.page-news {
  --news-cut-sm: 8px;
  --news-rail: 150px;
  display: block;
  background: var(--c-ink);
  color: var(--c-paper-hi);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-block: clamp(22px, 4vw, 52px);
  overflow: hidden;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-mint) 18%, var(--line-dark) 62%, transparent);
  pointer-events: none;
}

.page-news .news-hero__grid {
  align-items: start;
  row-gap: clamp(26px, 4vw, 42px);
}

.page-news .news-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 7vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 12px 0 0;
  color: var(--c-paper-hi);
}

.page-news .news-hero__intro {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.78;
  color: rgba(244, 240, 229, 0.78);
}

.page-news .news-hero__meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-dark);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--c-mute);
}

.page-news .news-hero__meta .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--c-mint);
}

.page-news .news-hero__visual .figure {
  margin: 0;
}

.page-news .news-hero__visual .frame {
  position: relative;
}

.page-news .news-hero__visual .frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(69, 224, 174, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(69, 224, 174, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* ---------- 置顶观察 ---------- */
.page-news .news-pinned {
  padding-block: clamp(22px, 3.6vw, 44px);
  color: var(--c-ink-2);
}

.page-news .news-pinned__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
}

.page-news .news-pinned__title {
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--c-ink-2);
}

.page-news .news-pinned__more {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(23, 24, 18, 0.16);
}

.page-news .news-pinned__toggle {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 4px 0;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: #55605a;
}

.page-news .news-pinned__toggle::-webkit-details-marker {
  display: none;
}

.page-news .news-pinned__toggle::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--c-mint-deep);
  transform: rotate(45deg);
  transition: transform 0.18s ease;
}

.page-news .news-pinned__more[open] .news-pinned__toggle::before {
  transform: rotate(225deg);
}

.page-news .news-pinned__body {
  margin-top: 12px;
  max-width: 74ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(23, 24, 18, 0.86);
}

.page-news .news-pinned__body p {
  margin: 0 0 10px;
}

.page-news .news-pinned__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 笔记列表 ---------- */
.page-news .news-log {
  padding-block: clamp(28px, 4.6vw, 60px);
}

.page-news .news-log__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  color: var(--c-paper-hi);
}

.page-news .news-log__lead {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.76;
  color: rgba(244, 240, 229, 0.72);
}

.page-news .news-log__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(20px, 3vw, 32px) 0 clamp(22px, 3vw, 34px);
}

.page-news .news-tag {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line-soft);
  background: var(--c-night);
  color: var(--c-mute);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1;
  padding: 9px 13px;
  cursor: pointer;
  clip-path: polygon(
    8px 0,
    100% 0,
    100% calc(100% - 8px),
    calc(100% - 8px) 100%,
    0 100%,
    0 8px
  );
  transition: color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}

.page-news .news-log__filters > .news-tag:nth-child(3n + 1) {
  background: #0d1b2a;
}

.page-news .news-log__filters > .news-tag:nth-child(3n + 2) {
  background: #101f2c;
}

.page-news .news-log__filters > .news-tag:nth-child(3n) {
  background: #12232a;
}

.page-news .news-tag:hover {
  color: var(--c-paper-hi);
  border-color: var(--line-mint);
}

.page-news .news-tag:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--c-ink), 0 0 0 4px var(--c-mint);
}

.page-news .news-tag[aria-selected="true"] {
  background: var(--c-turf);
  color: var(--c-mint);
  border-color: var(--line-mint);
  box-shadow: inset 0 -2px 0 var(--c-mint);
}

.page-news .news-panel[hidden] {
  display: none;
}

.page-news .news-track {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-news .news-track::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--line-mint), var(--line-dark) 72%, transparent);
}

.page-news .news-item {
  position: relative;
  padding: 0 0 26px 26px;
}

.page-news .news-item:last-child {
  padding-bottom: 4px;
}

.page-news .news-item__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c-ink);
  border: 1px solid var(--c-mute);
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-news .news-item:hover .news-item__dot,
.page-news .news-item:focus-within .news-item__dot {
  background: var(--c-mint);
  border-color: var(--c-mint);
  box-shadow: 0 0 0 5px rgba(69, 224, 174, 0.14);
}

.page-news .news-item__meta {
  margin-bottom: 8px;
}

.page-news .news-item__when {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--c-mute);
  padding: 4px 8px;
  border: 1px solid var(--line-soft);
  clip-path: polygon(
    6px 0,
    100% 0,
    100% calc(100% - 6px),
    calc(100% - 6px) 100%,
    0 100%,
    0 6px
  );
}

.page-news .news-item__title {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--c-paper-hi);
  transition: color 0.16s ease;
}

.page-news .news-item:hover .news-item__title,
.page-news .news-item:focus-within .news-item__title {
  color: var(--c-mint);
}

.page-news .news-item__line {
  margin: 0;
  max-width: 64ch;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(244, 240, 229, 0.72);
}

.page-news .news-item__line a {
  color: var(--c-mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-panel__figure {
  margin: 20px 0 0;
}

.page-news .news-panel__figure .figure {
  margin: 0;
}

/* ---------- 专题系列 ---------- */
.page-news .news-series {
  padding-block: clamp(28px, 4.6vw, 60px);
}

