.page-home {
  --home-step-max: clamp(96px, 18vw, 180px);
  --home-frame-clip: polygon(0 0, 100% 0, 100% 82%, 92% 100%, 0 100%);
}

.page-home .crumbs {
  padding-inline: var(--gutter);
  padding-top: 1.25rem;
}

/* ============ 首屏 ============ */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(3rem, 7vw, 5rem);
}

.page-home .hero__grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }
}

.page-home .hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 1.5rem;
  padding: .4rem .75rem;
  font-size: .75rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--slate);
  border: var(--edge);
  border-radius: var(--radius);
  background: rgba(16, 43, 72, .55);
}

.page-home .hero__title {
  position: relative;
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-weight: 900;
  line-height: .94;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .hero__step {
  display: block;
  margin-bottom: .4rem;
  font-family: var(--font-display);
  font-size: var(--home-step-max);
  font-weight: 900;
  line-height: .8;
  letter-spacing: -0.04em;
  color: rgba(56, 242, 208, 0.14);
  -webkit-text-stroke: 1.5px var(--cyan);
  text-stroke: 1.5px var(--cyan);
}

.page-home .hero__title-text {
  display: block;
  font-size: clamp(32px, 4.6vw, 54px);
  font-weight: 900;
  color: var(--paper);
}

.page-home .hero__lede {
  max-width: 44ch;
  margin: 0 0 1.75rem;
  font-size: clamp(15px, 1.35vw, 16.5px);
  line-height: 1.78;
  color: var(--paper);
  opacity: .86;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1.75rem;
}

.page-home .hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.75rem;
  margin: 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line-600);
  font-size: .72rem;
  letter-spacing: .07em;
  color: var(--slate);
}

.page-home .hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

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

.page-home .hero__frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: var(--edge);
  background: var(--ink-900);
  border-radius: var(--radius);
  clip-path: var(--home-frame-clip);
  box-shadow: var(--shadow-soft);
}

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

.page-home .hero__caption {
  margin: .75rem 0 0;
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--slate);
  text-align: right;
}

/* ============ 章节节奏 ============ */
.page-home .section {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.page-home .trail,
.page-home .tablet,
.page-home .changes,
.page-home .tools {
  border-top: 1px solid rgba(40, 71, 100, .55);
}

/* ============ 三段路径 ============ */
.page-home .trail__grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

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

.page-home .trail__panel {
  padding: 1.5rem 1.35rem 1.6rem;
}

.page-home .trail__panel--feature {
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(56, 242, 208, .09) 0%, rgba(16, 43, 72, .65) 100%);
}

.page-home .trail__link {
  display: inline-block;
  margin-top: .85rem;
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-home .trail__link:hover,
.page-home .trail__link:focus-visible {
  border-color: var(--cyan);
}

.page-home .trail__replay {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
  border: var(--edge);
  border-radius: var(--radius);
  background: var(--ink-900);
}

@media (min-width: 760px) {
  .page-home .trail__replay {
    grid-template-columns: 1.25fr 1fr;
    align-items: center;
    gap: 2rem;
  }
}

.page-home .trail__replay-img img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-600);
  border-radius: var(--radius);
}

.page-home .trail__replay-text p.mono {
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--cyan-100);
  margin: 0;
}

.page-home .trail__replay-text h3 {
  margin: .5rem 0 .75rem;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 900;
  color: var(--paper);
  line-height: 1.2;
}

.page-home .trail__replay-text p:not(.mono) {
  margin: 0 0 1.1rem;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--slate);
}

/* ============ 平板视图 ============ */
.page-home .tablet__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 900px) {
  .page-home .tablet__grid {
    grid-template-columns: 1fr 1.08fr;
    gap: 3rem;
  }
}

.page-home .tablet__title {
  margin: .5rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 900;
  line-height: 1.14;
  color: var(--paper);
}

.page-home .tablet__text > p:not(.section__index) {
  max-width: 48ch;
  margin: 0 0 1.5rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .tablet__steps {
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-home .tablet__steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .9rem;
  align-items: baseline;
  padding: .85rem 1rem;
  background: rgba(10, 27, 48, .65);
  border: 1px solid var(--line-600);
  border-radius: var(--radius);
  color: var(--paper);
  font-size: .9375rem;
  line-height: 1.6;
}

