.page-home {
  --ph-line: var(--grid-700);
  --ph-card: var(--ink-850);
  --ph-pad: clamp(14px, 1.6vw, 20px);
  --ph-rise: 12px;
  background: var(--ink-950);
  color: var(--text-100);
  overflow-x: clip;
}

.page-home .crumb {
  padding: 20px 0 0;
  font-size: 13.5px;
  color: var(--text-400);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.page-home .crumb a {
  color: var(--blue-300);
  text-decoration: none;
}

.page-home .crumb a:hover {
  text-decoration: underline;
}

/* ---------- 首屏拼贴 ---------- */

.page-home .ph-hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(28px, 4.4vw, 56px);
  border-bottom: 1px solid var(--ph-line);
}

.page-home .ph-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(47, 107, 255, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(47, 107, 255, 0.08) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: radial-gradient(118% 88% at 80% 6%, #000 0%, transparent 74%);
  mask-image: radial-gradient(118% 88% at 80% 6%, #000 0%, transparent 74%);
}

.page-home .ph-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(14px, 1.8vw, 24px);
}

.page-home .ph-lead,
.page-home .ph-viz,
.page-home .ph-chains,
.page-home .ph-stat {
  grid-column: 1 / -1;
}

.page-home .ph-lead .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--blue-300);
  text-transform: uppercase;
  margin: 0 0 12px;
}

.page-home .ph-lead h1 {
  margin: 0;
  font-size: var(--fs-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.14;
  color: var(--text-100);
  max-width: 20ch;
}

.page-home .ph-lead__desc {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.84;
  max-width: 62ch;
}

.page-home .ph-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-home .ph-lead__hint {
  margin: 18px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--text-400);
}

.page-home .ph-viz .figure {
  margin: 0;
}

.page-home .ph-viz .figure__frame {
  border: 1px solid var(--ph-line);
  background: linear-gradient(158deg, var(--ink-850), var(--ink-900));
  overflow: hidden;
}

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

.page-home .figure__cap {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-chains {
  border: 1px solid var(--ph-line);
  background: var(--ph-card);
  padding: var(--ph-pad);
}

.page-home .ph-chains__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ph-line);
}

.page-home .ph-chains__head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--blue-300);
}

.page-home .ph-chainlist {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
}

.page-home .ph-chainlist li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 9px;
  border: 1px solid var(--ph-line);
  font-size: 13.5px;
  color: var(--text-100);
  opacity: 0.88;
}

.page-home .ph-chainlist li .mono {
  font-size: 11.5px;
  color: var(--blue-300);
  letter-spacing: 0.04em;
}

.page-home .ph-stat {
  display: grid;
  gap: 10px;
  align-content: start;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.page-home .ph-stat__card {
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
  padding: 14px 16px;
}

.page-home .ph-stat__k {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--text-400);
}

.page-home .ph-stat__v {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: var(--lh-note);
  color: var(--text-100);
}

.page-home .ph-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 0 rgba(34, 200, 163, 0.6);
  animation: ph-pulse 2200ms var(--ease) infinite;
}

@keyframes ph-pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 200, 163, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(34, 200, 163, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 200, 163, 0); }
}

/* ---------- 主体：索引 + 内容流 ---------- */

.page-home .ph-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  padding: clamp(26px, 4vw, 54px) 0 clamp(44px, 6vw, 84px);
}

.page-home .ph-toc {
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
  padding: 12px;
}

.page-home .ph-toc__h {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--text-400);
}

.page-home .ph-toc__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0 0 2px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .ph-toc__list a {
  display: block;
  white-space: nowrap;
  padding: 8px 10px;
  border: 1px solid var(--ph-line);
  color: var(--text-400);
  text-decoration: none;
  font-size: 13.5px;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-home .ph-toc__list a .mono {
  font-size: 11.5px;
  color: var(--blue-300);
  margin-right: 6px;
}

.page-home .ph-toc__list a:hover,
.page-home .ph-toc__list a:focus-visible {
  border-color: var(--blue-600);
  color: var(--text-100);
  background: rgba(47, 107, 255, 0.08);
}

.page-home .ph-flow {
  min-width: 0;
}

.page-home .ph-sec + .ph-sec {
  margin-top: clamp(38px, 5vw, 72px);
}

.page-home .ph-sec .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ph-line);
}

.page-home .ph-sec .section-head h2 {
  margin: 0;
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.28;
  color: var(--text-100);
}

.page-home .ph-sec .section-head__meta {
  margin: 0;
  font-size: 13px;
  color: var(--text-400);
  font-family: var(--font-mono);
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--blue-300);
  text-transform: uppercase;
}

