/* ==========================================================
   规格选型与项目中心 /page-products
   作用域：.page-products
   ========================================================== */

.page-products {
  --pp-spec-line: var(--line);
  --pp-dark-line: rgba(245, 239, 230, 0.18);
}

/* ---------- 首屏：目录与主题声明 ---------- */

.page-products .pp-intro .grid {
  align-items: start;
  row-gap: 44px;
}

.page-products .pp-intro__lead h1 {
  margin-top: 12px;
}

.page-products .pp-index {
  border-top: 1px solid var(--line-strong);
  padding-top: 18px;
}

.page-products .pp-index__title {
  margin: 0 0 10px;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-products .pp-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pp-index__item a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.98rem;
  transition: color 200ms ease-out, transform 200ms ease-out;
}

.page-products .pp-index__item a:hover,
.page-products .pp-index__item a:focus-visible {
  color: var(--deep);
  transform: translateX(4px);
}

.page-products .pp-index__item a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-products .pp-index__num {
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--slate);
  flex: 0 0 auto;
}

.page-products .pp-intro__strip {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .pp-fact {
  background: var(--linen);
  padding: 22px 20px;
}

.page-products .pp-fact__num {
  display: block;
  font-size: clamp(2rem, 7vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--deep);
}

.page-products .pp-fact__label {
  display: block;
  margin-top: 10px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 选型起点：三道题 ---------- */

.page-products .pp-questions {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-products .pp-question {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "num"
    "title"
    "body"
    "to";
  row-gap: 10px;
  padding: 30px 0 32px;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-question__num {
  grid-area: num;
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-products .pp-question__title {
  grid-area: title;
  margin: 0;
  font-size: clamp(1.15rem, 3.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--deep);
  max-width: 30ch;
}

.page-products .pp-question__body {
  grid-area: body;
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
  max-width: 62ch;
}

.page-products .pp-question__to {
  grid-area: to;
  margin: 4px 0 0;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  color: var(--slate);
  font-family: var(--font-mono);
}

/* ---------- 四档规格：横向面板 ---------- */

.page-products .pp-specs__figure {
  margin-top: 52px;
}

.page-products .pp-specs__scroll {
  display: flex;
  gap: 18px;
  margin-top: 48px;
  padding-bottom: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-products .pp-specs__scroll:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-products .pp-spec {
  scroll-snap-align: start;
  flex: 0 0 min(86%, 360px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 28px 24px 30px;
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 100%;
}

.page-products .pp-spec--1 {
  background: var(--linen);
  color: var(--ink);
  --pp-spec-line: var(--line);
}

.page-products .pp-spec--2 {
  background: var(--sand);
  color: var(--ink);
  --pp-spec-line: var(--line-strong);
}

.page-products .pp-spec--3 {
  background: var(--ridge);
  color: var(--sand);
  --pp-spec-line: var(--pp-dark-line);
}

.page-products .pp-spec--4 {
  background: var(--deep);
  color: var(--sand);
  border-color: var(--line-gold);
  --pp-spec-line: var(--pp-dark-line);
}

.page-products .pp-spec__idx {
  display: block;
  font-size: clamp(2.4rem, 9vw, 3.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--deep);
}

.page-products .pp-spec--3 .pp-spec__idx,
.page-products .pp-spec--4 .pp-spec__idx {
  color: var(--gold-soft);
}

.page-products .pp-spec__name {
  margin: 0;
  font-size: clamp(1.5rem, 5vw, 2rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-products .pp-spec--1 .pp-spec__name,
.page-products .pp-spec--2 .pp-spec__name {
  color: var(--deep);
}

.page-products .pp-spec__tagline {
  margin: -6px 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  opacity: 0.82;
}

.page-products .pp-spec__figure {
  margin: 4px 0 0;
}

.page-products .pp-spec__figure .figure__frame {
  border: 1px solid var(--pp-spec-line);
  border-radius: 6px;
  overflow: hidden;
}

