.page-products {
  background: var(--k1-black);
  color: var(--k1-chalk);
  font-family: var(--k1-font-body);
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--k1-font-display);
  font-weight: 900;
  letter-spacing: -0.035em;
  margin: 0;
}

.page-products .k1-mono {
  font-family: var(--k1-font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-products .pd-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 26px 0 48px;
  border-bottom: var(--k1-border-strong);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(230, 51, 41, 0.24), transparent 62%),
    linear-gradient(180deg, var(--k1-concrete), var(--k1-black));
}

.page-products .pd-hero-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 42%;
  opacity: 0.22;
  filter: grayscale(0.55) contrast(1.15);
}

.page-products .pd-stairs {
  position: absolute;
  right: -12%;
  bottom: 0;
  z-index: -1;
  width: 70%;
  height: 66%;
  pointer-events: none;
}

.page-products .pd-stair {
  position: absolute;
  display: block;
  border: 2px solid var(--k1-stand);
  box-shadow: -10px 10px 0 rgba(0, 0, 0, 0.5);
}

.page-products .pd-stair--1 {
  left: 0;
  bottom: 4%;
  width: 88%;
  height: 30%;
  background: linear-gradient(120deg, rgba(43, 45, 49, 0.92), rgba(23, 24, 26, 0.6));
  clip-path: polygon(0 26%, 100% 0, 100% 100%, 0 100%);
}

.page-products .pd-stair--2 {
  left: 14%;
  bottom: 28%;
  width: 70%;
  height: 30%;
  background: linear-gradient(120deg, rgba(31, 122, 90, 0.6), rgba(31, 122, 90, 0.12));
  clip-path: polygon(10% 0, 100% 28%, 100% 100%, 0 100%);
}

.page-products .pd-stair--3 {
  left: 32%;
  bottom: 52%;
  width: 50%;
  height: 30%;
  background: linear-gradient(120deg, rgba(230, 51, 41, 0.78), rgba(230, 51, 41, 0.2));
  clip-path: polygon(14% 0, 100% 32%, 100% 100%, 0 100%);
}

.page-products .pd-hero-inner {
  position: relative;
  display: grid;
  gap: 18px;
  padding-top: 6px;
}

.page-products .pd-hero h1 {
  font-size: clamp(2.35rem, 9vw, 5.2rem);
  line-height: 0.94;
  max-width: 16ch;
}

.page-products .pd-hero-lead {
  max-width: 52ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 242, 234, 0.86);
}

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

.page-products .pd-hero-actions .k1-btn {
  flex: 1 1 auto;
  text-align: center;
}

.page-products .pd-hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 6px 0 0;
  padding: 0;
}

.page-products .pd-hero-facts > div {
  border: 2px solid var(--k1-stand);
  background: rgba(11, 11, 12, 0.78);
  padding: 10px 12px;
  border-radius: var(--k1-radius);
}

.page-products .pd-hero-facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--k1-mist);
}

.page-products .pd-hero-facts dd {
  margin: 4px 0 0;
  font-size: 18px;
  color: var(--k1-chalk);
}

/* ---------- 通用章节 ---------- */
.page-products .pd-section {
  padding: 56px 0;
  border-bottom: 2px solid var(--k1-stand);
}

.page-products .pd-head {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.page-products .pd-head h2 {
  font-size: clamp(1.75rem, 5.4vw, 2.9rem);
  line-height: 1.04;
}

.page-products .pd-head-lead {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--k1-mist);
}

/* ---------- 三档切换 ---------- */
.page-products .pd-tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 8px;
  scrollbar-width: thin;
}

.page-products .k1-tab {
  flex: 0 0 auto;
  padding: 12px 20px;
  border: 2px solid var(--k1-stand);
  border-radius: var(--k1-radius-pill);
  background: var(--k1-concrete);
  color: var(--k1-chalk);
  font-family: var(--k1-font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.18s var(--k1-ease), border-color 0.18s var(--k1-ease), transform 0.18s var(--k1-ease);
}

