.page-home {
  --ph-warm: rgba(226, 112, 58, .20);
  --ph-cool: rgba(51, 220, 198, .16);
  --ph-grid-line: rgba(44, 57, 80, .55);
  background: var(--bg);
}

/* ---------- 首屏：宣言 + 目录 ---------- */
.page-home .ph-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 48px) clamp(46px, 7vw, 92px);
}

.page-home .ph-hero::before {
  content: "";
  position: absolute;
  left: -15%;
  right: -15%;
  top: -32%;
  height: 84%;
  background:
    radial-gradient(46% 62% at 22% 12%, var(--ph-warm), transparent 62%),
    radial-gradient(42% 56% at 76% 26%, var(--ph-cool), transparent 66%);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 0 100%);
  pointer-events: none;
  z-index: 0;
  animation: ph-breathe 7s ease-in-out infinite;
}

.page-home .ph-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--ph-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ph-grid-line) 1px, transparent 1px);
  background-size: 76px 76px;
  opacity: .16;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}

.page-home .ph-hero > .wrap {
  position: relative;
  z-index: 1;
}

@keyframes ph-breathe {
  0%, 100% { opacity: .84; }
  50% { opacity: 1; }
}

.page-home .ph-hero__grid {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-home .ph-hero__title {
  margin: .16em 0 .3em;
  font-size: clamp(34px, 6.4vw, 76px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.02em;
  max-width: 15ch;
}

.page-home .ph-hero__lede {
  max-width: 46ch;
}

/* ---------- 目录列表 ---------- */
.page-home .ph-dock {
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-dock__link {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 10px;
  gap: 14px;
  align-items: start;
  padding: 17px 8px 17px 0;
  border-top: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: background .25s var(--ease), transform .25s var(--ease);
}

.page-home .ph-dock li:last-child .ph-dock__link {
  border-bottom: 1px solid var(--line);
}

.page-home .ph-dock__link:hover {
  background: rgba(51, 220, 198, .05);
  transform: translateX(3px);
}

.page-home .ph-dock__link:focus-visible {
  outline: 2px solid var(--electric-cyan);
  outline-offset: 2px;
}

.page-home .ph-dock__no {
  padding-top: 5px;
  font-size: var(--t-12);
  color: var(--ink-dim);
  letter-spacing: .08em;
}

.page-home .ph-dock__title {
  display: block;
  font-size: var(--t-18);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .ph-dock__desc {
  display: block;
  margin-top: 4px;
  font-size: var(--t-14);
  line-height: 1.66;
  color: var(--ink-dim);
}

.page-home .ph-dock__dot {
  width: 8px;
  height: 8px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--slate-mineral);
  box-shadow: inset 0 0 0 1px var(--line);
  transition: background .25s var(--ease), box-shadow .25s var(--ease);
}

.page-home .ph-dock__link:hover .ph-dock__dot {
  background: var(--electric-cyan);
  box-shadow: 0 0 10px rgba(51, 220, 198, .7);
}

/* ---------- 右侧栏 ---------- */
.page-home .ph-hero__aside {
  display: grid;
  gap: 18px;
}

.page-home .ph-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .ph-data {
  display: grid;
  gap: 18px;
  padding: 20px;
}

.page-home .ph-data__cap {
  font-size: var(--t-12);
  letter-spacing: .14em;
  color: var(--electric-cyan);
}

.page-home .ph-data__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 16px;
}

.page-home .ph-data .stat__value {
  display: block;
  font-family: var(--f-mono);
  font-size: var(--t-24);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .ph-data .stat__label {
  display: block;
  margin-top: 5px;
  font-size: var(--t-12);
  letter-spacing: .04em;
  color: var(--ink-dim);
}

/* ---------- 通用段落与标题 ---------- */
.page-home .spy-title {
  opacity: .58;
  transition: opacity .3s var(--ease);
}

.page-home [data-spy].is-current .spy-title {
  opacity: 1;
}

.page-home .ph-copy {
  max-width: 62ch;
  margin-top: 18px;
  font-size: var(--t-18);
  line-height: 1.78;
  color: var(--ink);
}

.page-home .ph-copy--wide {
  max-width: 72ch;
}

.page-home .ph-ver {
  padding: 2px 7px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-panel);
  color: var(--electric-cyan);
  cursor: pointer;
}

.page-home .ph-ver.is-copied {
  border-color: var(--electric-cyan);
  color: var(--bone-white);
}

.page-home .ph-more {
  margin-top: 30px;
  font-size: var(--t-18);
}

.page-home .ph-more__link {
  color: var(--jbo-terracotta);
  text-decoration: none;
  border-bottom: 1px solid rgba(226, 112, 58, .4);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-home .ph-more__link:hover {
  color: var(--bone-white);
  border-color: var(--bone-white);
}

/* ---------- 双栏错位 ---------- */
.page-home .ph-split {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-home .ph-split__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .ph-split__text .eyebrow {
  display: block;
  margin-bottom: 12px;
}

.page-home .ph-steps {
  margin: 24px 0 28px;
  padding: 0;
  list-style: none;
  counter-reset: phs;
  display: grid;
  gap: 13px;
}

