.page-home {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-home .topstrip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 16px 0 0;
}

.page-home .topstrip__tz {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cool);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(22px, 4vw, 44px) 0 clamp(34px, 6vw, 72px);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-home .hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(38px, 8.6vw, 88px);
  line-height: .98;
  letter-spacing: .01em;
  font-weight: 700;
}

.page-home .hero__title span {
  display: block;
  color: var(--cyan);
}

.page-home .hero__lead {
  margin: 20px 0 0;
  max-width: 36ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--cool);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  list-style: none;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  color: var(--cool);
}

.page-home .hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1.15;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

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

.page-home .hero__visual::before {
  content: "2607";
  position: absolute;
  top: -8px;
  right: 0;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: clamp(58px, 15vw, 132px);
  line-height: .85;
  letter-spacing: -.05em;
  color: var(--paper);
  opacity: .08;
  pointer-events: none;
}

.page-home .hero__media {
  margin: 0;
  position: relative;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), calc(100% - 46px) 100%, 0 100%);
  background: var(--void);
}

.page-home .hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: saturate(.8) contrast(1.08);
}

.page-home .hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(115deg, rgba(5, 16, 13, .55) 0 2px, rgba(5, 16, 13, 0) 2px 14px),
    linear-gradient(180deg, rgba(5, 16, 13, .15) 0%, rgba(11, 26, 22, .9) 100%);
}

.page-home .pathboard {
  position: relative;
  z-index: 2;
  display: block;
  margin: -30px 0 0 auto;
  width: min(100%, 360px);
  padding: 16px 18px 18px;
  background: var(--void);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-home .pathboard:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-home .pathboard__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

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

.page-home .pb-track {
  stroke: rgba(169, 182, 177, .3);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
}

.page-home .pb-trace {
  stroke: var(--cyan);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: .45;
  transition: opacity .28s var(--ease), filter .28s var(--ease);
}

.page-home .pathboard:hover .pb-trace,
.page-home .pathboard:focus-visible .pb-trace {
  opacity: 1;
  filter: drop-shadow(0 0 6px rgba(63, 240, 196, .85));
}

.page-home .pb-node--start { fill: var(--cyan); }
.page-home .pb-node--end { fill: var(--orange); }

.page-home .pathboard__steps {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
  font-size: 13px;
  color: var(--paper);
  line-height: 1.5;
}

.page-home .pathboard__i {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
  margin-right: 8px;
}

/* ---------- 章节通用 ---------- */
.page-home .chapter {
  padding: clamp(44px, 8vw, 88px) 0 0;
}

.page-home .chapter--last {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-home .chapter__head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-home .chapter__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: .1em;
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 7px 8px;
  font-variant-numeric: tabular-nums;
}

.page-home .chapter__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 4.6vw, 44px);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-home .chapter__lead {
  margin: 12px 0 0;
  max-width: 44ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--cool);
}

/* ---------- 数据卡 ---------- */
.page-home .metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .metric {
  padding: 22px 20px 20px;
  background: var(--rock);
  border-top: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-home .metric--moss {
  background: var(--moss);
  border-top-color: var(--orange);
}

.page-home .metric__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(38px, 7vw, 58px);
  line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-home .metric__unit {
  font-size: 15px;
  margin-left: 6px;
  color: var(--cool);
}

.page-home .metric__title {
  margin: 14px 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-home .metric__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--cool);
}

/* ---------- 倒计时 ---------- */
.page-home .lockdown {
  position: relative;
  margin-top: clamp(44px, 8vw, 88px);
  padding: clamp(44px, 8vw, 88px) 0;
  overflow: hidden;
  background: var(--void);
}

.page-home .lockdown__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .lockdown__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.65) contrast(1.15);
}

.page-home .lockdown__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, var(--ink) 8%, rgba(11, 26, 22, .72) 58%, rgba(5, 16, 13, .92) 100%);
}

.page-home .lockdown__inner {
  position: relative;
  z-index: 1;
}

.page-home .lockdown__lead {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--cool);
}

.page-home .countdown {
  margin: 26px 0 0;
  max-width: 620px;
}

.page-home .countdown__read {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-home .countdown__num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 8vw, 60px);
  line-height: 1;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}

