.page-products {
  --pp-hair: 1px solid var(--line);
  --pp-focus: 2px solid var(--cyan);
}

.page-products .crumbs {
  margin-bottom: 26px;
  font-size: 0.8125rem;
  color: var(--muted);
}

.page-products .crumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--mono);
}

.page-products .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-products .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-products .crumbs a:hover,
.page-products .crumbs a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-products .crumbs [aria-current="page"] {
  color: var(--text);
}

/* ---------- 首屏 ---------- */

.page-products .hero {
  padding: 34px 0 44px;
  border-bottom: var(--pp-hair);
  background:
    linear-gradient(180deg, rgba(255, 107, 44, 0.07) 0%, rgba(10, 22, 34, 0) 62%);
}

.page-products .hero h1 {
  margin: 0.28em 0 0;
  font-family: var(--display);
  font-size: clamp(1.9rem, 5.4vw, 3.9rem);
  line-height: 1.03;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--text);
  max-width: 18ch;
}

.page-products .hero__lede {
  margin: 22px 0 0;
  max-width: 64ch;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--text);
}

.page-products .hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 30px;
  background: var(--line);
  border: var(--pp-hair);
}

.page-products .hero__stat {
  background: var(--ink-800);
  padding: 14px 16px;
}

.page-products .hero__stat b {
  display: block;
  font-family: var(--mono);
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--orange);
  letter-spacing: -0.02em;
}

.page-products .hero__stat span {
  display: block;
  margin-top: 4px;
  font-size: 0.8125rem;
  color: var(--muted);
}

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

/* ---------- 章节通用头 ---------- */

.page-products .sec-head {
  padding: 44px 0 24px;
  max-width: 780px;
}

.page-products .sec-head h2 {
  margin: 0.3em 0 0;
  font-family: var(--display);
  font-size: clamp(1.6rem, 3.8vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--text);
}

.page-products .sec-head__sub {
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .prose {
  margin: 0 0 16px;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
  max-width: 68ch;
}

.page-products .prose a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.4);
  transition: border-color var(--t-fast);
}

.page-products .prose a:hover,
.page-products .prose a:focus-visible {
  border-bottom-color: var(--orange);
}

/* ---------- 界面导览 ---------- */

.page-products .tour {
  border-bottom: var(--pp-hair);
}

.page-products .tour__stage {
  padding-bottom: 52px;
}

.page-products .tour__frame {
  position: relative;
  border: var(--pp-hair);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-products .tour__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(215, 227, 238, 0.05) 0 1px,
    rgba(215, 227, 238, 0) 1px 4px
  );
}

.page-products .hot {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: var(--orange);
  color: var(--on-accent);
  font-family: var(--mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-decoration: none;
  transition: transform var(--t-fast), background var(--t-fast);
}

.page-products .hot:hover {
  transform: scale(1.12);
  background: var(--orange-soft);
}

.page-products .hot:focus-visible {
  outline: var(--pp-focus);
  outline-offset: 2px;
}

.page-products .hot--1 { top: 17%; left: 5%; }
.page-products .hot--2 { top: 17%; left: 33%; }
.page-products .hot--3 { top: 57%; left: 33%; }
.page-products .hot--4 { top: 57%; left: 76%; }

.page-products .tour__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--pp-hair);
  border-top: 0;
}

.page-products .legend__item {
  background: var(--ink-700);
  padding: 16px 18px 18px;
  border-left: 2px solid transparent;
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .legend__item .mono {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--cyan);
}

.page-products .legend__item h3 {
  margin: 6px 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .legend__item p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .tour__stage:has(.hot--1:hover) .legend__item--1,
.page-products .tour__stage:has(.hot--1:focus-visible) .legend__item--1,
.page-products .tour__stage:has(.hot--2:hover) .legend__item--2,
.page-products .tour__stage:has(.hot--2:focus-visible) .legend__item--2,
.page-products .tour__stage:has(.hot--3:hover) .legend__item--3,
.page-products .tour__stage:has(.hot--3:focus-visible) .legend__item--3,
.page-products .tour__stage:has(.hot--4:hover) .legend__item--4,
.page-products .tour__stage:has(.hot--4:focus-visible) .legend__item--4 {
  border-left-color: var(--orange);
  background: var(--ink-800);
}

/* ---------- 筛选面板 ---------- */

.page-products .filter {
  border-bottom: var(--pp-hair);
  background: var(--ink-800);
}