.page-products .k1-tab:hover {
  border-color: var(--k1-red);
  transform: translateY(-2px);
}

.page-products .k1-tab[aria-selected="true"] {
  background: var(--k1-red);
  border-color: var(--k1-red);
  color: var(--k1-chalk);
}

.page-products .k1-tab:focus-visible {
  outline: 3px solid var(--k1-lime);
  outline-offset: 3px;
}

.page-products .pd-tier-panel {
  margin-top: 16px;
}

.page-products .pd-tier-card {
  border: var(--k1-border-strong);
  border-left-width: 8px;
  background: var(--k1-concrete);
  padding: 22px 20px;
  border-radius: var(--k1-radius);
  box-shadow: var(--k1-shadow);
}

.page-products .pd-tier-panel--1 .pd-tier-card { border-left-color: var(--k1-chalk); }
.page-products .pd-tier-panel--2 .pd-tier-card { border-left-color: var(--k1-green); }
.page-products .pd-tier-panel--3 .pd-tier-card { border-left-color: var(--k1-red); }

.page-products .pd-tier-no {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--k1-mist);
}

.page-products .pd-tier-card h3 {
  font-size: clamp(1.4rem, 5vw, 2rem);
}

.page-products .pd-tier-note {
  margin: 8px 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--k1-mist);
}

.page-products .pd-tier-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pd-tier-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.65;
}

.page-products .pd-tier-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 10px;
  height: 10px;
  background: var(--k1-lime);
  transform: skewX(-12deg);
}

/* ---------- 对比表 ---------- */
.page-products .pd-sub {
  margin: 40px 0 16px;
  font-size: clamp(1.2rem, 3.6vw, 1.6rem);
}

.page-products .pd-compare {
  max-height: 560px;
  overflow: auto;
  border: var(--k1-border);
  border-radius: var(--k1-radius);
  background: var(--k1-concrete);
  box-shadow: var(--k1-shadow);
}

.page-products .pd-compare table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-family: var(--k1-font-mono);
  font-size: 13px;
}

.page-products .pd-compare caption {
  padding: 14px 16px;
  text-align: left;
  font-family: var(--k1-font-body);
  font-size: 13px;
  color: var(--k1-mist);
  border-bottom: 2px solid var(--k1-stand);
}

.page-products .pd-compare th,
.page-products .pd-compare td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--k1-stand);
}

.page-products .pd-compare thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--k1-stand);
  font-family: var(--k1-font-display);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0;
  border-bottom: 3px solid var(--k1-stand);
}

.page-products .pd-compare thead .pd-col-1 { box-shadow: inset 0 -4px 0 var(--k1-chalk); }
.page-products .pd-compare thead .pd-col-2 { box-shadow: inset 0 -4px 0 var(--k1-green); }
.page-products .pd-compare thead .pd-col-3 { box-shadow: inset 0 -4px 0 var(--k1-red); }

.page-products .pd-compare tbody th {
  font-family: var(--k1-font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--k1-chalk);
}

.page-products .pd-compare tbody tr:nth-child(even) {
  background: rgba(43, 45, 49, 0.32);
}

.page-products .pd-compare tbody tr:hover {
  background: rgba(230, 51, 41, 0.14);
}

.page-products .pd-compare .pd-yes { color: var(--k1-lime); }
.page-products .pd-compare .pd-no { color: var(--k1-mist); }

/* ---------- 数据面板 ---------- */
.page-products .pd-panelmod {
  background:
    linear-gradient(180deg, rgba(31, 122, 90, 0.08), transparent 40%),
    var(--k1-black);
}

.page-products .pd-panelmod-grid {
  display: grid;
  gap: 24px;
}

.page-products .pd-acc-item {
  margin-bottom: 10px;
  border: 2px solid var(--k1-stand);
  border-radius: var(--k1-radius);
  background: var(--k1-concrete);
  transition: border-color 0.18s var(--k1-ease), box-shadow 0.18s var(--k1-ease);
}

