.page-home {
  --home-sticky-top: 96px;
  --home-rail-w: 250px;
}

.page-home .board {
  padding: clamp(1rem, 3vw, 1.9rem) 0 clamp(2.2rem, 5vw, 3.4rem);
  background:
    radial-gradient(circle at 90% 4%, rgba(217, 238, 243, .95), transparent 58%),
    radial-gradient(circle at 6% 96%, rgba(232, 121, 46, .09), transparent 52%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-home .board-shell {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-home .hero-intro {
  margin-top: .9rem;
}

.page-home .hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--lake);
  text-transform: uppercase;
}

.page-home .hero-dot {
  width: .5rem;
  height: .5rem;
  border-radius: 999px;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(232, 121, 46, .16);
}

.page-home h1 {
  margin: 0 0 .9rem;
  font-size: clamp(1.8rem, 5.2vw, 3rem);
  line-height: 1.22;
  letter-spacing: .02em;
  font-weight: 800;
  color: var(--lake-deep);
}

.page-home .lede {
  margin: 0;
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: clamp(.94rem, 1.5vw, 1.04rem);
  line-height: 1.78;
}

/* 焦点更新卡 */
.page-home .focus-card {
  position: relative;
  margin-top: clamp(1.1rem, 3vw, 1.6rem);
  display: flex;
  align-items: flex-end;
  min-height: 21rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-lake);
  box-shadow: var(--shadow-raise);
  background: var(--lake-deep);
}

.page-home .focus-media {
  position: absolute;
  inset: 0;
  margin: 0;
}

.page-home .focus-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-home .focus-body {
  position: relative;
  width: 100%;
  padding: clamp(1.2rem, 3.4vw, 2rem);
  background: linear-gradient(to top, rgba(7, 59, 76, .97) 34%, rgba(7, 59, 76, .74) 68%, rgba(7, 59, 76, .12) 100%);
  color: var(--paper);
}

.page-home .tag-light {
  background: rgba(232, 121, 46, .92);
  color: #fff;
  border-color: transparent;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
}

.page-home .focus-title {
  margin: .55rem 0 .5rem;
  font-size: clamp(1.3rem, 3.4vw, 1.85rem);
  line-height: 1.32;
  letter-spacing: .02em;
  color: #fff;
}

.page-home .focus-text {
  margin: 0 0 1rem;
  max-width: 48ch;
  font-size: .95rem;
  line-height: 1.72;
  color: rgba(246, 241, 231, .9);
}

/* 数据条 */
.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1rem, 2.6vw, 1.4rem) 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-home .stat-cell {
  padding: .85rem .7rem;
  background: var(--paper-raise);
}

.page-home .stat-cell dt {
  margin: 0 0 .35rem;
  font-size: .74rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

.page-home .stat-cell dd {
  margin: 0;
  font-size: .92rem;
  color: var(--ink);
  letter-spacing: .01em;
}

.page-home .stat-num {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--lake);
  letter-spacing: .06em;
}

/* 小卡组 */
.page-home .mini-grid {
  display: grid;
  gap: .85rem;
  margin-top: clamp(1rem, 2.6vw, 1.4rem);
}

.page-home .mini-card {
  padding: 1rem 1.05rem;
  background: var(--paper-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-home .mini-card:hover,
.page-home .mini-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--line-lake);
  box-shadow: var(--shadow-raise);
}

.page-home .mini-card-accent {
  border-left: 3px solid var(--orange);
}

.page-home .mini-title {
  margin: 0 0 .45rem;
  font-size: 1rem;
  line-height: 1.45;
  letter-spacing: .02em;
  color: var(--lake-deep);
}

.page-home .mini-text {
  margin: 0 0 .7rem;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-home .text-link {
  display: inline-block;
  font-size: .84rem;
  font-weight: 600;
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lake);
  padding-bottom: 1px;
  transition: color var(--ease), border-color var(--ease);
}

.page-home .text-link:hover,
.page-home .text-link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* 浮动索引 */
.page-home .board-rail {
  order: 2;
}

.page-home .rail-card {
  padding: .85rem;
  background: rgba(251, 248, 241, .86);
  border: 1px solid var(--line-lake);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(6px);
}

.page-home .rail-head {
  margin: 0 0 .6rem;
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--ink-soft);
}

.page-home .rail-head .mono {
  color: var(--lake);
  letter-spacing: .14em;
}

.page-home .index-list {
  display: flex;
  gap: .4rem;
  margin: 0;
  padding: 0 0 .2rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-home .index-link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .5rem .7rem;
  min-height: 44px;
  font-size: .84rem;
  white-space: nowrap;
  color: var(--ink);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-raise);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-home .idx-num {
  font-size: .72rem;
  color: var(--lake);
  letter-spacing: .1em;
}

