/* ===== 前瞻与数据中心 /projects/ 页面专属样式 ===== */

.page-products {
  --pp-rail-w: 208px;
  --pp-accent: var(--hh-blue);
  --pp-gap: clamp(1.75rem, 4vw, 3.25rem);
  --pp-soft: rgba(244, 247, 251, 0.06);
  position: relative;
  overflow-x: clip;
}

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

/* ---------- 面包屑 ---------- */
.page-products > .hh-breadcrumb {
  padding-top: clamp(1rem, 3vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  padding-block: clamp(1.5rem, 4vw, 3rem) 0;
  background:
    radial-gradient(72% 130% at 80% 0%, rgba(46, 125, 209, 0.24), transparent 66%),
    radial-gradient(52% 96% at 6% 4%, rgba(255, 122, 61, 0.10), transparent 72%);
}

.page-products .pp-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.page-products .pp-hero__title {
  margin: 0.5rem 0 1rem;
  font-family: var(--hh-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.05;
  font-size: clamp(1.9rem, 6.6vw, 4.4rem);
}

.page-products .pp-hero__line {
  display: block;
}

.page-products .pp-hero__line--dim {
  color: var(--hh-silver);
  font-size: 0.62em;
  letter-spacing: -0.01em;
  margin-top: 0.28em;
}

.page-products .pp-hero__lead {
  max-width: 46ch;
  color: var(--hh-ink-dim);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-products .pp-hero__media {
  margin: 0;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  overflow: hidden;
  background: linear-gradient(155deg, rgba(11, 27, 58, 0.95), rgba(7, 17, 38, 0.98));
}

.page-products .pp-hero__media .hh-media__img img {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-products .hh-media__caption {
  padding: 0.7rem 1rem 0.85rem;
  font-size: 0.8125rem;
  color: var(--hh-ink-mute);
  border-top: 1px solid var(--hh-line);
}

/* 首屏数据条 */
.page-products .pp-hero__strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  background: var(--hh-line);
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  overflow: hidden;
}

.page-products .pp-fact {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.95rem 1.05rem 1.1rem;
  background: var(--hh-glass);
}

.page-products .pp-fact__num {
  font-family: var(--hh-mono);
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--hh-snow);
}

.page-products .pp-fact:nth-child(2) .pp-fact__num { color: var(--hh-yellow); }
.page-products .pp-fact:nth-child(3) .pp-fact__num { color: var(--hh-blue); }
.page-products .pp-fact:nth-child(4) .pp-fact__num { color: var(--hh-orange); }

.page-products .pp-fact__label {
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--hh-ink-mute);
}

/* ---------- 左索引 + 右内容 ---------- */
.page-products .pp-layout {
  display: grid;
  gap: var(--pp-gap);
  padding-block: clamp(2.25rem, 6vw, 4rem) clamp(3rem, 8vw, 5.5rem);
}

.page-products .pp-rail {
  min-width: 0;
  border-top: 2px solid var(--hh-blue);
  padding-top: 0.85rem;
}

.page-products .pp-rail__title {
  margin: 0 0 0.65rem;
  font-family: var(--hh-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--hh-ink-mute);
}

.page-products .pp-rail__list {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0 0 0.4rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .pp-rail__item {
  flex: 0 0 auto;
}

.page-products .pp-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  color: var(--hh-ink-dim);
  text-decoration: none;
  font-size: 0.875rem;
  white-space: nowrap;
  transition: border-color 0.2s var(--hh-ease), color 0.2s var(--hh-ease), background 0.2s var(--hh-ease);
}

.page-products .pp-rail__link:hover,
.page-products .pp-rail__link:focus-visible {
  color: var(--hh-snow);
  border-color: var(--hh-line-strong);
  background: var(--hh-glass);
}

.page-products .pp-rail__idx {
  font-family: var(--hh-mono);
  font-size: 0.6875rem;
  color: var(--hh-blue);
}

.page-products .pp-rail__note {
  margin: 0.9rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--hh-ink-mute);
}

/* ---------- 章节通用 ---------- */
.page-products .pp-flow {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.page-products .pp-sec {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--hh-line);
}

.page-products .pp-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pp-sec__head h2 {
  margin: 0.4rem 0 0;
  font-family: var(--hh-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-size: clamp(1.45rem, 3.6vw, 2.35rem);
}

.page-products .pp-sec__lead {
  max-width: 62ch;
  margin: 1rem 0 0;
  color: var(--hh-ink-dim);
  line-height: 1.75;
}

