.page-home {
  --home-line: var(--line);
  --home-card: #ffffff;
  --home-gap: clamp(14px, 1.6vw, 20px);
  --home-radius: var(--radius);
  --home-shadow: var(--shadow-1);
  color: var(--ink);
}

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

.page-home a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--paper);
  padding-top: clamp(26px, 4.5vw, 60px);
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  right: -12vw;
  top: 8vh;
  width: 38vw;
  height: 38vw;
  border: 1px solid rgba(143, 220, 216, 0.22);
  border-radius: 50%;
  pointer-events: none;
}

.page-home .home-hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
  padding-bottom: clamp(28px, 4.5vw, 56px);
  position: relative;
  z-index: 1;
}

.page-home .hero-context {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-home .hero-title {
  margin: 0 0 20px;
  font-size: clamp(2.3rem, 6vw, 4.2rem);
  font-weight: 200;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-home .hero-lede {
  margin: 0 0 26px;
  max-width: 50ch;
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.8;
  color: rgba(247, 249, 252, 0.8);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.page-home .hero-stamp {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-home .hero-visual {
  display: grid;
  gap: 12px;
  align-items: start;
}

.page-home .hero-tile {
  display: grid;
  gap: 8px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--navy-2);
  border: 1px solid rgba(143, 220, 216, 0.26);
  border-radius: var(--home-radius);
  color: var(--paper);
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .hero-tile:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
}

.page-home .hero-tile .tile-index {
  font-size: 12px;
  color: var(--orange);
  letter-spacing: 0.14em;
}

.page-home .hero-tile .tile-title {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 700;
  line-height: 1.3;
}

.page-home .hero-tile .tile-desc {
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(247, 249, 252, 0.78);
}

.page-home .hero-tile .tile-meta {
  font-size: 12px;
  color: var(--cyan);
}

.page-home .hero-figure {
  margin: 0;
  padding: 8px;
  background: var(--navy-3);
  border: 1px solid rgba(247, 249, 252, 0.16);
}

.page-home .hero-figure .figure-frame {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.page-home .hero-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .hero-figure .figure-cap {
  padding: 8px 4px 2px;
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 章节索引轨 ---------- */
.page-home .chapter-rail {
  border-top: 1px solid rgba(247, 249, 252, 0.16);
  background: var(--navy-3);
}

.page-home .chapter-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-home .chapter-list li {
  border-right: 1px solid rgba(247, 249, 252, 0.1);
  border-bottom: 1px solid rgba(247, 249, 252, 0.1);
}

.page-home .chapter-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px clamp(12px, 1.6vw, 20px);
  font-size: 0.88rem;
  color: rgba(247, 249, 252, 0.72);
  text-decoration: none;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-home .chapter-link .mono {
  font-size: 11px;
  color: var(--orange);
  letter-spacing: 0.1em;
}

.page-home .chapter-link:hover {
  color: var(--paper);
  background: rgba(143, 220, 216, 0.08);
}

/* ---------- 通用区块头 ---------- */
.page-home .section-head {
  display: grid;
  gap: 12px;
}

.page-home .section-title {
  margin: 0;
  color: var(--navy);
  line-height: 1.2;
}

.page-home .lede {
  margin: 0;
  color: var(--gray);
  line-height: 1.8;
  max-width: 62ch;
}

.page-home .eyebrow {
  margin: 0;
  color: var(--orange);
  letter-spacing: 0.16em;
  font-size: 12px;
}

/* ---------- 入口速览 ---------- */
.page-home .status-section {
  background: var(--paper);
}

.page-home .status-board {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .status-cell {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: clamp(16px, 2vw, 24px);
  background: var(--home-card);
  border-top: 2px solid var(--cyan);
}

.page-home .status-cell:nth-child(odd) {
  border-top-color: var(--orange);
}

.page-home .status-label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
}

.page-home .status-value {
  font-size: clamp(1.45rem, 2.4vw, 1.95rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy);
}

.page-home .status-note {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--gray);
}

.page-home .search-hint {
  margin-top: clamp(18px, 2.4vw, 26px);
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2.2vw, 26px);
  background: var(--home-card);
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--orange);
}