.page-home .ph-split__body h2 {
  margin: 8px 0 0;
  font-size: var(--fs-h3);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--text-100);
}

.page-home .ph-split__body p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.86;
}

/* ---------- 三步动线 ---------- */

.page-home .ph-band {
  margin: 22px 0 0;
}

.page-home .ph-band .figure__frame {
  border: 1px solid var(--ph-line);
  background: linear-gradient(120deg, var(--ink-900), var(--ink-850));
  overflow: hidden;
}

.page-home .ph-steps {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-home .ph-step details {
  border: 1px solid var(--ph-line);
  border-left: 3px solid var(--blue-600);
  background: var(--ph-card);
}

.page-home .ph-step summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-home .ph-step summary::after {
  content: "展开";
  margin-left: auto;
  font-size: 12px;
  color: var(--text-400);
  border: 1px solid var(--ph-line);
  padding: 2px 7px;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-home .ph-step details[open] summary::after {
  content: "收起";
  border-color: var(--blue-600);
  color: var(--blue-300);
}

.page-home .ph-step summary:focus-visible {
  outline: 2px solid var(--blue-300);
  outline-offset: 2px;
}

.page-home .ph-step__coord {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--blue-300);
}

.page-home .ph-step__title {
  font-size: 17px;
  font-weight: 800;
  color: var(--text-100);
}

.page-home .ph-step__body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--ph-line);
}

.page-home .ph-step__pre {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: var(--lh-note);
  color: var(--amber-400);
}

.page-home .ph-step__list {
  margin: 12px 0 0;
  padding-left: 1.2em;
  display: grid;
  gap: 8px;
  font-size: 15px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.9;
}

/* ---------- 分类口径 ---------- */

.page-home .ph-split {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
}

.page-home .ph-split .figure {
  margin: 0;
}

.page-home .ph-split .figure__frame {
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
  overflow: hidden;
}

.page-home .ph-facts {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .ph-facts li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.88;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(28, 44, 73, 0.9);
}

.page-home .ph-facts li .mono {
  font-size: 12px;
  color: var(--cyan-400);
}

.page-home .ph-split__body .bt {
  margin-top: 18px;
}

/* ---------- 状态图例与账本 ---------- */

.page-home .ph-legend {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-home .ph-legend__item {
  border: 1px solid var(--ph-line);
  border-left-width: 3px;
  background: var(--ink-900);
  padding: 13px 15px;
}

.page-home .ph-legend__item--ok { border-left-color: var(--cyan-400); }
.page-home .ph-legend__item--wait { border-left-color: var(--amber-400); }
.page-home .ph-legend__item--warn { border-left-color: var(--alert-500); }

.page-home .ph-legend__k {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-100);
}

.page-home .ph-legend__v {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .tbl-wrap {
  margin-top: 22px;
  overflow-x: auto;
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
}

.page-home .ph-tbl-cap {
  caption-side: top;
  text-align: left;
  padding: 12px 14px 0;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--text-400);
}

.page-home .tbl {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-home .tbl th,
.page-home .tbl td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--ph-line);
  white-space: nowrap;
}

.page-home .tbl thead th {
  position: sticky;
  top: 0;
  background: var(--ink-850);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-400);
}

.page-home .tbl tbody tr:last-child td {
  border-bottom: 0;
}

.page-home .tbl td {
  color: var(--text-100);
}

.page-home .tbl .addr {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--blue-300);
}

.page-home .tbl .mono {
  font-size: 12.5px;
}

.page-home .ph-copy {
  margin-top: 20px;
  border: 1px solid var(--ph-line);
  background: var(--ink-850);
  padding: 16px;
  display: grid;
  gap: 12px;
  justify-items: start;
}

.page-home .ph-copy__text {
  margin: 0;
  font-size: 14px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-copy__addr {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--text-100);
  word-break: break-all;
}

.page-home .ph-copy__btn[data-state="copied"] {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

/* ---------- 记录可查 ---------- */

.page-home .ph-exports {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
  margin-top: 22px;
}

.page-home .ph-paper {
  color: var(--ink-950);
  padding: clamp(18px, 2.2vw, 26px);
}

.page-home .ph-paper__h {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

.page-home .ph-paper__h + p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: var(--lh-body);
  color: #22304a;
}

.page-home .ph-paper p + .ph-paper__h {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid rgba(6, 11, 22, 0.16);
}

.page-home .ph-exportfig {
  margin: 0;
}

.page-home .ph-exportfig .figure__frame {
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
  overflow: hidden;
}