.page-products .pd-acc-item[open] {
  border-color: var(--k1-red);
  box-shadow: 6px 6px 0 rgba(230, 51, 41, 0.2);
}

.page-products .pd-acc-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--k1-font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--k1-chalk);
}

.page-products .pd-acc-item summary::-webkit-details-marker { display: none; }

.page-products .pd-acc-item summary:focus-visible {
  outline: 3px solid var(--k1-lime);
  outline-offset: -3px;
}

.page-products .pd-acc-idx {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--k1-green);
}

.page-products .pd-acc-item[open] .pd-acc-idx { color: var(--k1-lime); }

.page-products .pd-acc-item p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--k1-mist);
}

/* ---------- 图片框 ---------- */
.page-products .pd-fig {
  margin: 0;
  border: var(--k1-border-strong);
  border-radius: var(--k1-radius);
  overflow: hidden;
  background: var(--k1-concrete);
  box-shadow: var(--k1-shadow);
}

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

.page-products .pd-fig figcaption {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--k1-mist);
  border-top: 2px solid var(--k1-stand);
}

/* ---------- 会员中心 ---------- */
.page-products .pd-center-grid {
  display: grid;
  gap: 28px;
}

.page-products .pd-center-grid h2 {
  font-size: clamp(1.75rem, 5.4vw, 2.9rem);
  line-height: 1.04;
  margin: 10px 0 12px;
}

.page-products .pd-center-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--k1-mist);
}

.page-products .pd-keylist {
  list-style: none;
  margin: 20px 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pd-keylist li {
  padding: 4px 0 4px 14px;
  border-left: 3px solid var(--k1-stand);
  font-size: 15px;
  line-height: 1.7;
  color: var(--k1-chalk);
}

.page-products .pd-keylist .k1-mono {
  color: var(--k1-lime);
  font-size: 14px;
}

/* ---------- 下载 ---------- */
.page-products .pd-download {
  background:
    radial-gradient(90% 70% at 10% 0%, rgba(168, 255, 62, 0.08), transparent 60%),
    var(--k1-black);
}

.page-products .pd-dl-head {
  display: grid;
  gap: 18px;
  margin-bottom: 24px;
}

.page-products .pd-download h2 {
  font-size: clamp(1.75rem, 5.4vw, 2.9rem);
  line-height: 1.04;
  margin: 10px 0 12px;
}

.page-products .pd-dl-badge {
  display: grid;
  gap: 4px;
  padding: 16px 20px;
  background: var(--k1-lime);
  color: var(--k1-black);
  border: 3px solid var(--k1-black);
  border-radius: var(--k1-radius);
  box-shadow: 8px 8px 0 rgba(168, 255, 62, 0.26);
}

.page-products .pd-dl-badge-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.page-products .pd-dl-badge strong {
  font-size: 30px;
  line-height: 1;
}

.page-products .pd-dl-badge-id {
  font-size: 12px;
}

.page-products .pd-dl-panel {
  margin-top: 14px;
  border: 2px solid var(--k1-stand);
  border-left: 6px solid var(--k1-green);
  border-radius: var(--k1-radius);
  background: var(--k1-concrete);
  padding: 16px 18px;
}

.page-products .pd-dl-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--k1-chalk);
}

.page-products .pd-dl-notes {
  list-style: none;
  margin: 20px 0 26px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pd-dl-notes li {
  padding: 12px 14px;
  border: 2px solid var(--k1-stand);
  border-radius: var(--k1-radius);
  background: var(--k1-concrete);
  font-size: 14px;
  line-height: 1.7;
  color: var(--k1-chalk);
}

.page-products .pd-dl-cta {
  margin: 24px 0 0;
}

/* ---------- 流程 ---------- */
.page-products .pd-flow-grid {
  display: grid;
  gap: 28px;
}

.page-products .pd-steps {
  list-style: none;
  counter-reset: pdstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pd-steps li {
  position: relative;
  padding: 16px 18px 16px 62px;
  border: 2px solid var(--k1-stand);
  border-radius: var(--k1-radius);
  background: var(--k1-concrete);
  transition: transform 0.2s var(--k1-ease), border-color 0.2s var(--k1-ease);
}

