.page-products {
  --pp-pad: clamp(52px, 7.5vw, 104px);
  --pp-gap: clamp(16px, 2.2vw, 28px);
  background: var(--paper);
  color: var(--graphite);
}

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

.page-products .sec-head {
  max-width: 700px;
}

.page-products h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: var(--fs-lg);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 10px 0 12px;
}

.page-products h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.42;
  color: var(--ink);
  margin: 0;
}

.page-products .sec-sub {
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
  margin: 0;
}

.page-products a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding-top: calc(var(--head-bar) + 26px);
  overflow: hidden;
}

.page-products .tools-hero::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--gold), transparent 70%);
  pointer-events: none;
}

.page-products .tools-hero .crumbs {
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-products .tools-hero .crumbs a,
.page-products .tools-hero .crumbs li {
  color: rgba(244, 238, 226, 0.68);
}

.page-products .tools-hero .crumbs li[aria-current] {
  color: var(--gold);
}

.page-products .tools-hero__inner {
  display: grid;
  gap: 36px;
  padding-bottom: clamp(34px, 5vw, 64px);
}

.page-products .tools-hero .eyebrow {
  color: var(--gold);
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
}

.page-products .tools-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(31px, 5.6vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 18px;
  max-width: 16em;
}

.page-products .tools-hero__lede {
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.78;
  color: rgba(244, 238, 226, 0.86);
  max-width: 34em;
  margin: 0;
}

.page-products .tools-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .tools-hero__dial {
  border: 1px solid rgba(200, 162, 74, 0.42);
  background: rgba(22, 50, 79, 0.74);
  padding: 20px 18px 18px;
}

.page-products .tools-hero__dial-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(200, 162, 74, 0.28);
}

.page-products .tools-hero__dial-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .tools-hero__dial-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(244, 238, 226, 0.9);
}

.page-products .tools-hero__dial-list .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-hi);
  flex: 0 0 auto;
}

.page-products .tools-hero__band {
  margin: 0;
  border-top: 1px solid rgba(200, 162, 74, 0.45);
}

.page-products .tools-hero__band img {
  width: 100%;
  height: clamp(160px, 24vw, 300px);
  object-fit: cover;
}

@media (min-width: 920px) {
  .page-products .tools-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: 48px;
  }
}

/* ---------- 服务范围 ---------- */
.page-products .range-sec {
  padding: var(--pp-pad) 0;
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 30px 0 0;
}

.page-products .filter-live {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--jade);
  margin: 14px 0 0;
  min-height: 18px;
}

.page-products .scope-grid {
  display: grid;
  gap: var(--pp-gap);
  margin-top: 24px;
}

.page-products .scope-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 22px;
  background: var(--paper-2);
  min-width: 0;
}

.page-products .scope-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin: 0;
}

.page-products .scope-card__desc {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--graphite);
  margin: 0;
}

.page-products .scope-card__cases {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
}

.page-products .scope-card__cases li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-products .scope-card__cases li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--jade);
}

.page-products .scope-card__link {
  margin-top: auto;
  padding-top: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  align-self: flex-start;
  transition: color var(--dur) var(--ease);
}

.page-products .scope-card__link:hover,
.page-products .scope-card__link:focus-visible {
  color: var(--vermilion);
}

@media (min-width: 700px) {
  .page-products .scope-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-products .scope-card:nth-child(1) { grid-column: span 4; }
  .page-products .scope-card:nth-child(2) { grid-column: span 2; }
  .page-products .scope-card:nth-child(3) { grid-column: span 2; }
  .page-products .scope-card:nth-child(4) { grid-column: span 4; }
}

/* ---------- 屏幕对照 ---------- */
.page-products .frame-sec {
  padding: var(--pp-pad) 0;
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-products .frame-fig {
  margin: 32px 0 0;
  border: 1px solid var(--rule);
  background: var(--ink);
}

.page-products .frame-fig img {
  width: 100%;
  height: clamp(160px, 22vw, 250px);
  object-fit: cover;
}

.page-products .frame-row {
  display: grid;
  gap: var(--pp-gap);
  margin-top: 32px;
}

