.page-news {
  --jn-cut: 14px;
  --jn-row-gap: clamp(18px, 3vw, 30px);
  display: block;
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 首屏 ---------- */
.page-news .jn-head {
  position: relative;
  padding: clamp(18px, 3.5vw, 32px) 0 clamp(28px, 5vw, 52px);
  border-bottom: 1px solid var(--line-strong);
  background-color: var(--paper-white);
  background-image: repeating-linear-gradient(
    to right,
    rgba(20, 24, 28, .055) 0 1px,
    transparent 1px 92px
  );
}

.page-news .jn-head__inner {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
}

.page-news .jn-head__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--copper);
}

.page-news h1 {
  margin: 0 0 18px;
  font-size: clamp(40px, 9vw, 78px);
  line-height: 1.02;
  font-weight: 900;
  letter-spacing: .05em;
  color: var(--archive-navy);
}

.page-news .jn-lede {
  max-width: 58ch;
  margin: 0 0 14px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--ink);
}

.page-news .jn-lede--sub {
  margin-bottom: 24px;
  color: var(--graphite);
}

.page-news .jn-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.page-news .jn-fact {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: var(--paper-white);
}

.page-news .jn-fact__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--graphite);
}

.page-news .jn-fact__v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 700;
  color: var(--blue);
}

/* ---------- 图片 ---------- */
.page-news .figure {
  margin: 0;
}

.page-news .figure__frame {
  overflow: hidden;
  background: var(--paper);
  clip-path: polygon(
    0 0,
    calc(100% - var(--jn-cut)) 0,
    100% var(--jn-cut),
    100% 100%,
    0 100%
  );
  box-shadow: inset 0 0 0 1px var(--line);
}

.page-news .figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--graphite);
}

/* ---------- 批次刻度带 ---------- */
.page-news .jn-ruler-zone {
  padding: clamp(22px, 4vw, 36px) 0 clamp(26px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-news .jn-ruler__hint {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--graphite);
}

.page-news .jn-ruler {
  display: flex;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper-white);
}

.page-news .jn-tick {
  position: relative;
  flex: 0 0 auto;
  min-width: 128px;
  display: grid;
  gap: 7px;
  padding: 18px 16px 14px;
  scroll-snap-align: start;
  border-right: 1px dashed var(--line-strong);
  color: var(--ink);
  text-decoration: none;
  transition: background-color .16s ease;
}

.page-news .jn-tick::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16px;
  width: 9px;
  height: 9px;
  background: var(--blue);
  transform: translateY(-50%) rotate(45deg);
  transition: width .16s ease, height .16s ease, background-color .16s ease;
}

.page-news .jn-tick:hover,
.page-news .jn-tick:focus-visible {
  background: rgba(227, 162, 114, .3);
}

.page-news .jn-tick.is-current::before {
  width: 15px;
  height: 15px;
  background: var(--copper);
}

.page-news .jn-tick__code {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--archive-navy);
}

.page-news .jn-tick__label {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--graphite);
}

.page-news .jn-chart {
  margin-top: clamp(22px, 3.5vw, 34px);
}

/* ---------- 日志区块 ---------- */
.page-news .jn-log {
  padding: clamp(34px, 6vw, 64px) 0 clamp(30px, 5vw, 56px);
}

.page-news .jn-log__head h2,
.page-news .jn-topics h2,
.page-news .jn-cadence h2,
.page-news .jn-code h2,
.page-news .jn-next h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.24;
  font-weight: 900;
  letter-spacing: .03em;
  color: var(--archive-navy);
}

.page-news .jn-log__hint,
.page-news .jn-topics__lede {
  max-width: 66ch;
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-news .jn-filters {
  display: grid;
  gap: 14px;
  padding: 0 0 clamp(16px, 2.4vw, 24px);
  border-bottom: 1px solid var(--line-strong);
}

.page-news .jn-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .jn-filter__label {
  min-width: 44px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--copper);
}

.page-news .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .chip {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: .04em;
  padding: 7px 15px;
  border: 1px solid var(--line-strong);
  background: var(--paper-white);
  color: var(--ink);
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
  clip-path: polygon(
    0 0,
    calc(100% - 8px) 0,
    100% 8px,
    100% 100%,
    0 100%
  );
}

.page-news .chip:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.page-news .chip.is-active,
.page-news .chip[aria-pressed="true"] {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--paper-white);
}

.page-news .chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 条目流 ---------- */
.page-news .jn-list {
  border-top: 1px solid var(--line-strong);
}

.page-news .jn-item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 18px 8px 18px 20px;
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background-color .18s ease;
}

.page-news .jn-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: var(--graphite);
  transition: width .18s ease;
}

.page-news .jn-item[data-line="after"]::before { background: var(--green); }
.page-news .jn-item[data-line="accept"]::before { background: var(--blue); }
.page-news .jn-item[data-line="repair"]::before { background: var(--copper); }
.page-news .jn-item[data-line="reg"]::before { background: var(--graphite); }

.page-news .jn-item:hover {
  background: var(--paper-white);
}

.page-news .jn-item:hover::before {
  width: 4px;
}

.page-news .jn-item__no {
  justify-self: start;
  display: inline-block;
  padding: 4px 9px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--archive-navy);
  background: rgba(227, 162, 114, .45);
  border-left: 2px solid var(--copper);
}

