.page-products {
  --prj-line: var(--line-600);
  --prj-gap: clamp(16px, 2.2vw, 28px);
  --prj-r: var(--radius-md);
  background: var(--void-000);
  color: var(--paper-000);
  padding-bottom: clamp(48px, 7vw, 104px);
}

.page-products .section {
  padding-block: clamp(40px, 5.6vw, 84px);
}

/* ---------- 首屏 ---------- */

.page-products .prj-hero {
  padding-top: clamp(20px, 3.4vw, 48px);
}

.page-products .prj-hero .breadcrumb {
  margin-bottom: clamp(28px, 4vw, 52px);
  color: var(--slate-500);
  font-size: 12px;
}

.page-products .prj-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-products .prj-hero__lead h1 {
  margin: 12px 0 20px;
  font-size: clamp(30px, 5.6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  max-width: 17ch;
}

.page-products .prj-hero__lead .lede {
  max-width: 62ch;
  margin: 0;
  color: var(--paper-400);
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.85;
}

.page-products .prj-hero__aside {
  display: grid;
  gap: 14px;
  align-content: end;
}

.page-products .prj-hero__aside .stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--amber-700);
  border-radius: var(--radius-pill);
  background: rgba(255, 180, 58, 0.07);
  justify-self: start;
  font-size: 12px;
  color: var(--amber-400);
}

.page-products .prj-hero__aside .stamp__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber-400);
}

.page-products .prj-hero__note {
  margin: 0;
  max-width: 34ch;
  color: var(--paper-400);
  font-size: 14px;
  line-height: 1.8;
}

/* ---------- 项目导览 ---------- */

.page-products .prj-band__figure {
  margin: clamp(26px, 3.6vw, 44px) 0 0;
}

.page-products .prj-band__figure img,
.page-products .prj-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-products .prj-index {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--prj-line);
}

.page-products .prj-index li {
  border-bottom: 1px solid var(--prj-line);
}

.page-products .prj-index a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "n t"
    "n h";
  column-gap: clamp(14px, 2vw, 24px);
  row-gap: 4px;
  padding: clamp(15px, 2vw, 20px) 2px;
  color: var(--paper-000);
  text-decoration: none;
  transition: padding-left 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .prj-index a:hover,
.page-products .prj-index a:focus-visible {
  padding-left: 10px;
  background: rgba(59, 224, 209, 0.05);
}

.page-products .prj-index__n {
  grid-area: n;
  align-self: start;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-400);
}

.page-products .prj-index__t {
  grid-area: t;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 700;
  line-height: 1.35;
}

.page-products .prj-index__hint {
  grid-area: h;
  color: var(--paper-400);
  font-size: 14px;
  line-height: 1.6;
}

/* ---------- 折叠项目 ---------- */

.page-products .prj-list {
  display: grid;
  gap: 0;
  border-bottom: 1px solid var(--prj-line);
}

.page-products .prj-fold {
  border-top: 1px solid var(--prj-line);
  transition: background-color 220ms var(--ease);
}

.page-products .prj-fold[open] {
  background: linear-gradient(180deg, rgba(59, 224, 209, 0.055), rgba(59, 224, 209, 0) 280px);
}

.page-products .prj-fold__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "no name chev"
    "no time chev";
  align-items: center;
  column-gap: clamp(12px, 2vw, 22px);
  row-gap: 6px;
  padding: clamp(18px, 2.6vw, 30px) 2px;
  cursor: pointer;
  list-style: none;
}

.page-products .prj-fold__head::-webkit-details-marker {
  display: none;
}

.page-products .prj-fold__no {
  grid-area: no;
  font-size: clamp(19px, 2.8vw, 28px);
  letter-spacing: 0.02em;
  color: var(--slate-500);
  transition: color 200ms var(--ease);
}

.page-products .prj-fold[open] .prj-fold__no {
  color: var(--cyan-400);
}

.page-products .prj-fold__name {
  grid-area: name;
  font-size: clamp(18px, 2.4vw, 29px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.page-products .prj-fold__time {
  grid-area: time;
  justify-self: start;
  align-self: center;
  padding: 4px 11px;
  border: 1px solid var(--amber-700);
  border-radius: var(--radius-pill);
  background: rgba(255, 180, 58, 0.07);
  color: var(--amber-400);
  font-size: 11px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .prj-fold__chev {
  grid-area: chev;
  position: relative;
  justify-self: end;
  align-self: center;
  width: 22px;
  height: 22px;
}

.page-products .prj-fold__chev::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--paper-400);
  border-bottom: 1.5px solid var(--paper-400);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-products .prj-fold[open] .prj-fold__chev::before {
  transform: rotate(-135deg) translate(-2px, -2px);
  border-color: var(--cyan-400);
}

.page-products .prj-fold__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.2vw, 40px);
  padding: 0 2px clamp(30px, 4.4vw, 54px);
}

.page-products .prj-lead {
  margin: 0 0 clamp(20px, 2.8vw, 30px);
  max-width: 62ch;
  color: var(--paper-400);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
}

