.page-home {
  display: block;
  background: var(--ink);
}

/* ---------- 01 首屏字墙 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding: 44px 0 40px;
  min-height: 74vh;
  display: flex;
  align-items: center;
}

.page-home .hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  filter: grayscale(.3) contrast(1.05);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(120% 80% at 82% 10%, rgba(0, 232, 200, .14), transparent 58%),
    linear-gradient(180deg, rgba(6, 18, 15, .58) 0%, rgba(11, 31, 26, .9) 58%, var(--ink) 100%);
  pointer-events: none;
}

.page-home .hero-mesh {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(30, 74, 63, .6) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, rgba(30, 74, 63, .45) 0 1px, transparent 1px 76px);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 76%);
}

.page-home .hero-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: end;
}

.page-home .hero-context {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-home .hero-dot {
  width: 7px;
  height: 7px;
  background: var(--flame);
  display: inline-block;
  flex: none;
}

.page-home .hero-title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(46px, 13.5vw, 126px);
  line-height: .96;
  letter-spacing: -.03em;
  color: var(--paper);
}

.page-home .hero-line {
  display: block;
}

.page-home .hero-line--flame {
  color: var(--flame);
}

.page-home .hero-short {
  margin: 22px 0 0;
  font-size: clamp(17px, 4.2vw, 22px);
  font-weight: 700;
  color: var(--cyan-soft);
  letter-spacing: .02em;
}

.page-home .hero-text {
  margin: 12px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .hero-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero-vert {
  display: none;
  color: var(--rule);
  align-self: end;
  justify-self: end;
  margin: 0;
}

/* ---------- 栏目标题带微调 ---------- */
.page-home .chapter-band {
  margin-bottom: 26px;
}

.page-home .lead {
  margin: 0 0 26px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 本页顺序条 ---------- */
.page-home .rail-strip {
  position: static;
  width: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  padding: 14px var(--pad-x);
  background: var(--pit);
  border-bottom: 1px solid var(--rule);
  margin: 0;
}

.page-home .rail-title {
  margin: 0;
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--muted);
}

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

.page-home .rail-link {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-home .rail-link:hover,
.page-home .rail-link[data-active] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-home .rail-num {
  font-family: var(--mono);
  color: var(--rule);
  margin-right: 6px;
}

.page-home .rail-link:hover .rail-num,
.page-home .rail-link[data-active] .rail-num {
  color: var(--flame);
}

/* ---------- 02 三步路径 ---------- */
.page-home .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .step-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 18px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 2px;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-home .step-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 42px;
  height: 3px;
  background: var(--cyan);
}

.page-home .step-card:hover {
  border-color: var(--cyan);
  background: var(--pit);
}

.page-home .step-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-home .step-num {
  font-family: var(--mono);
  font-size: 34px;
  line-height: 1;
  color: var(--rule);
  transition: color .18s var(--ease);
}

.page-home .step-card:hover .step-num {
  color: var(--cyan);
}

.page-home .step-title {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--paper);
}

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

.page-home .step-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.page-home .step-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-home .step-link:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 03 数据看板 ---------- */
.page-home .board-sec {
  background: linear-gradient(180deg, var(--ink) 0%, var(--pit) 100%);
}

.page-home .board {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}

.page-home .stat {
  padding: 20px 18px 22px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-home .stat-num {
  display: inline-block;
  font-family: var(--mono);
  font-size: clamp(44px, 12vw, 76px);
  line-height: 1;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -.02em;
  transition: transform .18s var(--ease), color .18s var(--ease);
}

.page-home .stat-unit {
  font-family: var(--mono);
  font-size: clamp(15px, 3.4vw, 20px);
  color: var(--cyan-soft);
  margin-left: 8px;
}

.page-home .stat:hover .stat-num {
  transform: translateY(-2px);
  color: var(--flame);
}

.page-home .stat-label {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 30ch;
}

.page-home .checks {
  margin-top: 28px;
  padding: 20px 18px;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.page-home .checks-title {
  margin: 0 0 14px;
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--paper);
}

.page-home .check-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  margin-bottom: 12px;
}

.page-home .check-bar span {
  height: 6px;
  background: var(--cyan);
  display: block;
}

.page-home .check-bar span:nth-child(2) {
  background: var(--cyan-soft);
}

.page-home .check-bar span:nth-child(3) {
  background: var(--flame);
}

.page-home .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.page-home .check-list li {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .04em;
}

.page-home .check-idx {
  font-family: var(--mono);
  color: var(--amber);
  margin-right: 6px;
}

