.page-products {
  --sp-narrow: 680px;
  --sp-shadow: 0 10px 28px rgba(61, 28, 75, .07);
  --sp-shadow-hover: 0 18px 40px rgba(61, 28, 75, .13);
  --sp-ink-soft: rgba(36, 27, 42, .76);
}

/* ---------- 首屏 ---------- */
.page-products .sp-hero {
  padding: clamp(16px, 3vw, 30px) 0 clamp(34px, 5vw, 72px);
  background:
    radial-gradient(760px 380px at 4% -10%, rgba(231, 220, 235, .95), transparent 68%),
    radial-gradient(640px 340px at 100% 2%, rgba(220, 235, 224, .9), transparent 70%);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .sp-hero__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  margin-top: clamp(16px, 2.4vw, 28px);
}

.page-products .sp-hero__title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-products .sp-hero__lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.85;
  color: var(--sp-ink-soft);
}

.page-products .sp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .sp-hero__aside {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-products .sp-stat {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: 14px 18px;
  box-shadow: var(--sp-shadow);
  border-left: 4px solid var(--gold);
}

.page-products .sp-stat:nth-child(2) { border-left-color: var(--vine); }
.page-products .sp-stat:nth-child(3) { border-left-color: var(--grape); }

.page-products .sp-stat__num {
  font-family: var(--mono);
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.2;
  color: var(--grape-deep);
  margin: 0;
}

.page-products .sp-stat__label {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

@media (min-width: 900px) {
  .page-products .sp-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
  .page-products .sp-hero__aside {
    padding-bottom: 6px;
  }
}

/* ---------- 三簇服务 ---------- */
.page-products .sp-clusters {
  padding: clamp(40px, 6vw, 84px) 0 clamp(32px, 4vw, 56px);
}

.page-products .sp-clusters__grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .sp-cluster {
  border-radius: var(--r-lg);
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid rgba(255, 253, 248, .8);
  box-shadow: var(--sp-shadow);
}

.page-products .sp-cluster--green { background: var(--mist-green); }
.page-products .sp-cluster--purple { background: var(--mist-purple); }
.page-products .sp-cluster--gold { background: var(--gold-light); }

.page-products .sp-cluster__count {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--grape-deep);
  background: rgba(255, 253, 248, .72);
  border-radius: var(--pill);
  padding: 3px 12px;
  display: inline-block;
}

.page-products .sp-cluster__title {
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.35;
  color: var(--grape-deep);
  margin: 12px 0 6px;
}

.page-products .sp-service-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .sp-service {
  display: block;
  padding: 12px 0;
  border-top: 1px dashed rgba(36, 27, 42, .16);
}

.page-products .sp-service:first-child {
  border-top: 0;
  padding-top: 8px;
}

.page-products .sp-service__name {
  display: block;
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
}

.page-products .sp-service__scene {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--sp-ink-soft);
}

.page-products .sp-cluster-art {
  margin: clamp(24px, 3vw, 36px) 0 0;
  max-width: 520px;
  margin-left: auto;
}

.page-products .sp-cluster-art img {
  border-radius: var(--r-lg);
  box-shadow: var(--sp-shadow);
}

@media (min-width: 820px) {
  .page-products .sp-clusters__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }
  .page-products .sp-cluster--purple { margin-top: 22px; }
  .page-products .sp-cluster--gold { margin-top: 44px; }
}

/* ---------- 案例合集 ---------- */
.page-products .sp-cases {
  padding: clamp(40px, 6vw, 84px) 0;
  background: linear-gradient(180deg, rgba(255, 253, 248, .9), rgba(231, 220, 235, .42) 60%, rgba(247, 243, 236, .9));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .sp-read {
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-products .sp-read__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: 14px 16px;
}

.page-products .sp-read__item--tags {
  background: var(--gold-light);
  border-color: rgba(201, 162, 39, .35);
}

.page-products .sp-read__num {
  margin: 0;
  font-family: var(--mono);
  font-size: 26px;
  line-height: 1.1;
  color: var(--grape);
  text-align: center;
}

.page-products .sp-read__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .case-stage {
  position: relative;
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-products .case-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .case-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px;
  background: var(--mist-green);
  border-radius: var(--r-md);
  margin-bottom: 22px;
}

