.page-products {
  --pr-rail-w: 300px;
  --pr-gutter: clamp(32px, 4.2vw, 52px);
  background: var(--hth-ink);
  color: var(--hth-mist);
  font-family: var(--hth-font-body);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-products .hth-crumbs {
  padding-block: 14px 0;
  color: var(--hth-mist);
  font-size: 12px;
}

.page-products .hth-crumbs a {
  color: var(--hth-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--hth-ease), border-color 0.18s var(--hth-ease);
}

.page-products .hth-crumbs a:hover,
.page-products .hth-crumbs a:focus-visible {
  color: var(--hth-neon);
  border-bottom-color: var(--hth-neon);
}

.page-products .hth-crumbs__sep {
  margin-inline: 8px;
  color: var(--hth-teal);
}

/* ---------- 首屏 ---------- */
.pr-hero {
  position: relative;
  overflow: hidden;
  border-bottom: var(--hth-edge);
  background:
    radial-gradient(120% 90% at 84% -14%, rgba(92, 255, 196, 0.16), transparent 62%),
    radial-gradient(80% 70% at -6% 108%, rgba(217, 98, 43, 0.16), transparent 66%),
    var(--hth-ink);
}

.pr-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--hth-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--hth-line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.18;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 76%);
  mask-image: linear-gradient(to bottom, #000, transparent 76%);
}

.pr-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-block: clamp(28px, 5vw, 64px);
}

.pr-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--hth-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--hth-neon);
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pr-hero__kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--hth-orange);
  display: inline-block;
}

.pr-hero h1 {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--hth-paper);
  max-width: 20ch;
}

.pr-hero__deck {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--hth-mist);
}

.pr-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.pr-meter {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hth-line);
  border: var(--hth-edge);
  border-radius: var(--hth-radius);
  overflow: hidden;
  align-self: start;
}

.pr-meter__cell {
  background: var(--hth-panel);
  padding: 14px 16px;
}

.pr-meter__num {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--hth-neon);
}

.pr-meter__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--hth-mist);
}

/* ---------- 双栏骨架 ---------- */
.pr-shell {
  display: grid;
  gap: var(--pr-gutter);
  padding-block: clamp(32px, 5vw, 64px) 0;
  align-items: start;
}

.pr-rail {
  display: grid;
  gap: 16px;
  align-content: start;
}

.pr-rail__title {
  margin: 0;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--hth-orange);
  text-transform: uppercase;
}

.pr-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hth-edge);
}

.pr-rail__list li {
  border-bottom: var(--hth-edge);
}

.pr-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 2px;
  font-size: 14.5px;
  color: var(--hth-paper);
  text-decoration: none;
  transition: color 0.18s var(--hth-ease), padding-left 0.18s var(--hth-ease);
}

.pr-rail__list a:hover,
.pr-rail__list a:focus-visible {
  color: var(--hth-neon);
  padding-left: 6px;
}

.pr-rail__list .hth-num {
  font-size: 12px;
  color: var(--hth-teal);
}

.pr-rail__legend {
  border: var(--hth-edge);
  border-radius: var(--hth-radius);
  background: var(--hth-panel);
  padding: 14px 16px;
}

.pr-rail__legend-title {
  margin: 0 0 10px;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--hth-orange);
}

.pr-rail__legend-row {
  margin: 0 0 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--hth-mist);
}

.pr-rail__legend-row:last-child {
  margin-bottom: 0;
}

.pr-dot {
  display: inline-block;
  width: 9px;
  height: 14px;
  border-radius: 1px;
  margin-right: 8px;
  vertical-align: -2px;
}

.pr-dot--yellow {
  background: var(--hth-yellow);
}

.pr-dot--red {
  background: var(--hth-red);
}

.pr-rail__foot {
  border-top: var(--hth-edge);
  padding-top: 14px;
}

.pr-rail__foot p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--hth-mist);
}

.pr-rail__foot .hth-btn {
  width: 100%;
  justify-content: center;
}

/* ---------- 通用小节头 ---------- */
.pr-sec-head {
  display: grid;
  gap: 10px;
  max-width: 70ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.pr-eyebrow {
  margin: 0;
  font-family: var(--hth-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--hth-orange);
}

.pr-sec-head h2 {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--hth-paper);
}

.pr-sec-deck {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--hth-mist);
}

/* ---------- 技能树 ---------- */
.pr-tree-sec {
  padding-bottom: clamp(28px, 4vw, 52px);
}

.pr-tree {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.pr-tree::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 30px;
  bottom: 30px;
  width: 1px;
  background: linear-gradient(to bottom, var(--hth-neon), var(--hth-teal) 46%, var(--hth-line));
}

.pr-node {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(56, 83, 75, 0.75);
}

.pr-node:last-child {
  border-bottom: 0;
}

.pr-node__no {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--hth-line);
  background: var(--hth-panel);
  color: var(--hth-neon);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.18s var(--hth-ease), background 0.18s var(--hth-ease);
}

.pr-node:hover .pr-node__no {
  border-color: var(--hth-neon);
}

.pr-node__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  margin-bottom: 6px;
}

.pr-node__title {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--hth-paper);
}

.pr-node__title a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--hth-ease), border-color 0.18s var(--hth-ease);
}

.pr-node__title a:hover,
.pr-node__title a:focus-visible {
  color: var(--hth-neon);
  border-bottom-color: var(--hth-neon);
}