.page-products .pp-sec__foot {
  margin: 1.75rem 0 0;
  padding-left: 0.9rem;
  border-left: 2px solid var(--hh-green);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--hh-ink-dim);
}

.page-products .pp-sub {
  margin: 0 0 0.85rem;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.3;
}

.page-products .hh-hint {
  margin: 1rem 0 0;
  color: var(--hh-ink-mute);
}

/* ---------- 三块资料卡 ---------- */
.page-products .pp-cards {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-products .pp-card {
  padding: 1.15rem 1.15rem 1.35rem;
  background: var(--pp-soft);
  border: 1px solid var(--hh-line);
  border-left: 3px solid var(--pp-accent);
  border-radius: var(--hh-radius);
}

.page-products .pp-card:nth-child(1) { --pp-accent: var(--hh-blue); }
.page-products .pp-card:nth-child(2) { --pp-accent: var(--hh-yellow); }
.page-products .pp-card:nth-child(3) { --pp-accent: var(--hh-red); }

.page-products .pp-card__idx {
  margin: 0 0 0.5rem;
  font-family: var(--hh-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--pp-accent);
}

.page-products .pp-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-products .pp-card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--hh-ink-dim);
}

/* ---------- 图文并排 ---------- */
.page-products .pp-split {
  display: grid;
  gap: clamp(1.15rem, 3vw, 2rem);
  align-items: center;
  margin-top: 1.75rem;
}

.page-products .pp-split__media {
  margin: 0;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  overflow: hidden;
  background: linear-gradient(155deg, rgba(11, 27, 58, 0.9), rgba(7, 17, 38, 0.98));
}

.page-products .pp-split__media .hh-media__img img {
  display: block;
  width: 100%;
  object-fit: cover;
}

.page-products .pp-split__body {
  min-width: 0;
}

.page-products .hh-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}

.page-products .hh-list__item {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--hh-ink-dim);
}

.page-products .hh-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hh-blue);
}

/* ---------- 标签行 ---------- */
.page-products .pp-tagrow {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  background: var(--hh-glass);
}

.page-products .pp-filterbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--hh-yellow);
}

/* 键值资料 */
.page-products .hh-kv__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--hh-line);
}

.page-products .hh-kv__k {
  flex: 0 0 auto;
  min-width: 6.5em;
  font-size: 0.8125rem;
  color: var(--hh-ink-mute);
  letter-spacing: 0.04em;
}

.page-products .hh-kv__v {
  flex: 1 1 12ch;
  font-size: 0.9375rem;
  color: var(--hh-snow);
}

/* ---------- 时间轴 ---------- */
.page-products .pp-timeline {
  position: relative;
  margin-top: 1.9rem;
  padding-left: 1.6rem;
  display: grid;
  gap: 1.6rem;
}

.page-products .pp-timeline::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 1px;
  background: linear-gradient(180deg, var(--hh-blue), var(--hh-yellow) 55%, var(--hh-red));
  opacity: 0.8;
}

.page-products .pp-tl {
  position: relative;
}

.page-products .pp-tl::before {
  content: "";
  position: absolute;
  left: -1.6rem;
  top: 0.5rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--hh-snow);
  box-shadow: 0 0 0 3px rgba(46, 125, 209, 0.28);
}

.page-products .pp-tl__tag {
  margin: 0 0 0.35rem;
  font-family: var(--hh-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--hh-blue);
}

.page-products .pp-tl__title {
  margin: 0 0 0.45rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-products .pp-tl__text {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--hh-ink-dim);
}

/* ---------- 折叠面板 ---------- */
.page-products .pp-fold {
  margin-top: 1.9rem;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  background: var(--hh-glass);
  overflow: hidden;
}

.page-products .pp-fold .hh-fold__summary {
  padding: 0.95rem 1.1rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--hh-snow);
  cursor: pointer;
}

.page-products .pp-fold .hh-fold__body {
  padding: 0 1.1rem 1.2rem;
}

.page-products .pp-fieldgrid {
  display: grid;
  gap: 0.6rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--hh-line);
}

.page-products .pp-field {
  display: grid;
  gap: 0.2rem;
  padding-left: 0.75rem;
  border-left: 2px solid var(--hh-blue);
}

.page-products .pp-field__k {
  font-family: var(--hh-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--hh-silver);
}

.page-products .pp-field__v {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--hh-ink-dim);
}