.page-products .case-filter label {
  cursor: pointer;
  font-size: 14px;
  line-height: 1.4;
  padding: 7px 15px;
  border-radius: var(--pill);
  border: 1px solid rgba(62, 142, 90, .35);
  background: var(--card);
  color: var(--vine-deep);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .case-filter label:hover {
  border-color: var(--vine);
  background: #fff;
}

.page-products #cf-all:checked ~ .case-filter label[for="cf-all"],
.page-products #cf-strategy:checked ~ .case-filter label[for="cf-strategy"],
.page-products #cf-visual:checked ~ .case-filter label[for="cf-visual"],
.page-products #cf-docs:checked ~ .case-filter label[for="cf-docs"] {
  background: var(--grape);
  color: #FFFDF8;
  border-color: var(--grape);
}

.page-products #cf-strategy:checked ~ .case-grid .case-card:not(.cat-strategy),
.page-products #cf-visual:checked ~ .case-grid .case-card:not(.cat-visual),
.page-products #cf-docs:checked ~ .case-grid .case-card:not(.cat-docs) {
  display: none;
}

.page-products .case-grid {
  column-count: 1;
  column-gap: 20px;
}

.page-products .case-card {
  display: block;
  break-inside: avoid;
  margin: 0 0 20px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--sp-shadow);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .case-card__img {
  aspect-ratio: 1 / 1;
  background: linear-gradient(140deg, var(--mist-purple), var(--mist-green) 55%, var(--gold-light));
  overflow: hidden;
}

.page-products .case-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-products .case-card__body {
  padding: 16px 18px 20px;
}

.page-products .case-card__title {
  font-family: var(--serif);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.45;
  color: var(--ink);
  margin: 0;
}

.page-products .case-card__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sp-ink-soft);
}

.page-products .case-card__result {
  margin: 12px 0 0;
  padding-left: 11px;
  border-left: 3px solid var(--gold);
  font-size: 14px;
  line-height: 1.7;
  font-weight: 600;
  color: var(--vine-deep);
}

.page-products .case-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding: 0;
}

.page-products .case-tag {
  font-size: 12px;
  line-height: 1.5;
  padding: 3px 10px;
  border-radius: var(--pill);
  background: var(--mist-purple);
  color: var(--grape-deep);
}

.page-products .case-tag--type {
  background: var(--mist-green);
  color: var(--vine-deep);
}

.page-products .case-tag--stage {
  background: var(--gold-light);
  color: #5A4508;
}

@media (hover: hover) {
  .page-products .case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--sp-shadow-hover);
    border-color: rgba(91, 44, 111, .28);
  }
}

@media (min-width: 700px) {
  .page-products .case-grid { column-count: 2; }
  .page-products .sp-read { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-products .sp-read__item { grid-template-columns: 1fr; }
  .page-products .sp-read__num { text-align: left; }
}

@media (min-width: 1060px) {
  .page-products .case-grid { column-count: 3; }
}

/* ---------- 五步交付 ---------- */
.page-products .sp-flow {
  padding: clamp(36px, 5vw, 72px) 0;
}

.page-products .sp-flow__panel {
  background: linear-gradient(158deg, rgba(231, 220, 235, .85), rgba(220, 235, 224, .82) 62%, rgba(232, 217, 166, .55));
  border-radius: var(--r-lg);
  padding: clamp(20px, 3.4vw, 44px);
  border: 1px solid rgba(255, 253, 248, .85);
}

.page-products .sp-flow__figure {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
}

.page-products .sp-flow__figure img {
  border-radius: var(--r-md);
  width: 100%;
  height: auto;
}

.page-products .sp-flow__steps {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .sp-step {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: 16px 16px 18px;
  box-shadow: var(--sp-shadow);
}

.page-products .sp-step__no {
  display: inline-block;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.4;
  padding: 3px 10px;
  border-radius: var(--pill);
  background: var(--gold-light);
  color: #5A4508;
  letter-spacing: .04em;
}

.page-products .sp-step__title {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.4;
  color: var(--grape-deep);
  margin: 10px 0 0;
}

.page-products .sp-step__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--sp-ink-soft);
}

