.page-products {
  --ph-gap: clamp(18px, 2.6vw, 32px);
  --ph-soft: rgba(246, 240, 230, .72);
}

/* ---------- 首屏 ---------- */
.page-products .ph-hero {
  padding-bottom: clamp(36px, 5vw, 64px);
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(138, 90, 43, .10), transparent 62%),
    var(--paper);
}

.page-products .ph-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .ph-hero__head {
  max-width: 46rem;
  margin-bottom: clamp(26px, 3.6vw, 42px);
}

.page-products .ph-hero__head .kicker {
  margin: 0 0 14px;
}

.page-products .ph-hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 4.4vw, 3.2rem);
  line-height: 1.18;
  letter-spacing: .02em;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-products .ph-hero .lead {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--taupe);
  max-width: 40rem;
}

.page-products .ph-hero__cols {
  display: grid;
  gap: var(--ph-gap);
}

@media (min-width: 900px) {
  .page-products .ph-hero__cols {
    grid-template-columns: minmax(0, 1.6fr) minmax(268px, .82fr);
    align-items: start;
  }
}

/* 三步路径图 */
.page-products .ph-hero__art {
  margin: 0 0 clamp(22px, 3vw, 30px);
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--ink);
  box-shadow: var(--shadow);
}

.page-products .ph-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-products .ph-hero__art figcaption {
  padding: 10px 14px;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--ph-soft);
  background: var(--ink);
  border-top: 1px solid var(--line-light);
}

.page-products .ph-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

@media (min-width: 640px) {
  .page-products .ph-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .ph-step {
  border-top: 2px solid var(--wood);
  padding-top: 14px;
}

.page-products .ph-step details {
  padding-bottom: 4px;
}

.page-products .ph-step summary {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-products .ph-step summary::-webkit-details-marker {
  display: none;
}

.page-products .ph-step summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .875rem;
  color: var(--wood);
  transition: transform .16s var(--ease);
}

.page-products .ph-step details[open] summary::after {
  content: "－";
}

.page-products .ph-step__num {
  flex: none;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--cinnabar);
  background: var(--paper);
  color: var(--cinnabar);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-variant-numeric: tabular-nums;
  transition: transform .16s var(--ease), background .16s var(--ease), color .16s var(--ease);
}

.page-products .ph-step details[open] .ph-step__num {
  background: var(--cinnabar);
  color: var(--paper);
  transform: translateY(-2px);
}

.page-products .ph-step p {
  margin: 10px 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--taupe);
}

.page-products .ph-trace {
  display: none;
  width: 100%;
  height: 76px;
  margin-top: 10px;
  color: var(--wood-light);
}

.page-products .ph-trace circle {
  fill: var(--cinnabar);
  opacity: .55;
}

@media (min-width: 760px) {
  .page-products .ph-trace {
    display: block;
  }
}

/* 注册侧栏 */
.page-products .ph-signup {
  background: var(--cinnabar);
  color: var(--paper);
  padding: clamp(22px, 3vw, 30px);
  box-shadow: var(--shadow-lift);
}

.page-products .ph-signup__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: rgba(246, 240, 230, .72);
}

.page-products .ph-signup__lede {
  margin: 0 0 18px;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .ph-signup__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
  border-top: 1px solid rgba(246, 240, 230, .24);
  padding-top: 16px;
}

.page-products .ph-signup__list li {
  display: flex;
  gap: 10px;
  font-size: .9375rem;
  line-height: 1.65;
  color: rgba(246, 240, 230, .92);
}

.page-products .ph-signup__list li::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  margin-top: .6em;
}

.page-products .ph-signup .btn {
  display: flex;
  width: 100%;
  justify-content: center;
  align-items: center;
  padding: 14px 18px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid rgba(20, 17, 15, .18);
  font-weight: 700;
  letter-spacing: .04em;
  transition: transform .16s var(--ease), background .16s var(--ease);
}

.page-products .ph-signup .btn:hover,
.page-products .ph-signup .btn:focus-visible {
  background: #fff;
  transform: translateY(-1px);
}

.page-products .ph-signup__note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: rgba(246, 240, 230, .78);
}

/* ---------- 五类内容 ---------- */
.page-products .ph-cats {
  background:
    linear-gradient(180deg, rgba(92, 141, 107, .13), rgba(92, 141, 107, .04));
  border-top: 1px solid rgba(92, 141, 107, .28);
  border-bottom: 1px solid rgba(92, 141, 107, .28);
}

.page-products .ph-cats__head {
  max-width: 44rem;
  margin-bottom: clamp(24px, 3.4vw, 38px);
}