.page-products .prj-fold__side {
  align-content: start;
}

/* ---------- 步骤 ---------- */

.page-products .prj-steps {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
}

.page-products .prj-steps > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 20px);
  padding: clamp(14px, 2vw, 20px) 0;
  border-top: 1px solid var(--prj-line);
}

.page-products .prj-steps > li:last-child {
  border-bottom: 1px solid var(--prj-line);
}

.page-products .prj-steps__n {
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-400);
}

.page-products .prj-steps__t {
  margin: 0 0 6px;
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-000);
}

.page-products .prj-steps > li > div > p:last-child {
  margin: 0;
  max-width: 58ch;
  color: var(--paper-400);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
}

/* ---------- 图 / 提示 / 侧栏资料 ---------- */

.page-products .prj-figure {
  margin: clamp(22px, 3vw, 34px) 0;
}

.page-products .prj-note {
  margin-top: clamp(20px, 2.8vw, 30px);
  max-width: 64ch;
  padding: clamp(16px, 2vw, 22px) clamp(16px, 2.2vw, 26px);
  border-left: 2px solid var(--amber-700);
  border-radius: 0 var(--prj-r) var(--prj-r) 0;
  background: rgba(255, 180, 58, 0.05);
}

.page-products .prj-note__t {
  margin: 0 0 8px;
  color: var(--amber-400);
  font-size: 14px;
  font-weight: 700;
}

.page-products .prj-note p:last-child {
  margin: 0;
  color: var(--paper-400);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
}

.page-products .prj-facts {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-products .prj-facts > div {
  display: grid;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--prj-line);
}

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

.page-products .prj-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  color: var(--slate-500);
}

.page-products .prj-facts dd {
  margin: 0;
  color: var(--paper-000);
  font-size: 14px;
  line-height: 1.7;
}

/* ---------- 动作 ---------- */

.page-products .prj-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-products .copy-btn {
  border: 1px solid var(--prj-line);
  background: transparent;
  color: var(--paper-000);
  font-family: var(--font-sans);
  cursor: pointer;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-products .copy-btn:hover,
.page-products .copy-btn:focus-visible {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

.page-products .copy-btn.is-copied {
  border-color: var(--cyan-400);
  color: var(--cyan-400);
}

/* ---------- 时间戳说明 ---------- */

.page-products .prj-reading {
  background: var(--ink-800);
}

.page-products .prj-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.6vw, 30px);
  margin-top: clamp(22px, 3vw, 38px);
}

.page-products .prj-tl {
  padding-top: 18px;
  border-top: 1px solid var(--prj-line);
}

.page-products .prj-tl__n {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan-400);
}

.page-products .prj-tl h3 {
  margin: 0 0 10px;
  font-size: clamp(17px, 1.9vw, 21px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-products .prj-tl p:last-child {
  margin: 0;
  color: var(--paper-400);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 组合路径 ---------- */

.page-products .prj-combo__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vw, 28px);
  margin-top: clamp(22px, 3vw, 38px);
}

.page-products .prj-combo__item {
  padding: clamp(22px, 2.8vw, 34px);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
}

.page-products .prj-combo__item h3 {
  margin: 10px 0 18px;
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-products .prj-combo__steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .prj-combo__steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  color: var(--paper-400);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .prj-combo__steps .mono {
  padding-top: 4px;
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* ---------- 底部行动区 ---------- */

.page-products .prj-cta {
  margin-top: clamp(32px, 4.4vw, 60px);
  padding: clamp(26px, 3.6vw, 48px);
  border: 1px solid var(--prj-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(125deg, rgba(18, 99, 95, 0.42), rgba(5, 7, 11, 0) 68%);
}

.page-products .prj-cta h2 {
  margin: 10px 0 16px;
  font-size: clamp(21px, 2.8vw, 34px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.02em;
  max-width: 24ch;
}

.page-products .prj-cta > p {
  margin: 0;
  max-width: 58ch;
  color: var(--paper-400);
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.85;
}

.page-products .prj-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.6vw, 28px);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-products .prj-fold__head {
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    grid-template-areas: "no name time chev";
    align-items: baseline;
    row-gap: 0;
  }

  .page-products .prj-fold__time {
    align-self: center;
  }

  .page-products .prj-fold__chev {
    align-self: center;
  }

  .page-products .prj-index a {
    grid-template-columns: auto minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas: "n t h";
    align-items: baseline;
  }

  .page-products .prj-index__hint {
    text-align: right;
  }
}

@media (min-width: 900px) {
  .page-products .prj-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-products .prj-hero__aside {
    padding-left: clamp(20px, 2.6vw, 34px);
    border-left: 1px solid var(--prj-line);
  }

  .page-products .prj-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(22px, 2.8vw, 36px);
  }

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

@media (min-width: 1000px) {
  .page-products .prj-fold__body {
    grid-template-columns: minmax(0, 1fr) 272px;
    gap: clamp(30px, 3.6vw, 56px);
  }

  .page-products .prj-fold__side {
    padding-left: clamp(20px, 2.4vw, 30px);
    border-left: 1px solid var(--prj-line);
  }
}
<<<END>>>