.page-home {
  --home-soft: #B9C6DC;
  --home-light-soft: #46557A;
  --home-light-line: #D3DCEA;
  --home-dark-line: rgba(28, 42, 71, 0.7);
}

/* ---------- 首屏框架 ---------- */
.page-home .home-deck {
  position: relative;
  padding: 36px 0 56px;
  background-image: linear-gradient(to right, rgba(28, 42, 71, 0.45) 1px, transparent 1px);
  background-size: 96px 100%;
  background-position: 0 0;
}

.page-home .home-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin: 0 0 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

.page-home .home-context .mono {
  color: var(--amber);
  font-size: 14px;
  font-weight: 600;
}

.page-home .home-lede__title {
  margin: 10px 0 16px;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--body-text);
}

.page-home .home-lede__sub {
  max-width: 60ch;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--home-soft);
}

.page-home .home-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- 摘要条 ---------- */
.page-home .home-strip {
  display: grid;
  gap: 1px;
  margin: 34px 0 40px;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-home .home-strip li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: var(--ink-2);
  font-size: 14px;
  line-height: 1.6;
  color: var(--body-text);
}

.page-home .home-strip li::before {
  content: "";
  flex: 0 0 6px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: translateY(-2px);
}

.page-home .home-strip li:nth-child(2)::before { background: var(--blue); }
.page-home .home-strip li:nth-child(3)::before { background: var(--amber); }

/* ---------- 栏目树 + 摘要流 ---------- */
.page-home .home-deck__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

.page-home .home-tree__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--cyan);
}

.page-home .home-tree__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  color: var(--body-text);
}

.page-home .home-tree__hint {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-home .home-tree__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .home-node {
  border-bottom: 1px solid var(--line);
}

.page-home .home-node__sum {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 10px 16px 12px;
  list-style: none;
  cursor: pointer;
  transition: background var(--t-fast) ease;
}

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

.page-home .home-node__sum::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--t-fast) ease;
}

.page-home .home-node__sum:hover,
.page-home .home-node[open] > .home-node__sum {
  background: var(--ink-2);
}

.page-home .home-node__sum:hover::before,
.page-home .home-node[open] > .home-node__sum::before {
  transform: scaleY(1);
}

.page-home .home-node__num {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-home .home-node__name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: var(--body-text);
}

.page-home .home-node__count {
  font-size: 20px;
  font-weight: 600;
  color: var(--amber);
  text-align: right;
  letter-spacing: 0.02em;
}

.page-home .home-node__body {
  display: grid;
  gap: 10px;
  padding: 0 10px 20px 12px;
  padding-left: clamp(28px, 6vw, 52px);
}

.page-home .home-node__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-soft);
}

.page-home .home-node__sub {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.page-home .home-node__sub li {
  position: relative;
  padding-left: 12px;
}

.page-home .home-node__sub li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 4px;
  height: 4px;
  background: var(--blue);
}

.page-home .home-node__go,
.page-home .home-digest__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) ease, color var(--t-fast) ease;
}

.page-home .home-node__go:hover,
.page-home .home-digest__link:hover {
  border-bottom-color: var(--cyan);
}

.page-home .home-node__here {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- 右侧摘要 ---------- */
.page-home .home-digest {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-home .home-digest__box {
  padding: 18px 18px 20px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--amber);
}

.page-home .home-digest__box--alt {
  border-left-color: var(--cyan);
}

.page-home .home-digest__title {
  margin: 6px 0 8px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--body-text);
}

.page-home .home-digest__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-soft);
}

/* ---------- 公告节 ---------- */
.page-home .home-news { padding: 56px 0; }

.page-home .home-news__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-home .home-facts {
  display: grid;
  gap: 1px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
}

.page-home .home-fact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 16px 18px;
  background: var(--ink);
}

.page-home .home-fact__k {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-home .home-fact__v {
  font-size: 28px;
  font-weight: 600;
  line-height: 1;
  color: var(--amber);
}

.page-home .home-fact p {
  flex-basis: 100%;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-soft);
}

.page-home .home-news__note {
  margin: 0 0 20px;
  color: var(--home-soft);
}

/* ---------- 切换对照（浅底） ---------- */
.page-home .home-switch { padding: 56px 0; }

