.page-products {
  --prod-line: rgba(0, 229, 255, 0.16);
  --prod-border: rgba(192, 196, 204, 0.22);
  --prod-radius: 18px;
  overflow-x: clip;
}

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

/* ---------- 面包屑 ---------- */
.page-products .prod-breadcrumb {
  padding-top: 1.25rem;
}

/* ---------- Hero ---------- */
.page-products .prod-hero {
  position: relative;
  padding: 1.5rem 0 3rem;
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  top: 18%;
  right: -14%;
  width: 52vw;
  height: 52vw;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.16), transparent 66%);
  filter: blur(28px);
  pointer-events: none;
  z-index: 0;
}

.page-products .prod-hero__inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.page-products .prod-hero__copy {
  position: relative;
  z-index: 1;
}

.page-products .prod-hero__index {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.75rem;
}

.page-products .prod-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  line-height: 1.15;
  margin: 0.75rem 0 1rem;
  color: var(--fg);
}

.page-products .prod-hero h1 span {
  background: var(--track);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-products .prod-hero__lead {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
  max-width: 34rem;
  margin: 0;
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.5rem;
}

.page-products .prod-hero__visual {
  position: relative;
}

.page-products .prod-hero__visual::before {
  content: "";
  position: absolute;
  width: 120%;
  height: 60%;
  top: 12%;
  left: -8%;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(179, 136, 255, 0.16));
  filter: blur(28px);
  z-index: 0;
}

.page-products .prod-hero__visual img {
  position: relative;
  z-index: 1;
  border-radius: var(--prod-radius);
  border: 1px solid var(--prod-line);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.42);
  transform: rotate(-1.5deg);
}

/* ---------- 区块通用链接 ---------- */
.page-products .prod-more {
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-products .prod-more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(0, 229, 255, 0.4);
  transition: border-color 0.3s var(--ease);
}

.page-products .prod-more a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 01 入口切换指南 ---------- */
.page-products .prod-switch {
  background: var(--bg-panel);
  padding: 4rem 0;
}

.page-products .prod-switch__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.25rem;
}

.page-products .switch-card {
  border-radius: var(--prod-radius);
  background: var(--bg-deep);
  border: 1px solid var(--prod-border);
  perspective: 1400px;
}

.page-products .switch-card__inner {
  position: relative;
  min-height: 12.5rem;
  transform-style: preserve-3d;
  transition: transform 0.6s var(--ease);
}

.page-products .switch-card__front,
.page-products .switch-card__back {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem;
}

.page-products .switch-card__front {
  background: linear-gradient(145deg, var(--bg-deep), #0e1424);
  border-bottom: 1px solid var(--prod-border);
  border-radius: var(--prod-radius) var(--prod-radius) 0 0;
}

.page-products .switch-card__back {
  border-radius: 0 0 var(--prod-radius) var(--prod-radius);
}

.page-products .switch-card__version {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  background: var(--track);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-products .switch-card__label {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--fg);
  font-size: 1.05rem;
}

.page-products .switch-card__back p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.7;
  margin: 0;
}

.page-products .switch-card__status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
  border: 1px solid rgba(0, 229, 255, 0.4);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  align-self: flex-start;
}

.page-products .switch-card__status--archived {
  color: var(--muted);
  border-color: rgba(138, 148, 166, 0.5);
}

.page-products .switch-card__status--legacy {
  color: var(--silver);
  border-color: rgba(192, 196, 204, 0.5);
}

.page-products .switch-card__status--active {
  color: var(--orange);
  border-color: rgba(255, 109, 0, 0.6);
}

.page-products .prod-switch__steps {
  margin: 2.5rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 0.875rem;
}

.page-products .prod-switch__steps li {
  counter-increment: step;
  position: relative;
  padding-left: 3rem;
  color: var(--fg);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-products .prod-switch__steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--cyan);
  border: 1px solid rgba(0, 229, 255, 0.5);
  border-radius: 50%;
  background: var(--bg-deep);
}

