.page-products {
  --pp-gap: clamp(24px, 4vw, 56px);
  --pp-panel-line: var(--line);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-products .products-hero {
  position: relative;
  padding: 26px 0 54px;
  border-bottom: 1px solid var(--line);
}

.page-products .products-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: min(220px, 42%);
  height: 2px;
  background: linear-gradient(90deg, var(--lime), rgba(198, 255, 61, 0));
}

.page-products .products-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-products h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 6vw, 54px);
  line-height: 1.07;
  font-weight: 700;
  letter-spacing: -0.022em;
  color: var(--paper);
  margin: 14px 0 18px;
  max-width: 17ch;
}

.page-products .products-lede {
  font-size: 17px;
  line-height: 1.78;
  color: var(--pale);
  max-width: 44ch;
  margin: 0;
}

.page-products .products-hero-side {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .hero-metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
  padding: 18px 20px;
  background: var(--ink);
}

.page-products .hero-metric-num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 500;
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.01em;
}

.page-products .hero-metric-num sup {
  font-size: 0.5em;
  vertical-align: super;
  margin-left: 2px;
}

.page-products .hero-metric-label {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--rock);
}

/* ---------- 章节头 ---------- */
.page-products .section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: -0.018em;
  color: var(--paper);
  margin: 10px 0 0;
  max-width: 20ch;
}

/* ---------- 标签页外壳 ---------- */
.page-products .proj-tabs {
  position: relative;
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-products .tabradio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  padding: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .proj-tabs-head {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-products .proj-tab {
  display: flex;
  align-items: baseline;
  gap: 9px;
  flex: none;
  padding: 11px 15px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  background: transparent;
  transition: background 160ms ease, border-color 160ms ease;
}

.page-products .proj-tab-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-products .proj-tab-name {
  font-size: 14px;
  line-height: 1.4;
  color: var(--pale);
}

.page-products .proj-tab:hover {
  background: var(--moss);
}

/* 选中态 */
.page-products #pt-1:checked ~ .proj-tabs-head [for="pt-1"],
.page-products #pt-2:checked ~ .proj-tabs-head [for="pt-2"],
.page-products #pt-3:checked ~ .proj-tabs-head [for="pt-3"],
.page-products #pt-4:checked ~ .proj-tabs-head [for="pt-4"] {
  background: rgba(198, 255, 61, 0.08);
  border-color: var(--line-strong);
}

.page-products #pt-1:checked ~ .proj-tabs-head [for="pt-1"] .proj-tab-num,
.page-products #pt-2:checked ~ .proj-tabs-head [for="pt-2"] .proj-tab-num,
.page-products #pt-3:checked ~ .proj-tabs-head [for="pt-3"] .proj-tab-num,
.page-products #pt-4:checked ~ .proj-tabs-head [for="pt-4"] .proj-tab-num {
  color: var(--lime);
}

.page-products #pt-1:checked ~ .proj-tabs-head [for="pt-1"] .proj-tab-name,
.page-products #pt-2:checked ~ .proj-tabs-head [for="pt-2"] .proj-tab-name,
.page-products #pt-3:checked ~ .proj-tabs-head [for="pt-3"] .proj-tab-name,
.page-products #pt-4:checked ~ .proj-tabs-head [for="pt-4"] .proj-tab-name {
  color: var(--paper);
  font-weight: 600;
}

/* 焦点环 */
.page-products #pt-1:focus-visible ~ .proj-tabs-head [for="pt-1"],
.page-products #pt-2:focus-visible ~ .proj-tabs-head [for="pt-2"],
.page-products #pt-3:focus-visible ~ .proj-tabs-head [for="pt-3"],
.page-products #pt-4:focus-visible ~ .proj-tabs-head [for="pt-4"] {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* 面板切换 */
.page-products .proj-panel {
  display: none;
}

.page-products #pt-1:checked ~ .proj-tabs-body #panel-1,
.page-products #pt-2:checked ~ .proj-tabs-body #panel-2,
.page-products #pt-3:checked ~ .proj-tabs-body #panel-3,
.page-products #pt-4:checked ~ .proj-tabs-body #panel-4 {
  display: block;
}

@media (prefers-reduced-motion: no-preference) {
  .page-products .proj-panel {
    animation: pp-slide-in 200ms ease both;
  }
}

@keyframes pp-slide-in {
  from {
    opacity: 0;
    transform: translateX(10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---------- 面板内部 ---------- */
.page-products .panel-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding-top: 4px;
}

.page-products .panel-title {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 10px 0 14px;
  max-width: 22ch;
}

.page-products .panel-lede {
  font-size: 16px;
  line-height: 1.78;
  color: var(--pale);
  max-width: 52ch;
  margin: 0;
}

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

.page-products .panel-media {
  margin: 0;
}

.page-products .media-frame.frame-auto {
  aspect-ratio: auto;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  line-height: 0;
}

.page-products .media-frame.frame-auto img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-products .panel-cap {
  font-size: 12px;
  line-height: 1.7;
  color: var(--rock);
  margin-top: 10px;
  max-width: 44ch;
}

/* ---------- 事实清单 ---------- */
.page-products .fact-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .fact-list li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 13px 16px;
  background: var(--bg);
  font-size: 15px;
  line-height: 1.65;
  color: var(--pale);
}

