.page-news {
  --news-line: var(--stone-300);
  --news-gap: clamp(1.25rem, 3.5vw, 2rem);
  background: var(--paper);
  color: var(--ink);
  padding-block: clamp(1rem, 3.5vw, 2rem) clamp(3rem, 9vw, 6rem);
}

.page-news .crumbs {
  margin-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.5rem);
  padding-top: clamp(1.25rem, 3vw, 2rem);
  border-top: 1px solid var(--news-line);
}

.page-news .news-hero__lead h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.9rem, 5.2vw, 3.4rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0.7rem 0 0;
}

.page-news .news-hero__intro {
  margin: clamp(0.875rem, 2vw, 1.25rem) 0 0;
  max-width: 44ch;
  font-size: clamp(0.975rem, 1.6vw, 1.075rem);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-news .news-toc {
  margin-top: clamp(1.5rem, 3.5vw, 2rem);
  border-top: 1px solid var(--news-line);
  padding-top: 0.5rem;
  display: grid;
}

.page-news .news-toc__row {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--news-line);
  text-decoration: none;
  color: var(--ink);
  transition: color 0.3s var(--ease), padding-left 0.3s var(--ease);
}

.page-news .news-toc__row:hover,
.page-news .news-toc__row:focus-visible {
  color: var(--green-700);
  padding-left: 0.35rem;
}

.page-news .news-toc__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--gold-500);
}

.page-news .news-toc__label {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
}

.page-news .news-toc__arrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--mist-200);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .news-toc__row:hover .news-toc__arrow {
  color: var(--amber-400);
  transform: translateX(3px);
}

/* ---------- V4 信息条 ---------- */
.page-news .v4bar {
  position: relative;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: 1px solid rgba(198, 161, 91, 0.34);
  border-radius: 4px;
  background: linear-gradient(158deg, var(--green-900) 0%, var(--teal-800) 58%, var(--indigo-800) 100%);
  color: var(--paper);
  box-shadow: var(--shadow-1);
}

.page-news .v4bar__figure {
  margin: 0 0 clamp(1rem, 2.5vw, 1.35rem);
  border-radius: 2px;
  overflow: hidden;
  border: 1px solid rgba(199, 211, 206, 0.18);
}

.page-news .v4bar__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-news .v4bar__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--gold-500);
}

.page-news .v4bar__version {
  margin: 0.4rem 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(3rem, 1.2rem + 7vw, 4.4rem);
  line-height: 0.88;
  letter-spacing: -0.03em;
  color: var(--amber-400);
}

.page-news .v4bar__meta {
  margin: clamp(1rem, 2.5vw, 1.35rem) 0 0;
  display: grid;
  gap: 0.55rem;
}

.page-news .v4bar__meta > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid rgba(199, 211, 206, 0.2);
}

.page-news .v4bar__meta dt {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--mist-200);
  min-width: 0;
  overflow-wrap: anywhere;
}

.page-news .v4bar__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  text-align: right;
  color: var(--paper);
}

.page-news .v4bar__actions {
  margin-top: clamp(1rem, 2.5vw, 1.35rem);
  display: flex;
}

.page-news .v4bar__actions .btn {
  width: 100%;
  text-align: center;
}

/* ---------- 章节通用 ---------- */
.page-news .sec {
  margin-top: clamp(3rem, 8vw, 5.5rem);
  scroll-margin-top: 88px;
}

.page-news .sec__head {
  display: grid;
  gap: 0.75rem;
  padding-top: clamp(1rem, 2.5vw, 1.5rem);
  padding-bottom: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--news-line);
}

.page-news .sec__head .big-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 1rem + 5vw, 3.4rem);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.02em;
  color: var(--gold-500);
}

.page-news .sec__head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.35rem, 1rem + 2vw, 2rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
}

.page-news .sec__intro {
  margin: 0.6rem 0 0;
  max-width: 58ch;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 时间轴 ---------- */
.page-news .timeline {
  position: relative;
  overflow: hidden;
}

.page-news .timeline__bg {
  position: absolute;
  top: 0;
  right: 0;
  width: min(260px, 52%);
  max-width: 100%;
  height: auto;
  opacity: 0.13;
  filter: grayscale(1);
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 82%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 82%);
}

.page-news .tl {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.25rem, 3vw, 1.75rem);
}

.page-news .tl::before {
  content: "";
  position: absolute;
  top: 0.6rem;
  bottom: 0.6rem;
  left: 5px;
  width: 1px;
  background: linear-gradient(to bottom, var(--gold-500), var(--mist-200));
}

.page-news .tl__item {
  position: relative;
  padding-left: 1.75rem;
}

.page-news .tl__dot {
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold-500);
  box-shadow: 0 0 0 4px var(--paper);
}

.page-news .tl__item--now .tl__dot {
  background: var(--amber-400);
  box-shadow: 0 0 0 4px var(--paper), 0 0 0 6px rgba(227, 168, 59, 0.22);
}

.page-news .tl__when {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--green-700);
}

.page-news .tl__title {
  margin: 0.3rem 0 0.45rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.1rem, 1rem + 1vw, 1.35rem);
  line-height: 1.35;
  color: var(--ink);
}

.page-news .tl__text {
  margin: 0;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 分类切换 ---------- */
.page-news .feed__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: clamp(1.25rem, 3vw, 1.75rem);
}

.page-news .feed__tab {
  display: inline-block;
  padding: 0.45rem 0.95rem;
  border: 1px solid var(--news-line);
  border-radius: 999px;
  background: var(--white);
  color: var(--green-700);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-news .feed__tab:hover,
.page-news .feed__tab:focus-visible {
  transform: translateY(-2px);
  border-color: var(--gold-500);
}

