.page-home {
  --home-line: rgba(20, 69, 111, .42);
  --home-line-soft: rgba(20, 69, 111, .22);
  --home-panel-tint: rgba(14, 46, 79, .45);
  font-family: var(--font-cn);
  font-size: 17px;
  line-height: 1.9;
  background: var(--c-abyss);
  color: var(--c-text);
  overflow-x: clip;
}

.page-home h1,
.page-home h2,
.page-home h3 {
  font-family: var(--font-cn);
  font-weight: 900;
  letter-spacing: -.02em;
}

.page-home p {
  margin: 0;
}

/* ================= 首屏 ================= */
.page-home .hero {
  position: relative;
  padding: 40px 0 56px;
  background-color: var(--c-abyss);
  background-image:
    repeating-linear-gradient(90deg, var(--home-line) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, var(--home-line-soft) 0 1px, transparent 1px 96px);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 82% 8%, rgba(255, 107, 69, .12), transparent 58%);
  pointer-events: none;
}

.page-home .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

/* 左窄栏 */
.page-home .hero-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--c-grid);
  background: linear-gradient(180deg, rgba(14, 46, 79, .92) 0%, rgba(7, 26, 47, .94) 100%);
}

.page-home .side-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--c-mint);
}

.page-home .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 4px rgba(63, 216, 168, .12), 0 0 12px rgba(63, 216, 168, .55);
  animation: home-breathe 2.4s var(--ease) infinite;
}

@keyframes home-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: .42; }
}

.page-home .side-meta {
  color: var(--c-fog);
}

.page-home .side-fig {
  margin: 0;
  border: 1px solid var(--c-grid);
  overflow: hidden;
}

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

.page-home .side-title {
  font-size: 22px;
  line-height: 1.4;
  margin: 0;
  color: var(--c-text);
}

.page-home .side-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-fog);
}

.page-home .side-cta {
  align-self: flex-start;
}

/* 右宽栏 */
.page-home .hero-body {
  position: relative;
}

.page-home .hero-version {
  position: absolute;
  top: -30px;
  right: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(56px, 9vw, 96px);
  line-height: .9;
  letter-spacing: .04em;
  color: rgba(255, 107, 69, .18);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.page-home .hero-kicker {
  position: relative;
  z-index: 1;
  color: var(--c-coral);
  margin-bottom: 14px;
}

.page-home .hero-title {
  position: relative;
  z-index: 1;
  font-size: clamp(38px, 8.4vw, 72px);
  line-height: 1.05;
  margin: 0 0 20px;
  color: var(--c-text);
  text-wrap: balance;
}

.page-home .hero-lede {
  position: relative;
  z-index: 1;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.9;
  color: var(--c-fog);
  margin: 0 0 26px;
}

.page-home .hero-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.page-home .hero-fig {
  position: relative;
  z-index: 1;
  margin: 0;
  border: 1px solid var(--c-grid);
  overflow: hidden;
}

.page-home .hero-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ================= 通用节标题 ================= */
.page-home .sec-head {
  max-width: 70ch;
  margin-bottom: 36px;
}

.page-home .sec-kicker {
  color: var(--c-coral);
  margin-bottom: 10px;
}

.page-home .sec-head h2 {
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.14;
  margin: 0 0 14px;
}

.page-home .sec-lede {
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-fog);
}

/* ================= 五步流程 ================= */
.page-home .steps {
  padding: 64px 0 72px;
  background: var(--c-abyss);
  border-top: 1px solid var(--home-line-soft);
}

.page-home .steps-fig {
  margin: 0 0 28px;
  border: 1px solid var(--c-grid);
  overflow: hidden;
}

.page-home .steps-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .step-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px 22px;
  border: 1px solid var(--c-grid);
  background: var(--c-panel);
  transition: transform .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-home .step-num {
  font-size: 26px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--c-coral-soft);
}

.page-home .step-card h3 {
  font-size: 20px;
  line-height: 1.35;
  margin: 0;
  color: var(--c-text);
}

.page-home .step-card p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-fog);
}

/* ================= V3 变化（奶油纸） ================= */
.page-home .changed {
  background: var(--c-paper);
  color: var(--c-ink);
  padding: 84px 0;
  margin-top: -1px;
  clip-path: polygon(0 28px, 100% 0, 100% 100%, 0 calc(100% - 28px));
}