.page-products .fact-k {
  flex: none;
  min-width: 58px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--lime);
  letter-spacing: 0.02em;
}

/* ---------- 指标栈 ---------- */
.page-products .metric-note {
  margin: 18px 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-products .metric-stack {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-products .metric-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  background: var(--ink);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.5;
  color: var(--rock);
  transition: border-color 160ms ease, background 160ms ease;
}

.page-products .metric-row:hover {
  border-color: var(--line-strong);
}

.page-products .metric-idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-products .metric-name {
  flex: 1 1 auto;
  min-width: 0;
}

.page-products .metric-tip {
  flex: none;
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-size: 12px;
  color: var(--pulse);
  opacity: 0;
  transition: max-width 220ms ease, opacity 180ms ease;
}

.page-products .metric-row:hover .metric-tip,
.page-products .metric-row:focus-within .metric-tip {
  max-width: 200px;
  opacity: 1;
}

.page-products .metric-row.is-hot {
  border-color: var(--lime);
  background: linear-gradient(90deg, rgba(198, 255, 61, 0.16), rgba(198, 255, 61, 0.02) 78%);
  color: var(--paper);
}

.page-products .metric-row.is-hot .metric-idx {
  color: var(--lime);
}

.page-products .metric-row.metric-row--more {
  border-style: dashed;
  border-color: var(--line);
}

/* ---------- 提醒通道 ---------- */
.page-products .channel-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .channel {
  display: grid;
  grid-template-columns: 12px 1fr;
  grid-template-areas:
    "dot name"
    "dot desc";
  gap: 2px 14px;
  padding: 15px 18px;
  background: var(--moss);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-products .channel-dot {
  grid-area: dot;
  align-self: start;
  margin-top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rock);
}

.page-products .channel-dot--lime {
  background: var(--lime);
}

.page-products .channel-dot--orange {
  background: var(--orange);
}

.page-products .channel-dot--pulse {
  background: var(--pulse);
}

.page-products .channel-name {
  grid-area: name;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
}

.page-products .channel-desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.65;
  color: var(--pale);
}

/* ---------- 步骤 ---------- */
.page-products .step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: pp-step;
}

.page-products .step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--ink);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--clay);
  border-radius: var(--radius);
}

.page-products .step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--lime);
  padding-top: 2px;
}

.page-products .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--pale);
}

.page-products .step-list--compact {
  margin-top: 20px;
}

/* ---------- 变更对照 ---------- */
.page-products .change-section {
  border-top: 1px solid var(--line);
}

.page-products .shift-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 32px;
}

.page-products .shift-card {
  padding: 22px 22px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: var(--ink);
}

.page-products .shift-card h3 {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--paper);
  margin: 14px 0 10px;
}

.page-products .shift-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--pale);
}

.page-products .shift-card--old {
  border-color: rgba(180, 116, 79, 0.42);
  border-left: 3px solid var(--clay);
}

.page-products .shift-card--old h3 {
  color: rgba(242, 239, 230, 0.72);
  text-decoration: line-through;
  text-decoration-color: rgba(180, 116, 79, 0.7);
  text-decoration-thickness: 1px;
}

.page-products .shift-card--new {
  border-color: rgba(198, 255, 61, 0.32);
  border-left: 3px solid var(--lime);
  background: linear-gradient(160deg, rgba(198, 255, 61, 0.07), var(--ink) 62%);
}

.page-products .change-media {
  margin: 26px 0 0;
}

.page-products .change-foot {
  margin: 26px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
  max-width: 62ch;
}

.page-products .change-foot a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.4);
}

.page-products .change-foot a:hover {
  border-bottom-color: var(--lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .products-hero-side {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-products .products-hero {
    padding: 44px 0 68px;
  }

  .page-products .products-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    gap: var(--pp-gap);
    align-items: end;
  }

  .page-products .panel-body {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: 44px;
    align-items: start;
  }

  .page-products .change-media {
    margin-top: 34px;
  }
}

@media (min-width: 1000px) {
  .page-products .proj-tabs {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    align-items: start;
  }

  .page-products .proj-tabs-head {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    position: sticky;
    top: calc(var(--bar-h) + 26px);
  }

  .page-products .proj-tab {
    margin-left: -1px;
    padding: 15px 18px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    white-space: normal;
  }

  .page-products .proj-tab:hover {
    background: rgba(42, 59, 50, 0.5);
  }

  .page-products #pt-1:checked ~ .proj-tabs-head [for="pt-1"],
  .page-products #pt-2:checked ~ .proj-tabs-head [for="pt-2"],
  .page-products #pt-3:checked ~ .proj-tabs-head [for="pt-3"],
  .page-products #pt-4:checked ~ .proj-tabs-head [for="pt-4"] {
    border-color: transparent;
    border-left-color: var(--lime);
    background: linear-gradient(90deg, rgba(198, 255, 61, 0.12), rgba(198, 255, 61, 0) 82%);
  }
}

@media (min-width: 1280px) {
  .page-products .products-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.8fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .proj-panel {
    animation: none;
  }

  .page-products .metric-tip,
  .page-products .proj-tab,
  .page-products .metric-row {
    transition: none;
  }
}