.page-articles-popular {
  --pop-tag-neutral: color-mix(in srgb, var(--color-ink-soft) 26%, transparent);
  --pop-edge: color-mix(in srgb, var(--color-line) 82%, transparent);
  --pop-edge-lit: color-mix(in srgb, var(--color-primary) 58%, transparent);
  position: relative;
}

/* ---------- 面包屑 ---------- */
.page-articles-popular .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-2);
  padding-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-articles-popular .crumb a {
  color: var(--color-ink-soft);
  text-decoration: none;
}

.page-articles-popular .crumb a:hover {
  color: var(--color-accent);
}

.page-articles-popular .crumb [aria-current="page"] {
  color: var(--color-ink);
}

/* ---------- 首屏 ---------- */
.page-articles-popular .pop-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
}

.page-articles-popular h1 {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 5.6vw, var(--text-3xl));
  font-weight: 750;
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  text-shadow: 0 0 22px color-mix(in srgb, var(--color-primary) 45%, transparent);
}

.page-articles-popular .pop-hero__intro {
  max-width: 46ch;
  margin: var(--space-3) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles-popular .pop-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-articles-popular .pop-fact {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding-left: var(--space-3);
  border-left: 2px solid color-mix(in srgb, var(--color-accent) 55%, transparent);
}

.page-articles-popular .pop-fact__no {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0;
}

.page-articles-popular .pop-fact__label {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-articles-popular .pop-hero__frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}

.page-articles-popular .pop-hero__frame-cap {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  font-weight: 600;
}

/* ---------- 定位条 ---------- */
.page-articles-popular .locator {
  max-width: var(--measure);
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-primary);
}

.page-articles-popular .locator__lead {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 650;
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-articles-popular .locator__note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-articles-popular .locator__note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 区块标题 ---------- */
.page-articles-popular .sec-head {
  max-width: 58ch;
  margin-bottom: var(--space-6);
}

.page-articles-popular .sec-head--tight {
  margin-bottom: var(--space-4);
}

.page-articles-popular .sec-head h2 {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-xl), 3.4vw, var(--text-2xl));
  font-weight: 700;
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-articles-popular .sec-head__note {
  margin: var(--space-2) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 条目区 ---------- */
.page-articles-popular .entry-board {
  position: relative;
  display: grid;
  gap: var(--space-4);
}

.page-articles-popular .entry-board__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.page-articles-popular .entry-board__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
}

.page-articles-popular .entry-board__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--color-surface) 0%, color-mix(in srgb, var(--color-surface) 55%, transparent) 45%, var(--color-surface) 100%);
}

.page-articles-popular .entry-board > *:not(.entry-board__bg) {
  position: relative;
  z-index: 1;
}

.page-articles-popular .entry-group__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-articles-popular .entry-group__no {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  padding: 2px var(--space-1);
  border: 1px solid var(--pop-edge);
  border-radius: var(--radius-sm);
}

.page-articles-popular .entry-group__title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 650;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-articles-popular .entry-group__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-articles-popular .entry-group:hover .entry__no,
.page-articles-popular .entry-group:focus-within .entry__no {
  color: var(--color-accent);
}

.page-articles-popular .entry-list {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-articles-popular .entry {
  border: 1px solid var(--pop-edge);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface-alt) 72%, transparent);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.page-articles-popular .entry:hover,
.page-articles-popular .entry:focus-within {
  border-color: var(--pop-edge-lit);
  box-shadow: var(--shadow-1);
}

.page-articles-popular .entry__det {
  border-radius: inherit;
}

.page-articles-popular .entry__sum {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  list-style: none;
  cursor: pointer;
}

.page-articles-popular .entry__sum::-webkit-details-marker {
  display: none;
}

.page-articles-popular .entry__sum::marker {
  content: "";
}

.page-articles-popular .entry__no {
  flex: 0 0 auto;
  width: 2.4rem;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-ink-muted);
  letter-spacing: 0;
  transition: color 200ms ease;
}

.page-articles-popular .entry__main {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
  flex: 1 1 auto;
}

.page-articles-popular .entry__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.page-articles-popular .entry__title {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 650;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-articles-popular .entry__tag {
  font-size: var(--text-xs);
  background: var(--pop-tag-neutral);
  color: var(--color-ink);
  border: 1px solid var(--pop-edge);
}

.page-articles-popular .entry-group[data-group="record"] .entry__tag {
  background: color-mix(in srgb, var(--color-primary) 26%, transparent);
  border-color: color-mix(in srgb, var(--color-primary) 52%, transparent);
}

.page-articles-popular .entry-group[data-group="find"] .entry__tag {
  background: color-mix(in srgb, var(--color-accent) 18%, transparent);
  border-color: color-mix(in srgb, var(--color-accent) 42%, transparent);
}

.page-articles-popular .entry__why {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-articles-popular .entry__chev {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-right: 2px solid var(--color-ink-muted);
  border-bottom: 2px solid var(--color-ink-muted);
  transform: rotate(45deg);
  transition: transform 200ms ease, border-color 200ms ease;
}

.page-articles-popular .entry__det[open] .entry__chev {
  transform: rotate(-135deg);
  border-color: var(--color-accent);
}

