--c-paper);
  background: var(--c-night);
}

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

.page-home .hero__facts {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  max-width: var(--w-max);
  margin: 36px auto 0;
  padding: 22px var(--pad-x) 34px;
  border-top: 1px solid rgba(246, 243, 239, .16);
}

.page-home .hero__fact dt {
  margin: 0 0 6px;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: rgba(246, 243, 239, .58);
}

.page-home .hero__fact dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.page-home .hero__num {
  font-family: var(--f-mono);
  font-size: var(--fs-26);
  font-weight: 700;
  line-height: 1;
  color: var(--c-flame);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

.page-home .hero__unit {
  font-size: var(--fs-14);
  color: rgba(246, 243, 239, .62);
}

/* ---------- 四件事 ---------- */

.page-home .lanes {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 60px var(--pad-x) 48px;
}

.page-home .lanes__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-home .lane {
  position: relative;
  padding: 24px 22px;
  background: var(--c-white);
  border: var(--bd) solid var(--c-ink);
  box-shadow: var(--sh-sm);
  transition: transform var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease);
}

.page-home .lane:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--sh-md);
}

.page-home .lane__num {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: var(--fs-20);
  font-weight: 700;
  color: var(--c-flame);
  font-variant-numeric: tabular-nums;
}

.page-home .lane__title {
  margin: 0 0 10px;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: var(--fs-26);
  letter-spacing: -.01em;
}

.page-home .lane__text {
  margin: 0 0 18px;
  max-width: 30em;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--c-iron);
}

.page-home .lane__link {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--f-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 3px solid var(--c-flame);
  transition: color var(--t-fast) var(--ease);
}

.page-home .lane__link:hover {
  color: var(--c-flame);
}

.page-home .lane__media {
  margin: 20px 0 0;
  border: var(--bd) solid var(--c-ink);
  overflow: hidden;
}

.page-home .lane__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .lane--data {
  background: var(--c-night);
  color: var(--c-paper);
}

.page-home .lane--data .lane__text {
  color: var(--ph-onDark);
}

.page-home .lane--data .lane__num {
  color: var(--c-cyan);
}

.page-home .lane--data .lane__link {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

/* ---------- 本轮焦点 ---------- */

.page-home .spotlight {
  padding: 60px 0;
  background: var(--c-white);
  border-top: var(--bd) solid var(--c-ink);
  border-bottom: var(--bd) solid var(--c-ink);
}

.page-home .spotlight .section__head,
.page-home .spotlight__body {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.page-home .spotlight__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 8px;
}

.page-home .spotlight__media {
  margin: 0;
  overflow: hidden;
  border: var(--bd) solid var(--c-ink);
  box-shadow: var(--sh-md);
}

.page-home .spotlight__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .spotlight__subtitle {
  margin: 0 0 16px;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: var(--fs-20);
}

.page-home .spotlight__steps {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-home .spotlight__steps li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--ph-hair);
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--c-iron);
}

.page-home .spotlight__steps li:first-child {
  border-top: 1px solid var(--ph-hair);
}

.page-home .spotlight__step {
  flex: 0 0 auto;
  font-family: var(--f-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--c-flame);
  font-variant-numeric: tabular-nums;
}

/* ---------- 数据面板预览 ---------- */

.page-home .metrics {
  position: relative;
  padding: 60px 0;
  background: var(--c-night);
  color: var(--c-paper);
  overflow: hidden;
}

.page-home .metrics__backdrop {
  position: absolute;
  inset: 0;
  opacity: .2;
  pointer-events: none;
}

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

.page-home .metrics__inner {
  position: relative;
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.page-home .metrics .section__title {
  color: var(--c-paper);
}

.page-home .metrics .section__lead {
  color: var(--ph-onDark);
}

.page-home .metrics .section__index {
  background: var(--c-flame);
  color: var(--c-ink);
}

.page-home .metrics__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .metric-card {
  position: relative;
  padding: 22px 20px 24px;
  background: rgba(11, 27, 51, .78);
  border: var(--bd) solid var(--c-paper);
  transition: background var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
}

.page-home .metric-card:hover,
.page-home .metric-card:focus {
  background: rgba(45, 212, 191, .1);
  outline: none;
}

.page-home .metric-card__order {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-cyan);
}

.page-home .metric-card__name {
  margin: 0 0 10px;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: var(--fs-26);
  color: var(--c-paper);
}

.page-home .metric-card__hint {
  margin: 0;
  font-family: var(--f-mono);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: rgba(246, 243, 239, .72);
  font-variant-numeric: tabular-nums;
}

.page-home .metric-card__detail {
  margin: 12px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-caramel);
}

/* ---------- 主场筛选 ---------- */

.page-home .finder {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 60px var(--pad-x);
}

.page-home .picker {
  margin: 0 0 28px;
  background: var(--c-white);
  border: var(--bd) solid var(--c-ink);
  box-shadow: var(--sh-md);
}

.page-home .picker__tabs {
  display: flex;
  border-bottom: var(--bd) solid var(--c-ink);
}

.page-home .picker__tab {
  flex: 1 1 0;
  padding: 16px 10px;
  text-align: center;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: var(--fs-17);
  color: var(--c-ink);
  text-decoration: none;
  background: var(--c-paper);
  transition: background var(--t-fast) var(--ease);
}

.page-home .picker__tab + .picker__tab {
  border-left: var(--bd) solid var(--c-ink);
}

.page-home .picker__tab--city {
  background: var(--c-flame);
}

.page-home .picker:has(#picker-team:target) .picker__tab--city {
  background: var(--c-paper);
}

.page-home .picker:has(#picker-team:target) .picker__tab--team {
  background: var(--c-flame);
}