.page-news .news-series__title {
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  color: var(--c-paper-hi);
}

.page-news .news-series__lead {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.76;
  color: rgba(244, 240, 229, 0.74);
}

.page-news .news-series__grid {
  margin-top: clamp(22px, 3.4vw, 40px);
  row-gap: 34px;
  align-items: start;
}

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

.page-news .news-series__item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.page-news .news-series__item summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 18px 4px;
  transition: background 0.16s ease;
}

.page-news .news-series__item summary::-webkit-details-marker {
  display: none;
}

.page-news .news-series__item summary:hover,
.page-news .news-series__item summary:focus-visible {
  background: rgba(69, 224, 174, 0.05);
}

.page-news .news-series__item summary:focus-visible {
  outline: 2px solid var(--c-mint);
  outline-offset: 2px;
}

.page-news .news-series__code {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-mint);
}

.page-news .news-series__name {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 22px);
  letter-spacing: -0.01em;
  color: var(--c-paper-hi);
}

.page-news .news-series__count {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-mute);
  white-space: nowrap;
}

.page-news .news-series__body {
  padding: 0 4px 22px 42px;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(244, 240, 229, 0.76);
}

.page-news .news-series__body p {
  margin: 0 0 10px;
}

.page-news .news-series__body ul {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
}

.page-news .news-series__body li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 5px;
}

.page-news .news-series__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 1px;
  background: var(--c-mint);
}

.page-news .news-series__visual .figure {
  margin: 0;
}

/* ---------- 口径变更日志 ---------- */
.page-news .news-change {
  padding-block: clamp(28px, 4.6vw, 60px);
}

.page-news .news-change__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.8vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  color: var(--c-paper-hi);
}

.page-news .news-change__lead {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 240, 229, 0.72);
}

.page-news .news-change__scroll {
  margin-top: 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news .news-change__table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-news .news-change__table caption {
  text-align: left;
  padding-bottom: 10px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-mute);
}

.page-news .news-change__table th,
.page-news .news-change__table td {
  text-align: left;
  padding: 12px 16px 12px 0;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

.page-news .news-change__table th {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--c-mute);
  border-bottom-color: var(--line-dark);
}

.page-news .news-change__table td {
  color: rgba(244, 240, 229, 0.86);
  line-height: 1.6;
}

.page-news .news-change__table tbody tr:hover {
  background: rgba(69, 224, 174, 0.045);
}

.page-news .news-change__table .num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  color: var(--c-mint);
  width: 62px;
}

/* ---------- 来稿与纠错 ---------- */
.page-news .news-submit {
  padding-block: clamp(28px, 4.6vw, 60px);
  color: var(--c-ink-2);
}

.page-news .news-submit__inner {
  display: grid;
  gap: 28px;
}

.page-news .news-submit__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  color: var(--c-ink-2);
}

.page-news .news-submit__text p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(23, 24, 18, 0.84);
}

.page-news .news-submit__text a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-submit__aside {
  background: var(--c-paper-hi);
  border: 1px solid rgba(23, 24, 18, 0.14);
  padding: 20px 22px;
  clip-path: polygon(
    14px 0,
    100% 0,
    100% calc(100% - 14px),
    calc(100% - 14px) 100%,
    0 100%,
    0 14px
  );
}

.page-news .news-submit__aside dl {
  margin: 0;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 11px 16px;
  font-size: 14px;
}

.page-news .news-submit__aside dt {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #6a746c;
  padding-top: 2px;
}

.page-news .news-submit__aside dd {
  margin: 0;
  color: var(--c-ink-2);
  line-height: 1.6;
  word-break: break-word;
}

.page-news .news-submit__aside a {
  color: var(--c-mint-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 860px) {
  .page-news .news-item {
    display: grid;
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    column-gap: 28px;
    padding-left: 30px;
    padding-bottom: 28px;
  }

  .page-news .news-item__meta {
    margin-bottom: 0;
    grid-column: 1;
  }

  .page-news .news-item__body {
    grid-column: 2;
  }

  .page-news .news-panel__figure {
    margin-left: 30px;
  }

  .page-news .news-series__body {
    padding-left: 46px;
  }
}

@media (min-width: 900px) {
  .page-news .news-submit__inner {
    grid-template-columns: 7fr 5fr;
    gap: 46px;
    align-items: start;
  }
}

@media (max-width: 640px) {
  .page-news .news-hero__meta {
    gap: 8px 18px;
    font-size: 13px;
  }

  .page-news .news-tag {
    font-size: 12.5px;
    padding: 8px 11px;
  }

  .page-news .news-series__item summary {
    grid-template-columns: 26px minmax(0, 1fr);
    row-gap: 4px;
  }

  .page-news .news-series__count {
    grid-column: 2;
  }

  .page-news .news-series__body {
    padding-left: 4px;
  }

  .page-news .news-submit__aside dl {
    grid-template-columns: 1fr;
    gap: 4px 0;
  }

  .page-news .news-submit__aside dt {
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item__dot,
  .page-news .news-item__title,
  .page-news .news-tag,
  .page-news .news-pinned__toggle::before {
    transition: none;
  }
}
<<<END>>>