.page-products .pp-spec__meta {
  display: grid;
  gap: 0;
  margin: 6px 0 0;
}

.page-products .pp-spec__meta > div {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid var(--pp-spec-line);
}

.page-products .pp-spec__meta dt {
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  opacity: 0.66;
}

.page-products .pp-spec__meta dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.65;
}

.page-products .pp-spec__note {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pp-spec-line);
  font-size: 0.82rem;
  line-height: 1.7;
  opacity: 0.72;
}

.page-products .pp-specs__hint {
  margin-top: 6px;
}

/* ---------- 独立品牌站接入 ---------- */

.page-products .pp-onboard .grid {
  align-items: start;
  row-gap: 48px;
}

.page-products .pp-onboard__list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .pp-onboard__list li {
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  max-width: 62ch;
}

.page-products .pp-onboard__list strong {
  display: block;
  font-weight: 700;
  color: var(--deep);
}

/* ---------- 参数对照 ---------- */

.page-products .pp-table {
  min-width: 720px;
}

.page-products .pp-table caption {
  caption-side: top;
  text-align: left;
  padding-bottom: 14px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-products .pp-table tbody th {
  font-weight: 700;
  color: var(--deep);
  white-space: nowrap;
}

.page-products .pp-table td {
  vertical-align: top;
}

.page-products .pp-params__footnote {
  margin-top: 16px;
}

.page-products .pp-params__figure {
  max-width: 520px;
  margin: 52px auto 0;
}

.page-products .pp-params__figure .figure__frame {
  border: 1px solid var(--line-strong);
}

.page-products .pp-params__more {
  margin-top: 48px;
  padding: 26px 22px;
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--gold);
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: flex-start;
}

.page-products .pp-params__more p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
  max-width: 62ch;
}

/* ---------- 下一步 ---------- */

.page-products .pp-next .grid {
  align-items: start;
  row-gap: 52px;
}

.page-products .pp-path {
  margin-top: 30px;
  border-top: 1px solid var(--pp-dark-line);
}

.page-products .pp-path__item {
  padding: 24px 0 26px;
  border-bottom: 1px solid var(--pp-dark-line);
}

.page-products .pp-path__item h3 {
  margin: 14px 0 8px;
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sand);
}

.page-products .pp-path__item p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--on-dark);
  max-width: 60ch;
}

.page-products .pp-next__contact {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

.page-products .pp-next__phone {
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--sand);
}

.page-products .pp-next__note {
  margin: 20px 0 0;
  font-size: 0.84rem;
  line-height: 1.8;
  color: var(--on-dark-soft);
  max-width: 64ch;
}

.page-products .pp-next__cta {
  margin-top: 30px;
}

.page-products .pp-next__aside-note {
  margin: 22px 0 14px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--on-dark);
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 720px) {
  .page-products .pp-intro__strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-fact {
    padding: 26px 24px;
  }

  .page-products .pp-spec {
    flex: 0 0 min(70%, 400px);
  }

  .page-products .pp-params__more {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 30px 28px;
  }
}

@media (min-width: 900px) {
  .page-products .pp-question {
    grid-template-columns: 110px minmax(0, 1fr);
    grid-template-areas:
      "num title"
      "num body"
      "num to";
    column-gap: 36px;
    row-gap: 14px;
    padding: 40px 0;
  }

  .page-products .pp-question__num {
    font-size: 2.1rem;
  }

  .page-products .pp-spec {
    flex: 0 0 380px;
  }

  .page-products .pp-params__figure {
    margin-top: 64px;
  }
}

@media (min-width: 1080px) {
  .page-products .pp-intro .grid {
    row-gap: 0;
  }

  .page-products .pp-specs__scroll {
    gap: 22px;
    padding-bottom: 26px;
  }
}

/* ---------- 减少动效 ---------- */

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

  .page-products .pp-index__item a:hover,
  .page-products .pp-index__item a:focus-visible {
    transform: none;
  }

  .page-products .pp-specs__scroll {
    scroll-behavior: auto;
  }
}