.page-products {
  --pd-gap: clamp(20px, 3vw, 44px);
  --pd-rule: 1px solid var(--line);
  --pd-rule-mid: 1px solid var(--line-mid);
}

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

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  padding-block: clamp(28px, 5vw, 68px) clamp(28px, 4vw, 56px);
  border-bottom: var(--pd-rule);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper) 78%, var(--red-mist) 78%, var(--red-mist) 100%);
}

.page-products .pd-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pd-gap);
  align-items: start;
}

.page-products .pd-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  max-width: 16em;
}

.page-products .pd-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
}

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

.page-products .pd-panel {
  border: var(--pd-rule-mid);
  background: var(--paper);
  display: flex;
  flex-direction: column;
}

.page-products .pd-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  background: var(--cyan-deep);
  color: var(--paper);
}

.page-products .pd-panel__kicker {
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-products .pd-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-panel__list li {
  display: grid;
  grid-template-columns: 5.2em minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 18px;
  border-bottom: var(--pd-rule);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-products .pd-panel__list li:last-child {
  border-bottom: 0;
}

.page-products .pd-panel__num {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--red);
}

.page-products .pd-panel__foot {
  margin: 0;
  padding: 12px 18px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-deep);
  background: var(--cyan-mist);
  border-top: var(--pd-rule);
}

/* ---------- 章节题头 ---------- */
.page-products .pd-head {
  max-width: 44em;
  margin-bottom: clamp(24px, 3.5vw, 44px);
}

.page-products .pd-head h2 {
  margin: 10px 0 12px;
  font-size: clamp(24px, 3.2vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-weight: 900;
}

.page-products .pd-head .lede {
  margin: 0;
  max-width: 34em;
}

/* ---------- 三步注册 ---------- */
.page-products .pd-steps {
  padding-block: clamp(34px, 5vw, 76px);
}

.page-products .pd-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-mid);
  border: var(--pd-rule-mid);
}

.page-products .pd-step {
  background: var(--paper);
  padding: clamp(22px, 2.6vw, 32px);
  border-top: 4px solid var(--red);
  min-height: 44px;
}

.page-products .pd-step__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  font-weight: 700;
  color: var(--red);
}

.page-products .pd-step__title {
  margin: 12px 0 10px;
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.4;
  font-weight: 800;
}

.page-products .pd-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
}

.page-products .pd-step p.pd-step__meta {
  margin-top: 16px;
  padding-top: 12px;
  border-top: var(--pd-rule);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .pd-steps__figure {
  margin-top: clamp(24px, 3.5vw, 44px);
}

/* ---------- 版本对照 ---------- */
.page-products .pd-compare {
  background: var(--cyan-deep);
  color: var(--paper);
  padding-block: clamp(34px, 5vw, 76px);
}

.page-products .pd-compare .eyebrow {
  color: var(--gold-mist);
}

.page-products .pd-head--dark h2 {
  color: var(--paper);
}

.page-products .pd-head--dark .lede {
  color: rgba(252, 251, 249, 0.78);
}

.page-products .pd-compare__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(252, 251, 249, 0.18);
  border: 1px solid rgba(252, 251, 249, 0.18);
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

.page-products .pd-vercard {
  background: rgba(252, 251, 249, 0.04);
  padding: clamp(22px, 3vw, 34px);
}

.page-products .pd-vercard__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(252, 251, 249, 0.18);
}

.page-products .pd-vercard__no {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-products .pd-vercard__state {
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 4px 9px;
  border: 1px solid rgba(252, 251, 249, 0.34);
  color: rgba(252, 251, 249, 0.88);
}

.page-products .pd-vercard--new .pd-vercard__state {
  background: var(--red);
  border-color: var(--red);
  color: #FFFFFF;
}

.page-products .pd-vercard__title {
  margin: 18px 0 4px;
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.4;
  font-weight: 800;
  color: var(--paper);
}

.page-products .pd-vercard__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-vercard__list li {
  position: relative;
  padding: 14px 0 14px 20px;
  border-bottom: 1px solid rgba(252, 251, 249, 0.12);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(252, 251, 249, 0.9);
}

.page-products .pd-vercard__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pd-vercard__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  width: 9px;
  height: 1px;
  background: var(--gold);
}

.page-products .pd-compare__figure {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .pd-compare .figure__caption {
  color: rgba(252, 251, 249, 0.64);
}

.page-products .pd-compare__tip {
  margin: 0;
  max-width: 46em;
  padding: 6px 0 6px 18px;
  border-left: 3px solid var(--gold);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(252, 251, 249, 0.86);
}

/* ---------- 通用错位双栏 ---------- */
.page-products .pd-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 52px);
  align-items: start;
}

/* ---------- 设备适配 ---------- */
.page-products .pd-devices {
  padding-block: clamp(34px, 5vw, 76px);
  border-bottom: var(--pd-rule);
}

.page-products .pd-devices__text h2 {
  margin: 10px 0 14px;
  font-size: clamp(24px, 3.1vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 900;
}

.page-products .pd-devices__text > p {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.9;
  max-width: 34em;
}

