.page-products {
  background: var(--mist);
  color: var(--ink);
  overflow-x: clip;
}

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

.page-products .tools-block {
  padding: clamp(44px, 7vw, 88px) 0;
}

/* ---------- 通用小节标题 ---------- */
.page-products .sec-head {
  max-width: 660px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-products .sec-head h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  font-weight: 700;
  color: var(--ink);
}

.page-products .sec-head__lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--graphite);
  max-width: 620px;
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  padding: 22px 0 clamp(34px, 5vw, 62px);
  background:
    radial-gradient(115% 95% at 100% 0%, var(--blue-pale) 0%, rgba(220, 232, 255, 0) 58%),
    var(--mist);
}

.page-products .tools-hero__grid {
  display: grid;
  gap: 30px;
  margin-top: 18px;
}

.page-products h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--ink);
}

.page-products .tools-hero__lede {
  margin: 20px 0 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--graphite);
  max-width: 600px;
}

.page-products .tools-hero__tags {
  margin-top: 22px;
}

.page-products .tools-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .tools-hero__figure {
  margin: 0;
}

.page-products .tools-hero__figure img {
  width: 100%;
  border-radius: var(--r-lg);
}

/* ---------- 四类栏目刻度带 ---------- */
.page-products .lane {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-products .lane__item {
  position: relative;
  padding: 30px 18px 26px;
  border-top: 1px solid var(--line);
  transition: background .22s var(--ease);
}

.page-products .lane__item::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px var(--mist);
}

.page-products .lane__num {
  margin: 0;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--blue);
}

.page-products .lane__title {
  margin: 10px 0 0;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-products .lane__desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-products .lane__meta {
  margin: 16px 0 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--graphite);
  text-transform: uppercase;
}

/* ---------- 二级分类索引 ---------- */
.page-products .tools-index__grid {
  display: grid;
  gap: 14px;
}

.page-products .group {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  transition: box-shadow .22s var(--ease);
}

.page-products .group[open] {
  box-shadow: var(--shadow-card);
}

.page-products .group__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .group__sum::after {
  content: "";
  margin-left: auto;
  flex: none;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--graphite);
  border-bottom: 2px solid var(--graphite);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .18s var(--ease);
}

.page-products .group[open] .group__sum::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-products .group__num {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--blue);
}

.page-products .group__name {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .group__count {
  margin-left: auto;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-products .group__list {
  list-style: none;
  margin: 0;
  padding: 0 18px 10px;
}

.page-products .group__list li {
  display: grid;
  gap: 2px;
  padding: 11px 0;
  border-top: 1px dashed var(--line);
}

.page-products .group__k {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .group__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

.page-products .tools-index__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

.page-products .tools-index__figure img {
  width: 100%;
  border-radius: var(--r-lg);
}

/* ---------- 三种筛法 ---------- */
.page-products .tools-filter__pills {
  margin-bottom: 6px;
}

.page-products .pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-size: 14px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-products .pill:hover,
.page-products .pill:focus-visible {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-pale);
}

.page-products .tools-filter__cards {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-products .fcard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 24px 22px;
  transition: box-shadow .22s var(--ease), transform .22s var(--ease);
}

.page-products .fcard:target {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-pale);
}

.page-products .fcard__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-products .fcard__title {
  margin: 10px 0 18px;
  font-size: 21px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .fcard__dl {
  margin: 0;
}

.page-products .fcard__dl dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--graphite);
  text-transform: uppercase;
}

.page-products .fcard__dl dd {
  margin: 6px 0 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-products .fcard__dl dd:last-child {
  margin-bottom: 0;
}

.page-products .tools-filter__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

.page-products .tools-filter__figure img {
  width: 100%;
  border-radius: var(--r-lg);
}

/* ---------- 路径规则 ---------- */
.page-products .tools-path__grid {
  display: grid;
  gap: 26px;
}

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

.page-products .pathline__step {
  position: relative;
  padding: 4px 0 26px 30px;
  border-left: 2px solid var(--blue);
}

.page-products .pathline__step::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--mist);
  border: 2px solid var(--blue);
}

.page-products .pathline__step:last-child {
  border-left-color: var(--line);
  padding-bottom: 0;
}

.page-products .pathline__step:last-child::before {
  border-color: var(--line);
  border-style: dashed;
}

.page-products .pathline__num {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--blue);
  text-transform: uppercase;
}