.page-articles-popular .entry__body {
  margin: 0 var(--space-3) var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--pop-edge);
}

.page-articles-popular .entry__meta {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.page-articles-popular .entry__meta-row {
  padding-left: var(--space-2);
  border-left: 2px solid color-mix(in srgb, var(--color-accent) 45%, transparent);
}

.page-articles-popular .entry__meta dt {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.page-articles-popular .entry__meta dd {
  margin: var(--space-1) 0 0;
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-articles-popular .entry__meta-row:nth-child(3) {
  border-left-color: color-mix(in srgb, var(--color-line) 90%, transparent);
}

/* ---------- 阅读顺序 ---------- */
.page-articles-popular .order-wrap {
  position: relative;
  padding: var(--space-4) var(--space-3);
  border: 1px solid var(--pop-edge);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--color-surface-alt) 60%, transparent);
  overflow: hidden;
}

.page-articles-popular .order-wrap__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-articles-popular .order-wrap__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
}

.page-articles-popular .order-wrap__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 50% 110%, color-mix(in srgb, var(--color-primary) 22%, transparent) 0%, var(--color-surface) 72%);
  opacity: 0.94;
}

.page-articles-popular .order-wrap > *:not(.order-wrap__bg) {
  position: relative;
  z-index: 1;
}

.page-articles-popular .route-switch {
  position: relative;
  display: grid;
  gap: var(--space-4);
}

.page-articles-popular .route-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-articles-popular .route-switch__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-articles-popular .route-switch__tab {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--pop-edge);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-surface-deep) 55%, transparent);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-soft);
  cursor: pointer;
  transition: color 200ms ease, background-color 200ms ease, border-color 200ms ease;
}

.page-articles-popular .route-switch__input:focus-visible ~ .route-switch__tabs .route-switch__tab {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-articles-popular #goal-record:checked ~ .route-switch__tabs [for="goal-record"],
.page-articles-popular #goal-content:checked ~ .route-switch__tabs [for="goal-content"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-articles-popular .route-switch__panel {
  display: none;
}

.page-articles-popular #goal-record:checked ~ .route-switch__panel[data-panel="record"],
.page-articles-popular #goal-content:checked ~ .route-switch__panel[data-panel="content"] {
  display: block;
}

.page-articles-popular .path__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-articles-popular .path__line {
  fill: none;
  stroke: color-mix(in srgb, var(--color-primary) 78%, transparent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 7 9;
}

.page-articles-popular .path__dot {
  fill: var(--color-surface-deep);
  stroke: var(--color-ink-soft);
  stroke-width: 2;
}

.page-articles-popular .path__dot--end {
  fill: var(--color-accent);
  stroke: var(--color-accent);
  filter: drop-shadow(0 0 10px color-mix(in srgb, var(--color-accent) 60%, transparent));
}

.page-articles-popular .path__steps {
  display: grid;
  gap: var(--space-3);
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
}

.page-articles-popular .path__step {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-2);
  border-top: 2px solid color-mix(in srgb, var(--color-accent) 40%, transparent);
}

.page-articles-popular .path__no {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0;
}

.page-articles-popular .path__text {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-ink);
}

.page-articles-popular .path__save {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  margin: var(--space-4) 0 0;
  padding-left: var(--space-3);
  border-left: 2px solid color-mix(in srgb, var(--color-primary) 55%, transparent);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-articles-popular .path__save-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 2px var(--space-1);
}

/* ---------- 相邻主题 ---------- */
.page-articles-popular .next__list {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-articles-popular .next__link {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  padding: var(--space-3) var(--space-3) var(--space-3) 0;
  border-top: 1px solid var(--pop-edge);
  text-decoration: none;
  transition: border-color 200ms ease;
}

.page-articles-popular .next__link:hover,
.page-articles-popular .next__link:focus-visible {
  border-top-color: var(--color-accent);
}

.page-articles-popular .next__no {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-ink-muted);
  letter-spacing: 0;
}

.page-articles-popular .next__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 650;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-articles-popular .next__desc {
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-articles-popular .entry__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-articles-popular .entry__meta-row:nth-child(3) {
    grid-column: 1 / -1;
  }

  .page-articles-popular .path__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-articles-popular .order-wrap {
    padding: var(--space-6) var(--space-4);
  }
}

@media (min-width: 900px) {
  .page-articles-popular .pop-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: var(--space-8);
  }

  .page-articles-popular .next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2) var(--space-6);
  }

  .page-articles-popular .entry__sum {
    padding: var(--space-3) var(--space-4);
    align-items: center;
  }

  .page-articles-popular .entry__no {
    font-size: var(--text-xl);
  }

  .page-articles-popular .entry__body {
    margin: 0 var(--space-4) var(--space-4);
    padding-left: calc(2.4rem + var(--space-3));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-articles-popular .entry,
  .page-articles-popular .entry__no,
  .page-articles-popular .entry__chev,
  .page-articles-popular .route-switch__tab,
  .page-articles-popular .next__link {
    transition: none;
  }

  .page-articles-popular .entry__det[open] .entry__chev {
    transform: rotate(45deg);
  }
}