.page-home .countdown__cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cool);
}

.page-home .countdown__track {
  position: relative;
  height: 14px;
  margin-top: 12px;
  background: var(--rock);
  border: 1px solid var(--line-soft);
}

.page-home .countdown__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 83%;
  background: linear-gradient(90deg, rgba(255, 106, 43, .12), var(--orange));
}

.page-home .countdown__fill::after {
  content: "";
  position: absolute;
  top: -3px;
  right: -1px;
  width: 3px;
  height: 18px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(63, 240, 196, .9);
}

.page-home .countdown__ticks {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    transparent 0,
    transparent calc(10% - 1px),
    rgba(5, 16, 13, .75) calc(10% - 1px),
    rgba(5, 16, 13, .75) 10%
  );
}

.page-home .countdown__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--cool);
}

.page-home .lockdown__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 26px;
}

.page-home .lockdown__hint {
  font-size: 12.5px;
  color: var(--cool);
}

/* ---------- 战报 ---------- */
.page-home .insights {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 34px);
}

.page-home .shot {
  margin: 0;
  position: relative;
  background: var(--void);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

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

.page-home .shot--tall img {
  aspect-ratio: 4 / 5;
  filter: saturate(.7) contrast(1.1);
}

.page-home .shot--wide img {
  aspect-ratio: 16 / 9;
}

.page-home .shot__cap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--cyan);
  background: rgba(5, 16, 13, .7);
  padding: 5px 8px;
}

.page-home .chapter__head--tight {
  margin-bottom: 18px;
}

.page-home .cols {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 22px;
}

.page-home .colitem {
  border-top: 1px solid var(--line-soft);
  padding: 14px 0 12px;
}

.page-home .colitem__name {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
}

.page-home .colitem__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-home .colitem__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cool);
}

.page-home .insights__foot {
  margin: 18px 0 0;
}

/* ---------- 使用指南 ---------- */
.page-home .guide {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 4vw, 32px);
  align-items: start;
}

.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .step {
  padding: 18px 16px 16px;
  background: var(--moss);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-home .step__idx {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-home .step__title {
  margin: 9px 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  color: var(--paper);
}

.page-home .step__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--cool);
}

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

.page-home .guide__card {
  background: var(--rock);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-home .guide__cardbody {
  padding: 18px;
}

.page-home .guide__cardtitle {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper);
}

.page-home .guide__cardtext {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--cool);
}

/* ---------- 问答 ---------- */
.page-home .qa {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
}

.page-home .qa__intro .chapter__title {
  margin-top: 12px;
}

.page-home .qacontact {
  margin-top: 24px;
  padding: 18px;
  background: var(--moss);
  border-left: 2px solid var(--orange);
}

.page-home .qacontact__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--paper);
}

.page-home .qacontact__line {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--lime);
  word-break: break-all;
}

.page-home .qacontact__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--cool);
}

.page-home .qacontact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

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

.page-home .fold:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

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

.page-home .fold summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-home .fold[open] summary::after {
  content: "−";
  color: var(--orange);
}

.page-home .fold__body {
  padding: 0 0 18px;
}

.page-home .fold__body p {
  margin: 0;
  max-width: 52ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--cool);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .cols {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 760px) {
  .page-home .metrics {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 960px) {
  .page-home .hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(30px, 4vw, 56px);
  }

  .page-home .hero__visual {
    padding-bottom: 34px;
  }

  .page-home .pathboard {
    position: absolute;
    left: -26px;
    bottom: -22px;
    margin: 0;
    width: min(340px, 92%);
  }

  .page-home .insights {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-home .guide {
    grid-template-columns: 7fr 5fr;
  }

  .page-home .qa {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-home .chapter__head {
    gap: 18px;
  }
}

@media (min-width: 1200px) {
  .page-home .hero__lead {
    font-size: 16.5px;
  }

  .page-home .chapter__lead {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .pb-trace {
    transition: none;
  }

  .page-home .pathboard:hover .pb-trace,
  .page-home .pathboard:focus-visible .pb-trace {
    filter: none;
    opacity: 1;
  }
}
<<<END>>>