/* ---------- 02 资料库 ---------- */
.page-products .prod-archive {
  padding: 4rem 0;
}

.page-products .prod-archive__layout {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
}

.page-products .prod-archive__visual img {
  border-radius: var(--prod-radius);
  border: 1px solid var(--prod-line);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

.page-products .prod-archive__quarters {
  display: grid;
  gap: 0.75rem;
}

.page-products .archive-quarter {
  background: var(--bg-panel);
  border-left: 3px solid var(--cyan);
  border-radius: 0 12px 12px 0;
  overflow: hidden;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-products .archive-quarter[open] {
  border-left-color: var(--purple);
  background: var(--bg-panel-2);
}

.page-products .archive-quarter summary {
  cursor: pointer;
  padding: 0.95rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--fg);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  user-select: none;
}

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

.page-products .archive-quarter summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--cyan);
  transition: transform 0.3s var(--ease);
  line-height: 1;
}

.page-products .archive-quarter[open] summary::after {
  transform: rotate(45deg);
}

.page-products .archive-quarter p {
  margin: 0;
  padding: 0 1.1rem 1rem;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.65;
}

/* ---------- 03 工具列表 ---------- */
.page-products .prod-tools {
  background: var(--bg-panel);
  padding: 4rem 0;
}

.page-products .prod-tools__visual img {
  border-radius: var(--prod-radius);
  border: 1px solid var(--prod-line);
  margin-top: 2.25rem;
}

.page-products .tool-table {
  border: 1px solid var(--prod-border);
  border-radius: var(--prod-radius);
  overflow: hidden;
  background: var(--bg-deep);
  margin-top: 1.75rem;
}

.page-products .tool-table__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--prod-border);
}

.page-products .tool-table__row:last-child {
  border-bottom: 0;
}

.page-products .tool-table__head {
  display: none;
}

.page-products .tool-table__row > span:nth-child(2)::before {
  content: "用途：";
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.page-products .tool-table__row > span:nth-child(3)::before {
  content: "启用：";
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.page-products .tool-table__row > span {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-products .tool-table__cmd {
  font-family: var(--font-mono);
  color: var(--cyan);
  font-weight: 700;
  word-break: break-all;
}

.page-products .tool-table__cmd i {
  font-style: normal;
  color: var(--orange);
  margin-right: 0.5rem;
}

.page-products .prod-stats {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.875rem;
}

.page-products .prod-stats li {
  background: var(--bg-deep);
  border: 1px solid var(--prod-border);
  border-radius: 14px;
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-products .prod-stats strong {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--fg);
}

.page-products .prod-stats strong::after {
  content: "";
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-left: 0.4rem;
  background: var(--track);
  border-radius: 50%;
  vertical-align: middle;
}

.page-products .prod-stats span {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

/* ---------- 04 查询栏 ---------- */
.page-products .prod-query {
  padding: 4rem 0;
}

.page-products .prod-query__layout {
  display: grid;
  gap: 1.5rem;
  margin-top: 2.25rem;
}

.page-products .query-demo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-deep);
  border: 1px solid var(--cyan);
  border-radius: 12px;
  padding: 1.25rem 1.4rem;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.15);
  font-family: var(--font-mono);
}

.page-products .query-demo__prompt {
  color: var(--orange);
}

.page-products .query-demo__input {
  color: var(--fg);
  font-size: 0.95rem;
}

.page-products .query-demo__cursor {
  width: 0.6em;
  height: 1.2em;
  background: var(--cyan);
  display: inline-block;
  animation: prod-query-blink 1.1s step-end infinite;
}

@keyframes prod-query-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.page-products .query-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.9rem;
  align-content: center;
}

.page-products .query-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.page-products .query-list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--purple);
}

.page-products .prod-query__image {
  margin-top: 2rem;
}

.page-products .prod-query__image img {
  border-radius: var(--prod-radius);
  border: 1px solid var(--prod-line);
}