.pr-node__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--hth-mist);
}

.pr-node__rel {
  margin: 8px 0 0;
  font-family: var(--hth-font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--hth-teal);
}

/* ---------- 服务模块 ---------- */
.pr-module {
  padding-block: clamp(28px, 4.6vw, 56px);
  border-top: var(--hth-edge);
  scroll-margin-top: clamp(72px, 10vh, 104px);
}

.pr-mod__head {
  display: grid;
  gap: 10px;
  max-width: 68ch;
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.pr-mod__no {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--hth-orange);
}

.pr-mod__head h2 {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.9vw, 30px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--hth-paper);
}

.pr-mod__claim {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--hth-neon);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--hth-paper);
}

.pr-mod__grid {
  display: grid;
  gap: clamp(18px, 2.8vw, 34px);
}

.pr-mod__col {
  display: grid;
  gap: 16px;
  align-content: start;
}

.pr-p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--hth-mist);
  max-width: 62ch;
}

/* ---------- 字段表 ---------- */
.pr-fields {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--hth-line);
  border: var(--hth-edge);
  border-radius: var(--hth-radius);
  overflow: hidden;
}

.pr-fields__row {
  display: grid;
  gap: 4px;
  background: var(--hth-panel);
  padding: 11px 14px;
  scroll-margin-top: clamp(72px, 10vh, 104px);
}

.pr-fields dt {
  font-family: var(--hth-font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--hth-neon);
}

.pr-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--hth-mist);
}

.pr-fields--tight .pr-fields__row {
  background: var(--hth-panel);
}

/* ---------- 折叠 ---------- */
.page-products .hth-acc {
  border: var(--hth-edge);
  border-radius: var(--hth-radius);
  background: var(--hth-panel);
}

.page-products .hth-acc__head {
  font-size: 14px;
  color: var(--hth-paper);
  padding: 12px 14px;
}

.page-products .hth-acc__body {
  padding: 0 14px 14px;
}

.page-products .hth-acc__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--hth-mist);
}

/* ---------- 图片 ---------- */
.page-products .pr-fig {
  margin: 0;
}

.page-products .pr-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pr-fig .hth-figure__cap {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--hth-mist);
}

/* ---------- 轮次条 ---------- */
.pr-rounds {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.pr-rounds__item {
  display: grid;
  place-items: center;
  min-width: 48px;
  padding: 8px 12px;
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  background: var(--hth-panel);
  font-family: var(--hth-font-mono);
  font-size: 13px;
  color: var(--hth-mist);
}

.pr-rounds__item.is-active {
  background: var(--hth-neon);
  border-color: var(--hth-neon);
  color: var(--hth-ink);
  font-weight: 700;
}

/* ---------- 奶油纸带 ---------- */
.pr-band {
  background: var(--hth-paper);
  color: var(--hth-brown);
  border-top: var(--hth-edge);
  border-bottom: var(--hth-edge);
  padding-block: clamp(30px, 5vw, 62px);
  margin-top: clamp(32px, 5vw, 64px);
  scroll-margin-top: 72px;
}

.pr-sec-head--band {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.pr-band .pr-eyebrow {
  color: var(--hth-orange);
}

.pr-band .pr-sec-head h2 {
  color: var(--hth-brown);
}

.pr-who {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 40px);
  padding: 0;
  display: grid;
  gap: 16px;
}

.pr-who__item {
  padding-left: 14px;
  border-left: 2px solid var(--hth-teal);
}

.pr-who__item h3 {
  margin: 0 0 5px;
  font-family: var(--hth-font-display);
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--hth-brown);
}

.pr-who__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(35, 26, 18, 0.82);
  max-width: 54ch;
}

.pr-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.pr-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px;
  background: #fbf6ea;
  border: 1px solid rgba(35, 26, 18, 0.16);
  border-radius: var(--hth-radius);
}

.pr-step__no {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--hth-brown);
  color: var(--hth-paper);
  font-size: 14px;
  line-height: 1;
}

.pr-step h3 {
  margin: 0 0 5px;
  font-family: var(--hth-font-display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--hth-brown);
}

.pr-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(35, 26, 18, 0.8);
}

/* ---------- 收尾 CTA ---------- */
.pr-cta {
  margin-top: clamp(32px, 5vw, 64px);
  padding-block: clamp(28px, 4.4vw, 52px);
  border-top: var(--hth-edge);
  background:
    linear-gradient(100deg, rgba(92, 255, 196, 0.12), transparent 58%),
    var(--hth-panel);
}

.pr-cta__inner {
  display: grid;
  gap: 20px;
}

.pr-cta h2 {
  margin: 0 0 10px;
  font-family: var(--hth-font-display);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--hth-paper);
}

.pr-cta p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--hth-mist);
}

.pr-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .pr-fields__row {
    grid-template-columns: minmax(96px, 132px) minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }

  .pr-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pr-who {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 28px;
  }
}

@media (min-width: 900px) {
  .pr-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }

  .pr-meter {
    grid-template-columns: minmax(0, 1fr);
  }

  .pr-mod__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .pr-mod__grid--flip > .pr-fig {
    order: -1;
  }

  .pr-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 980px) {
  .pr-shell {
    grid-template-columns: var(--pr-rail-w) minmax(0, 1fr);
  }

  .pr-rail {
    position: sticky;
    top: clamp(72px, 9vh, 96px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .pr-rail__list a,
  .pr-node__no,
  .pr-node__title a {
    transition: none;
  }
}