.page-products {
  --pf-line: var(--line-gobi);
  --pf-gap: clamp(14px, 2.6vw, 26px);
  --pf-pad: clamp(18px, 3vw, 30px);
  background: var(--void);
  color: var(--bone);
  font-family: var(--font-sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.page-products .pf-wrap {
  width: 100%;
  max-width: var(--shell-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-products .mono {
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

.page-products .pf-section {
  padding-block: clamp(46px, 7vw, 92px);
}

.page-products .pf-section--alt {
  border-top: 1px solid var(--line-ash);
  background: linear-gradient(180deg, rgba(36, 24, 19, .62), rgba(17, 16, 15, 0) 72%);
}

/* ===== 首屏 ===== */
.page-products .pf-hero {
  padding: clamp(8px, 1.6vw, 16px);
  background: var(--void);
}

.page-products .pf-hero__frame {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(420px, 72vh, 640px);
  padding-block: clamp(28px, 6vw, 72px);
  border: 1px solid var(--pf-line);
  background: var(--archive);
  overflow: hidden;
}

.page-products .pf-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .38;
  filter: saturate(.7) contrast(1.08);
}

.page-products .pf-hero__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(110% 80% at 8% 0%, rgba(255, 90, 31, .22), rgba(17, 16, 15, 0) 58%),
    radial-gradient(90% 70% at 100% 100%, rgba(99, 211, 220, .14), rgba(17, 16, 15, 0) 60%),
    linear-gradient(115deg, rgba(17, 16, 15, .94) 26%, rgba(36, 24, 19, .72) 62%, rgba(17, 16, 15, .9));
}

.page-products .pf-hero__frame::before,
.page-products .pf-hero__frame::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 26px;
  border: 1px solid var(--gobi);
  opacity: .75;
  pointer-events: none;
  z-index: 3;
}

.page-products .pf-hero__frame::before {
  top: 12px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
}

.page-products .pf-hero__frame::after {
  right: 12px;
  bottom: 12px;
  border-left: 0;
  border-top: 0;
}

.page-products .pf-hero__inner {
  position: relative;
  z-index: 2;
}

.page-products .pf-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 4vw, 38px);
  font-size: 12px;
  color: var(--ash);
}

.page-products .pf-crumb a {
  color: var(--gobi);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-products .pf-crumb a:hover {
  color: var(--lava);
}

.page-products .pf-hero__kicker {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-products .pf-hero__title {
  margin: 0 0 clamp(14px, 2.4vw, 22px);
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6.6vw, 4.2rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: .01em;
  color: var(--bone);
  transform: skewX(-2deg);
  transform-origin: left center;
  text-wrap: balance;
}

.page-products .pf-hero__lead {
  max-width: 36em;
  margin: 0 0 clamp(20px, 3.4vw, 30px);
  font-size: clamp(.94rem, 1.5vw, 1.06rem);
  line-height: 1.82;
  color: rgba(247, 239, 227, .8);
}

.page-products .pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pf-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: clamp(16px, 2.4vw, 22px) 0 0;
  border-top: 1px solid var(--pf-line);
  list-style: none;
}

.page-products .pf-hero__stats li {
  min-width: 0;
}

.page-products .pf-hero__num {
  display: block;
  font-size: clamp(1.4rem, 4vw, 2.4rem);
  line-height: 1;
  color: var(--gobi);
}

.page-products .pf-hero__unit {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ash);
}

/* ===== 区块标题 ===== */
.page-products .pf-head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.6vw, 40px);
}

.page-products .pf-head__kicker {
  margin: 0;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lava);
}

.page-products .pf-head__kicker::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--lava);
}

.page-products .pf-head__title {
  margin: .34em 0 .5em;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4vw, 2.55rem);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--bone);
}

.page-products .pf-head__lead {
  max-width: 42em;
  margin: 0;
  font-size: clamp(.92rem, 1.4vw, 1.02rem);
  line-height: 1.82;
  color: var(--ash);
}

/* ===== 三级筛选 ===== */
.page-products .pf-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-step {
  position: relative;
  padding: var(--pf-pad);
  border: 1px solid var(--line-ash);
  background: var(--archive);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-products .pf-step__num {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 9px;
  border: 1px solid rgba(255, 90, 31, .48);
  font-size: 11px;
  color: var(--lava);
}

