.page-home {
  --rail-w: 300px;
  --section-y: clamp(56px, 8vw, 104px);
  --panel-pad: clamp(18px, 3vw, 36px);
  background: var(--void);
  color: var(--mist);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-home .breadcrumb {
  margin-bottom: 18px;
  font-size: 12px;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(20px, 3.5vw, 44px));
  padding-bottom: clamp(40px, 6vw, 76px);
  overflow: hidden;
}

.page-home .hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: clamp(120px, 18vw, 220px);
  pointer-events: none;
  opacity: 0.45;
}

.page-home .hero-wave path {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.4;
  opacity: 0.5;
}

.page-home .hero-wave circle {
  fill: var(--orange);
}

.page-home .hero-frame {
  position: relative;
  padding: var(--panel-pad);
  border: 1px solid var(--line);
  background:
    linear-gradient(158deg, rgba(16, 27, 45, 0.9), rgba(7, 11, 20, 0.96) 62%),
    var(--void);
  clip-path: var(--cut-shape);
}

.page-home .hero-frame::before,
.page-home .hero-frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid var(--cyan);
  opacity: 0.6;
}

.page-home .hero-frame::before {
  top: 9px;
  left: 9px;
  border-right: 0;
  border-bottom: 0;
}

.page-home .hero-frame::after {
  right: 9px;
  bottom: 9px;
  border-left: 0;
  border-top: 0;
}

.page-home .hero-grid {
  display: grid;
  gap: clamp(26px, 3.4vw, 44px);
}

.page-home .hero-kicker {
  margin: 0 0 16px;
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.22em;
}

.page-home .hero h1 {
  margin: 0 0 18px;
  max-width: 15em;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-home .hero-lede {
  max-width: 34em;
  margin: 0;
  color: var(--cool);
  font-size: clamp(15px, 1.7vw, 17px);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 32px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-home .hero-stat dt {
  margin: 0 0 4px;
  color: var(--cool);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-home .hero-stat dd {
  margin: 0;
  color: var(--cool);
  font-size: 13px;
}

.page-home .hero-stat .num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 28px);
  color: var(--mist);
  line-height: 1.2;
}

.page-home .hero-rail {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--glass);
  clip-path: var(--cut-shape-sm);
}

.page-home .rail-media {
  margin: 0;
}

.page-home .rail-track {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 0 0 0 4px;
  display: grid;
  gap: 16px;
}

.page-home .rail-track::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--line));
}

.page-home .rail-track li {
  position: relative;
  padding-left: 30px;
}

.page-home .rail-track li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.62em;
  width: 11px;
  height: 11px;
  border: 1px solid var(--cyan);
  background: var(--void);
  transform: rotate(45deg);
}

.page-home .rail-track a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-home .rail-track .mono {
  color: var(--cool);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-home .rail-track a:hover,
.page-home .rail-track a:focus-visible {
  color: var(--cyan);
}

/* ---------- 通用区块 ---------- */

.page-home .ph-section {
  position: relative;
  padding-block: var(--section-y);
}

.page-home .ph-section--alt {
  background: linear-gradient(180deg, transparent, rgba(14, 22, 38, 0.86) 16%, rgba(14, 22, 38, 0.86) 84%, transparent);
  border-block: 1px solid var(--line);
}

.page-home .ph-section--tight {
  padding-block: clamp(40px, 5vw, 72px);
}

.page-home .ph-head {
  max-width: 720px;
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-home .ph-kicker {
  margin: 0 0 14px;
  color: var(--orange);
  font-size: 11px;
  letter-spacing: 0.22em;
}

.page-home .ph-lede {
  margin: 14px 0 0;
  color: var(--cool);
}

.page-home .ph-text {
  margin: 0 0 20px;
  max-width: 40em;
  color: var(--cool);
  font-size: 15px;
}

