.page-news {
  background: var(--ink);
  color: var(--paper);
  padding-bottom: 0;
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-news .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-news .breadcrumb .link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms ease, border-color 200ms ease;
}

.page-news .breadcrumb .link:hover {
  color: var(--ember);
  border-bottom-color: var(--orange);
}

/* ---------- 刊头 ---------- */
.page-news .pn-masthead {
  max-width: 880px;
  padding: 28px 0 54px;
}

.page-news .pn-masthead__kicker {
  display: inline-block;
  margin: 0 0 20px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--ember);
}

.page-news .pn-masthead__title {
  margin: 0 0 22px;
  font-family: var(--font-cn);
  font-size: clamp(42px, 12vw, 88px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-news .pn-masthead__title::after {
  content: "";
  display: block;
  width: 76px;
  height: 3px;
  margin-top: 24px;
  background: linear-gradient(90deg, var(--orange), var(--red));
}

.page-news .pn-masthead__lead {
  margin: 0;
  max-width: 38em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 轮次索引条 ---------- */
.page-news .pn-roundbar {
  padding: 0 0 8px;
}

.page-news .pn-roundbar__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 0 0 14px;
  flex-wrap: wrap;
}

.page-news .pn-roundbar__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .26em;
  color: var(--orange);
}

.page-news .pn-roundbar__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-news .pn-roundbar__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-news .pn-roundbar__list::-webkit-scrollbar {
  height: 4px;
}

.page-news .pn-roundbar__list::-webkit-scrollbar-thumb {
  background: var(--line);
}

.page-news .pn-roundbar__item {
  flex: 0 0 auto;
}

.page-news .pn-roundbar__link {
  display: block;
  padding: 16px 20px;
  border-right: 1px solid var(--line);
  font-family: var(--font-cn);
  font-size: 14px;
  line-height: 1.4;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: color 220ms ease, background-color 220ms ease;
}

.page-news .pn-roundbar__link:hover {
  color: var(--paper);
  background: var(--ink-2);
}

.page-news .pn-roundbar__link.is-active {
  background: var(--orange);
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 置顶观察大卡 ---------- */
.page-news .pn-feature {
  margin-top: 32px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-news .pn-feature__media {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--deep-teal);
  overflow: hidden;
}

.page-news .pn-feature__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-news .pn-feature__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 14, 20, 0.02) 34%, rgba(11, 14, 20, 0.88) 100%);
  pointer-events: none;
}

.page-news .pn-feature__body {
  padding: 26px 22px 32px;
  border-top: 2px solid var(--orange);
}

.page-news .pn-feature__title {
  margin: 16px 0 16px;
  font-family: var(--font-cn);
  font-size: clamp(24px, 6vw, 38px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-news .pn-feature__excerpt {
  margin: 0 0 26px;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-news .pn-feature__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin: 0 0 28px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.page-news .pn-feature__stats li {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-news .pn-feature__stats .stat__value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-news .pn-feature__stats .stat__value--orange {
  color: var(--orange);
}

.page-news .pn-feature__stats .stat__value--cyan {
  color: var(--cyan);
}

.page-news .pn-feature__stats .stat__label {
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- 分类标签区 ---------- */
.page-news .pn-cats__head {
  max-width: 720px;
  margin-bottom: 30px;
}

.page-news .pn-cats__head .section-num {
  display: block;
  margin-bottom: 10px;
  opacity: .72;
}

.page-news .pn-cats__head .section__title {
  margin: 0 0 14px;
}

.page-news .pn-cats__head .section__lead {
  margin: 0;
}

.page-news .pn-cats__media {
  margin: 0 0 28px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-news .pn-cats__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-news .pn-cats__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-news .pn-cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-news .pn-cats__item {
  padding: 24px 20px;
  background: var(--ink);
  transition: background-color 220ms ease;
}

.page-news .pn-cats__item:hover {
  background: var(--ink-2);
}

.page-news .pn-cats__count {
  display: block;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--orange);
}

.page-news .pn-cats__name {
  margin: 0 0 8px;
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-cats__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 观察条目列表 ---------- */
.page-news .pn-list__head {
  max-width: 720px;
  margin-bottom: 32px;
}

