.page-home {
  --home-body: #C7CFE3;
  --home-panel: rgba(22, 36, 74, 0.62);
  --home-panel-strong: rgba(22, 36, 74, 0.94);

  display: block;
  overflow-x: hidden;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink) 42%, var(--deep) 100%);
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  padding: clamp(18px, 3.4vw, 42px) 0 clamp(44px, 7vw, 92px);
  isolation: isolate;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-home .hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 62%;
  filter: saturate(0.78) brightness(0.52);
}

.page-home .hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(15, 26, 54, 0.96) 0%, rgba(15, 26, 54, 0.52) 58%, rgba(7, 12, 28, 0.86) 100%),
    linear-gradient(180deg, rgba(7, 12, 28, 0.5) 0%, rgba(15, 26, 54, 0.72) 62%, var(--ink) 100%);
}

.page-home .hero__frame {
  position: relative;
  max-width: 1240px;
  margin: 0 clamp(14px, 3.6vw, 40px);
  padding: clamp(24px, 4vw, 52px);
  background: linear-gradient(158deg, rgba(22, 36, 74, 0.78) 0%, rgba(7, 12, 28, 0.88) 100%);
  clip-path: polygon(0 0, calc(100% - 32px) 0, 100% 32px, 100% 100%, 32px 100%, 0 calc(100% - 32px));
}

.page-home .hero__frame::before,
.page-home .hero__frame::after {
  content: "";
  position: absolute;
  width: 42px;
  height: 42px;
  pointer-events: none;
  opacity: 0.6;
}

.page-home .hero__frame::before {
  top: 14px;
  left: 14px;
  border-top: 2px solid var(--neon);
  border-left: 2px solid var(--neon);
}

.page-home .hero__frame::after {
  right: 14px;
  bottom: 14px;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
}

@media (min-width: 1320px) {
  .page-home .hero__frame {
    margin: 0 auto;
  }
}

.page-home .hero__crumbs {
  position: relative;
  z-index: 2;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-home .hero__crumbs .crumbs__list {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-home .hero__crumbs .crumbs__list li[aria-current="page"] {
  color: var(--neon);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4.4vw, 52px);
  align-items: start;
}

.page-home .hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--neon);
  margin: 0;
}

.page-home .hero__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 5.8vw, 54px);
  line-height: 1.16;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 18px 0 0;
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--orange);
}

.page-home .hero__sub {
  margin: 20px 0 0;
  max-width: 32em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--home-body);
}

.page-home .hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-home .quick {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 13px 22px;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line);
  background: linear-gradient(var(--ink-2), var(--ink-2)) left center / 0% 100% no-repeat;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-home .quick:hover,
.page-home .quick:focus-visible {
  background-size: 100% 100%;
  background-color: var(--orange);
  border-color: var(--orange);
  color: var(--deep);
}

.page-home .quick--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--deep);
  font-weight: 600;
}

.page-home .quick--primary:hover,
.page-home .quick--primary:focus-visible {
  background: var(--orange-soft);
  border-color: var(--orange-soft);
  color: var(--deep);
}

.page-home .hero__cards {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .hang-card {
  position: relative;
  padding: 22px 22px 24px;
  background: linear-gradient(150deg, var(--home-panel-strong) 0%, rgba(15, 26, 54, 0.94) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .hang-card:hover {
  border-color: var(--neon);
  transform: translateY(-4px);
}

.page-home .hang-card__tag {
  margin: 0;
  color: var(--neon);
  font-size: 12px;
}

.page-home .hang-card h2 {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 12px 0 8px;
}

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

.page-home .hang-card a {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .hang-card a:hover,
.page-home .hang-card a:focus-visible {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(300px, 0.82fr);
  }

  .page-home .hero__cards {
    padding-top: 34px;
  }

  .page-home .hang-card--b {
    margin-left: 26px;
    margin-top: 4px;
  }
}

/* ---------- 章节通用 ---------- */

.page-home .chapter {
  position: relative;
  padding: clamp(56px, 8.5vw, 108px) 0;
}

.page-home .chapter--alt {
  background: linear-gradient(180deg, rgba(22, 36, 74, 0) 0%, rgba(22, 36, 74, 0.55) 22%, rgba(22, 36, 74, 0.55) 78%, rgba(22, 36, 74, 0) 100%);
}

.page-home .chapter__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.6vw, 32px);
}

.page-home .chapter__num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--orange);
  padding: 4px 0;
}

.page-home .chapter__rule {
  display: block;
  width: 148px;
  height: 7px;
  margin: 6px 0 26px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--orange-soft) 66%, rgba(255, 180, 115, 0) 100%);
  transform: skewY(-6deg);
  transform-origin: left center;
}

.page-home .chapter__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.34;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 0 0 18px;
}