.page-home .search-hint-title {
  margin: 0 0 8px;
  font-weight: 700;
  color: var(--navy);
}

.page-home .search-hint-text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-home .search-hint-text a {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

/* ---------- 产品线目录 ---------- */
.page-home .catalog-section {
  background: var(--home-card);
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
}

.page-home .catalog-lede {
  max-width: 48ch;
}

.page-home .catalog-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-home .product-tile {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--home-card);
  border: 1px solid var(--home-line);
  border-radius: var(--home-radius);
  box-shadow: var(--home-shadow);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-home .product-tile:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
  box-shadow: 0 2px 0 rgba(255, 106, 42, 0.12), 0 18px 34px -28px rgba(11, 31, 58, 0.7);
}

.page-home .product-tile .tile-index {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-home .product-tile .tile-title {
  font-size: clamp(1.1rem, 1.7vw, 1.3rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}

.page-home .product-tile .tile-desc {
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--gray);
}

.page-home .product-tile .tile-meta {
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--navy-2);
  padding-top: 6px;
  border-top: 1px solid var(--home-line);
}

.page-home .product-tile--lead {
  background: var(--navy);
  border-color: var(--navy-2);
}

.page-home .product-tile--lead:hover {
  border-color: var(--orange);
}

.page-home .product-tile--lead .tile-title {
  color: var(--paper);
}

.page-home .product-tile--lead .tile-desc {
  color: rgba(247, 249, 252, 0.78);
}

.page-home .product-tile--lead .tile-meta {
  color: var(--cyan);
  border-top-color: rgba(247, 249, 252, 0.18);
}

.page-home .catalog-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-home .catalog-figure .figure-frame {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--home-line);
  background: var(--paper);
}

.page-home .catalog-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .catalog-figure .figure-cap {
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray);
}

/* ---------- 服务步骤 ---------- */
.page-home .service-section {
  background: var(--paper);
}

.page-home .service-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(22px, 3vw, 32px);
}

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

.page-home .service-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 4px;
  border-bottom: 1px solid var(--home-line);
  font-size: 1rem;
  color: var(--navy);
  font-weight: 500;
}

.page-home .service-num {
  font-size: 11.5px;
  color: var(--orange);
  letter-spacing: 0.1em;
}

.page-home .service-body {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-home .service-text {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--gray);
}

.page-home .service-body .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 案例合集 ---------- */
.page-home .case-section {
  background: linear-gradient(180deg, rgba(143, 220, 216, 0.16), rgba(247, 249, 252, 0.9) 62%);
  border-top: 1px solid var(--home-line);
}

.page-home .case-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(20px, 2.6vw, 28px) 0 clamp(18px, 2.4vw, 24px);
  padding: 0;
}

.page-home .case-tag {
  padding: 6px 13px;
  font-size: 0.82rem;
  color: var(--navy);
  background: var(--home-card);
  border: 1px solid var(--home-line);
  border-radius: 999px;
}

.page-home .case-tag--on {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
  font-weight: 600;
}

.page-home .case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .case-card {
  padding: clamp(18px, 2.4vw, 24px);
  background: var(--home-card);
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--navy-2);
  border-radius: var(--home-radius);
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-home .case-card-meta {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-home .case-card-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.4;
}

.page-home .case-card-text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--gray);
}

.page-home .case-export {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(18px, 2.4vw, 24px);
  background: rgba(255, 179, 138, 0.24);
  border: 1px solid var(--orange-soft);
  border-radius: var(--home-radius);
}

.page-home .case-export-eyebrow {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--navy);
}

.page-home .case-export-text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--navy);
}

.page-home .case-export .btn {
  justify-self: start;
  margin-top: 4px;
}

.page-home .case-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-home .case-figure .figure-frame {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--home-line);
  background: var(--home-card);
}

.page-home .case-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .case-figure .figure-cap {
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray);
}

/* ---------- 首次注册 ---------- */
.page-home .start-section {
  background: var(--home-card);
  border-top: 1px solid var(--home-line);
}