.page-news .pn-list__head .section-num {
  display: block;
  margin-bottom: 10px;
  opacity: .72;
}

.page-news .pn-list__head .section__title {
  margin: 0 0 14px;
}

.page-news .pn-list__head .section__lead {
  margin: 0;
}

.page-news .pn-list__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-news .pn-list__rail-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--mist);
}

.page-news .pn-list__rail .pill-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .pn-list__rail .pill {
  font-size: 12.5px;
  padding: 7px 13px;
}

.page-news .pn-list__entries {
  min-width: 0;
}

.page-news .pn-group {
  scroll-margin-top: 88px;
}

.page-news .pn-group + .pn-group {
  margin-top: 46px;
}

.page-news .pn-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-news .pn-group__title {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-news .pn-group__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  white-space: nowrap;
}

.page-news .pn-group__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .pn-entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 22px 0 22px;
  border-bottom: 1px solid var(--line);
  transition: border-color 220ms ease;
}

.page-news .pn-entry:hover {
  border-bottom-color: var(--orange);
}

.page-news .pn-entry__round {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-news .pn-entry__body {
  min-width: 0;
}

.page-news .pn-entry__title {
  margin: 0 0 10px;
  font-family: var(--font-cn);
  font-size: clamp(17px, 3.6vw, 20px);
  font-weight: 700;
  line-height: 1.48;
  color: var(--paper);
}

.page-news .pn-entry__thumb {
  margin: 0 0 14px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-news .pn-entry__thumb img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-news .pn-entry__excerpt {
  margin: 0 0 14px;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .pn-entry__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 专题系列 ---------- */
.page-news .pn-series__head {
  max-width: 780px;
  margin-bottom: 34px;
}

.page-news .pn-series__head .section-num {
  display: block;
  margin-bottom: 10px;
  opacity: .72;
}

.page-news .pn-series__head .section__title {
  margin: 0 0 14px;
}

.page-news .pn-series__head .section__lead {
  margin: 0;
}

.page-news .pn-series__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-news .pn-series__cover {
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-news .pn-series__cover img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-news .pn-series__track {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .pn-series__item {
  position: relative;
  padding: 16px 0 16px 22px;
  border-bottom: 1px solid var(--line);
}

.page-news .pn-series__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 23px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line);
}

.page-news .pn-series__item.is-done::before {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 26, 0.16);
}

.page-news .pn-series__item.is-next::before {
  background: transparent;
  border: 1px solid var(--line);
}

.page-news .pn-series__idx {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-news .pn-series__item.is-next .pn-series__idx {
  color: var(--mist);
}

.page-news .pn-series__item-title {
  margin: 0 0 6px;
  font-family: var(--font-cn);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .pn-series__item.is-next .pn-series__item-title {
  color: var(--mist);
}

.page-news .pn-series__item-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 回看入口 ---------- */
.page-news .pn-lookback {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.page-news .pn-lookback__title {
  margin: 0 0 12px;
  font-family: var(--font-cn);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-lookback__text {
  margin: 0 0 20px;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .pn-lookback__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 栅格与响应式 ---------- */
@media (min-width: 640px) {
  .page-news .pn-cats__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-news .pn-masthead {
    padding: 36px 0 64px;
  }

  .page-news .pn-entry {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
    padding: 24px 0;
  }

  .page-news .pn-entry__round {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: .22em;
    color: var(--mist);
    padding-top: 3px;
  }

  .page-news .pn-feature__body {
    padding: 30px 32px 36px;
  }

  .page-news .pn-series__track {
    border-top: 1px solid var(--line);
  }
}

@media (min-width: 900px) {
  .page-news .pn-series__grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-news .pn-list__layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 46px;
  }

  .page-news .pn-list__rail {
    position: sticky;
    top: 92px;
    align-self: start;
  }
}

@media (min-width: 1024px) {
  .page-news .pn-cats__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .pn-cats__item {
    padding: 28px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-entry,
  .page-news .pn-roundbar__link,
  .page-news .pn-cats__item {
    transition: none;
  }
}
<<<END>>>