.page-products .sp-step__meta {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
}

.page-products .sp-step__meta span {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11.5px;
  padding: 2px 8px;
  margin-right: 6px;
  border-radius: var(--pill);
  background: var(--mist-green);
  color: var(--vine-deep);
}

@media (min-width: 920px) {
  .page-products .sp-flow__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
  }
  .page-products .sp-step:nth-child(even) { margin-top: 18px; }
}

/* ---------- 九步注册 ---------- */
.page-products .sp-reg {
  padding: clamp(36px, 5vw, 76px) 0;
  background: linear-gradient(180deg, rgba(247, 243, 236, .5), rgba(220, 235, 224, .38));
}

.page-products .sp-reg__inner {
  max-width: var(--sp-narrow);
  margin: 0 auto;
}

.page-products .sp-reg__title {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.28;
  color: var(--ink);
  margin: 12px 0 0;
}

.page-products .sp-reg__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--sp-ink-soft);
}

.page-products .sp-reg__list {
  position: relative;
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
}

.page-products .sp-reg__list::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 1.5px;
  background: linear-gradient(180deg, var(--vine), var(--grape) 55%, var(--gold));
}

.page-products .sp-reg__item {
  position: relative;
  padding: 0 0 20px 46px;
}

.page-products .sp-reg__item:last-child { padding-bottom: 0; }

.page-products .sp-reg__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 31px;
  height: 31px;
  border-radius: 50%;
  background: var(--card);
  border: 1.5px solid var(--vine);
  color: var(--vine-deep);
  font-family: var(--mono);
  font-size: 12px;
  display: grid;
  place-items: center;
}

.page-products .sp-reg__title-sm {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.45;
  color: var(--grape-deep);
  margin: 4px 0 0;
}

.page-products .sp-reg__text {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sp-ink-soft);
}

.page-products .sp-reg__details {
  margin-top: 8px;
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  padding: 9px 13px;
}

.page-products .sp-reg__details summary {
  cursor: pointer;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--grape);
  line-height: 1.6;
}

.page-products .sp-reg__details p {
  margin: 8px 0 2px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--sp-ink-soft);
}

/* ---------- 起步方式 ---------- */
.page-products .sp-start {
  padding: clamp(36px, 5vw, 76px) 0 clamp(44px, 6vw, 88px);
}

.page-products .sp-start__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .sp-start__card {
  border-radius: var(--r-md);
  padding: 20px;
  border: 1px solid rgba(255, 253, 248, .9);
  box-shadow: var(--sp-shadow);
}

.page-products .sp-start__card--green { background: var(--mist-green); }
.page-products .sp-start__card--purple { background: var(--mist-purple); }
.page-products .sp-start__card--gold { background: var(--gold-light); }

.page-products .sp-start__tag {
  display: inline-block;
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  padding: 3px 11px;
  border-radius: var(--pill);
  background: rgba(255, 253, 248, .8);
  color: var(--grape-deep);
}

.page-products .sp-start__title {
  font-family: var(--serif);
  font-size: clamp(18px, 1.9vw, 22px);
  line-height: 1.4;
  color: var(--grape-deep);
  margin: 12px 0 0;
}

.page-products .sp-start__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--sp-ink-soft);
}

.page-products .sp-start__bottom {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-products .sp-materials {
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  padding: 20px 22px;
}

.page-products .sp-materials__title {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-products .sp-materials__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .sp-materials__list li {
  position: relative;
  padding: 8px 0 8px 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--sp-ink-soft);
  border-top: 1px dashed rgba(91, 44, 111, .16);
}

.page-products .sp-materials__list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .sp-materials__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 16px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.page-products .sp-materials__list li:first-child::before { top: 8px; }

.page-products .sp-start__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-products .sp-start__cta-text {
  flex: 1 1 100%;
  margin: 0 0 6px;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--sp-ink-soft);
}

.page-products .sp-start__cta .btn {
  flex: 0 0 auto;
}

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

@media (min-width: 940px) {
  .page-products .sp-start__bottom {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .case-card,
  .page-products .case-filter label {
    transition: none;
  }
  .page-products .case-card:hover { transform: none; }
}
<<<END>>>