.page-home {
  overflow-x: hidden;
}

.page-home .lt-section {
  padding-block: clamp(56px, 8vw, 104px);
}

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

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  padding-block: clamp(40px, 6vw, 88px) clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: -24% -12% auto -12%;
  height: 76%;
  background:
    radial-gradient(54% 62% at 78% 32%, rgba(53, 230, 210, 0.16), transparent 70%),
    radial-gradient(42% 52% at 10% 4%, rgba(110, 106, 133, 0.24), transparent 72%);
  pointer-events: none;
}

.page-home .home-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(30px, 5vw, 60px);
  align-items: center;
}

.page-home .home-hero__eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-home .home-hero__title {
  margin: 16px 0 0;
  max-width: 14em;
  font-size: clamp(32px, 7vw, 66px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ivory);
  text-shadow: 0 0 30px rgba(53, 230, 210, 0.16);
}

.page-home .home-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.8;
  color: var(--fog);
}

.page-home .hero-stats {
  margin-top: clamp(28px, 4vw, 40px);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .hero-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px 20px;
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
}

.page-home .hero-stat__key {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lilac);
}

.page-home .hero-stat__val {
  font-family: var(--mono);
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-home .hero-stat:nth-child(3) .hero-stat__val {
  color: var(--gold);
}

.page-home .hero-stat__note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--fog);
}

.page-home .home-hero__cta {
  margin-top: clamp(24px, 3vw, 34px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero-stack {
  position: relative;
  min-height: 300px;
  border: 1px solid var(--line-cyan);
  background: var(--panel);
  overflow: hidden;
}

.page-home .hero-stack__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
  filter: saturate(0.9);
}

.page-home .hero-stack__scrim {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(80% 60% at 78% 16%, rgba(53, 230, 210, 0.24), transparent 66%),
    radial-gradient(70% 60% at 8% 94%, rgba(232, 180, 87, 0.16), transparent 68%),
    linear-gradient(180deg, rgba(7, 16, 25, 0.3) 0%, rgba(7, 16, 25, 0.88) 100%);
}

.page-home .hero-plates {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  padding: clamp(12px, 3vw, 24px);
  box-sizing: border-box;
}

.page-home .hero-plates__layer polygon {
  fill: rgba(14, 27, 42, 0.74);
  stroke-width: 1.5;
  transition: fill 240ms ease-out, stroke 240ms ease-out;
}

.page-home .hero-plates__layer--top polygon {
  stroke: var(--cyan);
}

.page-home .hero-plates__layer--mid polygon {
  stroke: var(--gold);
}

.page-home .hero-plates__layer--base polygon {
  stroke: var(--cyan-dim);
}

.page-home .hero-plates__layer line {
  stroke: currentColor;
  stroke-width: 3;
  stroke-linecap: round;
  opacity: 0.45;
}

.page-home .hero-plates__layer--top {
  color: var(--cyan);
}

.page-home .hero-plates__layer--mid {
  color: var(--gold);
}

.page-home .hero-plates__layer--base {
  color: var(--cyan-dim);
}

.page-home .hero-plates__trace {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.4;
  stroke-dasharray: 7 12;
  opacity: 0.45;
  animation: home-trace 14s linear infinite;
}

@keyframes home-trace {
  to {
    stroke-dashoffset: -190;
  }
}

/* ---------- 三层归档 ---------- */

.page-home .archive {
  background: linear-gradient(180deg, var(--bg-soft), var(--bg));
  border-block: 1px solid var(--line-soft);
}

.page-home .archive__lead {
  max-width: 40em;
}

.page-home .archive__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-home .archive__item {
  position: relative;
}

.page-home .archive__card {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  background: linear-gradient(150deg, var(--panel-2), var(--panel) 62%);
  border: 1px solid var(--line);
  transition: border-color 240ms ease-out, transform 240ms ease-out, box-shadow 240ms ease-out;
}

.page-home .archive__card::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 26px;
  height: 26px;
  background: var(--bg-soft);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.page-home .archive__card:hover,
.page-home .archive__card:focus-within {
  border-color: var(--line-gold);
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -26px rgba(53, 230, 210, 0.6);
}

.page-home .archive__head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.page-home .archive__code {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-home .archive__card h3 {
  margin: 0 0 12px;
  font-size: clamp(20px, 2.6vw, 24px);
  line-height: 1.35;
  color: var(--ivory);
}

.page-home .archive__card p {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--fog);
}

.page-home .archive__facts {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .archive__facts li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.7;
  color: var(--fog);
}

.page-home .archive__facts b {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-home .archive__item--mid .archive__facts b {
  color: var(--gold);
}

.page-home .archive__interlude {
  margin: clamp(36px, 6vw, 64px) 0 0;
}

/* ---------- 新手路径 ---------- */

.page-home .start__inner {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

.page-home .start__prose {
  margin-top: 16px;
  color: var(--fog);
}

.page-home .start__intro .lt-btn {
  margin-top: 22px;
}

.page-home .start__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: home-step;
}

.page-home .start__step {
  counter-increment: home-step;
  position: relative;
  padding: 22px 22px 22px 66px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-cyan);
  transition: border-color 220ms ease-out, background 220ms ease-out;
}

.page-home .start__step::before {
  content: counter(home-step, decimal-leading-zero);
  position: absolute;
  left: 22px;
  top: 24px;
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-home .start__step:hover,
.page-home .start__step:focus-within {
  background: var(--panel-2);
  border-left-color: var(--gold);
}

