.page-products {
  background: var(--ink);
  color: var(--white);
  --prod-gap: clamp(20px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(18px, 3vw, 28px) 0 clamp(36px, 6vw, 66px);
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -18%;
  right: -18%;
  width: min(82vw, 880px);
  aspect-ratio: 1.1 / 1;
  background:
    radial-gradient(circle at 32% 34%, rgba(37, 217, 232, 0.20), transparent 62%),
    linear-gradient(135deg, rgba(23, 201, 100, 0.32), rgba(23, 201, 100, 0.05) 56%, transparent 80%);
  border-radius: 46% 8% 52% 10% / 40% 10% 44% 12%;
  transform: rotate(-7deg);
  pointer-events: none;
}

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--prod-gap);
  align-items: center;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-products .prod-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.005em;
  margin: 10px 0 16px;
  text-wrap: balance;
}

.page-products .prod-hero h1 em {
  font-style: normal;
  color: var(--signal);
}

.page-products .prod-hero__lead {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--mute);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .prod-hero__stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.page-products .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(19px, 3.2vw, 27px);
  color: var(--signal);
  letter-spacing: -0.01em;
}

.page-products .stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--mute);
}

.page-products .prod-hero__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: 0 26px 64px -34px rgba(4, 18, 15, 0.95);
}

.page-products .prod-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 左索引 + 右内容 ---------- */
.page-products .prod-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-bottom: clamp(40px, 7vw, 84px);
}

.page-products .prod-rail {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 18px 14px;
}

.page-products .prod-rail__title {
  margin: 0 0 12px;
  padding: 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.page-products .prod-rail .chapter-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 4px;
}

.page-products .prod-rail .chapter-nav__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--r-pill);
  color: var(--mute);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
  transition: background 0.24s var(--ease), color 0.24s var(--ease);
}

.page-products .prod-rail .chapter-nav__link:hover,
.page-products .prod-rail .chapter-nav__link:focus-visible {
  background: var(--card-hi);
  color: var(--white);
}

.page-products .prod-rail .chapter-nav__link[aria-current="true"] {
  background: var(--signal);
  color: var(--deep);
  font-weight: 700;
}

.page-products .prod-rail__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  opacity: 0.75;
  min-width: 18px;
}

.page-products .prod-flow {
  min-width: 0;
}

.page-products .prod-flow > .prod-section + .prod-section {
  border-top: 1px solid var(--line);
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: clamp(26px, 4vw, 44px);
}

/* ---------- 章节通用 ---------- */
.page-products .prod-section__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.page-products .prod-section__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--deep);
  background: var(--cyan);
  border-radius: var(--r-pill);
  padding: 3px 10px 4px;
  line-height: 1.2;
}

.page-products .prod-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.6vw, 33px);
  line-height: 1.22;
  letter-spacing: -0.005em;
}

.page-products .prod-section__lead {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mute);
}

.page-products .prod-section__note {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  background: var(--card);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 13.8px;
  line-height: 1.76;
  color: var(--mute);
}

.page-products .prod-media {
  margin: 22px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
}

.page-products .prod-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 01 导出格式 ---------- */
.page-products .prod-formats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .prod-format {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 18px 20px;
}

.page-products .prod-format__ext {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--deep);
  background: var(--signal);
  border-radius: var(--r-pill);
  padding: 3px 11px 4px;
  line-height: 1.2;
}

.page-products .prod-format:nth-child(2) .prod-format__ext {
  background: var(--cyan);
}

.page-products .prod-format:nth-child(3) .prod-format__ext {
  background: var(--amber);
}

.page-products .prod-format h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.page-products .prod-format p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--mute);
}

/* ---------- 02 条目列表 ---------- */
.page-products .prod-rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .prod-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px 16px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
}

.page-products .prod-row__code {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-products .prod-row__title {
  font-size: 14.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--white);
}

.page-products .prod-row__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
  white-space: nowrap;
}

.page-products .prod-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-products .prod-status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
}

.page-products .prod-status--ready::before {
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(23, 201, 100, 0.18);
}