.page-home .ph-exportfig .figure__cap {
  color: var(--text-400);
}

/* ---------- 帮助分诊 ---------- */

.page-home .ph-triage {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-home .ph-triage__card {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--ph-line);
  background: var(--ph-card);
  text-decoration: none;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .ph-triage__card:hover,
.page-home .ph-triage__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--blue-600);
}

.page-home .ph-triage__coord {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--blue-300);
}

.page-home .ph-triage__t {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-100);
}

.page-home .ph-triage__d {
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-footnote {
  margin: 20px 0 0;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-footnote a {
  color: var(--blue-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 进入动效 ---------- */

.js .page-home [data-reveal] {
  opacity: 0;
  transform: translateY(var(--ph-rise));
  transition: opacity 340ms var(--ease), transform 340ms var(--ease);
}

.js .page-home [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 断点 ---------- */

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

@media (min-width: 768px) {
  .page-home .ph-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
  .page-home .ph-step:nth-child(2) {
    margin-top: 26px;
  }
  .page-home .ph-step:nth-child(3) {
    margin-top: 52px;
  }
  .page-home .ph-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .ph-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
  .page-home .ph-exports {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-home .ph-lead { grid-column: 1 / 8; }
  .page-home .ph-viz { grid-column: 8 / 13; }
  .page-home .ph-chains { grid-column: 1 / 9; }
  .page-home .ph-stat { grid-column: 9 / 13; }

  .page-home .ph-viz .figure__frame {
    box-shadow: 12px 12px 0 rgba(47, 107, 255, 0.15);
  }

  .page-home .ph-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 48px;
  }

  .page-home .ph-toc {
    position: sticky;
    top: 112px;
    align-self: start;
  }

  .page-home .ph-toc__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-home .ph-toc__list a {
    white-space: normal;
  }

  .page-home .ph-triage {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .page-home .ph-steps {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .page-home [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-home .ph-dot {
    animation: none;
  }
  .page-home .ph-triage__card {
    transition: none;
  }
}
</main>

.page-home {
  --ph-line: var(--grid-700);
  --ph-card: var(--ink-850);
  --ph-pad: clamp(14px, 1.6vw, 20px);
  --ph-rise: 12px;
  background: var(--ink-950);
  color: var(--text-100);
  overflow-x: clip;
}

/* 面包屑所在行 */
.page-home .ph-topbar {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-home .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text-400);
}

.page-home .crumb a {
  color: var(--blue-300);
  text-decoration: none;
}

.page-home .crumb a:hover {
  text-decoration: underline;
}

.page-home .crumb__sep {
  color: var(--grid-700);
}

/* ---------- 首屏拼贴 ---------- */

.page-home .ph-hero {
  position: relative;
  padding: clamp(26px, 4vw, 54px) 0 clamp(30px, 4.4vw, 58px);
  border-bottom: 1px solid var(--ph-line);
  overflow: hidden;
}

.page-home .ph-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(47, 107, 255, 0.10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(47, 107, 255, 0.07) 1px, transparent 1px);
  background-size: 88px 88px;
  -webkit-mask-image: radial-gradient(120% 92% at 78% 10%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 92% at 78% 10%, #000 0%, transparent 72%);
}

.page-home .ph-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(14px, 1.8vw, 22px);
  align-items: start;
}

.page-home .ph-lead,
.page-home .ph-viz,
.page-home .ph-chains,
.page-home .ph-stat {
  grid-column: 1 / -1;
}

.page-home .ph-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.09em;
  color: var(--blue-300);
}

.page-home .ph-lead h1 {
  margin: 0;
  font-size: var(--fs-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
  color: var(--text-100);
  max-width: 22ch;
}

.page-home .ph-lead__desc {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.82;
}

.page-home .ph-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-home .ph-hint {
  margin: 18px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--text-400);
  word-break: break-word;
}

.page-home .ph-viz figure {
  margin: 0;
}

.page-home .figure__frame {
  border: 1px solid var(--ph-line);
  background: linear-gradient(160deg, var(--ink-850), var(--ink-900));
  overflow: hidden;
}

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

.page-home .ph-viz .figure__cap {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-chains {
  border: 1px solid var(--ph-line);
  background: var(--ph-card);
  padding: var(--ph-pad);
}

.page-home .ph-chains__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ph-line);
}

.page-home .ph-chains__head .ph-eyebrow {
  margin: 0;
}

.page-home .ph-chainlist {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.page-home .ph-chainlist li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 9px;
  border: 1px solid var(--ph-line);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text-100);
}