.page-home .changed .sec-kicker {
  color: #B8451F;
}

.page-home .changed .sec-head h2 {
  color: var(--c-ink);
}

.page-home .changed .sec-lede {
  color: #4A3C31;
}

.page-home .change-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

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

.page-home .change-card {
  position: relative;
  padding: 20px 22px 22px;
  border: 1px solid rgba(27, 20, 16, .2);
  background: rgba(255, 255, 255, .5);
}

.page-home .change-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--c-coral);
}

.page-home .change-num {
  display: block;
  font-size: 12px;
  letter-spacing: .18em;
  color: #8A6B58;
  margin-bottom: 8px;
}

.page-home .change-card h3 {
  font-size: 20px;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--c-ink);
}

.page-home .change-card p {
  font-size: 15.5px;
  line-height: 1.85;
  color: #3C3026;
}

.page-home .change-fig {
  margin: 0;
  border: 1px solid rgba(27, 20, 16, .22);
  overflow: hidden;
}

.page-home .change-fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

/* ================= 更新记录 ================= */
.page-home .latest {
  padding: 72px 0;
  background: var(--c-abyss);
}

.page-home .log {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-grid);
}

.page-home .log li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 18px 0;
  border-bottom: 1px solid var(--home-line-soft);
}

.page-home .log-time {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-coral-soft);
}

.page-home .log-cat {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-mint);
}

.page-home .log li p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--c-fog);
}

.page-home .latest-more {
  margin-top: 28px;
}

/* ================= 路径 ================= */
.page-home .routes {
  padding: 64px 0 88px;
  background: var(--c-abyss);
  border-top: 1px solid var(--home-line-soft);
}

.page-home .route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .route-item a {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--c-grid);
  background: var(--home-panel-tint);
  text-decoration: none;
  color: inherit;
  transition: transform .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-home .route-num {
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--c-fog);
}

.page-home .route-name {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.4;
  color: var(--c-text);
}

.page-home .route-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-fog);
}

.page-home .route-arrow {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-coral);
  transition: transform .2s var(--ease);
}

/* ================= 悬停 / 焦点 ================= */
.page-home .step-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-coral);
}

.page-home a:focus-visible {
  outline: 2px solid var(--c-coral);
  outline-offset: 2px;
}

.page-home .route-item a:hover {
  transform: translateY(-2px);
  border-color: var(--c-coral);
  background: rgba(14, 46, 79, .78);
}

.page-home .route-item a:hover .route-arrow {
  transform: translateX(4px);
}

/* ================= 响应式 ================= */
@media (min-width: 700px) {
  .page-home .hero {
    padding: 56px 0 72px;
  }

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

  .page-home .log li {
    grid-template-columns: 110px 130px minmax(0, 1fr);
    gap: 0 20px;
    align-items: baseline;
  }

  .page-home .route-item a {
    grid-template-columns: 48px minmax(0, 1fr) 32px;
    align-items: center;
    gap: 6px 20px;
  }

  .page-home .route-num {
    grid-row: span 2;
    align-self: start;
    padding-top: 4px;
  }

  .page-home .route-desc {
    grid-column: 2;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 40px;
    align-items: start;
  }

  .page-home .hero-side {
    position: sticky;
    top: 96px;
  }

  .page-home .change-body {
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-home .step-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-home .hero {
    padding: 72px 0 88px;
  }
}

@media (min-width: 1100px) {
  .page-home .route-item a {
    grid-template-columns: 56px 280px minmax(0, 1fr) 32px;
    align-items: center;
    gap: 20px;
  }

  .page-home .route-num {
    grid-row: auto;
    align-self: center;
    padding-top: 0;
  }

  .page-home .route-desc {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .status-dot {
    animation: none;
  }

  .page-home .step-card,
  .page-home .route-item a,
  .page-home .route-arrow {
    transition: border-color .2s var(--ease), background-color .2s var(--ease), color .2s var(--ease);
  }

  .page-home .step-card:hover,
  .page-home .route-item a:hover,
  .page-home .route-item a:hover .route-arrow {
    transform: none;
  }
}