.page-products .pf-step__name {
  margin: 0 0 12px;
  font-size: 1.06rem;
  font-weight: 600;
  color: var(--bone);
}

.page-products .pf-step__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ash);
}

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

.page-products .pf-chip {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid var(--line-ash);
  background: rgba(255, 255, 255, .02);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ash);
}

.page-products .pf-chip--on {
  border-color: var(--lava);
  background: var(--lava);
  color: var(--void);
}

/* ===== 工作台双栏 ===== */
.page-products .pf-workbench {
  border-top: 1px solid var(--line-ash);
  background: linear-gradient(180deg, rgba(36, 24, 19, .5), rgba(17, 16, 15, 0) 62%);
}

.page-products .pf-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
  padding-block: clamp(46px, 7vw, 92px);
}

.page-products .pf-split__main {
  min-width: 0;
}

.page-products .pf-block + .pf-block {
  margin-top: clamp(40px, 6vw, 72px);
}

.page-products .pf-side {
  display: grid;
  gap: 14px;
}

.page-products .pf-side__box {
  padding: 16px;
  border: 1px solid var(--line-gobi);
  background: var(--archive);
}

.page-products .pf-side__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .pf-side__dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.page-products .pf-side__dl > div {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line-ash);
  font-size: 13px;
}

.page-products .pf-side__dl > div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .pf-side__dl dt {
  color: var(--ash);
}

.page-products .pf-side__dl dd {
  margin: 0;
  color: var(--bone);
}

.page-products .pf-legend {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--ash);
}

.page-products .pf-legend li {
  display: flex;
  align-items: center;
  gap: 9px;
}

.page-products .pf-legend__sw {
  flex: 0 0 auto;
  width: 14px;
  height: 3px;
}

.page-products .pf-legend__sw--lava { background: var(--lava); }
.page-products .pf-legend__sw--cyan { background: var(--cyan); }
.page-products .pf-legend__sw--gobi { background: var(--gobi); }
.page-products .pf-legend__sw--ash  { background: var(--ash); }

.page-products .pf-side__nav {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-side__nav a {
  display: block;
  padding: 7px 0 7px 10px;
  border-left: 2px solid var(--line-ash);
  color: var(--ash);
  font-size: 13px;
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-products .pf-side__nav a:hover,
.page-products .pf-side__nav a.is-active {
  color: var(--lava);
  border-left-color: var(--lava);
}

.page-products .pf-side__nav a.is-active {
  color: var(--bone);
}

/* ===== 图框 ===== */
.page-products .pf-photo {
  position: relative;
  margin: 0 0 clamp(22px, 3vw, 32px);
  padding: 10px;
  border: 1px solid var(--line-gobi);
  background: var(--archive);
}

.page-products .pf-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--void);
}

.page-products .pf-photo--wide img {
  aspect-ratio: 16 / 9;
}

.page-products .pf-photo__cap {
  display: block;
  margin-top: 10px;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ash);
}

/* ===== 字段表 ===== */
.page-products .pf-fieldlist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-ash);
  list-style: none;
}

.page-products .pf-fieldlist li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
  padding: 11px 12px 11px 0;
  border-bottom: 1px solid var(--line-ash);
  font-size: 14px;
  color: rgba(247, 239, 227, .86);
}

.page-products .pf-fieldlist__n {
  flex: 0 0 auto;
  font-size: 11px;
  color: var(--gobi);
}

/* ===== 备注列表 ===== */
.page-products .pf-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-notes li {
  padding-top: 14px;
  border-top: 1px solid var(--line-gobi);
  font-size: 14px;
  line-height: 1.78;
  color: rgba(247, 239, 227, .82);
}

.page-products .pf-notes__k {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

/* ===== 版本适应三级 ===== */
.page-products .pf-levels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-level {
  padding: var(--pf-pad);
  border: 1px solid var(--line-ash);
  background: linear-gradient(155deg, rgba(36, 24, 19, .92), rgba(17, 16, 15, .86));
}

.page-products .pf-level__bar {
  display: block;
  height: 5px;
  margin-bottom: 16px;
}

.page-products .pf-level--a .pf-level__bar { background: var(--cyan); }
.page-products .pf-level--b .pf-level__bar { background: var(--gobi); }
.page-products .pf-level--c .pf-level__bar { background: var(--lava); }

