.page-home {
  --home-soft: #E7E2D9;
  --home-tint-spring: rgba(217, 140, 154, .12);
  display: block;
  background: var(--canvas);
}

.page-home [id] {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  padding: calc(var(--header-h) + 36px) 0 52px;
  overflow: hidden;
  background:
    radial-gradient(90% 70% at 92% 2%, rgba(217, 140, 154, .26), rgba(217, 140, 154, 0) 68%),
    radial-gradient(70% 60% at 4% 98%, rgba(127, 166, 160, .16), rgba(127, 166, 160, 0) 70%),
    var(--canvas);
}

.page-home .home-hero-inner {
  display: grid;
  gap: 40px;
}

.page-home .home-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 7px 14px 7px 12px;
  border: 1px solid var(--home-soft);
  border-radius: 999px;
  background: rgba(250, 248, 244, .74);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-2);
}

.page-home .home-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--spring);
}

.page-home .home-hero h1 {
  margin: 20px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.6vw, 66px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--ink);
  text-wrap: balance;
}

.page-home .home-lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.1vw + 13px, 18px);
  line-height: 1.9;
  color: var(--ink-2);
}

.page-home .home-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .home-hero-aside {
  display: grid;
  gap: 24px;
}

.page-home .home-hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--home-soft);
  border-radius: 4px;
  overflow: hidden;
  background: var(--paper);
}

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

.page-home .home-hero-figure figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 10px;
  border: 1px solid var(--home-soft);
  border-radius: 2px;
  background: rgba(250, 248, 244, .9);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--spring-ink);
}

.page-home .home-index-label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--ink-2);
}

.page-home .home-hero-index ol {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--home-soft);
}

.page-home .home-hero-index li {
  border-bottom: 1px solid var(--home-soft);
}

.page-home .home-hero-index a {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  align-items: baseline;
  gap: 2px 14px;
  padding: 11px 4px;
  text-decoration: none;
  color: var(--ink);
  transition: background-color .16s var(--ease), padding-left .16s var(--ease);
}

.page-home .home-hero-index .mono {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--spring-ink);
}

.page-home .home-hero-index .t {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
}

.page-home .home-hero-index .d {
  grid-column: 2;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-2);
}

.page-home .home-hero-index a:hover,
.page-home .home-hero-index a:focus-visible {
  background: var(--paper);
  padding-left: 12px;
}

/* ---------- 章节头 ---------- */
.page-home .home-sec-head {
  display: grid;
  gap: 12px;
}

.page-home .home-sec-num {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--ink-2);
}

.page-home .home-sec-num::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.page-home .home-sec-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .home-sec-note {
  margin: 0;
  max-width: 46em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-2);
}

/* ---------- 四季索引带 ---------- */
.page-home .home-seasons {
  padding: 56px 0 60px;
  border-top: 1px solid var(--home-soft);
  background: var(--canvas);
}

.page-home .home-rail-wrap {
  position: relative;
  margin-top: 30px;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 5%, #000 95%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 5%, #000 95%, transparent 100%);
}

.page-home .home-rail-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .16;
  pointer-events: none;
}

.page-home .home-rail {
  position: relative;
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 4px var(--gutter) 20px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-home .home-rail::-webkit-scrollbar {
  height: 6px;
}

.page-home .home-rail::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 999px;
}

.page-home .home-rail-item {
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: min(80vw, 300px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 20px 18px;
  border: 1px solid var(--home-soft);
  border-top: 4px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.page-home .home-rail-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .home-rail-key {
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-2);
}

.page-home .home-rail-desc {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-home .home-rail-meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--home-soft);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--ink-2);
}

.page-home .home-rail-item--spring {
  border-top-color: var(--spring);
}

.page-home .home-rail-item--spring .home-rail-key {
  color: var(--spring-ink);
}

.page-home .home-rail-item--summer {
  border-top-color: var(--summer);
}

.page-home .home-rail-item--summer .home-rail-key {
  color: var(--summer-ink);
}

.page-home .home-rail-item--autumn {
  border-top-color: var(--autumn);
}

.page-home .home-rail-item--autumn .home-rail-key {
  color: var(--autumn-ink);
}

.page-home .home-rail-item--winter {
  border-top-color: var(--winter);
}

.page-home .home-rail-item--winter .home-rail-key {
  color: var(--winter-ink);
}

.page-home .home-rail-item--common {
  border-top-color: var(--ink);
}

.page-home .home-rail-item--common .home-rail-key {
  color: var(--ink-2);
}

.page-home .home-seasons-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  padding-top: 22px;
  border-top: 1px solid var(--home-soft);
}

.page-home .home-seasons-foot p {
  margin: 0;
  max-width: 48ch;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 版本与适配 ---------- */
.page-home .home-version {
  padding: 56px 0 60px;
  border-top: 1px solid var(--home-soft);
  border-bottom: 1px solid var(--home-soft);
  background:
    linear-gradient(180deg, rgba(208, 138, 78, .13), rgba(208, 138, 78, 0) 78%),
    var(--paper);
}

.page-home .home-version-grid {
  display: grid;
  gap: 34px;
}

.page-home .home-version-lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-2);
}

.page-home .home-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 28px 0 0;
  border: 1px solid var(--home-soft);
  background: var(--home-soft);
}

.page-home .home-stat {
  padding: 14px 14px 16px;
  background: var(--paper);
}

.page-home .home-stat dt {
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--ink-2);
}

.page-home .home-stat dd {
  margin: 8px 0 0;
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1;
  color: var(--autumn-ink);
}

.page-home .home-disclosure {
  margin-top: 24px;
  border: 1px solid var(--home-soft);
  border-radius: 3px;
  background: rgba(244, 241, 236, .7);
}