/* ---------- 05 更新计划 ---------- */
.page-products .prod-roadmap {
  background: var(--bg-panel);
  padding: 4rem 0;
}

.page-products .roadmap-track {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.page-products .roadmap-stage {
  background: var(--bg-deep);
  border-radius: var(--prod-radius);
  border: 1px solid var(--prod-border);
  padding: 1.6rem;
  position: relative;
  overflow: hidden;
}

.page-products .roadmap-stage::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 6rem;
  height: 6rem;
  background: linear-gradient(225deg, rgba(0, 229, 255, 0.12), transparent 70%);
  border-radius: 0 0 0 100%;
}

.page-products .roadmap-stage__badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid rgba(0, 229, 255, 0.5);
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  display: inline-block;
}

.page-products .roadmap-stage h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 800;
  margin: 1rem 0 0.5rem;
  color: var(--fg);
}

.page-products .roadmap-stage p {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.7;
  margin: 0;
  position: relative;
  z-index: 1;
}

.page-products .prod-roadmap__image {
  margin-top: 2rem;
}

.page-products .prod-roadmap__image img {
  border-radius: var(--prod-radius);
  border: 1px solid var(--prod-line);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 768px) {
  .page-products .prod-hero {
    padding: 3.5rem 0 5rem;
  }

  .page-products .prod-hero__inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 3rem;
  }

  .page-products .prod-hero__visual img {
    transform: rotate(-1.5deg) scale(1.02);
  }

  .page-products .prod-switch,
  .page-products .prod-tools,
  .page-products .prod-roadmap {
    padding: 5.5rem 0;
  }

  .page-products .prod-archive,
  .page-products .prod-query {
    padding: 5.5rem 0;
  }

  .page-products .prod-switch__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-products .switch-card__inner {
    min-height: 15rem;
  }

  .page-products .switch-card__front,
  .page-products .switch-card__back {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: var(--prod-radius);
    border: 0;
  }

  .page-products .switch-card__front {
    border-bottom: 0;
  }

  .page-products .switch-card__back {
    transform: rotateY(180deg);
  }

  .page-products .switch-card:hover .switch-card__inner,
  .page-products .switch-card:focus .switch-card__inner,
  .page-products .switch-card:focus-within .switch-card__inner {
    transform: rotateY(180deg);
  }

  .page-products .prod-switch__steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 3rem;
  }

  .page-products .prod-archive__layout {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
    gap: 2.75rem;
  }

  .page-products .tool-table__head {
    display: grid;
    grid-template-columns: 1.4fr 2fr 1.2fr;
    background: var(--bg-panel-2);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .page-products .tool-table__row {
    grid-template-columns: 1.4fr 2fr 1.2fr;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 1.4rem;
  }

  .page-products .tool-table__row > span:nth-child(2)::before,
  .page-products .tool-table__row > span:nth-child(3)::before {
    display: none;
  }

  .page-products .prod-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .prod-query__layout {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: center;
  }

  .page-products .query-demo {
    margin-top: 0;
  }

  .page-products .roadmap-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    position: relative;
    padding-top: 2rem;
  }

  .page-products .roadmap-track::before {
    content: "";
    position: absolute;
    top: 0.6rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--track);
    opacity: 0.35;
  }

  .page-products .roadmap-stage::before {
    content: "";
    position: absolute;
    top: -1.7rem;
    left: 1.8rem;
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 14px rgba(0, 229, 255, 0.7);
  }
}

@media (min-width: 1080px) {
  .page-products .prod-hero__copy {
    max-width: 40rem;
  }
}

/* ---------- 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products * {
    animation: none !important;
    transition: none !important;
  }

  .page-products .switch-card__front {
    display: none;
  }

  .page-products .switch-card__back {
    position: static;
    transform: none;
    opacity: 1;
    backface-visibility: visible;
    border-radius: var(--prod-radius);
  }

  .page-products .prod-hero__visual img {
    transform: none;
  }
}