.page-home .home-switch .chapter__title { color: var(--ink); }
.page-home .home-switch .chapter__note { color: var(--home-light-soft); }
.page-home .home-switch .chapter__index { color: var(--blue); }

.page-home .home-switch__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.page-home .home-switch__row {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-top: 1px solid var(--home-light-line);
}

.page-home .home-switch__label {
  margin: 0;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.page-home .home-switch__path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin: 0;
  font-size: 14px;
}

.page-home .home-switch__before {
  padding: 3px 10px;
  border: 1px solid var(--home-light-line);
  color: var(--home-light-soft);
  background: #fff;
}

.page-home .home-switch__after {
  padding: 3px 10px;
  border: 1px solid var(--blue);
  color: var(--ink);
  font-weight: 600;
  background: rgba(76, 125, 255, 0.1);
}

.page-home .home-switch__arrow {
  color: var(--blue);
  font-size: 14px;
}

.page-home .home-switch__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-light-soft);
}

.page-home .home-switch__cta {
  justify-self: start;
  margin-top: 6px;
}

/* ---------- 三条动线 ---------- */
.page-home .home-paths { padding: 56px 0; }

.page-home .home-paths__map {
  display: block;
  width: 100%;
  height: clamp(44px, 7vw, 88px);
  margin: 6px 0 26px;
  opacity: 0.85;
}

.page-home .home-paths__map path {
  fill: none;
  stroke-width: 1.5;
  stroke-dasharray: 6 6;
  vector-effect: non-scaling-stroke;
}

.page-home .home-paths__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-path {
  padding: 20px 20px 22px;
  background: var(--ink-2);
  border-top: 2px solid var(--cyan);
}

.page-home .home-path:nth-child(2) { border-top-color: var(--blue); }
.page-home .home-path:nth-child(3) { border-top-color: var(--amber); }

.page-home .home-path__k {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-home .home-path__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  color: var(--body-text);
}

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

.page-home .home-path__steps li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--home-soft);
}

.page-home .home-path__steps li span {
  font-size: 12px;
  color: var(--cyan);
  padding-top: 3px;
}

/* ---------- 帮助中心 ---------- */
.page-home .home-help { padding: 56px 0; }

.page-home .home-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-home .home-help__cats {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
}

.page-home .home-help__cat {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  background: var(--ink);
  text-decoration: none;
  transition: background var(--t-fast) ease;
}

.page-home .home-help__cat:hover { background: var(--ink-2); }

.page-home .home-help__n {
  font-size: 22px;
  font-weight: 600;
  color: var(--amber);
  min-width: 2.4em;
}

.page-home .home-help__name {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  color: var(--body-text);
}

.page-home .home-help__go {
  color: var(--cyan);
  font-size: 14px;
}

.page-home .home-help__more {
  margin: 0;
  padding: 16px 18px;
  background: var(--ink);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .home-help__side {
  display: grid;
  gap: 20px;
}

.page-home .home-help__sla {
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--ink);
}

.page-home .home-help__sla-k {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--cyan);
}

.page-home .home-help__sla-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-soft);
}

/* ---------- 收束 ---------- */
.page-home .home-next {
  padding: 56px 0 72px;
  border-top: 1px solid var(--line);
}

.page-home .home-next__title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--body-text);
}

.page-home .home-next__text {
  max-width: 58ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--home-soft);
}

.page-home .home-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 图片容器兜底 ---------- */
.page-home .figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-home .home-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-news__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 36px;
  }

  .page-home .home-help__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
  }
}

@media (min-width: 960px) {
  .page-home .home-switch__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }

  .page-home .home-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1040px) {
  .page-home .home-deck__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 44px;
    align-items: start;
  }

  .page-home .home-digest {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
  }

  .page-home .home-deck {
    padding: 48px 0 64px;
    background-size: 120px 100%;
  }

  .page-home .home-node__count { font-size: 22px; }
}

@media (min-width: 1280px) {
  .page-home .home-lede__sub { font-size: 16px; }
  .page-home .home-node__name { font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-node__sum,
  .page-home .home-node__sum::before,
  .page-home .home-node__go,
  .page-home .home-digest__link,
  .page-home .home-help__cat {
    transition: none;
  }
}