.page-products .pp-sec__figure {
  margin: 1.9rem 0 0;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  overflow: hidden;
  background: linear-gradient(155deg, rgba(11, 27, 58, 0.9), rgba(7, 17, 38, 0.98));
}

.page-products .pp-sec__figure .hh-media__img img {
  display: block;
  width: 100%;
  object-fit: cover;
}

/* ---------- 步骤条 ---------- */
.page-products .pp-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
  counter-reset: ppstep;
}

.page-products .pp-steps__item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--hh-ink-dim);
}

.page-products .pp-steps__n {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 50%;
  border: 1px solid var(--hh-line-strong);
  font-family: var(--hh-mono);
  font-size: 0.75rem;
  color: var(--hh-blue);
}

/* ---------- 表格 ---------- */
.page-products .pp-tablewrap {
  margin-top: 1.9rem;
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  overflow-x: auto;
}

.page-products .pp-tablecap {
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--hh-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--hh-ink-mute);
  border-bottom: 1px solid var(--hh-line);
}

/* ---------- 使用场景 ---------- */
.page-products .pp-usecases {
  display: grid;
  gap: 0.85rem;
}

.page-products .pp-usecase {
  padding: 0.85rem 0 0.85rem 0.9rem;
  border-left: 2px solid var(--hh-green);
}

.page-products .pp-usecase__k {
  display: block;
  margin-bottom: 0.3rem;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--hh-snow);
}

.page-products .pp-usecase p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.68;
  color: var(--hh-ink-dim);
}

/* ---------- 更新频率 ---------- */
.page-products .pp-cadence {
  display: grid;
  gap: 1px;
  margin-top: 1.9rem;
  background: var(--hh-line);
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  overflow: hidden;
}

.page-products .pp-cad {
  padding: 1.15rem 1.15rem 1.35rem;
  background: var(--hh-midnight);
}

.page-products .pp-cad__num {
  display: block;
  font-family: var(--hh-mono);
  font-size: clamp(1.4rem, 3.6vw, 1.85rem);
  font-weight: 700;
  line-height: 1;
  color: var(--hh-orange);
}

.page-products .pp-cad:nth-child(2) .pp-cad__num { color: var(--hh-blue); }
.page-products .pp-cad:nth-child(3) .pp-cad__num { color: var(--hh-green); }
.page-products .pp-cad:nth-child(4) .pp-cad__num { color: var(--hh-yellow); }

.page-products .pp-cad__title {
  margin: 0.6rem 0 0.45rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--hh-snow);
}

.page-products .pp-cad p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.66;
  color: var(--hh-ink-dim);
}

/* ---------- 收尾 CTA ---------- */
.page-products .pp-cta {
  margin-top: clamp(2rem, 5vw, 3.5rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--hh-line);
  border-radius: var(--hh-radius);
  background:
    radial-gradient(80% 140% at 100% 0%, rgba(46, 125, 209, 0.22), transparent 62%),
    var(--hh-midnight);
}

.page-products .pp-cta__inner {
  display: grid;
  gap: 1.5rem;
}

.page-products .pp-cta__title {
  margin: 0.4rem 0 0.7rem;
  font-family: var(--hh-display);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
}

.page-products .pp-cta__copy p {
  margin: 0;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--hh-ink-dim);
}

.page-products .pp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-content: start;
}

.page-products .pp-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 1.75rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--hh-line);
  list-style: none;
}

.page-products .pp-cta__link {
  font-size: 0.9375rem;
  color: var(--hh-blue);
  text-decoration: underline;
  text-underline-offset: 0.28em;
  text-decoration-thickness: 1px;
}

.page-products .pp-cta__link:hover,
.page-products .pp-cta__link:focus-visible {
  color: var(--hh-snow);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .pp-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-cadence {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-fieldgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }
  .page-products .pp-hero__strip {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pp-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .page-products .pp-split--rev .pp-split__media {
    order: 2;
  }
  .page-products .pp-split--rev .pp-split__body {
    order: 1;
  }
  .page-products .pp-fieldgrid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1020px) {
  .page-products .pp-layout {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .pp-rail {
    position: sticky;
    top: 5.5rem;
  }
  .page-products .pp-rail__list {
    display: grid;
    gap: 0.35rem;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-products .pp-rail__item {
    flex: 1 1 auto;
  }
  .page-products .pp-rail__link {
    width: 100%;
  }
}

@media (min-width: 1180px) {
  .page-products .pp-cadence {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-rail__link {
    transition: none;
  }
}