.page-products .pd-devices__dl {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
}

.page-products .pd-devices__dl > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 15px 0;
  border-top: var(--pd-rule);
}

.page-products .pd-devices__dl dt {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-products .pd-devices__dl dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 进度查询 ---------- */
.page-products .pd-progress {
  padding-block: clamp(34px, 5vw, 76px);
}

.page-products .pd-progress__text h2 {
  margin: 10px 0 14px;
  font-size: clamp(24px, 3.1vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 900;
}

.page-products .pd-progress__text > p {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.9;
  max-width: 34em;
}

.page-products .pd-progress__stages {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  border-top: var(--pd-rule-mid);
}

.page-products .pd-progress__stages li {
  display: grid;
  grid-template-columns: 3.2em minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-bottom: var(--pd-rule);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-products .pd-progress__stages .mono {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--red);
  padding-top: 3px;
}

.page-products .pd-progress__stages strong {
  font-weight: 800;
}

.page-products .pd-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray);
  max-width: 36em;
}

.page-products .pd-demo {
  background: var(--paper);
  border: var(--pd-rule-mid);
  padding: clamp(20px, 2.6vw, 30px);
}

.page-products .pd-demo__flag {
  display: inline-block;
  margin: 0 0 20px;
  padding: 3px 9px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  background: var(--gold-mist);
  border: 1px solid var(--gold);
  color: var(--ink);
}

.page-products .pd-demo__label {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.page-products .pd-demo__field {
  margin: 0 0 18px;
  padding: 15px 16px;
  border: 1px solid var(--line-strong);
  background: #FFFFFF;
  font-size: 16px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.page-products .pd-demo__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 服务等级 ---------- */
.page-products .pd-tiers {
  padding-block: clamp(34px, 5vw, 76px);
}

.page-products .pd-tiers__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-mid);
  border: var(--pd-rule-mid);
}

.page-products .pd-tier {
  padding: clamp(22px, 2.8vw, 34px);
  border-top: 5px solid transparent;
}

.page-products .pd-tier--std {
  background: var(--paper);
  border-top-color: var(--cyan);
}

.page-products .pd-tier--pri {
  background: var(--red-mist);
  border-top-color: var(--red);
}

.page-products .pd-tier--exc {
  background: var(--gold-mist);
  border-top-color: var(--gold);
}

.page-products .pd-tier__name {
  margin: 0 0 6px;
  font-size: clamp(21px, 2vw, 24px);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-products .pd-tier__role {
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--gray);
}

.page-products .pd-tier__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pd-tier__rows li {
  padding: 13px 0;
  border-top: var(--pd-rule);
  font-size: 15px;
  line-height: 1.8;
}

.page-products .pd-tier__rows li strong {
  display: block;
  margin-bottom: 5px;
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .pd-tier--exc .pd-tier__rows li strong {
  color: var(--red-deep);
}

.page-products .pd-tiers__figure {
  margin-top: clamp(24px, 3.5vw, 44px);
}

/* ---------- 版本迭代 ---------- */
.page-products .pd-cadence {
  padding-block: clamp(34px, 5vw, 76px);
  background: var(--cyan-mist);
  border-top: var(--pd-rule);
  border-bottom: var(--pd-rule);
}

.page-products .pd-cadence__inner {
  max-width: 48em;
}

.page-products .pd-cadence h2 {
  margin: 10px 0 14px;
  font-size: clamp(24px, 3.1vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 900;
}

.page-products .pd-cadence p {
  margin: 0;
  font-size: 16.5px;
  line-height: 1.9;
}

.page-products .pd-cadence__list {
  list-style: none;
  margin: clamp(24px, 3vw, 34px) 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-mid);
  border: var(--pd-rule-mid);
}

.page-products .pd-cadence__list li {
  background: var(--paper);
  padding: clamp(20px, 2.4vw, 28px);
}

.page-products .pd-cadence__list li p {
  font-size: 15.5px;
  line-height: 1.85;
}

.page-products .pd-cadence__key {
  display: inline-block;
  margin-bottom: 14px;
  padding-bottom: 5px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--red);
  border-bottom: 2px solid var(--red);
}

.page-products .pd-cadence__more {
  max-width: 38em;
}

.page-products .pd-cadence__more a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收束 ---------- */
.page-products .pd-next {
  padding-block: clamp(34px, 5vw, 68px);
}

.page-products .pd-next__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
}

.page-products .pd-next__text h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.015em;
  font-weight: 900;
}

.page-products .pd-next__text p {
  margin: 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.9;
}

.page-products .pd-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .pd-devices__dl > div {
    grid-template-columns: 9.5em minmax(0, 1fr);
    gap: 4px 20px;
  }

  .page-products .pd-cadence__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .pd-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .pd-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pd-compare__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pd-tiers__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pd-split--7-5 {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-products .pd-split--5-7 {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-products .pd-next__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-products .pd-next__links {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-products .pd-devices__inner {
    padding-left: clamp(0px, 4vw, 64px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-vercard,
  .page-products .pd-tier,
  .page-products .pd-step {
    transition: none;
  }
}