.page-home .board-fine {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 04 呼吸带 ---------- */
.page-home .breath {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--pit);
}

.page-home .breath img {
  display: block;
  width: 100%;
  height: clamp(210px, 42vw, 400px);
  object-fit: cover;
  opacity: .5;
}

.page-home .breath-note {
  position: absolute;
  inset: auto 0 0 0;
  padding: 26px var(--pad-x) 24px;
  background: linear-gradient(180deg, rgba(6, 18, 15, 0) 0%, rgba(6, 18, 15, .93) 70%);
}

.page-home .breath-title {
  margin: 0 0 8px;
  font-size: clamp(20px, 4.4vw, 30px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .breath-sub {
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 05 栏目索引 ---------- */
.page-home .lanmu {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .lanmu-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 2px;
  min-height: 0;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-home .lanmu-card:hover {
  border-color: var(--cyan);
  background: var(--pit);
}

.page-home .lanmu-tag {
  margin: 0;
}

.page-home .lanmu-title {
  margin: 0;
  font-size: clamp(18px, 4.6vw, 23px);
  font-weight: 800;
  line-height: 1.36;
  letter-spacing: -.01em;
  color: var(--paper);
  transition: color .18s var(--ease);
}

.page-home .lanmu-card:hover .lanmu-title {
  color: var(--cyan-soft);
}

.page-home .lanmu-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .lanmu-link {
  margin-top: auto;
  align-self: flex-start;
  padding-top: 8px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-home .lanmu-link:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-home .lanmu-card--media {
  flex-direction: column;
  gap: 14px;
}

.page-home .lanmu-media {
  border: 1px solid var(--rule);
  border-radius: 2px;
  overflow: hidden;
  background: var(--pit);
}

.page-home .lanmu-media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
}

.page-home .lanmu-copy {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.page-home .lanmu-fine {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .lanmu-fine a,
.page-home .about-fine a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  transition: border-color .18s var(--ease);
}

.page-home .lanmu-fine a:hover,
.page-home .about-fine a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 06 站点说明 ---------- */
.page-home .about-note {
  max-width: 62ch;
}

.page-home .about-note p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-home .contact-strip {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-home .field-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.page-home .contact-key {
  flex: none;
  width: 5.5em;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-home .contact-val {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--paper);
  word-break: break-all;
  flex: 1 1 auto;
  min-width: 0;
}

.page-home .copy-btn {
  flex: none;
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: .12em;
  padding: 6px 12px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--rule);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-home .copy-btn:hover {
  border-color: var(--cyan);
  background: rgba(0, 232, 200, .08);
}

.page-home .about-fine {
  margin: 22px 0 0;
  max-width: 68ch;
  font-size: 13px;
  line-height: 1.9;
  color: var(--grey-green, var(--muted));
  color: var(--muted);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 700px) {
  .page-home .hero {
    padding: 72px 0 64px;
    min-height: 82vh;
  }

  .page-home .hero-wrap {
    grid-template-columns: minmax(0, 1fr) 40px;
    gap: 32px;
  }

  .page-home .hero-vert {
    display: block;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 12px;
    letter-spacing: .42em;
    color: var(--rule);
  }

  .page-home .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-home .step-card:nth-child(2) {
    margin-top: 20px;
  }

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

  .page-home .check-list {
    gap: 10px 34px;
  }
}

@media (min-width: 860px) {
  .page-home .lanmu {
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
  }

  .page-home .lanmu > .c3 {
    grid-column: span 3;
  }

  .page-home .lanmu > .c4 {
    grid-column: span 4;
  }

  .page-home .lanmu > .c6 {
    grid-column: span 6;
  }

  .page-home .lanmu > .lift {
    margin-top: 26px;
  }

  .page-home .lanmu-card--media {
    flex-direction: row;
    align-items: stretch;
    gap: 18px;
  }

  .page-home .lanmu-media {
    flex: 0 0 168px;
  }

  .page-home .lanmu-media img {
    height: 100%;
    max-height: none;
  }
}

@media (min-width: 1000px) {
  .page-home .board {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home .board-fine {
    margin-top: 26px;
  }

  .page-home .checks {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: center;
    gap: 12px 32px;
    padding: 22px 24px;
  }

  .page-home .checks-title {
    margin: 0;
  }

  .page-home .check-bar {
    grid-column: 2;
    margin-bottom: 8px;
  }

  .page-home .check-list {
    grid-column: 2;
  }
}
<<<END>>>

.page-home {
  --grey-green: currentColor;
}