.page-products .prod-status--working::before {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 176, 32, 0.18);
}

/* ---------- 03 同页对照 ---------- */
.page-products .prod-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.page-products .prod-compare__panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px;
}

.page-products .prod-compare__panel h3 {
  margin: 12px 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
}

.page-products .prod-compare__panel p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--mute);
}

/* ---------- 04 编号 ---------- */
.page-products .prod-code {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 10px;
  margin: 4px 0 4px;
}

.page-products .prod-code__segment {
  flex: 1 1 132px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 13px 16px;
}

.page-products .prod-code__value {
  font-family: var(--font-mono);
  font-size: clamp(19px, 3vw, 23px);
  font-weight: 600;
  color: var(--signal);
  letter-spacing: 0.01em;
}

.page-products .prod-code__label {
  font-size: 12px;
  color: var(--mute);
}

.page-products .prod-code__sep {
  align-self: center;
  font-family: var(--font-mono);
  color: var(--line);
}

/* ---------- 05 状态 ---------- */
.page-products .prod-statuses {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .prod-status-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 16px 18px 18px;
}

.page-products .prod-status-card .tag {
  align-self: flex-start;
}

.page-products .prod-status-card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--mute);
}

.page-products .prod-batch {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: linear-gradient(120deg, rgba(255, 176, 32, 0.12), rgba(23, 201, 100, 0.10) 62%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 20px 22px;
}

.page-products .prod-batch__copy {
  min-width: 0;
  flex: 1 1 320px;
}

.page-products .prod-batch__copy h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.3;
}

.page-products .prod-batch__copy p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--mute);
  max-width: 52ch;
}

/* ---------- 06 移动端 ---------- */
.page-products .prod-mobile {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.page-products .prod-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-step {
  position: relative;
  padding: 0 0 26px 46px;
}

.page-products .prod-step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 34px;
  bottom: 0;
  width: 1px;
  background: var(--line);
}

.page-products .prod-step:last-child {
  padding-bottom: 0;
}

.page-products .prod-step:last-child::before {
  display: none;
}

.page-products .prod-step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 31px;
  height: 31px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--signal);
  color: var(--deep);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.page-products .prod-step h3 {
  margin: 2px 0 6px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
}

.page-products .prod-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--mute);
}

.page-products .prod-mobile__figure {
  margin: 0;
  max-width: 340px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--card);
}

.page-products .prod-mobile__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 尾部导航 ---------- */
.page-products .prod-tail {
  background: linear-gradient(180deg, var(--char), var(--ink));
  border-top: 1px solid var(--line);
  padding: clamp(36px, 6vw, 66px) 0;
}

.page-products .prod-tail__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.25;
}

.page-products .prod-tail__links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .prod-tail__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px;
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--white);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-products .prod-tail__link:hover,
.page-products .prod-tail__link:focus-visible {
  border-color: var(--signal);
  background: var(--card-hi);
  transform: translateY(-2px);
}

.page-products .prod-tail__link-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .prod-tail__link strong {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.4;
}

.page-products .prod-tail__link span:last-child {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .prod-formats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .prod-tail__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-products .prod-row {
    grid-template-columns: minmax(150px, 190px) minmax(0, 1fr) auto;
  }
  .page-products .prod-statuses {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 680px) {
  .page-products .prod-formats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-products .prod-compare {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
  .page-products .prod-mobile {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 32px;
  }
  .page-products .prod-mobile__figure {
    max-width: none;
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(28px, 4vw, 52px);
  }
}

@media (min-width: 960px) {
  .page-products .prod-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(30px, 4vw, 54px);
    align-items: start;
  }
  .page-products .prod-rail {
    position: sticky;
    top: calc(var(--head-h) + 18px);
  }
  .page-products .prod-tail__links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-tail__link,
  .page-products .prod-rail .chapter-nav__link {
    transition: none;
  }
  .page-products .prod-tail__link:hover,
  .page-products .prod-tail__link:focus-visible {
    transform: none;
  }
}
<<<END>>>