.page-news .jn-item__main {
  min-width: 0;
}

.page-news .jn-item__title {
  margin: 6px 0 0;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.5;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-news .jn-item__title a {
  color: inherit;
  text-decoration: none;
}

.page-news .jn-item__title a:hover,
.page-news .jn-item__title a:focus-visible {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news .jn-item__sum {
  margin: 8px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
  transition: color .18s ease;
}

.page-news .jn-item:hover .jn-item__sum {
  color: var(--ink);
}

.page-news .jn-item__tag {
  justify-self: start;
  align-self: start;
  padding: 5px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--graphite);
  border: 1px solid var(--line-strong);
  white-space: nowrap;
}

/* ---------- 专题 ---------- */
.page-news .jn-topics {
  padding: clamp(32px, 5.5vw, 60px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-white);
}

.page-news .jn-topics__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.page-news .jn-topic {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper-white);
  border-top: 3px solid var(--blue);
}

.page-news .jn-topic--lead {
  border-top-color: var(--copper);
}

.page-news .jn-topic:last-child {
  border-top-color: var(--green);
}

.page-news .jn-topic__no {
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--copper);
}

.page-news .jn-topic h3 {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.45;
  font-weight: 700;
  color: var(--archive-navy);
}

.page-news .jn-topic p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-news .jn-topic__link {
  align-self: end;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--blue-light);
  padding-bottom: 2px;
  justify-self: start;
}

.page-news .jn-topic__link:hover,
.page-news .jn-topic__link:focus-visible {
  color: var(--copper);
  border-bottom-color: var(--copper);
}

/* ---------- 发布节奏 ---------- */
.page-news .jn-cadence {
  padding: clamp(34px, 6vw, 66px) 0;
  background: var(--paper);
}

.page-news .jn-cadence__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-news .jn-cadence__list {
  margin: 22px 0 0;
  border-top: 1px solid var(--line-strong);
}

.page-news .jn-cadence__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .jn-cadence__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--blue);
}

.page-news .jn-cadence__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .jn-cadence__text > p {
  max-width: 62ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--graphite);
}

/* ---------- 批次编号 ---------- */
.page-news .jn-code {
  padding: clamp(36px, 6vw, 68px) 0;
  background: var(--archive-navy);
  color: var(--on-navy);
}

.page-news .jn-code__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 50px);
  align-items: start;
}

.page-news .jn-code .eyebrow {
  color: var(--copper-light);
}

.page-news .jn-code h2 {
  color: var(--paper-white);
}

.page-news .jn-code__text > p {
  max-width: 62ch;
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--on-navy);
}

.page-news .jn-code__demo {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 24px;
}

.page-news .jn-code__seg {
  display: grid;
  gap: 6px;
  min-width: 100px;
  padding: 14px 16px;
  border: 1px solid rgba(201, 214, 225, .35);
  background: rgba(255, 255, 255, .05);
}

.page-news .jn-code__seg b {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--copper-light);
}

.page-news .jn-code__seg i {
  font-style: normal;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--on-navy);
}

.page-news .jn-code .figure__frame {
  background: rgba(255, 255, 255, .06);
  box-shadow: inset 0 0 0 1px rgba(201, 214, 225, .28);
}

.page-news .jn-code .figure__caption {
  color: var(--on-navy);
}

/* ---------- 下一步 ---------- */
.page-news .jn-next {
  padding: clamp(32px, 5.5vw, 60px) 0 0;
}

.page-news .jn-next__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-news .jn-next__intro p {
  max-width: 46ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-news .jn-next__links {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-news .jn-next__links li {
  border-bottom: 1px solid var(--line);
}

.page-news .jn-next__links a {
  display: block;
  padding: 15px 4px 15px 26px;
  position: relative;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--ink);
  text-decoration: none;
  transition: color .16s ease, padding-left .16s ease;
}

.page-news .jn-next__links a::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 50%;
  width: 8px;
  height: 8px;
  background: var(--copper);
  transform: translateY(-50%) rotate(45deg);
  transition: background-color .16s ease;
}

.page-news .jn-next__links a:hover,
.page-news .jn-next__links a:focus-visible {
  color: var(--blue);
  padding-left: 32px;
}

.page-news .jn-next__links a:hover::before,
.page-news .jn-next__links a:focus-visible::before {
  background: var(--cyan);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 479px) {
  .page-news .jn-facts {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .jn-filter__label {
    min-width: 100%;
  }

  .page-news .jn-item {
    padding-left: 16px;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 760px) {
  .page-news .jn-cadence__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }

  .page-news .jn-topics__grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }

  .page-news .jn-next__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 900px) {
  .page-news .jn-head__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-news .jn-cadence__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }

  .page-news .jn-code__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-news .jn-item {
    grid-template-columns: 118px minmax(0, 1fr) 114px;
    gap: 6px 26px;
    padding: 20px 10px 20px 24px;
  }

  .page-news .jn-item__title {
    margin-top: 0;
  }

  .page-news .jn-item__no {
    margin-top: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .jn-item,
  .page-news .jn-item::before,
  .page-news .jn-tick,
  .page-news .jn-tick::before,
  .page-news .chip,
  .page-news .jn-next__links a {
    transition: none;
  }
}
</main>