.page-products .ph-cats__head .kicker {
  margin: 0 0 12px;
}

.page-products .ph-cats__intro {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--taupe);
}

.page-products .ph-cats__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 820px) {
  .page-products .ph-cats__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-products .ph-cat-photo { grid-column: span 7; }
  .page-products .ph-cat:nth-of-type(1) { grid-column: span 5; }
  .page-products .ph-cat:nth-of-type(2) { grid-column: span 5; }
  .page-products .ph-cat:nth-of-type(3) { grid-column: span 7; }
  .page-products .ph-cat:nth-of-type(4) { grid-column: span 12; }
  .page-products .ph-cat:nth-of-type(5) { grid-column: span 12; }
}

.page-products .ph-cat-photo {
  margin: 0;
  background: var(--ink);
  position: relative;
}

.page-products .ph-cat-photo img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 200px;
  aspect-ratio: 11 / 7;
  object-fit: cover;
}

.page-products .ph-cat-photo figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 14px;
  font-size: .8125rem;
  line-height: 1.55;
  color: var(--paper);
  background: linear-gradient(0deg, rgba(20, 17, 15, .88), rgba(20, 17, 15, 0));
}

.page-products .ph-cat {
  background: var(--paper);
  padding: clamp(18px, 2.4vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background .16s var(--ease);
}

.page-products .ph-cat:hover {
  background: rgba(200, 162, 121, .18);
}

.page-products .ph-cat__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--celadon);
}

.page-products .ph-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.375rem;
  line-height: 1.3;
  color: var(--ink);
}

.page-products .ph-cat__body {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--taupe);
}

.page-products .ph-cat .tag {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 功能地图 ---------- */
.page-products .ph-map__head {
  max-width: 44rem;
  margin-bottom: clamp(24px, 3.4vw, 36px);
}

.page-products .ph-map__head .kicker {
  margin: 0 0 12px;
}

.page-products .ph-map__intro {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--taupe);
}

.page-products .ph-map__layout {
  display: grid;
  gap: var(--ph-gap);
}

@media (min-width: 900px) {
  .page-products .ph-map__layout {
    grid-template-columns: minmax(190px, 250px) minmax(0, 1fr);
    align-items: start;
  }
}

.page-products .ph-map__railshot {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--paper);
}

.page-products .ph-map__railshot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 11;
  object-fit: cover;
}

.page-products .ph-map__railshot figcaption,
.page-products .ph-map__topshot figcaption {
  padding: 10px 14px;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--taupe);
  border-top: 1px solid var(--line);
}

.page-products .ph-map__stage {
  display: grid;
  gap: 16px;
}

.page-products .ph-map__topshot {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--ink);
}

.page-products .ph-map__topshot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 4;
  object-fit: cover;
}

.page-products .ph-map__topshot figcaption {
  background: var(--paper);
}

.page-products .ph-map__board {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

@media (min-width: 560px) {
  .page-products .ph-map__board {
    grid-template-columns: minmax(120px, 168px) minmax(0, 1fr);
  }
}

.page-products .ph-map__cell {
  background: var(--paper);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: background .16s var(--ease);
}

.page-products .ph-map__cell:hover,
.page-products .ph-map__cell:focus-within {
  background: rgba(224, 163, 46, .20);
}

.page-products .ph-map__cell--top {
  grid-column: 1 / -1;
  background: var(--ink-soft);
}

.page-products .ph-map__cell--top .ph-map__k {
  color: var(--amber);
}

.page-products .ph-map__cell--top .ph-map__v {
  color: rgba(246, 240, 230, .82);
}

.page-products .ph-map__cell--rail {
  border-left: 3px solid var(--celadon);
}

.page-products .ph-map__cell--body {
  border-left: 3px solid var(--wood);
}

.page-products .ph-map__k {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}

.page-products .ph-map__cell--top .ph-map__k {
  font-size: 1rem;
}

.page-products .ph-map__v {
  font-size: .875rem;
  line-height: 1.7;
  color: var(--taupe);
}

/* ---------- 桌面 / 移动 ---------- */
.page-products .ph-devices {
  background: var(--paper-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .ph-devices__head {
  max-width: 42rem;
  margin-bottom: clamp(24px, 3.4vw, 36px);
}

.page-products .ph-devices__head .kicker {
  margin: 0 0 12px;
}

.page-products .ph-devices__intro {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--taupe);
}

.page-products .ph-cmp {
  display: grid;
  gap: var(--ph-gap);
}

@media (min-width: 760px) {
  .page-products .ph-cmp {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-products .ph-cmp__panel {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .ph-cmp__frame {
  display: grid;
  grid-template-columns: 38% minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-products .ph-cmp__frame > span {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  font-size: .75rem;
  line-height: 1.5;
  letter-spacing: .02em;
}