.page-home .home-disclosure summary {
  padding: 14px 16px;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
}

.page-home .home-disclosure .disclosure-body {
  padding: 0 16px 16px;
}

.page-home .home-disclosure ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 1.1em;
}

.page-home .home-disclosure li {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-home .home-version-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 26px;
}

.page-home .home-text-link {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(180, 85, 47, .35);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--mark);
  text-decoration: none;
}

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

.page-home .home-version-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--home-soft);
  border-radius: 4px;
  overflow: hidden;
  background: var(--canvas);
}

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

.page-home .home-version-figure figcaption {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 4px 10px;
  border: 1px solid var(--home-soft);
  border-radius: 2px;
  background: rgba(250, 248, 244, .9);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--autumn-ink);
}

/* ---------- 帮助与公告 ---------- */
.page-home .home-help {
  padding: 56px 0 60px;
  background: var(--canvas);
}

.page-home .home-help-grid {
  display: grid;
  gap: 28px;
  margin-top: 30px;
}

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

.page-home .home-task-list li {
  border-bottom: 1px solid var(--home-soft);
}

.page-home .home-task-list a {
  display: grid;
  grid-template-columns: 3.6em minmax(0, 1fr) 1.4em;
  align-items: start;
  gap: 4px 14px;
  padding: 16px 8px;
  border-left: 2px solid transparent;
  text-decoration: none;
  color: var(--ink);
  transition: background-color .16s var(--ease), border-left-color .16s var(--ease);
}

.page-home .home-task-key {
  padding: 3px 0;
  border: 1px solid rgba(91, 143, 168, .42);
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: .12em;
  text-align: center;
  color: var(--summer-ink);
}

.page-home .home-task-body {
  display: grid;
  gap: 4px;
}

.page-home .home-task-body strong {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
}

.page-home .home-task-body span {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-home .home-task-go {
  font-family: var(--font-mono);
  font-size: 16px;
  text-align: right;
  color: var(--summer-ink);
}

.page-home .home-task-list a:hover,
.page-home .home-task-list a:focus-visible {
  background: var(--paper);
  border-left-color: var(--summer);
}

.page-home .home-help-side {
  padding: 22px 22px 24px;
  border: 1px solid var(--home-soft);
  border-left: 3px solid var(--summer);
  border-radius: 3px;
  background: var(--paper);
}

.page-home .home-help-side-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-home .home-help-side p {
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-home .home-help-side .home-text-link {
  color: var(--summer-ink);
  border-bottom-color: rgba(61, 107, 130, .35);
}

@media (min-width: 620px) {
  .page-home .home-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .home-rail-item {
    width: 300px;
  }

  .page-home .home-rail-item--summer {
    width: 268px;
  }

  .page-home .home-rail-item--autumn {
    width: 330px;
  }

  .page-home .home-rail-item--winter {
    width: 284px;
  }

  .page-home .home-rail-item--common {
    width: 320px;
  }
}

/* ---------- 信任区 ---------- */
.page-home .home-trust {
  padding: 56px 0 68px;
  border-top: 1px solid var(--home-soft);
  background:
    linear-gradient(180deg, rgba(127, 166, 160, .12), rgba(127, 166, 160, 0) 60%),
    var(--canvas);
}

.page-home .home-trust-banner {
  position: relative;
  margin: 30px 0 0;
  border: 1px solid var(--home-soft);
  border-radius: 4px;
  overflow: hidden;
}

.page-home .home-trust-banner img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 260px);
  object-fit: cover;
}

.page-home .home-trust-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(127, 166, 160, .52), rgba(244, 241, 236, .12));
  pointer-events: none;
}

.page-home .home-trust-banner figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 1;
  padding: 4px 10px;
  border-radius: 2px;
  background: rgba(250, 248, 244, .88);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--winter-ink);
}

.page-home .home-proof {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px 18px;
  margin: 30px 0 0;
  padding: 26px 0 0;
  border-top: 1px solid var(--home-soft);
}

.page-home .home-proof dt {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-2);
}

.page-home .home-proof dd {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.4vw, 36px);
  line-height: 1;
  color: var(--ink);
}

.page-home .home-proof dd span {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--ink-2);
}

.page-home .home-trust-foot {
  display: grid;
  gap: 18px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--home-soft);
}

.page-home .home-trust-foot p {
  margin: 0;
  max-width: 52ch;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-home .home-trust-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

@media (min-width: 760px) {
  .page-home .home-proof {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-hero {
    padding: calc(var(--header-h) + 64px) 0 76px;
  }

  .page-home .home-hero-inner {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 64px);
    align-items: start;
    gap: 0;
  }

  .page-home .home-hero-copy {
    grid-column: 1 / span 7;
  }

  .page-home .home-hero-aside {
    grid-column: 9 / span 4;
  }

  .page-home .home-seasons,
  .page-home .home-version,
  .page-home .home-help,
  .page-home .home-trust {
    padding-top: 72px;
    padding-bottom: 80px;
  }

  .page-home .home-version-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
    align-items: center;
  }

  .page-home .home-version-main {
    grid-column: 1 / span 7;
  }

  .page-home .home-version-figure {
    grid-column: 9 / span 4;
  }

  .page-home .home-help-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-home .home-task-list {
    grid-column: 1 / span 7;
  }

  .page-home .home-help-side {
    grid-column: 9 / span 4;
    margin-top: 6px;
  }

  .page-home .home-trust-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1040px) {
  .page-home .home-proof {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-hero-index a,
  .page-home .home-task-list a,
  .page-home .home-text-link {
    transition: none;
  }
}