.page-home {
  display: block;
  overflow-x: clip;
  background: var(--ink-deep);
  color: var(--white);
  font-family: var(--font-body);
}

.page-home .shell {
  padding-left: 20px;
  padding-right: 20px;
}

/* ---------- 封面首屏 ---------- */

.page-home .home-hero {
  position: relative;
  isolation: isolate;
  padding: 96px 0 112px;
  background:
    radial-gradient(115% 85% at 86% 4%, rgba(43, 231, 224, 0.18), transparent 58%),
    radial-gradient(85% 65% at 2% 98%, rgba(255, 61, 139, 0.14), transparent 62%),
    linear-gradient(180deg, #05091c 0%, var(--ink-deep) 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 72px), 0 100%);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(159, 179, 217, 0.055) 0 1px,
    transparent 1px 5px
  );
}

.page-home .home-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.page-home .home-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--white);
}

.page-home .home-hero-lead {
  margin: 20px 0 0;
  max-width: 36em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.page-home .home-hero-media {
  margin: 0;
  border: 1px solid var(--line-cyan);
  box-shadow: 0 0 44px rgba(43, 231, 224, 0.16);
}

.page-home .home-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.page-home .home-index-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(19, 26, 69, 0.62);
  color: var(--white);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 200ms var(--ease), color 200ms var(--ease);
}

.page-home .home-index-item .mono {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-home .home-index-item:hover,
.page-home .home-index-item:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 按情况挑入口 ---------- */

.page-home .home-entry {
  background: linear-gradient(180deg, var(--ink-deep) 0%, #070c24 100%);
}

.page-home .home-entry .filter-bar {
  margin-top: 28px;
}

.page-home .home-entry-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.page-home .home-entry-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 24px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--panel-top), var(--panel-btm));
  color: var(--white);
  text-decoration: none;
  transition: transform 220ms var(--ease), border-color 220ms var(--ease), box-shadow 220ms var(--ease);
}

.page-home .home-entry-card:hover,
.page-home .home-entry-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--line-cyan);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(43, 231, 224, 0.18);
}

.page-home .home-entry-meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-home .home-entry-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--white);
}

.page-home .home-entry-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .home-entry-grid .filter-empty {
  margin: 0;
  padding: 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--muted);
}

/* ---------- 平台概览板 ---------- */

.page-home .home-board {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: #070c24;
}

.page-home .home-board-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.page-home .home-board-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.09;
  filter: saturate(0.55);
}

.page-home .home-bento {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.page-home .home-cell {
  position: relative;
  padding: 30px 24px 26px;
  overflow: hidden;
}

.page-home .home-cell > .paper-label {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

.page-home .home-cell-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(42px, 7vw, 68px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--gold);
}

.page-home .home-cell-title {
  margin: 6px 0 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
}

.page-home .home-cell-sub {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-home .home-cell-text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-more {
  margin-top: 16px;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}

.page-home .home-more summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
  list-style: none;
}

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

.page-home .home-more summary::after {
  content: " +";
  font-family: var(--font-mono);
}

.page-home .home-more[open] summary::after {
  content: " −";
}

.page-home .home-more p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-cell--d-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.page-home .home-cell-d-media {
  border: 1px solid var(--line-cyan);
}

.page-home .home-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 231, 224, 0.4);
  padding-bottom: 2px;
}

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

/* ---------- 设备要求 ---------- */

.page-home .home-spec {
  background: linear-gradient(180deg, #070c24 0%, var(--ink-deep) 100%);
}

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

.page-home .home-spec-text {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-spec-list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .home-spec-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-home .home-spec-list .mono {
  min-width: 84px;
  font-size: 15px;
  color: var(--cyan);
}

.page-home .home-spec-copy .btn {
  margin-top: 28px;
}

.page-home .home-spec-media {
  margin: 0;
  border: 1px solid var(--line);
}

.page-home .home-tier-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.page-home .home-tier {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 26px 22px 24px;
  border-top: 3px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-home .home-tier--std {
  border-top-color: var(--gold);
}

.page-home .home-tier--high {
  border-top-color: var(--magenta);
}

.page-home .home-tier-spec {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-home .home-tier-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 三步上手 ---------- */

.page-home .home-step-list {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-home .home-step {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 30px 24px 26px;
}

.page-home .home-step-num {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-home .home-step-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  color: var(--white);
}

.page-home .home-step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-step-hint {
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .home-step-hint .tag {
  margin-right: 8px;
}

/* ---------- 最近在更新 ---------- */

.page-home .home-updates {
  background: linear-gradient(180deg, var(--ink-deep) 0%, #070c24 100%);
}

.page-home .home-update-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.page-home .home-update-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 24px 22px;
}

.page-home .home-update-card .card-meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--magenta);
}

.page-home .home-update-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-update-card .home-link {
  margin-top: 8px;
}

.page-home .home-updates-more {
  display: inline-block;
  margin-top: 32px;
}

/* ---------- 还有问题 ---------- */

.page-home .home-help-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.page-home .home-help-card {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  justify-items: start;
  padding: 34px 26px 26px;
}

.page-home .home-help-card > .paper-label {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

.page-home .home-help-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
}

.page-home .home-help-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .home-contact-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 24px;
  padding: 24px;
}

.page-home .home-contact-item {
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-home .home-contact-key {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home .home-contact-val {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-home .shell {
    padding-left: 32px;
    padding-right: 32px;
  }

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

  .page-home .home-update-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1024px) {
  .page-home .shell {
    padding-left: 48px;
    padding-right: 48px;
  }

  .page-home .home-hero {
    padding: 132px 0 148px;
  }

  .page-home .home-hero-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 56px;
    align-items: center;
  }

  .page-home .home-hero-media {
    transform: translateY(-14px);
  }

  .page-home .home-entry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-home .home-bento {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-template-areas:
      "a a a a b b"
      "a a a a c c"
      "d d d d d d";
    gap: 24px;
  }

  .page-home .home-cell--a { grid-area: a; }
  .page-home .home-cell--b { grid-area: b; }
  .page-home .home-cell--c { grid-area: c; }
  .page-home .home-cell--d { grid-area: d; }

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

  .page-home .home-spec-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
  }

  .page-home .home-tier-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-home .home-step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-home .home-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46px;
    right: -24px;
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, var(--cyan), transparent);
    pointer-events: none;
  }

  .page-home .home-update-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 1280px) {
  .page-home .shell {
    padding-left: 64px;
    padding-right: 64px;
  }
}

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

  .page-home .home-entry-card:hover,
  .page-home .home-entry-card:focus-visible {
    transform: none;
  }

  .page-home .home-hero-media {
    transform: none;
  }
}