.page-products .pf-level__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: .04em;
  color: var(--bone);
}

.page-products .pf-level__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ash);
}

/* ===== 使用场景 ===== */
.page-products .pf-scenes {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-scene {
  padding: var(--pf-pad);
  border-left: 2px solid var(--line-gobi);
  background: rgba(36, 24, 19, .55);
}

.page-products .pf-scene__who {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gobi);
}

.page-products .pf-scene h3 {
  margin: 0 0 8px;
  font-size: 1.04rem;
  font-weight: 600;
  color: var(--bone);
}

.page-products .pf-scene p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ash);
}

/* ===== 更新节奏 ===== */
.page-products .pf-cadence__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pf-gap);
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-products .pf-stat {
  padding: var(--pf-pad);
  border: 1px solid var(--line-gobi);
  background: var(--archive);
}

.page-products .pf-stat__n {
  display: block;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1;
  color: var(--lava);
}

.page-products .pf-stat__l {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ash);
}

/* ===== 开始查询 ===== */
.page-products .pf-start__panel {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
  padding: clamp(26px, 5vw, 56px);
  border: 1px solid var(--line-gobi);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 90, 31, .16), rgba(17, 16, 15, 0) 62%),
    var(--archive);
}

.page-products .pf-start__panel .pf-head__title {
  margin-top: .3em;
}

.page-products .pf-start__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-products .pf-start__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ash);
}

.page-products .pf-code {
  display: block;
  padding: 14px 16px;
  border: 1px dashed var(--line-gobi);
  background: rgba(99, 211, 220, .07);
  font-family: var(--font-mono);
  font-size: clamp(.82rem, 2.2vw, 1rem);
  letter-spacing: .06em;
  color: var(--cyan);
  word-break: break-all;
}

.page-products .pf-start__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ash);
}

.page-products .pf-start__note b {
  color: var(--bone);
  font-weight: 600;
}

/* ===== 响应式 ===== */
@media (min-width: 700px) {
  .page-products .pf-fieldlist {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pf-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--pf-gap);
  }

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

@media (min-width: 760px) {
  .page-products .pf-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-products .pf-start__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-products .pf-levels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-products .pf-split {
    grid-template-columns: minmax(0, 1fr) 246px;
  }

  .page-products .pf-side {
    position: sticky;
    top: 24px;
  }
}

@media (max-width: 599px) {
  .page-products .pf-hero__stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .page-products .pf-hero__stats li {
    display: flex;
    align-items: baseline;
    gap: 10px;
  }

  .page-products .pf-hero__unit {
    margin-top: 0;
  }

  .page-products .pf-hero__title {
    transform: none;
  }

  .page-products .pf-fieldlist {
    grid-template-columns: 1fr;
  }
}

/* ===== 打印 ===== */
@media print {
  .page-products {
    background: #fff;
    color: var(--ink);
  }

  .page-products .pf-hero__img,
  .page-products .pf-hero__veil,
  .page-products .pf-hero__frame::before,
  .page-products .pf-hero__frame::after,
  .page-products .pf-side,
  .page-products .pf-hero__actions,
  .page-products .pf-start__actions {
    display: none !important;
  }

  .page-products .pf-hero__frame,
  .page-products .pf-step,
  .page-products .pf-stat,
  .page-products .pf-level,
  .page-products .pf-scene,
  .page-products .pf-photo,
  .page-products .pf-start__panel {
    background: none;
    border-color: #999;
    box-shadow: none;
  }

  .page-products .pf-hero__title,
  .page-products .pf-head__title,
  .page-products .pf-step__name,
  .page-products .pf-scene h3,
  .page-products .pf-level__name,
  .page-products .pf-hero__num,
  .page-products .pf-stat__n {
    color: #111;
  }

  .page-products .pf-hero__lead,
  .page-products .pf-head__lead,
  .page-products .pf-step__note,
  .page-products .pf-scene p,
  .page-products .pf-level__desc,
  .page-products .pf-stat__l,
  .page-products .pf-side__dl dd,
  .page-products .pf-start__note {
    color: #333;
  }

  .page-products .pf-section,
  .page-products .pf-split {
    padding-block: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-hero__title {
    transform: none;
  }

  .page-products .pf-side__nav a,
  .page-products .pf-crumb a {
    transition: none;
  }
}