.page-home {
  --home-gutter: clamp(1.25rem, 4vw, 3.5rem);
  --home-title: clamp(3.5rem, 9vw, 9.5rem);
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
}

.page-home .container {
  margin-inline: auto;
  max-width: var(--maxw);
  padding-inline: var(--home-gutter);
}

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

.page-home [id] {
  scroll-margin-top: 2rem;
}

/* ========== 顶部索引线 ========== */
.page-home__topline {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem 1rem;
  padding: 0.85rem var(--home-gutter);
  border-bottom: 1px solid var(--line);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-home__topline-route {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-weight: 600;
}

.page-home__topline-route::before {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

/* ========== 首屏 ========== */
.page-home__hero {
  position: relative;
  padding-block: clamp(3.5rem, 9vw, 7rem) clamp(2.5rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(rgba(30, 74, 107, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 74, 107, 0.04) 1px, transparent 1px);
  background-size: 34px 34px;
}

.page-home__hero-inner {
  position: relative;
}

.page-home__hero-grid,
.page-home__hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

.page-home__hero-meta {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
}

.page-home__hero-meta-num {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.page-home__hero-title {
  margin: 0;
  font-size: var(--home-title);
  font-weight: 200;
  letter-spacing: -0.05em;
  line-height: 0.92;
}

.page-home__hero-brand {
  display: block;
  font-size: 0.22em;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--blue);
  margin-bottom: 0.7em;
}

.page-home__hero-slogan {
  display: block;
  font-weight: 300;
  background-image: linear-gradient(to right, rgba(201, 160, 99, 0.22), rgba(201, 160, 99, 0.22));
  background-repeat: no-repeat;
  background-size: 100% 0;
  background-position: 0 82%;
  transition: background-size 0.28s ease;
}

.page-home__hero-slogan:hover,
.page-home__hero-slogan:focus-visible {
  background-size: 100% 34%;
}

.page-home__hero-lede {
  font-size: 1.0625rem;
  line-height: 1.85;
  max-width: 30em;
  color: var(--ink);
  margin: 0;
}

.page-home__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-home .btn,
.page-home .btn--ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--blue);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-home .btn--ghost {
  background: transparent;
  color: var(--blue);
}

.page-home .btn--ghost:hover {
  background: var(--blue);
  color: var(--paper);
}

.page-home .btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.page-home__hero-visual {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--paper);
  position: relative;
}

.page-home__hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home__hero-visual-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home__hero-visual-caption::after {
  content: "十 13";
  color: var(--gold);
  font-weight: 700;
}

.page-home__hero-ring {
  display: none;
  position: absolute;
  top: 0.5rem;
  right: 0;
  width: 120px;
  height: 120px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  opacity: 0.8;
  pointer-events: none;
  z-index: 0;
}

.page-home__hero-ring::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid var(--blue);
  border-radius: 50%;
  opacity: 0.45;
}

.page-home__hero-ring::after {
  content: "";
  position: absolute;
  inset: 36px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  opacity: 0.6;
}

/* ========== 编号章节标题 ========== */
.page-home__section-head {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  margin-bottom: 2rem;
}

.page-home__section-index {
  flex: 0 0 auto;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.03em;
}

.page-home__section-titles {
  border-left: 1px solid var(--line);
  padding-left: 1rem;
}

.page-home__section-title {
  margin: 0;
  position: relative;
  font-size: clamp(1.4rem, 2.6vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.page-home__section-title::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 2px;
  background: var(--gold);
  margin-bottom: 0.5rem;
}

.page-home__section-note {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ========== 服务清单与更新记录 ========== */
.page-home__duo {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.page-home__duo-grid {
  display: grid;
  gap: 1.75rem;
}

.page-home__card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: 0 10px 24px -18px var(--shadow);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-home__card:hover,
.page-home__card:focus-within {
  box-shadow: 0 18px 34px -20px var(--shadow);
}

.page-home__card--services:hover,
.page-home__card--services:focus-within {
  border-color: var(--gold);
}

.page-home__card--updates {
  background: linear-gradient(160deg, #FAF5EB 0%, var(--paper) 60%);
  box-shadow: 0 18px 34px -20px var(--shadow), 0 2px 0 var(--wash);
  border-color: var(--line);
}

.page-home__card--updates:hover,
.page-home__card--updates:focus-within {
  border-color: var(--blue);
}

.page-home__card-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
}

.page-home .tag,
.page-home .tag--gold {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  padding: 0.35em 0.7em;
  border-radius: 0;
  line-height: 1;
}

.page-home__card-title {
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 0.55rem;
}

.page-home__card-text {
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0 0 1.25rem;
  max-width: 40em;
}