.page-products .device {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-products .device__cap {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.page-products .device__screen {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 12px 10px;
  border: 1px solid var(--rule);
  background: var(--paper);
  aspect-ratio: 9 / 15;
  overflow: hidden;
}

.page-products .device--390 .device__screen { aspect-ratio: 9 / 17; }
.page-products .device--768 .device__screen { aspect-ratio: 3 / 4; }

.page-products .wire {
  display: block;
  width: 100%;
  height: 7px;
  background: var(--rule);
}

.page-products .wire--bar {
  height: 13px;
  background: var(--ink);
}

.page-products .wire--h1 {
  height: 18px;
  width: 88%;
  background: var(--ink-2);
}

.page-products .wire--h1.wire--short { width: 56%; }

.page-products .wire--p { height: 6px; }
.page-products .wire--p.wire--short { width: 68%; }

.page-products .wire--chips {
  height: 15px;
  background: var(--gold);
  opacity: 0.55;
}

.page-products .wire--block {
  margin-top: auto;
  height: 54px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
}

.page-products .wire--block.wire--tall { height: 92px; }
.page-products .wire--block.wire--wide { height: 78px; }

.page-products .wire--split {
  display: flex;
  gap: 8px;
  height: auto;
  background: none;
  margin-top: 4px;
}

.page-products .wire--split .wire--h1 {
  width: 62%;
  height: 22px;
}

.page-products .wire--side {
  flex: 1 1 auto;
  height: 40px;
  background: var(--jade);
  opacity: 0.5;
}

.page-products .device__note {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--graphite);
  margin: 0;
}

@media (min-width: 860px) {
  .page-products .frame-row {
    grid-template-columns: 0.82fr 1fr 1.72fr;
    align-items: start;
    gap: 26px;
  }
}

@media (max-width: 859px) {
  .page-products .device {
    max-width: 340px;
  }
  .page-products .device__screen {
    aspect-ratio: 4 / 5;
  }
}

/* ---------- 使用路径 ---------- */
.page-products .path-sec {
  padding: var(--pp-pad) 0;
}

.page-products .skilltree {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-products .skilltree__node {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  min-width: 0;
}

.page-products .skilltree__node h3 {
  font-size: 17px;
}

.page-products .skilltree__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .skilltree__more {
  margin-top: auto;
}

.page-products .skilltree__more summary {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--jade);
  cursor: pointer;
  min-height: 28px;
  display: flex;
  align-items: center;
  list-style: none;
}

.page-products .skilltree__more summary::-webkit-details-marker { display: none; }

.page-products .skilltree__more summary::after {
  content: "+";
  margin-left: 6px;
  color: var(--gold);
  font-size: 14px;
}

.page-products .skilltree__more[open] summary::after { content: "–"; }

.page-products .skilltree__more p {
  font-size: 14px;
  line-height: 1.72;
  color: var(--graphite);
  margin: 10px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
}

.page-products .skilltree__link {
  flex: 0 0 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
}

.page-products .skilltree__link svg {
  width: 10px;
  height: 26px;
  transform: rotate(90deg);
}

.page-products .path-branch {
  margin: 28px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--jade);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--graphite);
  max-width: 44em;
}

.page-products .path-branch a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

.page-products .path-fig {
  margin: 36px 0 0;
  border: 1px solid var(--rule);
}

.page-products .path-fig img {
  width: 100%;
  height: clamp(200px, 30vw, 360px);
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-products .skilltree {
    flex-direction: row;
    align-items: stretch;
  }
  .page-products .skilltree__node { flex: 1 1 0; }
  .page-products .skilltree__link {
    flex: 0 0 36px;
  }
  .page-products .skilltree__link svg {
    width: 36px;
    height: 10px;
    transform: none;
  }
}

/* ---------- 反馈记录 ---------- */
.page-products .fb-sec {
  padding: var(--pp-pad) 0;
  background: var(--ink);
  color: rgba(244, 238, 226, 0.86);
}