.page-home .ph-chainlist li span.mono {
  font-size: 11.5px;
  color: var(--blue-300);
  letter-spacing: 0.04em;
}

.page-home .ph-stat {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-home .ph-stat__card {
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
  padding: 14px 16px;
}

.page-home .ph-stat__k {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-400);
}

.page-home .ph-stat__v {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: var(--lh-note);
  color: var(--text-100);
}

.page-home .ph-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 3px rgba(34, 200, 163, 0.16);
  animation: ph-pulse 2400ms var(--ease) infinite;
}

@keyframes ph-pulse {
  0% { box-shadow: 0 0 0 3px rgba(34, 200, 163, 0.20); }
  70% { box-shadow: 0 0 0 7px rgba(34, 200, 163, 0); }
  100% { box-shadow: 0 0 0 3px rgba(34, 200, 163, 0.20); }
}

/* ---------- 主体：索引 + 内容流 ---------- */

.page-home .ph-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 34px);
  padding: clamp(30px, 4vw, 58px) 0 clamp(46px, 6vw, 86px);
}

.page-home .ph-toc {
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
  padding: 12px;
}

.page-home .ph-toc__h {
  margin: 0;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-400);
}

.page-home .ph-toc__list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0 0 2px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .ph-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 7px;
  white-space: nowrap;
  padding: 8px 10px;
  border: 1px solid var(--ph-line);
  color: var(--text-400);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-home .ph-toc__list a .mono {
  font-size: 11.5px;
  color: var(--blue-300);
  letter-spacing: 0.04em;
}

.page-home .ph-toc__list a:hover,
.page-home .ph-toc__list a:focus-visible {
  border-color: var(--blue-600);
  color: var(--text-100);
}

.page-home .ph-flow {
  min-width: 0;
  display: grid;
  gap: clamp(38px, 5vw, 72px);
}

.page-home .ph-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ph-line);
}

.page-home .ph-head h2 {
  margin: 0;
  font-size: var(--fs-h2);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text-100);
  max-width: 26ch;
}

.page-home .ph-head__meta {
  margin: 0;
  font-size: 13px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-sec > p {
  margin: 18px 0 0;
  font-size: 16px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.82;
  max-width: 68ch;
}

.page-home .ph-band {
  margin: 22px 0 0;
}

.page-home .ph-band .figure__cap,
.page-home .ph-fig figcaption {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-steps {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-home .ph-step details {
  border: 1px solid var(--ph-line);
  border-left: 3px solid var(--blue-600);
  background: var(--ink-850);
}

.page-home .ph-step summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-home .ph-step summary::after {
  content: "展开";
  margin-left: auto;
  font-size: 12px;
  color: var(--text-400);
  border: 1px solid var(--ph-line);
  padding: 1px 7px;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-home .ph-step details[open] summary::after {
  content: "收起";
  border-color: var(--blue-600);
  color: var(--blue-300);
}

.page-home .ph-step summary:focus-visible {
  outline: 2px solid var(--blue-300);
  outline-offset: 2px;
}

.page-home .ph-step__coord {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--blue-300);
}

.page-home .ph-step__title {
  font-size: 17px;
  font-weight: 800;
  color: var(--text-100);
}

.page-home .ph-step__body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--ph-line);
}

.page-home .ph-step__pre {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: var(--lh-note);
  color: var(--amber-400);
}

.page-home .ph-step__list {
  margin: 12px 0 0;
  padding-left: 1.15em;
  display: grid;
  gap: 7px;
  font-size: 15px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.9;
}

.page-home .ph-split {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
  margin-top: 24px;
}

.page-home .ph-split figure {
  margin: 0;
}

.page-home .ph-split__body h3 {
  margin: 0;
  font-size: var(--fs-h3);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.32;
  color: var(--text-100);
}

.page-home .ph-split__body p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: var(--lh-body);
  color: var(--text-100);
  opacity: 0.82;
}

.page-home .ph-facts {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .ph-facts li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: var(--lh-note);
  color: var(--text-100);
  opacity: 0.86;
}

.page-home .ph-facts li .mono {
  font-size: 12px;
  color: var(--cyan-400);
  padding-top: 2px;
}

.page-home .ph-split__body .bt {
  margin-top: 20px;
}

/* 状态图例 */
.page-home .ph-legend {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-home .ph-legend__item {
  border: 1px solid var(--ph-line);
  border-left-width: 3px;
  background: var(--ink-850);
  padding: 14px 16px;
}