.page-home .start__step h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ivory);
}

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

/* ---------- 玩法与节奏 ---------- */

.page-home .play {
  background: linear-gradient(180deg, var(--bg), var(--bg-soft) 70%);
  border-block: 1px solid var(--line-soft);
}

.page-home .play__body {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-home .play__meter {
  padding: 20px 22px 22px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
}

.page-home .play__meter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-home .play__meter-key {
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--fog);
}

.page-home .play__meter-val {
  font-family: var(--mono);
  font-size: clamp(20px, 3vw, 26px);
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-home .play__meter-track {
  display: block;
  margin-top: 14px;
  height: 6px;
  background: rgba(233, 226, 212, 0.08);
  overflow: hidden;
}

.page-home .play__meter-fill {
  display: block;
  height: 100%;
  width: 72%;
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan) 60%, var(--gold));
}

.page-home .play__meter-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--lilac);
}

.page-home .play__cards {
  margin-top: clamp(18px, 3vw, 26px);
  display: grid;
  gap: 16px;
}

.page-home .play__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 22px 22px;
  background: linear-gradient(165deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  transition: box-shadow 240ms ease-out, border-color 240ms ease-out, transform 240ms ease-out;
}

.page-home .play__card--long {
  border-top-color: var(--gold);
}

.page-home .play__card:hover,
.page-home .play__card:focus-within {
  border-color: var(--line-gold);
  transform: translateY(-3px);
  box-shadow: 0 20px 42px -28px rgba(232, 180, 87, 0.7);
}

.page-home .play__rounds {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lilac);
}

.page-home .play__time {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(30px, 5vw, 42px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--ivory);
}

.page-home .play__time span {
  margin-left: 6px;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--fog);
}

.page-home .play__line {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fog);
}

.page-home .play__line--note {
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  color: var(--lilac);
}

.page-home .play__figure {
  margin: 0;
}

/* ---------- 客户端 ---------- */

.page-home .client__inner {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-home .client__figure {
  margin: 0;
}

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

.page-home .client__os {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .client__os li {
  padding: 6px 11px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fog);
  background: var(--bg-soft);
  border: 1px solid var(--line);
}

.page-home .client__btn {
  margin-top: 24px;
}

/* ---------- 更新节奏 ---------- */

.page-home .pulse__grid {
  display: grid;
  gap: 18px;
}

.page-home .pulse__card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(22px, 3vw, 30px);
  background: var(--panel);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: border-color 220ms ease-out, background 220ms ease-out;
}

.page-home .pulse__card:hover,
.page-home .pulse__card:focus-visible {
  background: var(--panel-2);
  border-color: var(--line-cyan);
}

.page-home .pulse__kicker {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .pulse__figure {
  font-family: var(--mono);
  font-size: clamp(34px, 5vw, 46px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--ivory);
}

.page-home .pulse__unit {
  font-size: 14px;
  line-height: 1.6;
  color: var(--lilac);
}

.page-home .pulse__text {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fog);
}

.page-home .pulse__go {
  margin-top: auto;
  padding-top: 18px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

/* ---------- 服务联络 ---------- */

.page-home .reach {
  border-top: 1px solid var(--line-soft);
}

.page-home .reach__inner {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-home .reach__lead .lt-btn {
  margin-top: 22px;
}

.page-home .reach__box {
  padding: clamp(22px, 3vw, 32px);
  background: linear-gradient(150deg, var(--panel-2), var(--bg-soft));
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
}

.page-home .reach__box .lt-contact-list {
  margin: 0;
}

.page-home .reach__box .lt-contact-list__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .reach__box .lt-contact-list__row:last-child {
  border-bottom: 0;
}

.page-home .reach__box .lt-contact-list__key {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--lilac);
}

.page-home .reach__box .lt-contact-list__val {
  font-size: 17px;
  line-height: 1.6;
  color: var(--ivory);
  word-break: break-word;
}

.page-home .reach__box .lt-contact-list__val--wrap {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 0.02em;
}

.page-home .reach__legal {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--lilac);
}

/* ---------- 响应式 ---------- */

@media (min-width: 600px) {
  .page-home .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-home .pulse__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .archive__list {
    padding-left: 54px;
  }

  .page-home .archive__list::before {
    content: "";
    position: absolute;
    left: 15px;
    top: 26px;
    bottom: 26px;
    width: 1px;
    background: linear-gradient(180deg, var(--cyan), var(--gold) 62%, var(--gold-dim));
    opacity: 0.6;
  }

  .page-home .archive__item::before {
    content: "";
    position: absolute;
    left: -46px;
    top: 36px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--bg-soft);
    border: 2px solid var(--cyan);
    box-shadow: 0 0 0 4px rgba(53, 230, 210, 0.12);
  }

  .page-home .archive__item--mid::before {
    border-color: var(--gold);
    box-shadow: 0 0 0 4px rgba(232, 180, 87, 0.12);
  }

  .page-home .archive__interlude {
    max-width: 420px;
    margin-left: 54px;
  }

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

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

  .page-home .client__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: center;
  }

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

@media (min-width: 960px) {
  .page-home .home-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

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

  .page-home .archive__card,
  .page-home .play__card,
  .page-home .start__step,
  .page-home .pulse__card {
    transition: none;
  }

  .page-home .archive__card:hover,
  .page-home .archive__card:focus-within,
  .page-home .play__card:hover,
  .page-home .play__card:focus-within {
    transform: none;
  }
}