/* ============ 服务与下载 · 页面专属样式 ============ */
.page-products {
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
}

/* ---------- 面包屑 ---------- */
.page-products .pp-crumb {
  border-bottom: 1px solid var(--line);
  padding: clamp(10px, 1.6vw, 16px) 0;
}
.page-products .pp-crumb .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}
.page-products .pp-crumb .breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: 8px;
}
.page-products .pp-crumb .breadcrumb__list li + li::before {
  content: "/";
  color: var(--line);
}
.page-products .pp-crumb .breadcrumb__list a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-products .pp-crumb .breadcrumb__list a:hover,
.page-products .pp-crumb .breadcrumb__list a:focus-visible {
  color: var(--bamboo);
  border-bottom-color: var(--bamboo);
}
.page-products .pp-crumb .breadcrumb__list [aria-current="page"] {
  color: var(--text);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  background:
    radial-gradient(120% 150% at 88% 6%, rgba(31, 122, 92, .38) 0%, rgba(31, 122, 92, 0) 58%),
    var(--ink);
  color: var(--on-ink);
  padding: clamp(44px, 7.5vw, 94px) 0 clamp(40px, 6vw, 78px);
  overflow: hidden;
}
.page-products .pp-hero::before {
  content: "";
  position: absolute;
  left: -10%;
  top: -30%;
  width: 60%;
  height: 160%;
  background: repeating-linear-gradient(
    115deg,
    rgba(185, 106, 50, .12) 0 3px,
    transparent 3px 26px
  );
  pointer-events: none;
}
.page-products .pp-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--copper) 0 18%,
    transparent 18% 22%,
    var(--bamboo) 22% 58%,
    transparent 58% 62%,
    var(--gold) 62% 100%);
}
.page-products .pp-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}
.page-products .pp-hero__eyebrow {
  display: inline-block;
  color: var(--bamboo-bright);
  letter-spacing: .16em;
  margin-bottom: 16px;
}
.page-products .pp-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4.6vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--on-ink);
  max-width: 20ch;
}
.page-products .pp-hero__lede {
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.8;
  color: var(--on-ink-soft);
  max-width: 46ch;
  margin: 0 0 26px;
}
.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-products .pp-btn {
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 600;
}
.page-products .pp-btn--outline {
  background: transparent;
  color: var(--on-ink);
  border: 1px solid rgba(243, 237, 225, .42);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-products .pp-btn--outline:hover,
.page-products .pp-btn--outline:focus-visible {
  border-color: var(--bamboo-bright);
  color: var(--bamboo-bright);
}

/* 首屏数字带 */
.page-products .pp-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}
.page-products .pp-facts__cell {
  background: rgba(12, 36, 30, .68);
  padding: 16px 14px 18px;
}
.page-products .pp-facts__cell dt {
  color: var(--on-ink-faint);
  margin: 0 0 8px;
}
.page-products .pp-facts__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.1;
  color: var(--bamboo-bright);
  font-weight: 600;
}
.page-products .pp-facts__val span {
  font-size: 12.5px;
  font-family: var(--font-body);
  color: var(--on-ink-soft);
  margin-left: 4px;
  font-weight: 400;
}

/* ---------- 主布局：左技能树 + 右内容 ---------- */
.page-products .pp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 42px);
  padding: clamp(34px, 5vw, 72px) 0 clamp(40px, 6vw, 80px);
}

.page-products .pp-rail {
  min-width: 0;
}

.page-products .pp-tree {
  position: relative;
  display: block;
  background: var(--paper-2);
  border-left: 3px solid var(--copper);
  padding: 20px 16px 18px;
  width: auto;
}
.page-products .pp-tree__title {
  margin: 0 0 14px;
  color: var(--muted);
  letter-spacing: .14em;
}
.page-products .pp-tree__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  display: grid;
  gap: 2px;
}
.page-products .pp-tree__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: linear-gradient(180deg, var(--bamboo) 0%, var(--bamboo) 52%, var(--gold) 100%);
  opacity: .55;
}
.page-products .pp-tree__item {
  position: relative;
}
.page-products .pp-tree__link {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 10px;
  padding: 10px 8px 10px 0;
  color: var(--text);
  text-decoration: none;
  border: 0;
  background: none;
  transition: color var(--dur) var(--ease);
}
.page-products .pp-tree__link::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 15px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bamboo);
  box-shadow: 0 0 0 3px var(--paper-2);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.page-products .pp-tree__num {
  font-size: 12px;
  color: var(--copper);
  align-self: center;
  letter-spacing: .08em;
}
.page-products .pp-tree__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  transition: color var(--dur) var(--ease);
}
.page-products .pp-tree__dep {
  grid-column: 2;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}
.page-products .pp-tree__link:hover .pp-tree__name,
.page-products .pp-tree__link:focus-visible .pp-tree__name {
  color: var(--bamboo);
}
.page-products .pp-tree__link[aria-current="true"] .pp-tree__name {
  color: var(--bamboo);
}
.page-products .pp-tree__link[aria-current="true"]::before {
  background: var(--bamboo-bright);
  box-shadow: 0 0 0 3px var(--paper-2), 0 0 0 6px rgba(52, 168, 124, .26);
}