.page-home .step-list {
  list-style: none;
  counter-reset: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .step-item {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(16px, 2vw, 22px);
  background: var(--home-card);
}

.page-home .step-num {
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--orange);
  line-height: 1;
}

.page-home .step-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
}

.page-home .step-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 下载指引 ---------- */
.page-home .download-section {
  background: var(--navy-2);
  color: var(--paper);
  border-top: 1px solid var(--navy-3);
}

.page-home .download-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-home .download-figure {
  margin: 0;
  grid-row: 1;
}

.page-home .download-figure .figure-frame {
  aspect-ratio: 10 / 3;
  overflow: hidden;
  border: 1px solid rgba(247, 249, 252, 0.2);
  background: var(--navy-3);
}

.page-home .download-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .download-figure .figure-cap {
  margin-top: 8px;
  font-size: 12px;
  color: var(--cyan);
}

.page-home .download-body {
  display: grid;
  gap: 14px;
  align-content: start;
  grid-row: 2;
}

.page-home .download-eyebrow {
  margin: 0;
  color: var(--cyan);
}

.page-home .download-title {
  margin: 0;
  color: var(--paper);
}

.page-home .download-text {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(247, 249, 252, 0.8);
}

.page-home .download-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(247, 249, 252, 0.18);
  border: 1px solid rgba(247, 249, 252, 0.18);
}

.page-home .download-list li {
  padding: 12px 16px;
  background: var(--navy-2);
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(247, 249, 252, 0.82);
}

.page-home .download-list .mono {
  display: inline-block;
  min-width: 5.6em;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-home .download-body .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 信任块 ---------- */
.page-home .trust-section {
  background: var(--paper);
}

.page-home .trust-grid {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--home-line);
  border: 1px solid var(--home-line);
}

.page-home .trust-item {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: clamp(16px, 2vw, 22px);
  background: var(--home-card);
}

.page-home .trust-num {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.1;
  font-family: var(--font-mono);
}

.page-home .trust-label {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--gray);
}

.page-home .trust-note {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--gray);
  max-width: 68ch;
}

.page-home .trust-note a {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-underline-offset: 3px;
}

/* ---------- 后续入口 ---------- */
.page-home .next-section {
  background: var(--home-card);
  border-top: 1px solid var(--home-line);
}

.page-home .next-title {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
}

.page-home .next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .next-card {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--home-line);
  border-radius: var(--home-radius);
  background: var(--paper);
  text-decoration: none;
  color: var(--ink);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-home .next-card:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
  background: var(--home-card);
}

.page-home .next-card-index {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-home .next-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
}

.page-home .next-card-text {
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-home .chapter-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

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

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

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

  .page-home .hero-visual {
    margin-top: 8px;
  }

  .page-home .section-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(18px, 3vw, 40px);
  }

  .page-home .section-head > .lede,
  .page-home .section-head > .catalog-lede {
    justify-self: end;
    max-width: 42ch;
  }

  .page-home .status-head,
  .page-home .catalog-head {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-home .service-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

  .page-home .case-export {
    grid-column: span 3;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 22px;
  }

  .page-home .case-export .case-export-eyebrow {
    grid-column: 1;
  }

  .page-home .case-export .case-export-text {
    grid-column: 1;
  }

  .page-home .case-export .btn {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
  }

  .page-home .step-list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-home .download-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .page-home .download-figure {
    grid-column: 1;
    grid-row: 1;
  }

  .page-home .download-body {
    grid-column: 2;
    grid-row: 1;
  }

  .page-home .trust-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-home .chapter-list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .status-board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-home .catalog-grid .product-tile--lead {
    grid-column: span 2;
  }

  .page-home .catalog-grid .product-tile--lead .tile-desc {
    max-width: 46ch;
  }

  .page-home .hero-tile {
    margin-right: -18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-tile,
  .page-home .product-tile,
  .page-home .next-card {
    transition: none;
  }

  .page-home .hero-tile:hover,
  .page-home .product-tile:hover,
  .page-home .next-card:hover {
    transform: none;
  }
}