.page-home .ph-figure {
  margin: 0 0 clamp(24px, 3.5vw, 36px);
}

/* ---------- 五条主线 ---------- */

.page-home .lines-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .line-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(16, 27, 45, 0.9), rgba(14, 22, 38, 0.55));
  clip-path: var(--cut-shape-sm);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-home .line-card:hover,
.page-home .line-card:focus-within {
  border-color: var(--cyan-deep);
  background: linear-gradient(158deg, rgba(26, 110, 117, 0.22), rgba(14, 22, 38, 0.7));
}

.page-home .line-card--alert {
  background: linear-gradient(158deg, rgba(184, 91, 34, 0.2), rgba(14, 22, 38, 0.72));
  border-color: rgba(255, 138, 61, 0.34);
}

.page-home .line-index {
  margin: 0;
  color: var(--cool);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-home .line-card--alert .line-index {
  color: var(--orange);
}

.page-home .line-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--mist);
}

.page-home .line-card p:not(.line-index) {
  margin: 0;
  color: var(--cool);
  font-size: 14.5px;
  line-height: 1.72;
}

.page-home .line-link {
  margin-top: auto;
  padding-top: 6px;
  color: var(--cyan);
  font-size: 13.5px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
  transition: border-color 0.25s var(--ease);
}

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

/* ---------- 首次访问与收藏 ---------- */

.page-home .collect {
  display: grid;
  gap: clamp(26px, 3.6vw, 48px);
}

.page-home .collect-steps {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .collect-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  color: var(--cool);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-home .collect-steps .mono {
  color: var(--orange);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding-top: 3px;
}

.page-home .collect-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .collect-media {
  margin: 0;
}

/* ---------- 版本与信任 ---------- */

.page-home .rev {
  display: grid;
  gap: clamp(28px, 3.6vw, 48px);
}

.page-home .rev-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-home .rev-list li {
  display: grid;
  gap: 6px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--line);
}

.page-home .rev-time {
  color: var(--orange);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-home .rev-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  color: var(--mist);
  line-height: 1.45;
}

.page-home .rev-list p {
  margin: 0;
  color: var(--cool);
  font-size: 14px;
  line-height: 1.7;
}

.page-home .rev-more {
  display: inline-block;
  margin-top: 22px;
  color: var(--cyan);
  font-size: 13.5px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}

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

.page-home .rev-side {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-home .rev-side .media {
  margin: 0;
}

.page-home .trust-card {
  padding: clamp(16px, 2.4vw, 24px);
  border: 1px solid var(--line);
  background: var(--glass);
  clip-path: var(--cut-shape-sm);
}

.page-home .trust-title {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.2em;
}

.page-home .trust-list {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-home .trust-list > div {
  display: grid;
  gap: 2px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(34, 48, 68, 0.75);
}

.page-home .trust-list > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-home .trust-list dt {
  color: var(--cool);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-home .trust-list dd {
  margin: 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.62;
}

/* ---------- 排查与人工支持 ---------- */

.page-home .support {
  display: grid;
  gap: 16px;
}

.page-home .support-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(45, 226, 230, 0.09), transparent 58%),
    rgba(14, 22, 38, 0.72);
  clip-path: var(--cut-shape);
}

.page-home .support-card--alt {
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(255, 138, 61, 0.1), transparent 58%),
    rgba(14, 22, 38, 0.72);
}

.page-home .support-kicker {
  margin: 0;
  color: var(--cool);
  font-size: 11px;
  letter-spacing: 0.2em;
}

.page-home .support-card h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.8vw, 27px);
  font-weight: 700;
  line-height: 1.34;
  color: var(--mist);
}

.page-home .support-card .ph-text {
  margin: 0 0 8px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-home .lines-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .rev-list li {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 16px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-home .collect {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-home .rev {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

@media (min-width: 960px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1fr) var(--rail-w);
    align-items: start;
  }

  .page-home .hero-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
}

@media (min-width: 1020px) {
  .page-home .lines-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .line-card:first-child {
    grid-column: span 2;
  }
}

@media (max-width: 520px) {
  .page-home .hero-stats {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .page-home .hero-actions .btn,
  .page-home .collect-actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-home .collect-steps li {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .line-card,
  .page-home .line-link,
  .page-home .rev-more,
  .page-home .rail-track a {
    transition: none;
  }
}
<<<END>>>