.page-products .pd-steps li::before {
  counter-increment: pdstep;
  content: "0" counter(pdstep);
  position: absolute;
  left: 16px;
  top: 14px;
  font-family: var(--k1-font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--k1-red);
}

.page-products .pd-steps li:hover {
  transform: translateY(-4px);
  border-color: var(--k1-red);
}

.page-products .pd-steps h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.page-products .pd-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--k1-mist);
}

/* ---------- 选档 ---------- */
.page-products .pd-fit-grid {
  display: grid;
  gap: 16px;
}

.page-products .pd-fit-card {
  display: grid;
  gap: 10px;
  padding: 22px 20px;
  border: var(--k1-border-strong);
  border-top-width: 8px;
  border-radius: var(--k1-radius);
  background: var(--k1-concrete);
  box-shadow: var(--k1-shadow);
}

.page-products .pd-fit-card--1 { border-top-color: var(--k1-chalk); }
.page-products .pd-fit-card--2 { border-top-color: var(--k1-green); }
.page-products .pd-fit-card--3 { border-top-color: var(--k1-red); }

.page-products .pd-fit-card h3 {
  font-size: clamp(1.15rem, 4vw, 1.35rem);
}

.page-products .pd-fit-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--k1-mist);
}

.page-products .pd-fit-pick {
  margin: 4px 0 0;
  font-family: var(--k1-font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--k1-lime);
}

.page-products .pd-upgrade {
  margin-top: 24px;
  padding: 18px;
  border: 2px dashed var(--k1-stand);
  border-radius: var(--k1-radius);
  display: grid;
  gap: 12px;
}

.page-products .pd-upgrade p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--k1-chalk);
}

/* ---------- 收尾 ---------- */
.page-products .pd-cta {
  padding: 52px 0 68px;
  background:
    linear-gradient(120deg, rgba(230, 51, 41, 0.22), transparent 55%),
    var(--k1-concrete);
  border-top: 3px solid var(--k1-red);
}

.page-products .pd-cta-inner {
  display: grid;
  gap: 22px;
}

.page-products .pd-cta h2 {
  font-size: clamp(1.8rem, 5.6vw, 2.8rem);
  line-height: 1.04;
  margin: 10px 0 12px;
}

.page-products .pd-cta p {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 242, 234, 0.84);
}

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

.page-products .pd-cta-actions .k1-btn {
  flex: 1 1 auto;
  text-align: center;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .pd-hero {
    padding: 34px 0 60px;
  }

  .page-products .pd-hero-actions .k1-btn,
  .page-products .pd-cta-actions .k1-btn {
    flex: 0 0 auto;
  }

  .page-products .pd-hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pd-section {
    padding: 72px 0;
  }

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

  .page-products .pd-cta-actions {
    justify-content: flex-start;
  }
}

@media (min-width: 900px) {
  .page-products .pd-hero {
    padding: 40px 0 76px;
  }

  .page-products .pd-hero h1 {
    max-width: 15ch;
  }

  .page-products .pd-hero-lead {
    font-size: 18px;
  }

  .page-products .pd-stairs {
    width: 58%;
    height: 74%;
  }

  .page-products .pd-head--split {
    grid-template-columns: 1fr 1fr;
    align-items: end;
    gap: 32px;
  }

  .page-products .pd-panelmod-grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
    gap: 34px;
  }

  .page-products .pd-center-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 44px;
  }

  .page-products .pd-dl-head {
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: 32px;
  }

  .page-products .pd-flow-grid {
    grid-template-columns: 1fr 0.78fr;
    align-items: start;
    gap: 40px;
  }

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

  .page-products .pd-cta-inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .k1-tab,
  .page-products .pd-steps li,
  .page-products .pd-acc-item {
    transition: none;
  }

  .page-products .pd-steps li:hover,
  .page-products .k1-tab:hover {
    transform: none;
  }
}
<<<END>>>