.page-home .picker__panel {
  display: none;
  padding: 24px 20px 26px;
}

.page-home .picker__panel--city {
  display: block;
}

.page-home .picker__panel:target {
  display: block;
}

.page-home .picker:has(.picker__panel:target) .picker__panel--city:not(:target) {
  display: none;
}

.page-home .picker__flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
}

.page-home .picker__stage {
  flex: 1 1 96px;
  padding: 14px 12px;
  text-align: center;
  background: var(--c-paper);
  border: 2px solid var(--c-ink);
}

.page-home .picker__stage-num {
  margin: 0 0 4px;
  font-family: var(--f-mono);
  font-size: var(--fs-26);
  font-weight: 700;
  color: var(--c-flame);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.page-home .picker__stage-label {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--c-tungsten);
}

.page-home .picker__chip {
  flex: 1 1 120px;
  padding: 12px 14px;
  text-align: center;
  font-size: var(--fs-14);
  font-weight: 500;
  background: var(--c-night);
  color: var(--c-paper);
  border: 2px solid var(--c-ink);
}

.page-home .picker__arrow {
  font-family: var(--f-mono);
  font-size: var(--fs-20);
  color: var(--c-flame);
}

.page-home .picker__note {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-tungsten);
}

.page-home .finder__result {
  padding: 24px 22px;
  background: var(--c-paper);
  border-left: 6px solid var(--c-flame);
}

.page-home .finder__result-title {
  margin: 0 0 14px;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: var(--fs-20);
}

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

.page-home .finder__list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-17);
  line-height: 1.7;
  color: var(--c-iron);
}

.page-home .finder__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 9px;
  height: 2px;
  background: var(--c-ink);
}

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

/* ---------- 为什么常来 ---------- */

.page-home .why__band {
  height: 14px;
  background: repeating-linear-gradient(-60deg, var(--c-flame) 0 12px, var(--c-ink) 12px 24px);
  border-top: var(--bd) solid var(--c-ink);
  border-bottom: var(--bd) solid var(--c-ink);
}

.page-home .why {
  padding: 56px 0 64px;
  background: var(--c-paper);
}

.page-home .why__inner {
  max-width: var(--w-max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.page-home .why__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-home .why__item {
  padding-top: 18px;
  border-top: var(--bd) solid var(--c-ink);
}

.page-home .why__item-title {
  margin: 0 0 10px;
  font-family: var(--f-sans);
  font-weight: 900;
  font-size: var(--fs-20);
  letter-spacing: -.01em;
}

.page-home .why__item p {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--c-iron);
}

.page-home .why__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 26px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--ph-hair);
}

.page-home .why__link {
  font-family: var(--f-mono);
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--c-ink);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--c-iron);
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-home .why__link:hover {
  color: var(--c-flame);
  border-bottom-color: var(--c-flame);
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 700px) {
  .page-home .section__title {
    font-size: 34px;
  }

  .page-home .metrics__grid {
    gap: 0;
    border: var(--bd) solid var(--c-paper);
  }

  .page-home .metric-card {
    border: none;
    background: rgba(11, 27, 51, .66);
  }

  .page-home .metric-card + .metric-card {
    border-left: var(--bd) solid var(--c-paper);
  }

  .page-home .why__list {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-home .hero {
    padding: 64px 0 0;
  }

  .page-home .hero__inner {
    grid-template-columns: 1.32fr 1fr;
    gap: 0;
    align-items: stretch;
    padding: 0 0 0 var(--pad-x);
  }

  .page-home .hero__copy {
    padding: 28px 56px 40px 0;
  }

  .page-home .hero__title {
    font-size: var(--fs-72);
    line-height: 1.06;
  }

  .page-home .hero__media {
    margin-left: -48px;
    clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-home .hero__media img {
    height: 100%;
    min-height: 440px;
    aspect-ratio: auto;
  }

  .page-home .hero__facts {
    margin-top: 48px;
    padding-bottom: 44px;
  }

  .page-home .hero__num {
    font-size: var(--fs-34);
  }

  .page-home .lanes {
    padding: 96px var(--pad-x) 72px;
  }

  .page-home .lanes__list {
    grid-template-columns: repeat(12, 1fr);
    gap: 24px;
  }

  .page-home .lane--map     { grid-column: span 7; }
  .page-home .lane--replay  { grid-column: span 5; }
  .page-home .lane--history { grid-column: span 5; }
  .page-home .lane--data    { grid-column: span 7; }

  .page-home .spotlight {
    padding: 88px 0;
  }

  .page-home .spotlight__body {
    grid-template-columns: 1.08fr 1fr;
    gap: 44px;
    align-items: start;
  }

  .page-home .metrics {
    padding: 88px 0;
  }

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

  .page-home .metric-card {
    min-height: 232px;
    padding: 28px 24px 30px;
  }

  .page-home .metric-card__detail {
    margin: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--t-slow) var(--ease), opacity var(--t-mid) var(--ease), margin var(--t-mid) var(--ease);
  }

  .page-home .metric-card:hover .metric-card__detail,
  .page-home .metric-card:focus .metric-card__detail {
    margin: 12px 0 0;
    max-height: 160px;
    opacity: 1;
  }

  .page-home .finder {
    padding: 88px var(--pad-x);
  }

  .page-home .picker__panel {
    padding: 32px 30px 34px;
  }

  .page-home .finder__result {
    padding: 28px 30px;
  }

  .page-home .finder__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 32px;
  }

  .page-home .why {
    padding: 68px 0 88px;
  }
}

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

  .page-home .lane,
  .page-home .metric-card {
    transition: none;
  }
}