.page-home .index-link:hover,
.page-home .index-link:focus-visible {
  border-color: var(--orange);
  color: var(--lake-deep);
}

.page-home .index-link[aria-current="true"] {
  background: var(--lake-pale);
  border-color: var(--lake);
  color: var(--lake-deep);
  font-weight: 600;
}

.page-home .rail-cta {
  display: none;
  width: 100%;
  margin-top: .7rem;
  justify-content: center;
}

/* 章节通用 */
.page-home .section {
  padding: clamp(2.2rem, 5vw, 3.6rem) 0;
}

.page-home .section-head {
  max-width: 62ch;
  margin-bottom: clamp(1.1rem, 3vw, 1.8rem);
}

.page-home .kicker {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 .6rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--lake);
}

.page-home .section-num {
  display: inline-block;
  padding: .15rem .45rem;
  font-size: .82rem;
  font-weight: 700;
  color: #fff;
  background: var(--lake);
  border-radius: 4px;
  letter-spacing: .06em;
}

.page-home .section-title {
  margin: 0 0 .6rem;
  font-size: clamp(1.35rem, 3.2vw, 1.95rem);
  line-height: 1.32;
  letter-spacing: .02em;
  color: var(--lake-deep);
}

.page-home .section-lede {
  margin: 0;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* 02 站内索引 */
.page-home .entries {
  background: var(--paper);
}

.page-home .entries-grid {
  display: grid;
  gap: 1.1rem;
}

.page-home .entries-media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--lake-pale);
}

.page-home .entries-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-home .media-caption {
  padding: .55rem .8rem .7rem;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  background: var(--paper-raise);
}

.page-home .entry-list {
  display: grid;
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .entry {
  display: flex;
  gap: .8rem;
  align-items: flex-start;
  padding: .8rem .9rem;
  min-height: 44px;
  text-decoration: none;
  color: inherit;
  background: var(--paper-raise);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-home .entry:hover,
.page-home .entry:focus-visible {
  border-color: var(--lake);
  background: var(--lake-pale);
  transform: translateX(2px);
}

.page-home .entry-num {
  flex: 0 0 auto;
  width: 1.6rem;
  height: 1.6rem;
  display: grid;
  place-items: center;
  font-size: .78rem;
  font-weight: 700;
  color: #fff;
  background: var(--lake);
  border-radius: 4px;
}

.page-home .entry-body {
  display: block;
  font-size: .88rem;
  line-height: 1.68;
  color: var(--ink-soft);
}

.page-home .entry-body strong {
  display: block;
  margin-bottom: .15rem;
  font-size: .95rem;
  color: var(--lake-deep);
  letter-spacing: .02em;
}

/* 03 自查路径 */
.page-home .path {
  background: linear-gradient(180deg, var(--lake-pale), rgba(217, 238, 243, .35));
  border-top: 1px solid var(--line-lake);
  border-bottom: 1px solid var(--line-lake);
}

.page-home .path-grid {
  display: grid;
  gap: 1.1rem;
}

.page-home .path-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-lake);
  box-shadow: var(--shadow-soft);
}

.page-home .path-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-home .step-list {
  display: grid;
  gap: .65rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-home .step {
  position: relative;
  padding: .95rem 1rem .95rem 1.05rem;
  background: var(--paper-raise);
  border: 1px solid var(--line);
  border-left: 3px solid var(--barley);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
}

.page-home .step:nth-child(3) {
  border-left-color: var(--orange);
}

.page-home .step-num {
  display: block;
  font-size: .74rem;
  letter-spacing: .15em;
  color: var(--lake);
  margin-bottom: .25rem;
}

.page-home .step-title {
  margin: 0 0 .35rem;
  font-size: 1rem;
  line-height: 1.45;
  letter-spacing: .02em;
  color: var(--lake-deep);
}

.page-home .step-text {
  margin: 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-home .path-note {
  margin-top: 1.1rem;
  font-size: .87rem;
  line-height: 1.75;
}

.page-home .path-note .text-link {
  margin-left: .4rem;
}

/* 04 案例与日志 */
.page-home .log {
  background: var(--paper);
}

.page-home .log-banner {
  margin: 0 0 1.1rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-home .log-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 12 / 5;
}

.page-home .log-list {
  display: grid;
  gap: .6rem;
}

.page-home .log-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper-raise);
  overflow: hidden;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-home .log-item[open] {
  border-color: var(--line-lake);
  box-shadow: var(--shadow-soft);
}

.page-home .log-item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  padding: .85rem 2.4rem .85rem .95rem;
  min-height: 44px;
  cursor: pointer;
  font-size: .93rem;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--lake-deep);
  list-style: none;
  position: relative;
}