.page-products .filter__grid {
  display: grid;
  gap: 24px;
  padding-bottom: 52px;
}

.page-products .filter__visual {
  border: var(--pp-hair);
  background: var(--ink-900);
}

.page-products .filter__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 780;
  object-fit: cover;
}

.page-products .filter-demo {
  margin-top: 26px;
  border: var(--pp-hair);
  background: var(--ink-900);
}

.page-products .fd-anchor {
  display: block;
  height: 0;
  scroll-margin-top: 140px;
}

.page-products .fd-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--line);
  border-bottom: var(--pp-hair);
}

.page-products .fd-tab {
  flex: 1 1 auto;
  text-align: center;
  padding: 10px 10px;
  background: var(--ink-700);
  color: var(--muted);
  font-size: 0.8125rem;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.page-products .fd-tab:hover {
  color: var(--text);
  background: var(--ink-800);
}

.page-products .fd-tab:focus-visible {
  outline: var(--pp-focus);
  outline-offset: -2px;
}

.page-products .fd-tabs .fd-tab:first-child {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products #fd-act:target ~ .fd-tabs .fd-tab:first-child,
.page-products #fd-str:target ~ .fd-tabs .fd-tab:first-child,
.page-products #fd-cas:target ~ .fd-tabs .fd-tab:first-child {
  color: var(--muted);
  border-bottom-color: transparent;
}

.page-products #fd-act:target ~ .fd-tabs a[href="#fd-act"],
.page-products #fd-str:target ~ .fd-tabs a[href="#fd-str"],
.page-products #fd-cas:target ~ .fd-tabs a[href="#fd-cas"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

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

.page-products .fd-list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 11px 14px;
  border-bottom: var(--pp-hair);
  font-size: 0.9375rem;
  color: var(--text);
}

.page-products .fd-list li:last-child {
  border-bottom: 0;
}

.page-products .fd-list .mono {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.page-products #fd-act:target ~ .fd-list li:not([data-cat="act"]),
.page-products #fd-str:target ~ .fd-list li:not([data-cat="str"]),
.page-products #fd-cas:target ~ .fd-list li:not([data-cat="cas"]) {
  display: none;
}

.page-products .filter__hint {
  margin: 14px 0 0;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 记录查询 ---------- */

.page-products .records {
  border-bottom: var(--pp-hair);
}

.page-products .records__grid {
  display: grid;
  gap: 28px;
  padding-bottom: 52px;
}

.page-products .records__text h2 {
  margin: 0.3em 0 18px;
  font-family: var(--display);
  font-size: clamp(1.6rem, 3.8vw, 2.6rem);
  line-height: 1.1;
  font-weight: 700;
  color: var(--text);
}

.page-products .steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--pp-hair);
}

.page-products .steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  background: var(--ink-800);
  padding: 14px 16px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text);
}

.page-products .steps .mono {
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--orange);
  white-space: nowrap;
}

.page-products .records__figure {
  margin: 0;
  border: var(--pp-hair);
  background: var(--ink-800);
}

.page-products .records__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 900 / 480;
  object-fit: cover;
}

.page-products .records__figure .figure__cap {
  padding: 12px 14px;
  border-top: var(--pp-hair);
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 兼容清单 ---------- */

.page-products .compat {
  border-bottom: var(--pp-hair);
  background: var(--ink-800);
}

.page-products .compat__grid {
  display: grid;
  gap: 28px;
  padding-bottom: 52px;
}

.page-products .compat__subtitle {
  margin: 0;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--muted);
}

.page-products .checklist {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border: var(--pp-hair);
  background: var(--ink-900);
}

.page-products .checklist li {
  display: grid;
  grid-template-columns: 16px 30px 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border-bottom: var(--pp-hair);
  transition: background var(--t-fast);
}

.page-products .checklist li:last-child {
  border-bottom: 0;
}

.page-products .checklist li:hover {
  background: var(--ink-700);
}

.page-products .checklist__box {
  width: 15px;
  height: 15px;
  margin-top: 4px;
  border: 1px solid var(--line);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .checklist li:hover .checklist__box {
  border-color: var(--cyan);
  background: rgba(53, 224, 208, 0.15);
}

.page-products .checklist__num {
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.9;
  color: var(--cyan);
}

.page-products .checklist strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.page-products .checklist p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .compat__more {
  margin: 16px 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .compat__more a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.4);
}