.page-home .tablet__steps .mono {
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

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

.page-home .tablet__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--edge);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.page-home .tablet__caption {
  display: flex;
  align-items: center;
  gap: .45rem;
  margin: .75rem 0 0;
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--slate);
}

/* ============ 收藏与关注变更 ============ */
.page-home .changes__layout {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .page-home .changes__layout {
    grid-template-columns: 1.05fr 1fr;
    gap: 2.5rem;
    align-items: start;
  }
}

.page-home .changes__cards {
  display: grid;
  gap: 1rem;
}

@media (min-width: 600px) {
  .page-home .changes__cards {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-home .changes__cards > .changes__card:first-child {
    margin-top: 14px;
  }
}

.page-home .changes__card {
  padding: 1.25rem 1.25rem 1.5rem;
  border: 1px solid var(--line-600);
  border-radius: var(--radius);
  background: var(--ink-900);
}

.page-home .changes__card--new {
  border-color: var(--orange);
  background: linear-gradient(180deg, rgba(255, 122, 26, .09) 0%, var(--ink-900) 100%);
}

.page-home .changes__card-label {
  display: flex;
  align-items: center;
  gap: .4rem;
  margin: 0 0 .8rem;
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .changes__card--new .changes__card-label {
  color: var(--orange-100);
}

.page-home .changes__card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .65rem;
}

.page-home .changes__card li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .875rem;
  line-height: 1.62;
  color: var(--paper);
}

.page-home .changes__card li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--slate);
}

.page-home .changes__card--new li::before {
  content: "→";
  color: var(--orange);
}

.page-home .changes__visual {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.page-home .changes__visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--edge);
  border-radius: var(--radius);
}

.page-home .changes__link {
  align-self: flex-start;
  padding: .35rem 0;
  font-size: .73rem;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
}

/* ============ 2025 版资源 ============ */
.page-home .download-brief__grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 900px) {
  .page-home .download-brief__grid {
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
    align-items: start;
  }
}

.page-home .download-brief__title {
  margin: .5rem 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.2vw, 42px);
  font-weight: 900;
  line-height: 1.1;
  color: var(--paper);
}

.page-home .download-brief__text > p:not(.section__index) {
  max-width: 48ch;
  margin: 0 0 1.75rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .download-brief__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-600);
}

.page-home .download-brief__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line-600);
  align-items: start;
}

.page-home .download-brief__list .mono {
  padding-top: .18rem;
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-home .download-brief__list strong {
  display: block;
  margin-bottom: .22rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .download-brief__list p {
  margin: 0;
  font-size: .875rem;
  line-height: 1.65;
  color: var(--slate);
}

/* ============ 站内工具与咨询 ============ */
.page-home .tools__grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 820px) {
  .page-home .tools__grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: stretch;
  }

  .page-home .tools__card:nth-child(2) {
    transform: translateY(18px);
  }
}

.page-home .tools__card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  border: var(--edge);
  border-radius: var(--radius);
  background: var(--ink-900);
}

.page-home .tools__card:nth-child(2) {
  background: var(--ink-800);
}

.page-home .tools__tag {
  display: flex;
  align-items: center;
  gap: .4rem;
  margin: 0 0 .85rem;
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-home .tools__card h3 {
  margin: 0 0 .6rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--paper);
}

.page-home .tools__card p {
  margin: 0 0 1.25rem;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--slate);
}

.page-home .tools__card .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ============ 回到第一步 ============ */
.page-home .back-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .55rem .85rem;
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--cyan-100);
  text-decoration: none;
  background: rgba(6, 18, 34, .92);
  border: 1px solid var(--line-600);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px -12px rgba(2, 8, 20, .95);
}

.page-home .back-top:hover,
.page-home .back-top:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

@media (max-width: 480px) {
  .page-home .back-top {
    right: .75rem;
    bottom: .75rem;
    padding: .5rem .7rem;
  }

  .page-home .hero__meta {
    gap: .5rem 1rem;
  }
}
<<<END>>>