.page-products .pathline__step--muted .pathline__num {
  color: var(--graphite);
}

.page-products .pathline__title {
  margin: 8px 0 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .pathline__desc {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 44ch;
}

.page-products .tools-path__figure {
  margin: 0;
}

.page-products .tools-path__figure img {
  width: 100%;
  border-radius: var(--r-lg);
}

/* ---------- 双视图 ---------- */
.page-products .tools-views__pair {
  display: grid;
  gap: 16px;
}

.page-products .viewcard {
  position: relative;
  border-radius: var(--r-lg);
  padding: 26px 22px;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
}

.page-products .viewcard::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
}

.page-products .viewcard--wide::before {
  background: linear-gradient(90deg, var(--blue) 0%, var(--blue-deep) 60%, var(--orange) 100%);
}

.page-products .viewcard--narrow::before {
  background: linear-gradient(90deg, var(--orange) 0%, var(--blue) 70%, var(--blue-pale) 100%);
}

.page-products .viewcard__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--blue-pale);
  text-transform: uppercase;
}

.page-products .viewcard__title {
  margin: 12px 0 16px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

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

.page-products .viewcard__list li {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .8);
}

.page-products .viewcard__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
}

.page-products .viewcard--narrow .viewcard__list li::before {
  background: var(--blue-pale);
}

.page-products .tools-views__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
}

.page-products .tools-views__figure img {
  width: 100%;
  border-radius: var(--r-lg);
}

/* ---------- 版本状态 ---------- */
.page-products .tools-version__grid {
  display: grid;
  gap: 22px;
}

.page-products .vlegend__row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite);
}

.page-products .vlegend__row:first-child {
  padding-top: 0;
}

.page-products .vlegend__row strong {
  color: var(--ink);
  font-weight: 700;
}

.page-products .vlegend__dot {
  flex: none;
  width: 12px;
  height: 12px;
  margin-top: 8px;
  border-radius: 50%;
}

.page-products .vlegend__dot--blue {
  background: var(--blue);
}

.page-products .vlegend__dot--orange {
  background: var(--orange);
  animation: tools-pulse 3s var(--ease) infinite;
}

.page-products .vlegend__dot--green {
  background: var(--green);
}

.page-products .vlegend__dot--line {
  background: var(--line);
  border: 1px solid var(--graphite);
}

@keyframes tools-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(.78); }
}

.page-products .stampcard {
  background: var(--paper);
  border: 1px solid var(--brown);
  border-radius: var(--r-lg);
  padding: 24px 22px;
  color: var(--brown);
}

.page-products .stampcard__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brown);
  opacity: .72;
}

.page-products .stampcard__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
}

.page-products .stampcard__meta {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(42, 33, 24, .3);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

/* ---------- 收束 ---------- */
.page-products .tools-tail {
  background: var(--paper);
  border-top: 1px solid var(--brown);
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-products .tools-tail h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--brown);
}

.page-products .tools-tail__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .tools-tail__list li {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-top: 1px solid rgba(42, 33, 24, .25);
}

.page-products .tools-tail__link {
  font-size: 18px;
  font-weight: 700;
  color: var(--brown);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  justify-self: start;
  transition: color .18s var(--ease);
}

.page-products .tools-tail__link:hover,
.page-products .tools-tail__link:focus-visible {
  color: var(--blue-deep);
}

.page-products .tools-tail__desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--brown);
  opacity: .78;
}

.page-products .tools-tail__note {
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--brown);
  opacity: .78;
}

.page-products .tools-tail__note a {
  color: var(--blue-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .group__list li {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }
}

@media (min-width: 700px) {
  .page-products .lane {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .tools-tail__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 24px;
  }
}

@media (min-width: 860px) {
  .page-products .tools-index__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }

  .page-products .tools-filter__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-products .tools-version__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 34px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-products .tools-path__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: 42px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-products .tools-hero__grid {
    grid-template-columns: minmax(0, 46%) minmax(0, 54%);
    gap: 56px;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-products .lane {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .lane__item {
    padding: 32px 24px 30px;
  }

  .page-products .lane__item::before {
    left: 24px;
  }

  .page-products .lane__item + .lane__item {
    border-left: 1px solid var(--line);
  }
}

@media (hover: hover) {
  .page-products .lane__item:hover {
    background: var(--blue-pale);
  }

  .page-products .fcard:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}