.page-home .ph-steps li {
  counter-increment: phs;
  position: relative;
  padding-left: 42px;
  font-size: var(--t-18);
  line-height: 1.62;
  color: var(--ink);
}

.page-home .ph-steps li::before {
  content: counter(phs, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--f-mono);
  font-size: var(--t-12);
  letter-spacing: .06em;
  color: var(--jbo-terracotta);
}

/* ---------- 手机端收藏 ---------- */
.page-home .ph-keep__lede {
  max-width: 62ch;
  margin-top: 18px;
}

.page-home .ph-keep__body {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-home .ph-keep__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 320px;
}

.page-home .ph-facts {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  align-content: start;
}

.page-home .ph-facts__item {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 16px 6px;
  border-bottom: 1px solid var(--line);
}

.page-home .ph-facts__item:first-child {
  border-top: 1px solid var(--line);
}

.page-home .ph-facts__key {
  font-size: var(--t-12);
  letter-spacing: .12em;
  color: var(--electric-cyan);
}

.page-home .ph-facts__val {
  font-size: var(--t-18);
  line-height: 1.6;
  color: var(--ink);
}

/* ---------- 版本层级 ---------- */
.page-home .ph-tabs {
  margin-top: 30px;
}

.page-home .ph-panel {
  margin-top: 22px;
  padding: 24px clamp(18px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(27, 36, 54, .9), rgba(17, 27, 48, .8));
  box-shadow: var(--shadow-soft);
}

.page-home .ph-panel__title {
  margin: 0 0 14px;
  font-size: var(--t-24);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .ph-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 11px;
}

.page-home .ph-list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--t-18);
  line-height: 1.66;
  color: var(--ink);
}

.page-home .ph-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--moss-green);
}

/* ---------- 企业导出 ---------- */
.page-home .ph-export__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-home .ph-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-home .ph-export__card {
  padding: 26px clamp(18px, 3vw, 30px);
  align-self: start;
}

.page-home .ph-export__cap {
  font-size: var(--t-12);
  letter-spacing: .14em;
  color: var(--signal-magenta);
}

.page-home .ph-formats {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-home .ph-formats li {
  display: grid;
  gap: 5px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}

.page-home .ph-formats__code {
  font-size: var(--t-14);
  letter-spacing: .1em;
  color: var(--jbo-terracotta);
}

.page-home .ph-formats__note {
  font-size: var(--t-14);
  line-height: 1.6;
  color: var(--ink-dim);
}

.page-home .ph-export__meta {
  margin: 20px 0 0;
  font-size: var(--t-14);
  color: var(--ink-dim);
}

.page-home .ph-export__meta .mono {
  color: var(--bone-white);
}

/* ---------- 时间轴 ---------- */
.page-home .ph-track__banner {
  margin: 0 0 clamp(30px, 4vw, 48px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .ph-tl {
  position: relative;
  margin-top: clamp(28px, 4vw, 44px);
  padding-left: 30px;
}

.page-home .ph-tl::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: var(--line);
}

.page-home .ph-node {
  position: relative;
  border: 0;
  padding: 0 0 22px;
}

.page-home .ph-node::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--electric-cyan);
  box-shadow: 0 0 0 4px rgba(51, 220, 198, .13);
}

.page-home .ph-node__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 4px 0;
}

.page-home .ph-node__sum::-webkit-details-marker {
  display: none;
}

.page-home .ph-node__sum:focus-visible {
  outline: 2px solid var(--electric-cyan);
  outline-offset: 3px;
}

.page-home .ph-node__stamp {
  font-size: var(--t-12);
  letter-spacing: .1em;
  color: var(--ink-dim);
}

.page-home .ph-node__title {
  font-size: var(--t-18);
  font-weight: 700;
  color: var(--ink);
  transition: color .2s var(--ease);
}

.page-home .ph-node[open] .ph-node__title {
  color: var(--electric-cyan);
}

.page-home .ph-node__meta {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: var(--t-14);
  line-height: 1.72;
  color: var(--ink-dim);
}

/* ---------- 检索说明 ---------- */
.page-home .ph-search__grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-home .ph-search__panel {
  padding: 24px clamp(18px, 3vw, 28px);
  align-self: start;
}

.page-home .ph-search__cap {
  font-size: var(--t-12);
  letter-spacing: .14em;
  color: var(--electric-cyan);
}

.page-home .ph-queries {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-home .ph-queries__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
  font-size: var(--t-14);
  color: var(--ink-dim);
}

.page-home .ph-queries__item .mono {
  color: var(--bone-white);
  font-size: var(--t-14);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .ph-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .ph-hero__aside {
    margin-top: 48px;
  }

  .page-home .ph-export__grid,
  .page-home .ph-search__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .ph-keep__body {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-home .ph-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .ph-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: center;
  }

  .page-home .ph-split__media {
    order: -1;
  }

  .page-home .ph-keep__body {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 56px;
  }
}

@media (max-width: 480px) {
  .page-home .ph-facts__item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-home .ph-keep__media {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ph-hero::before {
    animation: none;
    opacity: .9;
  }

  .page-home .ph-dock__link,
  .page-home .ph-dock__dot,
  .page-home .spy-title {
    transition: none;
  }

  .page-home .ph-dock__link:hover {
    transform: none;
  }
}