.page-news .feed__tab--all {
  background: var(--green-700);
  border-color: var(--green-700);
  color: var(--paper);
}

/* ---------- 更新条目 ---------- */
.page-news .feed__group {
  margin-bottom: clamp(2rem, 5vw, 3rem);
  scroll-margin-top: 88px;
}

.page-news .feed__group:target {
  outline: 1px solid rgba(198, 161, 91, 0.75);
  outline-offset: 14px;
}

.page-news .feed__group-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 0.5rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--green-900);
}

.page-news .feed__count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

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

.page-news .feed__item {
  display: grid;
  gap: 0.6rem;
  padding: clamp(1rem, 2.5vw, 1.35rem) 0;
  border-top: 1px solid var(--news-line);
}

.page-news .feed__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.page-news .feed__when {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.page-news .feed__body {
  display: grid;
  gap: 0.45rem;
  justify-items: start;
}

.page-news .feed__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.05rem, 0.95rem + 0.7vw, 1.25rem);
  line-height: 1.42;
  color: var(--ink);
}

.page-news .feed__text {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .feed__more {
  justify-self: start;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--green-700);
  text-decoration: none;
  padding-bottom: 1px;
  border-bottom: 1px solid var(--gold-500);
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-news .feed__more:hover,
.page-news .feed__more:focus-visible {
  color: var(--amber-400);
  border-color: var(--amber-400);
}

/* ---------- 专题卡 ---------- */
.page-news .feature {
  display: grid;
  margin: 0 0 clamp(1rem, 2.5vw, 1.35rem);
  border: 1px solid var(--news-line);
  border-radius: 4px;
  background: var(--white);
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-news .feature:hover {
  transform: translateY(-2px);
  border-color: var(--gold-500);
  box-shadow: var(--shadow-1);
}

.page-news .feature__media {
  margin: 0;
}

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

.page-news .feature__body {
  display: grid;
  gap: 0.5rem;
  justify-items: start;
  padding: clamp(1.1rem, 3vw, 1.5rem);
}

/* ---------- 回访路径 ---------- */
.page-news .impact {
  margin-top: clamp(3rem, 8vw, 5.5rem);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border: 1px solid rgba(198, 161, 91, 0.3);
  border-radius: 4px;
  background: linear-gradient(150deg, var(--green-900) 0%, var(--teal-800) 100%);
  color: var(--paper);
  scroll-margin-top: 88px;
}

.page-news .impact__head {
  display: grid;
  gap: 0.75rem;
  padding-bottom: clamp(1.25rem, 3vw, 1.75rem);
  border-bottom: 1px solid rgba(199, 211, 206, 0.22);
}

.page-news .impact__head .big-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 1rem + 4vw, 3rem);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.02em;
  color: var(--gold-500);
}

.page-news .impact__head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.35rem, 1rem + 2vw, 1.95rem);
  line-height: 1.3;
  color: var(--paper);
}

.page-news .impact__intro {
  margin: 0.55rem 0 0;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--mist-200);
}

.page-news .steps {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-news .step {
  padding-top: 0.85rem;
  border-top: 2px solid var(--gold-500);
}

.page-news .step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--amber-400);
}

.page-news .step__title {
  margin: 0.35rem 0 0.4rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--paper);
}

.page-news .step__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist-200);
}

.page-news .step__flag {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid rgba(198, 161, 91, 0.55);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

/* ---------- 反馈入口 ---------- */
.page-news .support {
  display: grid;
  gap: clamp(0.875rem, 2.5vw, 1.25rem);
}

.page-news .support__card {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  padding: clamp(1.25rem, 3.5vw, 1.85rem);
  border: 1px solid var(--news-line);
  border-radius: 4px;
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-news .support__card:hover,
.page-news .support__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--gold-500);
  box-shadow: var(--shadow-1);
}

.page-news .support__kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--gold-500);
}

.page-news .support__card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.1rem, 1rem + 0.8vw, 1.3rem);
  line-height: 1.35;
}

.page-news .support__card p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-news .support__cta {
  margin-top: 0.35rem;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--green-700);
}

.page-news .support__card--dark {
  background: var(--green-900);
  border-color: rgba(198, 161, 91, 0.36);
  color: var(--paper);
}

.page-news .support__card--dark p {
  color: var(--mist-200);
}

.page-news .support__card--dark .support__cta {
  color: var(--amber-400);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-news .feature {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (min-width: 860px) {
  .page-news .sec__head {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(1rem, 2.5vw, 1.75rem);
    row-gap: 0;
  }

  .page-news .sec__head .big-num {
    padding-top: 0.25rem;
  }

  .page-news .impact__head {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(1rem, 2.5vw, 1.75rem);
    row-gap: 0;
  }
}

@media (min-width: 900px) {
  .page-news .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-news .feature {
    grid-template-columns: 280px minmax(0, 1fr);
    align-items: stretch;
  }

  .page-news .feature__media img {
    height: 100%;
    object-fit: cover;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-news .feed__item {
    grid-template-columns: 170px minmax(0, 1fr);
    column-gap: clamp(1.25rem, 3vw, 2rem);
    align-items: start;
  }

  .page-news .feed__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.45rem;
  }
}

@media (min-width: 1024px) {
  .page-news .v4bar {
    position: sticky;
    top: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-toc__row,
  .page-news .news-toc__arrow,
  .page-news .feed__tab,
  .page-news .feature,
  .page-news .support__card {
    transition: none;
  }

  .page-news .news-toc__row:hover,
  .page-news .feed__tab:hover,
  .page-news .feature:hover,
  .page-news .support__card:hover {
    transform: none;
  }

  .page-news .news-toc__row:hover .news-toc__arrow {
    transform: none;
  }
}
<<<END>>>