.page-news {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-news .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

/* ---------- 首屏 ---------- */
.page-news .intro {
  padding-block: clamp(1.25rem, 3.5vw, 2.5rem) clamp(1.75rem, 4.5vw, 3rem);
}

.page-news .intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-news .intro-kicker {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  color: var(--moss);
}

.page-news .intro-kicker__idx {
  color: var(--autumn);
  font-size: var(--fs-small);
  letter-spacing: .16em;
}

.page-news .intro h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.05rem, 6.4vw, 3.75rem);
  line-height: 1.16;
  letter-spacing: .045em;
  margin: .7rem 0 1rem;
  max-width: 20ch;
}

.page-news .intro-lead {
  font-size: var(--fs-lead);
  line-height: 1.75;
  color: var(--ink);
  max-width: 62ch;
  margin: 0;
}

.page-news .intro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.5rem;
}

.page-news .copy-btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  padding: .55rem .9rem;
  font-size: var(--fs-small);
  font-family: var(--font-mono);
  letter-spacing: .06em;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .copy-btn:hover {
  border-color: var(--autumn);
  background: var(--sand);
}

.page-news .intro-status {
  background: var(--pine);
  color: var(--paper);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 3px solid var(--autumn);
  scroll-margin-top: 5rem;
}

.page-news .status-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  color: var(--sand);
}

.page-news .status-batch {
  margin: .35rem 0 .1rem;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 4.5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--autumn);
  line-height: 1.1;
}

.page-news .status-time {
  margin: 0 0 1rem;
  font-size: var(--fs-small);
  color: var(--sand);
}

.page-news .status-list {
  list-style: none;
  margin: 0 0 1.15rem;
  padding: 0;
  border-top: 1px solid rgba(250, 248, 243, .22);
}

.page-news .status-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .5rem 0;
  font-size: var(--fs-small);
  border-bottom: 1px solid rgba(250, 248, 243, .22);
}

.page-news .status-list .mono {
  color: var(--autumn);
}

.page-news .status-link {
  display: inline-block;
  font-size: var(--fs-small);
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--spring);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .status-link:hover {
  color: var(--spring);
}

/* ---------- 横幅 ---------- */
.page-news .banner {
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .banner img,
.page-news .brief-media img,
.page-news .lab-media img,
.page-news .feature-cover img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 筛选 ---------- */
.page-news .news-shell {
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding-block: .9rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .nf {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-news .nf-btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-small);
  letter-spacing: .08em;
  padding: .42rem .85rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--moss);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .nf-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.page-news .nf:focus-visible + .nf-btn {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.page-news:has(#nf-all:checked) .nf-btn[for="nf-all"],
.page-news:has(#nf-brief:checked) .nf-btn[for="nf-brief"],
.page-news:has(#nf-note:checked) .nf-btn[for="nf-note"],
.page-news:has(#nf-lab:checked) .nf-btn[for="nf-lab"],
.page-news:has(#nf-field:checked) .nf-btn[for="nf-field"],
.page-news:has(#nf-feature:checked) .nf-btn[for="nf-feature"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.page-news:has(#nf-brief:checked) .block:not([data-cat="brief"]),
.page-news:has(#nf-note:checked) .block:not([data-cat="note"]),
.page-news:has(#nf-lab:checked) .block:not([data-cat="lab"]),
.page-news:has(#nf-field:checked) .block:not([data-cat="field"]),
.page-news:has(#nf-feature:checked) .block:not([data-cat="feature"]) {
  display: none;
}

.page-news:has(#nf-note:checked) .batch-rail,
.page-news:has(#nf-lab:checked) .batch-rail,
.page-news:has(#nf-field:checked) .batch-rail,
.page-news:has(#nf-feature:checked) .batch-rail {
  display: none;
}

/* ---------- 两栏结构 ---------- */
.page-news .stream {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
}

/* ---------- 批次索引 ---------- */
.page-news .rail-title {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  color: var(--moss);
}

.page-news .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.page-news .rail-item a {
  display: flex;
  align-items: baseline;
  gap: .4rem;
  padding: .32rem .55rem;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .rail-item a:hover {
  background: var(--sand);
}

.page-news .rail-idx {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .12em;
  color: var(--moss);
}

.page-news .rail-batch {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  font-weight: 600;
}

.page-news .rail-text {
  display: none;
  font-size: var(--fs-micro);
  color: var(--moss);
  line-height: 1.5;
}

.page-news .rail-item.is-current a {
  border-color: var(--autumn);
}

.page-news .rail-item.is-current .rail-batch {
  color: var(--ink);
}

/* ---------- 内容区块 ---------- */
.page-news .block {
  padding-block: clamp(1.25rem, 3.5vw, 2rem);
}

.page-news .block + .block {
  border-top: 1px solid var(--line);
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-news .block-head {
  margin-bottom: 1.25rem;
}

.page-news .block h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--fs-h2);
  letter-spacing: .05em;
  line-height: 1.25;
  margin: 0 0 .5rem;
}

.page-news .block-note {
  margin: 0;
  color: var(--moss);
  font-size: var(--fs-small);
  line-height: 1.7;
  max-width: 52ch;
}

.page-news .cat-tag {
  margin: 0 0 .45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .16em;
  color: var(--moss);
}

/* ---------- 头条简报 ---------- */
.page-news .brief--lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 5rem;
}

.page-news .brief-media {
  margin: 0;
}

.page-news .brief-body h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.2rem, 2.6vw, 1.6rem);
  line-height: 1.4;
  letter-spacing: .02em;
  margin: 0 0 .6rem;
}

.page-news .brief-text {
  margin: 0 0 .7rem;
  font-size: var(--fs-small);
  line-height: 1.78;
  color: var(--ink);
}