.page-products .pp-tree__thumb {
  margin: 16px 0 0;
  height: 92px;
  overflow: hidden;
}
.page-products .pp-tree__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  opacity: .8;
}

/* ---------- 右侧内容区 ---------- */
.page-products .pp-main {
  min-width: 0;
}
.page-products .pp-main > * + * {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-products .section-head {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
}
.page-products .section-head__num {
  display: inline-block;
  font-size: 13px;
  color: var(--copper);
  letter-spacing: .12em;
  padding-bottom: 5px;
  border-bottom: 2px solid var(--copper);
  margin-bottom: 14px;
}
.page-products .section-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.8vw, 32px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  color: var(--text);
}
.page-products .section-head__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

/* 四段读法 */
.page-products .pp-read {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pp-read__item {
  background: var(--paper);
  padding: 16px 18px 18px;
}
.page-products .pp-read__k {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--bamboo);
  margin-bottom: 8px;
}
.page-products .pp-read__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
}

/* 服务卡片 */
.page-products .pp-services {
  padding-top: clamp(6px, 1vw, 12px);
}
.page-products .pp-svc {
  position: relative;
  background: var(--paper-2);
  border-left: 4px solid var(--bamboo);
  padding: clamp(20px, 2.6vw, 30px);
}
.page-products .pp-svc::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 20px solid var(--paper);
  border-left: 20px solid transparent;
}
.page-products .pp-svc + .pp-svc {
  margin-top: clamp(18px, 2.4vw, 28px);
}
.page-products .pp-svc__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--line);
}
.page-products .pp-svc__num {
  font-size: 13px;
  color: var(--copper);
  letter-spacing: .12em;
}
.page-products .pp-svc__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-products .pp-svc__specs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin: 0;
}
.page-products .pp-spec__key {
  margin: 10px 0 0;
  color: var(--muted);
  letter-spacing: .12em;
}
.page-products .pp-spec__val {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text);
}

/* ---------- 四类资料 ---------- */
.page-products .pp-files {
  background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 100%);
  border-top: 1px solid var(--line);
  padding: clamp(40px, 6vw, 84px) 0;
}
.page-products .pp-files__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 1.8vw, 22px);
}
.page-products .pp-file {
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  background: var(--paper);
  border-top: 3px solid var(--line);
  padding: 20px 18px 18px;
}
.page-products .pp-file:nth-child(1) { border-top-color: var(--bamboo); }
.page-products .pp-file:nth-child(2) { border-top-color: var(--bamboo-bright); }
.page-products .pp-file:nth-child(3) { border-top-color: var(--copper); }
.page-products .pp-file:nth-child(4) { border-top-color: var(--gold); }
.page-products .pp-file__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
.page-products .pp-file__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-products .pp-file__count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--bamboo);
  white-space: nowrap;
}
.page-products .pp-file__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 12.5px;
  color: var(--muted);
}
.page-products .pp-file__code {
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 1px 6px;
  border: 1px solid var(--copper);
  border-radius: var(--radius);
  color: var(--copper);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-products .pp-file:hover .pp-file__code {
  background: var(--copper);
  color: var(--paper);
}
.page-products .pp-file__desc {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text);
}
.page-products .pp-file__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* ---------- 交付与验收 ---------- */
.page-products .pp-deliver {
  padding: clamp(40px, 6vw, 84px) 0;
  background: var(--paper);
}
.page-products .pp-deliver__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 42px);
}
.page-products .pp-check {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pp-check li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  line-height: 1.75;
}
.page-products .pp-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 15px;
  height: 2px;
  background: var(--copper);
  transform: rotate(-42deg);
  transform-origin: left center;
}
.page-products .pp-note {
  margin: 0;
  padding: 16px 18px;
  background: var(--paper-2);
  border-left: 3px solid var(--bamboo);
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--text);
}

/* ---------- 周期节奏（深色） ---------- */
.page-products .pp-cycle {
  background: var(--ink-2);
  color: var(--on-ink);
  padding: clamp(44px, 6vw, 88px) 0;
}
.page-products .pp-cycle .section-head__num {
  color: var(--bamboo-bright);
  border-bottom-color: var(--bamboo-bright);
}
.page-products .pp-cycle .section-head__title {
  color: var(--on-ink);
}
.page-products .pp-cycle .section-head__desc {
  color: var(--on-ink-soft);
}
.page-products .pp-cycle__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}
.page-products .pp-cycle__card {
  background: var(--ink-2);
  padding: 24px 22px 26px;
}
.page-products .pp-cycle__label {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--bamboo-bright);
  border-bottom: 2px solid var(--copper);
  padding-bottom: 6px;
  margin-bottom: 14px;
}
.page-products .pp-cycle__use {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--on-ink);
}
.page-products .pp-cycle__how {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--on-ink-soft);
}
.page-products .pp-cycle__get {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--on-ink-faint);
  padding-top: 12px;
  border-top: 1px dashed var(--ink-line);
}