.page-products .compat__more a:hover,
.page-products .compat__more a:focus-visible {
  border-bottom-color: var(--orange);
}

.page-products .compat__figure {
  margin: 0;
  border: var(--pp-hair);
  background: var(--ink-900);
  align-self: start;
}

.page-products .compat__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 860 / 640;
  object-fit: cover;
}

.page-products .compat__figure .figure__cap {
  padding: 12px 14px;
  border-top: var(--pp-hair);
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 两端对比 ---------- */

.page-products .compare {
  border-bottom: var(--pp-hair);
}

.page-products .compare__figure {
  margin: 0 0 24px;
  border: var(--pp-hair);
  background: var(--ink-800);
}

.page-products .compare__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 560;
  object-fit: cover;
}

.page-products .compare__figure .figure__cap {
  padding: 12px 14px;
  border-top: var(--pp-hair);
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .compare__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--pp-hair);
  margin-bottom: 52px;
}

.page-products .compare__col {
  background: var(--ink-800);
  padding: 22px 18px 24px;
}

.page-products .compare__col--pc {
  border-left: 2px solid var(--orange);
}

.page-products .compare__col--mb {
  border-left: 2px solid var(--cyan);
}

.page-products .compare__col h3 {
  margin: 14px 0 12px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

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

.page-products .compare__col li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 10px;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .compare__col li:last-child {
  margin-bottom: 0;
}

.page-products .compare__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 5px;
  height: 1px;
  background: var(--line);
}

.page-products .compare__col--pc li::before {
  background: var(--orange);
}

.page-products .compare__col--mb li::before {
  background: var(--cyan);
}

/* ---------- 三类路径 ---------- */

.page-products .routes {
  border-bottom: var(--pp-hair);
  background: var(--ink-800);
}

.page-products .routes__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--pp-hair);
  margin-bottom: 52px;
}

.page-products .route-card {
  background: var(--ink-900);
  padding: 22px 18px 24px;
  border-top: 2px solid var(--line);
  transition: border-color var(--t-fast), background var(--t-fast);
}

.page-products .route-card:hover {
  background: var(--ink-700);
}

.page-products .route-card--new { border-top-color: var(--orange); }
.page-products .route-card--old { border-top-color: var(--amber); }
.page-products .route-card--switch { border-top-color: var(--cyan); }

.page-products .route-card__tag {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .route-card h3 {
  margin: 8px 0 14px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .route-card ol {
  margin: 0;
  padding-left: 18px;
}

.page-products .route-card li {
  margin-bottom: 10px;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--text);
}

.page-products .route-card li:last-child {
  margin-bottom: 0;
}

.page-products .route-card li a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 44, 0.4);
}

.page-products .route-card li a:hover,
.page-products .route-card li a:focus-visible {
  border-bottom-color: var(--orange);
}

.page-products .route-card__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: var(--pp-hair);
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 支持 ---------- */

.page-products .support {
  padding: 48px 0 60px;
}

.page-products .support__box {
  border: var(--pp-hair);
  background: var(--ink-700);
  padding: 24px 20px;
}

.page-products .support__text h2 {
  margin: 0.3em 0 16px;
  font-family: var(--display);
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.14;
  font-weight: 700;
  color: var(--text);
}

.page-products .support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products .support .note {
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-products .hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .hero h1 {
    max-width: 20ch;
  }
}

@media (min-width: 900px) {
  .page-products .hero {
    padding: 44px 0 56px;
  }

  .page-products .sec-head {
    padding: 56px 0 28px;
  }

  .page-products .filter__grid {
    grid-template-columns: 5fr 7fr;
    gap: 36px;
    align-items: start;
    padding-bottom: 60px;
  }

  .page-products .filter__visual {
    position: sticky;
    top: 24px;
  }

  .page-products .records__grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    padding-bottom: 60px;
  }

  .page-products .compat__grid {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
    align-items: start;
    padding-bottom: 60px;
  }

  .page-products .compare__grid {
    grid-template-columns: 1fr 1fr;
    margin-bottom: 60px;
  }

  .page-products .routes__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 60px;
  }

  .page-products .support {
    padding: 60px 0 76px;
  }

  .page-products .support__box {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 36px;
    align-items: start;
    padding: 34px 32px;
  }

  .page-products .support .note {
    margin-top: 0;
  }
}

@media (min-width: 1100px) {
  .page-products .tour__legend {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .hot {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
  }
}