.page-news .brief-tools {
  margin: 0;
  font-size: var(--fs-micro);
  color: var(--moss);
  letter-spacing: .04em;
}

.page-news .brief-tools .mono {
  color: var(--pine);
}

/* ---------- 简报行 ---------- */
.page-news .brief-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .3rem .9rem;
  padding: .9rem .55rem;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 5rem;
  transition: background var(--dur) var(--ease);
}

.page-news .brief-row:hover {
  background: var(--sand);
}

.page-news .brief-row__batch {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--moss);
  letter-spacing: .06em;
}

.page-news .brief-row__main h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.45;
  letter-spacing: .015em;
  margin: 0 0 .25rem;
}

.page-news .brief-row__main p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--moss);
}

.page-news .brief-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem .8rem;
  align-items: baseline;
  font-size: var(--fs-micro);
  color: var(--pine);
}

.page-news .brief-row__time {
  font-family: var(--font-body);
  color: var(--moss);
}

/* ---------- 版本手记 ---------- */
.page-news .note {
  padding-block: 1.15rem;
  border-bottom: 1px solid var(--line);
}

.page-news .note:last-child {
  border-bottom: 0;
}

.page-news .note h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  line-height: 1.35;
  letter-spacing: .03em;
  margin: 0 0 .65rem;
}

.page-news .note > p {
  margin: 0 0 .5rem;
  font-size: var(--fs-body);
  line-height: 1.78;
  max-width: 64ch;
}

.page-news .note-more {
  margin-top: .6rem;
  border-top: 1px dashed var(--line);
  padding-top: .7rem;
}

.page-news .note-more summary {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .1em;
  color: var(--pine);
}

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

.page-news .note-more summary::before {
  content: "+";
  color: var(--winter);
  font-size: 1rem;
}

.page-news .note-more[open] summary::before {
  content: "−";
}

.page-news .note-more p {
  margin: .7rem 0 0;
  font-size: var(--fs-body);
  line-height: 1.78;
  max-width: 64ch;
}

/* ---------- 测试版观察 ---------- */
.page-news .lab-media {
  margin: 0 0 1.5rem;
}

.page-news .lab-rounds {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.25rem;
}

.page-news .lab-round {
  border-top: 2px solid var(--winter);
  padding-top: .75rem;
}

.page-news .lab-round__head {
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .12em;
  color: var(--winter);
}

.page-news .lab-round h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.45;
  letter-spacing: .015em;
  margin: 0 0 .4rem;
}

.page-news .lab-round p {
  margin: 0 0 .45rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--moss);
}

.page-news .lab-round__result {
  color: var(--ink) !important;
  font-size: var(--fs-micro) !important;
  letter-spacing: .04em;
}

.page-news .lab-round__result .mono {
  color: var(--winter);
}

.page-news .lab-total {
  margin: 1.5rem 0 0;
  background: var(--sand);
  padding: 1rem 1.15rem;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--ink);
}

.page-news .lab-total strong {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  letter-spacing: .02em;
  color: var(--winter);
}

/* ---------- 场景笔记 ---------- */
.page-news .field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
}

.page-news .field-note {
  border-top: 3px solid var(--tone, var(--spring));
  padding-top: .8rem;
}

.page-news .field-note h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.0625rem;
  line-height: 1.45;
  letter-spacing: .015em;
  margin: 0 0 .4rem;
}

.page-news .field-note p:last-child {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.72;
  color: var(--moss);
}

/* ---------- 季度专题 ---------- */
.page-news .feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  background: var(--sand);
}

.page-news .feature-cover {
  margin: 0;
}

.page-news .feature-body {
  padding: clamp(1.15rem, 3vw, 2.25rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .55rem;
}

.page-news .feature-body h3 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.6rem, 4.4vw, 2.7rem);
  line-height: 1.2;
  letter-spacing: .045em;
  margin: 0;
}

.page-news .feature-body p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.78;
  color: var(--ink);
  max-width: 48ch;
}

.page-news .feature-body .btn {
  margin-top: .5rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-news .field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem;
  }

  .page-news .lab-rounds {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news .brief--lead {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 1.75rem;
    align-items: start;
  }

  .page-news .brief-row {
    grid-template-columns: 4.5rem minmax(0, 1fr) 11.5rem;
    align-items: baseline;
    gap: .3rem 1rem;
  }

  .page-news .brief-row__meta {
    flex-direction: column;
    align-items: flex-end;
    gap: .2rem;
  }

  .page-news .lab-rounds {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 860px) {
  .page-news .intro-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-news .intro-status {
    margin-top: .5rem;
  }

  .page-news .stream {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-news:has(#nf-note:checked) .stream,
  .page-news:has(#nf-lab:checked) .stream,
  .page-news:has(#nf-field:checked) .stream,
  .page-news:has(#nf-feature:checked) .stream {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-news .batch-rail {
    position: sticky;
    top: 1.5rem;
    align-self: start;
  }

  .page-news .rail-list {
    display: block;
  }

  .page-news .rail-item + .rail-item {
    margin-top: .15rem;
  }

  .page-news .rail-item a {
    display: grid;
    grid-template-columns: 1.9rem minmax(0, 1fr);
    gap: .1rem .5rem;
    padding: .5rem .3rem .5rem .65rem;
    border: 0;
    border-left: 3px solid transparent;
  }

  .page-news .rail-item a:hover {
    border-left-color: var(--line);
  }

  .page-news .rail-item.is-current a {
    border-left-color: var(--autumn);
  }

  .page-news .rail-idx {
    grid-row: 1 / span 2;
    padding-top: .1rem;
  }

  .page-news .rail-text {
    display: block;
    grid-column: 2;
  }

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

@media (min-width: 1080px) {
  .page-news .field-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>