.page-products .ph-cmp__bar {
  grid-column: 1 / -1;
  background: var(--ink);
  color: rgba(246, 240, 230, .86);
  border-bottom: 1px solid var(--line-strong);
}

.page-products .ph-cmp__rail {
  background: var(--ink-soft);
  color: var(--amber);
  border-right: 1px solid var(--line-strong);
  font-family: var(--font-mono);
}

.page-products .ph-cmp__body {
  color: var(--taupe);
  background:
    repeating-linear-gradient(0deg, rgba(138, 90, 43, .10) 0 1px, transparent 1px 22px),
    var(--paper);
}

.page-products .ph-cmp__panel--mobile img {
  display: block;
  width: 100%;
  max-width: 250px;
  height: auto;
  aspect-ratio: 6 / 10;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}

.page-products .ph-cmp__panel--mobile figcaption {
  max-width: 30rem;
}

.page-products .ph-cmp__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--ink);
}

.page-products .ph-cmp__text {
  margin: 8px 0 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--taupe);
}

/* ---------- 三条路径 ---------- */
.page-products .ph-paths {
  background:
    linear-gradient(120deg, rgba(46, 74, 87, .09), rgba(246, 240, 230, 0) 65%);
}

.page-products .ph-paths__head {
  max-width: 40rem;
  margin-bottom: clamp(22px, 3vw, 32px);
}

.page-products .ph-paths__head .kicker {
  margin: 0 0 12px;
}

.page-products .ph-paths__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 860px) {
  .page-products .ph-paths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .ph-path {
  background: var(--paper);
  padding: clamp(20px, 2.6vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-products .ph-path__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.45;
  color: var(--ink);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--wood);
}

.page-products .ph-path__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: phs;
  display: grid;
  gap: 10px;
}

.page-products .ph-path__steps li {
  position: relative;
  padding-left: 30px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--taupe);
  counter-increment: phs;
}

.page-products .ph-path__steps li::before {
  content: counter(phs, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .1em;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--indigo);
  border: 1px solid rgba(46, 74, 87, .38);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.page-products .ph-path__link {
  margin-top: auto;
  font-size: .875rem;
  font-weight: 700;
  color: var(--cinnabar);
  text-decoration: none;
  border-bottom: 1px solid rgba(178, 58, 46, .35);
  align-self: flex-start;
  padding-bottom: 2px;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-products .ph-path__link:hover,
.page-products .ph-path__link:focus-visible {
  color: var(--cinnabar-deep);
  border-color: var(--cinnabar-deep);
}

/* ---------- 帮助 / 联系 ---------- */
.page-products .ph-help {
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(48px, 6vw, 86px);
}

.page-products .ph-help__head {
  max-width: 40rem;
  margin-bottom: clamp(24px, 3.4vw, 38px);
}

.page-products .ph-help__head .kicker {
  margin: 0 0 12px;
  color: var(--amber);
}

.page-products .ph-help__head .section-title {
  color: var(--paper);
}

.page-products .ph-help__grid {
  display: grid;
  gap: var(--ph-gap);
}

@media (min-width: 860px) {
  .page-products .ph-help__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

.page-products .ph-help__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--paper);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-light);
}

.page-products .ph-help__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .ph-help__list li {
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(246, 240, 230, .78);
  padding-left: 16px;
  position: relative;
}

.page-products .ph-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--celadon);
}

.page-products .ph-help__list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-products .ph-help__list--plain li::before {
  background: var(--amber);
}

.page-products .ph-help__col--mail {
  background: var(--ink-soft);
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--amber);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-products .ph-help__mail {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 1rem;
  word-break: break-all;
}

.page-products .ph-help__mail a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 163, 46, .45);
}

.page-products .ph-help__mail a:hover,
.page-products .ph-help__mail a:focus-visible {
  color: var(--paper);
  border-color: var(--paper);
}

.page-products .ph-help__note {
  margin: 0;
  font-size: .875rem;
  line-height: 1.8;
  color: rgba(246, 240, 230, .68);
}

.page-products .ph-help__note a,
.page-products .ph-help__link {
  color: var(--wood-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 162, 121, .45);
}

.page-products .ph-help__note a:hover,
.page-products .ph-help__link:hover,
.page-products .ph-help__note a:focus-visible,
.page-products .ph-help__link:focus-visible {
  color: var(--paper);
  border-color: var(--paper);
}

.page-products .ph-help__link {
  display: inline-block;
  font-size: .9375rem;
  font-weight: 700;
}
<<<END>>>