.page-home__service-list,
.page-home__update-list {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home__service-list li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.58rem 0.25rem;
  border-bottom: 1px dashed var(--line);
  font-size: 0.9375rem;
}

.page-home__service-num {
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  width: 1.7em;
  flex: 0 0 auto;
}

.page-home__card--services:hover .page-home__service-num,
.page-home__card--services:focus-within .page-home__service-num {
  color: var(--ink);
}

.page-home__update-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.8rem;
  padding: 0.65rem 0.25rem;
  border-bottom: 1px solid var(--line);
}

.page-home__update-list li:last-child {
  border-bottom: none;
}

.page-home__update-tag {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  border: 1px solid var(--line);
  padding: 0.24em 0.55em;
  line-height: 1;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.page-home__card[data-active] .page-home__update-tag {
  border-color: rgba(201, 160, 99, 0.55);
  color: var(--gold);
}

.page-home__card--updates:hover .page-home__update-tag,
.page-home__card--updates:focus-within .page-home__update-tag {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(201, 160, 99, 0.08);
}

.page-home__update-text {
  font-size: 0.9375rem;
  color: var(--ink);
}

.page-home__card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  color: var(--blue);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, gap 0.2s ease;
}

.page-home__card-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.page-home__card-link:hover {
  border-bottom-color: currentColor;
}

.page-home__card-link:hover::after {
  transform: translateX(3px);
}

/* ========== 平板资料库与收藏夹导出 ========== */
.page-home__tools {
  padding-block: clamp(3.5rem, 7vw, 6rem);
  background: var(--wash);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home__tools-grid {
  display: grid;
  gap: 1.75rem;
}

.page-home__tool-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-home__tool-card:hover,
.page-home__tool-card:focus-within {
  border-color: var(--gold);
  box-shadow: 0 20px 36px -22px var(--shadow);
}

.page-home__tool-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  display: block;
}

.page-home__tool-body {
  padding: clamp(1.2rem, 2.5vw, 1.6rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.page-home__tool-title {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}

.page-home__tool-text {
  color: var(--muted);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0 0 1rem;
}

.page-home__steps {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
  counter-reset: page-home-step;
  display: grid;
  gap: 0.4rem;
}

.page-home__steps li {
  counter-increment: page-home-step;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--ink);
}

.page-home__steps li::before {
  content: counter(page-home-step, decimal-leading-zero);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gold);
  border: 1px solid var(--line);
  padding: 0.2em 0.4em;
  line-height: 1;
  flex: 0 0 auto;
}

/* ========== 数据规模与信任 ========== */
.page-home__trust {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.page-home__trust-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-home__trust-intro {
  max-width: 34em;
}

.page-home__trust-text {
  color: var(--muted);
  line-height: 1.85;
  font-size: 1rem;
  margin: 1.2rem 0 1.6rem;
}

.page-home__trust-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-home__trust-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home__stat {
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 0.4rem;
  min-height: 8.5rem;
  padding: 1.4rem;
}

.page-home__stat-num {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  font-weight: 200;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--ink);
}

.page-home__stat-label {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-home__trust-chart {
  margin: 2rem 0 0;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0.5rem;
}

.page-home__trust-chart img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home__trust-chart-caption {
  padding: 0.75rem 1rem 0.5rem;
  border-top: 1px dashed var(--line);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ========== 响应式断点 ========== */
@media (min-width: 720px) {
  .page-home__tool-card {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-home__tool-card img {
    height: 100%;
    aspect-ratio: auto;
    object-fit: cover;
  }
}

@media (min-width: 900px) {
  .page-home__duo-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-home__card--updates {
    margin-top: 3.5rem;
  }

  .page-home__trust-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  }
}

@media (min-width: 960px) {
  .page-home__hero-grid,
  .page-home__hero-inner {
    grid-template-columns: repeat(12, 1fr);
    gap: 1.75rem 2rem;
  }

  .page-home__hero-meta {
    grid-column: 1 / 2;
    grid-row: 1 / 4;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
    border-left: 1px solid var(--line);
    padding-left: 0.85rem;
  }

  .page-home__hero-title {
    grid-column: 2 / 10;
    grid-row: 1;
  }

  .page-home__hero-lede {
    grid-column: 2 / 6;
    grid-row: 2;
    align-self: end;
    margin-bottom: 1.25rem;
  }

  .page-home__hero-actions {
    grid-column: 2 / 6;
    grid-row: 3;
    align-self: start;
  }

  .page-home__hero-visual {
    grid-column: 7 / 13;
    grid-row: 2 / 4;
    align-self: start;
  }

  .page-home__hero-ring {
    display: block;
    top: -1rem;
    right: 1.5rem;
  }

  .page-home__tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}