.page-home .chapter__lead {
  margin: 0;
  max-width: 40em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--home-body);
}

.page-home .chapter__link {
  display: inline-block;
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .chapter__link:hover,
.page-home .chapter__link:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-home .chapter__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 44px);
}

@media (min-width: 860px) {
  .page-home .chapter__inner {
    grid-template-columns: 92px minmax(0, 1fr);
  }

  .page-home .chapter__rail {
    position: sticky;
    top: 128px;
    align-self: start;
  }

  .page-home .chapter__split {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-home .chapter__split--rev {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }
}

/* ---------- 01 苹果下载 ---------- */

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

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

.page-home .step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px 18px 20px;
  background: var(--home-panel);
  border-left: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .step:hover {
  border-left-color: var(--neon);
  background: var(--home-panel-strong);
}

.page-home .step__no {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--neon);
  padding-top: 3px;
  white-space: nowrap;
}

.page-home .step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-home .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--home-body);
}

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

.page-home .shot .media-frame {
  border: 1px solid var(--line);
  overflow: hidden;
}

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

.page-home .shot__cap {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-home .shot--wide .media-frame {
  border-color: var(--line);
}

/* ---------- 02 导出 ---------- */

.page-home .facts {
  display: grid;
  gap: 2px;
}

.page-home .fact {
  padding: 18px 20px;
  background: rgba(15, 26, 54, 0.72);
  border-left: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease);
}

.page-home .fact:hover {
  border-left-color: var(--orange);
}

.page-home .fact__k {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-home .fact p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--home-body);
}

/* ---------- 03 反馈 ---------- */

.page-home .lanes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(26px, 4vw, 42px);
}

@media (min-width: 760px) {
  .page-home .lanes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .lane {
  padding: 22px 20px 24px;
  background: rgba(15, 26, 54, 0.7);
  border-top: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .lane:hover {
  border-top-color: var(--neon);
  transform: translateY(-3px);
}

.page-home .lane--accent {
  background: linear-gradient(160deg, rgba(43, 74, 150, 0.55) 0%, rgba(15, 26, 54, 0.8) 100%);
}

.page-home .lane h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
}

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

.page-home .lane .mono-index {
  color: var(--neon);
  font-size: 14px;
}

/* ---------- 04 人群 ---------- */

.page-home .who {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  counter-reset: who;
}

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

.page-home .who__item {
  position: relative;
  padding: 24px 22px 26px 26px;
  background: rgba(15, 26, 54, 0.68);
  border-left: 2px solid var(--line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .who__item::before {
  counter-increment: who;
  content: "0" counter(who);
  position: absolute;
  top: 26px;
  right: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-home .who__item:hover {
  border-left-color: var(--orange);
  background: rgba(22, 36, 74, 0.9);
}

.page-home .who__item h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-home .who__item p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--home-body);
  max-width: 30em;
}

.page-home .who__item a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .who__item a:hover,
.page-home .who__item a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ---------- 收束带 ---------- */

.page-home .outro {
  position: relative;
  padding: clamp(58px, 9vw, 108px) 0;
  overflow: hidden;
  isolation: isolate;
}

.page-home .outro__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-home .outro__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-home .outro__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 122, 44, 0.94) 0%, rgba(226, 92, 24, 0.9) 100%);
}

.page-home .outro__inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
  color: var(--deep);
}

.page-home .outro__tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: rgba(7, 12, 28, 0.72);
}

.page-home .outro__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.3;
  letter-spacing: 0.04em;
  margin: 16px 0 0;
  color: var(--deep);
}

.page-home .outro__text {
  margin: 16px 0 0;
  max-width: 30em;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(7, 12, 28, 0.82);
}

.page-home .outro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-home .outro-btn {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 14px 26px;
  text-decoration: none;
  color: var(--mist);
  background: var(--ink);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .outro-btn:hover,
.page-home .outro-btn:focus-visible {
  background: var(--ink-3);
  color: var(--mist);
}

.page-home .outro-btn--ghost {
  background: transparent;
  color: var(--deep);
  box-shadow: inset 0 0 0 2px var(--deep);
}

.page-home .outro-btn--ghost:hover,
.page-home .outro-btn--ghost:focus-visible {
  background: var(--deep);
  color: var(--orange);
}

/* ---------- 窄屏兜底 ---------- */

@media (max-width: 520px) {
  .page-home .hero__frame {
    padding: 22px 18px 26px;
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  }

  .page-home .hero__frame::before,
  .page-home .hero__frame::after {
    width: 28px;
    height: 28px;
  }

  .page-home .quick {
    flex: 1 1 100%;
    text-align: center;
  }

  .page-home .step {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .page-home .step__no {
    padding-top: 0;
  }

  .page-home .who__item {
    padding-right: 58px;
  }
}
<<<END>>>