/* ---------- 格式与版本 ---------- */
.page-products .pp-format {
  background: var(--paper);
  padding: clamp(40px, 6vw, 84px) 0;
}
.page-products .pp-format__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 44px);
  margin-bottom: clamp(28px, 4vw, 48px);
}
.page-products .pp-format__rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-products .pp-format__rules li {
  background: var(--paper);
  padding: 18px 18px 20px;
}
.page-products .pp-format__k {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--copper);
  margin-bottom: 8px;
}
.page-products .pp-format__rules p {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--text);
}
.page-products .pp-format__band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}
.page-products .pp-format__ver,
.page-products .pp-format__find {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}
.page-products .pp-format__find {
  margin-bottom: 0;
  color: var(--muted);
}
.page-products .pp-format__ver .t-mono {
  color: var(--bamboo);
  font-weight: 600;
  padding: 1px 5px;
  background: var(--paper-2);
  border-left: 2px solid var(--copper);
}

/* ---------- 图片 ---------- */
.page-products .pp-figure {
  margin: 0;
}
.page-products .pp-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
}
.page-products .pp-figure figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .03em;
  color: var(--muted);
}
.page-products .pp-figure--band {
  margin-bottom: clamp(20px, 3vw, 34px);
}
.page-products .pp-figure--band img {
  aspect-ratio: 21 / 9;
}
.page-products .pp-figure--tall img {
  aspect-ratio: 4 / 3;
}
.page-products .pp-figure--small img {
  aspect-ratio: 3 / 2;
}

/* ---------- 收尾流程条 ---------- */
.page-products .pp-flow {
  background: var(--ink);
  color: var(--on-ink);
  padding: clamp(44px, 6vw, 88px) 0 clamp(48px, 7vw, 96px);
  position: relative;
}
.page-products .pp-flow::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  background: repeating-linear-gradient(90deg,
    var(--bamboo) 0 22px,
    transparent 22px 34px);
  opacity: .6;
}
.page-products .pp-flow__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.8vw, 32px);
  line-height: 1.26;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(22px, 3vw, 40px);
  color: var(--on-ink);
}
.page-products .pp-flow__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}
.page-products .pp-flow__idx {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--bamboo-bright);
  margin-bottom: 8px;
}
.page-products .pp-flow__label {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--on-ink);
  margin-bottom: 6px;
}
.page-products .pp-flow__note {
  display: block;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--on-ink-soft);
}
.page-products .pp-flow__help {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding-top: 20px;
  border-top: 1px dashed var(--ink-line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--on-ink-soft);
}
.page-products .pp-flow__help .link-line {
  color: var(--bamboo-bright);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .pp-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pp-read {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-files__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-products .pp-svc__specs {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 12px 22px;
  }
  .page-products .pp-spec__key {
    margin-top: 2px;
    padding-top: 2px;
  }
  .page-products .pp-format__rules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .pp-flow__track {
    position: relative;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0 26px;
  }
  .page-products .pp-flow__track::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 15px;
    height: 2px;
    background: repeating-linear-gradient(90deg,
      rgba(52, 168, 124, .55) 0 12px,
      transparent 12px 19px);
  }
  .page-products .pp-flow__step {
    position: relative;
    padding-top: 44px;
  }
  .page-products .pp-flow__idx {
    position: absolute;
    top: 0;
    left: 0;
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    margin: 0;
    background: var(--ink);
    border: 1px solid var(--bamboo-bright);
    border-radius: 50%;
    font-size: 11.5px;
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: 7fr 5fr;
  }
  .page-products .pp-deliver__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
  .page-products .pp-format__grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
  .page-products .pp-format__band {
    grid-template-columns: 5fr 7fr;
  }
}

@media (min-width: 1024px) {
  .page-products .pp-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(32px, 4.5vw, 66px);
    align-items: start;
  }
  .page-products .pp-rail {
    position: sticky;
    top: calc(var(--header-h-compact) + 22px);
    align-self: start;
  }
}

@media (min-width: 1080px) {
  .page-products .pp-files__grid {
    grid-template-columns: 1.35fr 1fr 1.15fr 0.95fr;
  }
}

@media (min-width: 1180px) {
  .page-products .pp-cycle__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .pp-file__code,
  .page-products .pp-tree__link::before,
  .page-products .pp-tree__name,
  .page-products .pp-btn--outline {
    transition: none;
  }
}