.page-products .fb-sec h2 { color: var(--paper); }
.page-products .fb-sec .sec-sub { color: rgba(244, 238, 226, 0.78); }
.page-products .fb-sec .eyebrow { color: var(--gold); }

.page-products .fb-sec__grid {
  display: grid;
  gap: 40px;
}

.page-products .fb-sec__main { min-width: 0; }

.page-products .fb-steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .fb-steps li {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(216, 207, 188, 0.22);
}

.page-products .fb-steps li:last-child {
  border-bottom: 1px solid rgba(216, 207, 188, 0.22);
}

.page-products .fb-steps__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 3px;
}

.page-products .fb-steps h3 {
  color: var(--paper);
  font-size: 17px;
  margin-bottom: 6px;
}

.page-products .fb-steps p {
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(244, 238, 226, 0.78);
  margin: 0;
}

.page-products .fb-sec__more {
  margin: 26px 0 0;
  font-size: 15px;
  line-height: 1.74;
  color: rgba(244, 238, 226, 0.8);
}

.page-products .fb-sec__more a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(231, 201, 122, 0.5);
}

.page-products .fb-sec__fig {
  margin: 0;
  border: 1px solid rgba(200, 162, 74, 0.35);
}

.page-products .fb-sec__fig img {
  width: 100%;
  height: clamp(240px, 34vw, 460px);
  object-fit: cover;
}

@media (min-width: 940px) {
  .page-products .fb-sec__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: 56px;
  }
  .page-products .fb-sec__fig img { height: 100%; min-height: 380px; }
}

/* ---------- 编号索引 ---------- */
.page-products .idx-sec {
  padding: var(--pp-pad) 0;
}

.page-products .idx-sec__grid {
  display: grid;
  gap: 40px;
}

.page-products .idx-sec__main { min-width: 0; }

.page-products .idx-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}

.page-products .idx-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.page-products .idx-item__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--gold);
  min-width: 34px;
}

.page-products .idx-item__name {
  flex: 1 1 160px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  min-width: 0;
}

.page-products .idx-item__desc {
  flex: 1 1 200px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--graphite);
  margin: 0;
  min-width: 0;
}

.page-products .idx-sec__side {
  display: grid;
  gap: 20px;
  align-content: start;
  min-width: 0;
}

.page-products .idx-fig {
  margin: 0;
  border: 1px solid var(--rule);
}

.page-products .idx-fig img {
  width: 100%;
  height: clamp(190px, 26vw, 300px);
  object-fit: cover;
}

.page-products .ver-card {
  border: 1px solid var(--rule);
  border-top: 3px solid var(--jade);
  background: var(--paper-2);
  padding: 22px 20px;
}

.page-products .ver-card__title {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-products .ver-card p {
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--graphite);
  margin: 0;
}

.page-products .ver-card__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--rule);
  display: grid;
  gap: 8px;
}

.page-products .ver-card__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 13.5px;
  color: var(--graphite);
}

.page-products .ver-card__list .num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--vermilion);
  min-width: 44px;
}

@media (min-width: 940px) {
  .page-products .idx-sec__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
    gap: 56px;
  }
}

/* ---------- 收尾 ---------- */
.page-products .next-sec {
  padding: clamp(34px, 5vw, 60px) 0 clamp(56px, 8vw, 96px);
  background: var(--paper-2);
  border-top: 1px solid var(--rule);
}

.page-products .next-sec__inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-products .next-sec__text {
  font-size: 16px;
  line-height: 1.78;
  color: var(--graphite);
  margin: 0;
  max-width: 46em;
}

.page-products .next-sec__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 860px) {
  .page-products .next-sec__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
  }
  .page-products .next-sec__text { flex: 1 1 auto; }
  .page-products .next-sec__acts { flex: 0 0 auto; }
}

/* ---------- 小屏兜底 ---------- */
@media (max-width: 520px) {
  .page-products .idx-item__desc { flex-basis: 100%; }
  .page-products .tools-hero__acts .btn { flex: 1 1 auto; justify-content: center; }
  .page-products .filter-bar { gap: 6px; }
}
</main>