.page-home .ph-legend__item--ok { border-left-color: var(--cyan-400); }
.page-home .ph-legend__item--wait { border-left-color: var(--amber-400); }
.page-home .ph-legend__item--warn { border-left-color: var(--alert-500); }

.page-home .ph-legend__k {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-100);
}

.page-home .ph-legend__v {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

/* 账本片段表 */
.page-home .ph-ledger .tbl-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid var(--ph-line);
  background: var(--ink-900);
}

.page-home .ph-tbl-cap {
  caption-side: top;
  text-align: left;
  padding: 12px 14px 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-400);
}

.page-home .ph-tbl {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-home .ph-tbl th,
.page-home .ph-tbl td {
  padding: 11px 14px;
  text-align: left;
  border-bottom: 1px solid var(--ph-line);
  white-space: nowrap;
}

.page-home .ph-tbl thead th {
  position: sticky;
  top: 0;
  background: var(--ink-850);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-400);
}

.page-home .ph-tbl tbody tr:last-child td {
  border-bottom: 0;
}

.page-home .ph-tbl td {
  color: var(--text-100);
}

.page-home .ph-tbl .addr,
.page-home .ph-tbl .mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.page-home .ph-tbl .addr {
  color: var(--blue-300);
}

/* 复制核对条 */
.page-home .ph-copy {
  margin-top: 20px;
  border: 1px solid var(--ph-line);
  background: var(--ink-850);
  padding: 16px;
  display: grid;
  gap: 12px;
  justify-items: start;
}

.page-home .ph-copy__text {
  margin: 0;
  font-size: 14px;
  line-height: var(--lh-note);
  color: var(--text-400);
  max-width: 60ch;
}

.page-home .ph-copy__addr {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--text-100);
  word-break: break-all;
}

.page-home .ph-copy__btn[data-state="copied"] {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

/* 记录可查：宽窄两栏 */
.page-home .ph-exports {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
  margin-top: 24px;
}

.page-home .ph-paper {
  color: var(--ink-950);
}

.page-home .ph-paper h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink-950);
}

.page-home .ph-paper h3 + p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: var(--lh-body);
  color: #23304a;
}

.page-home .ph-paper h3 + p ~ h3 {
  margin-top: 22px;
}

.page-home .ph-note {
  margin: 20px 0 0;
  border-top: 1px solid var(--ph-line);
  padding-top: 16px;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-note a {
  color: var(--blue-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .ph-exportfig {
  margin: 0;
}

/* 帮助分诊 */
.page-home .ph-triage {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-home .ph-triage__card {
  display: grid;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--ph-line);
  background: var(--ink-850);
  text-decoration: none;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .ph-triage__card:hover,
.page-home .ph-triage__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--blue-600);
}

.page-home .ph-triage__coord {
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--blue-300);
}

.page-home .ph-triage__t {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-100);
}

.page-home .ph-triage__d {
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-footnote {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: var(--lh-note);
  color: var(--text-400);
}

.page-home .ph-footnote a {
  color: var(--blue-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 轻量进入动效（无脚本时内容完整可见） */
.js .page-home [data-reveal] {
  opacity: 0;
  transform: translateY(var(--ph-rise));
  transition: opacity 340ms var(--ease), transform 340ms var(--ease);
}

.js .page-home [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 断点 ---------- */

@media (min-width: 560px) {
  .page-home .ph-legend,
  .page-home .ph-triage,
  .page-home .ph-stat {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .page-home .ph-triage {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .ph-exportfig {
    margin-top: 6px;
  }
}

@media (min-width: 900px) {
  .page-home .ph-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .ph-step:nth-child(2) {
    margin-top: 28px;
  }

  .page-home .ph-step:nth-child(3) {
    margin-top: 56px;
  }

  .page-home .ph-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-home .ph-exports {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-home .ph-lead { grid-column: 1 / 8; }
  .page-home .ph-viz { grid-column: 8 / 13; }
  .page-home .ph-chains { grid-column: 1 / 9; }
  .page-home .ph-stat { grid-column: 9 / 13; }

  .page-home .ph-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: 48px;
  }

  .page-home .ph-toc {
    position: sticky;
    top: 112px;
    align-self: start;
  }

  .page-home .ph-toc__list {
    flex-direction: column;
    overflow: visible;
  }

  .page-home .ph-toc__list a {
    white-space: normal;
  }

  .page-home .ph-viz .figure__frame {
    box-shadow: 13px 13px 0 rgba(47, 107, 255, 0.15);
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .page-home [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-home .ph-dot {
    animation: none;
  }

  .page-home .ph-triage__card {
    transition: none;
  }
}
<<<END>>>