.page-home .log-item summary::-webkit-details-marker {
  display: none;
}

.page-home .log-item summary::after {
  content: "+";
  position: absolute;
  right: .95rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--lake);
}

.page-home .log-item[open] summary::after {
  content: "–";
  color: var(--orange);
}

.page-home .log-item summary:hover {
  background: var(--lake-pale);
}

.page-home .log-item summary:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: -2px;
}

.page-home .log-tag {
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--orange);
  background: rgba(232, 121, 46, .12);
  border: 1px solid rgba(232, 121, 46, .3);
  border-radius: 999px;
  padding: .1rem .5rem;
}

.page-home .log-item p {
  margin: 0;
  padding: 0 .95rem 1rem;
  font-size: .88rem;
  line-height: 1.76;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: .75rem;
}

.page-home .log-more {
  margin: 1.1rem 0 0;
}

/* 05 客服与额度 */
.page-home .support {
  background:
    radial-gradient(circle at 4% 0%, rgba(217, 238, 243, .85), transparent 60%),
    var(--paper-raise);
  border-top: 1px solid var(--line);
}

.page-home .support-grid {
  display: grid;
  gap: .9rem;
}

.page-home .support-card {
  padding: 1.1rem 1.1rem 1.2rem;
  background: var(--paper-raise);
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.page-home .support-card-lake {
  border-top-color: var(--lake);
  background: var(--lake-pale);
}

.page-home .support-title {
  margin: 0 0 .5rem;
  font-size: 1.03rem;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--lake-deep);
}

.page-home .support-text {
  margin: 0 0 .8rem;
  font-size: .88rem;
  line-height: 1.74;
  color: var(--ink-soft);
}

.page-home .support-lines {
  margin: 0 0 .9rem;
  font-size: .88rem;
  line-height: 1.9;
  color: var(--ink);
  word-break: break-word;
}

.page-home .support-key {
  display: inline-block;
  min-width: 2.6rem;
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--lake);
}

.page-home .support-note {
  margin-top: 1.1rem;
  font-size: .85rem;
  line-height: 1.78;
}

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

  .page-home .mini-card-accent {
    grid-column: span 2;
  }

  .page-home .hero-stats .stat-cell {
    padding: 1rem 1rem;
  }

  .page-home .log-item summary {
    font-size: .96rem;
  }
}

/* 桌面 */
@media (min-width: 960px) {
  .page-home .board-shell {
    grid-template-columns: minmax(0, 1fr) var(--home-rail-w);
    align-items: start;
    gap: clamp(1.4rem, 2.6vw, 2.4rem);
  }

  .page-home .board-rail {
    position: sticky;
    top: var(--home-sticky-top);
    order: 0;
  }

  .page-home .index-list {
    flex-direction: column;
    overflow-x: visible;
    gap: .3rem;
  }

  .page-home .index-link {
    width: 100%;
    justify-content: flex-start;
    border-color: transparent;
    background: transparent;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    padding: .5rem .6rem;
  }

  .page-home .index-link:hover,
  .page-home .index-link:focus-visible {
    background: var(--paper);
    border-color: var(--line);
    border-left-color: var(--orange);
  }

  .page-home .index-link[aria-current="true"] {
    background: var(--lake-pale);
    border-color: var(--line-lake);
    border-left-color: var(--lake);
  }

  .page-home .rail-cta {
    display: inline-flex;
  }

  .page-home .focus-card {
    min-height: 27rem;
  }

  .page-home .focus-body {
    padding: 2rem 2.2rem;
    background: linear-gradient(100deg, rgba(7, 59, 76, .96) 42%, rgba(7, 59, 76, .55) 78%, rgba(7, 59, 76, .18) 100%);
  }

  .page-home .focus-text {
    max-width: 44ch;
  }

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

  .page-home .mini-card-accent {
    grid-column: auto;
  }

  .page-home .entries-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: 1.6rem;
  }

  .page-home .entries-media {
    position: sticky;
    top: calc(var(--home-sticky-top) + 1rem);
  }

  .page-home .path-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
    gap: 1.6rem;
  }

  .page-home .step-list {
    gap: .7rem;
  }

  .page-home .step {
    padding: 1.05rem 1.15rem 1.05rem 1.2rem;
  }

  .page-home .log-banner {
    margin-bottom: 1.4rem;
  }

  .page-home .log-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .75rem;
  }

  .page-home .support-grid {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    gap: 1.1rem;
  }

  .page-home .support-card {
    padding: 1.4rem 1.5rem 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .mini-card,
  .page-home .entry,
  .page-home .index-link,
  .page-home .log-item {
    transition: none;
  }

  .page-home .mini-card:hover,
  .page-home .entry:hover {
    transform: none;
  }
}
<<<END>>>