.page-news {
  --news-axis: 72px;
  --news-line: rgba(216, 162, 74, .55);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-news .news-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 顶部上下文 ---------- */
.page-news .news-hero {
  padding-block: clamp(24px, 4vw, 50px) clamp(16px, 2vw, 22px);
  background:
    radial-gradient(120% 100% at 88% -20%, rgba(91, 74, 122, .16), transparent 62%),
    linear-gradient(180deg, var(--paper), var(--sand-wash));
}

.page-news .news-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .09em;
  color: var(--teal-600);
}

.page-news .news-kicker-dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--cinnabar);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-news .news-hero h1 {
  margin: 14px 0 0;
  max-width: 22ch;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(32px, 5.6vw, 64px);
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--teal-800);
}

.page-news .news-lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  letter-spacing: .01em;
  color: #2B403C;
}

/* ---------- 窄横幅 ---------- */
.page-news .news-banner {
  position: relative;
  margin: 0 0 clamp(24px, 4vw, 44px);
  background: var(--teal-900);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(150px, 26vw, 270px);
  object-fit: cover;
  filter: saturate(.92) brightness(.95);
}

.page-news .news-banner figcaption {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: calc(100% - 48px);
  padding: 9px 16px;
  background: rgba(7, 28, 26, .84);
  color: var(--sand-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.5;
  letter-spacing: .05em;
}

/* ---------- 分区骨架 ---------- */
.page-news .news-section {
  padding-block: clamp(30px, 5vw, 62px);
}

.page-news .news-section + .news-section {
  border-top: 1px solid var(--hair);
}

.page-news .news-sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 24px;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-news h2 {
  position: relative;
  margin: 0;
  padding-left: 20px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--teal-800);
}

.page-news h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: .2em;
  bottom: .2em;
  width: 6px;
  background: var(--sand);
  clip-path: polygon(0 0, 100% 10%, 100% 100%, 0 90%);
}

.page-news .news-sec-note {
  margin: 0;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.68;
  color: var(--stone);
}

/* ---------- 条目流 ---------- */
.page-news .news-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 18px 16px 18px 0;
  background: var(--paper);
  transition: background var(--dur) var(--ease);
}

.page-news .news-item:nth-child(even) {
  background: var(--sand-wash);
}

.page-news .news-num {
  position: relative;
  z-index: 3;
  justify-self: start;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.3;
  letter-spacing: .05em;
  color: var(--teal-900);
  background: var(--sand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-news .news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0 0 8px;
}

.page-news .news-type {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--teal-600);
}

.page-news .news-title {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(16.5px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.42;
  letter-spacing: .005em;
}

.page-news .news-title a {
  color: var(--teal-900);
  text-decoration: none;
  background-image: linear-gradient(var(--sand), var(--sand));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 2px;
  transition: background-size var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .news-title a:hover,
.page-news .news-title a:focus-visible {
  color: var(--teal-600);
  background-size: 100% 2px;
}

.page-news .news-sum {
  margin: 8px 0 0;
  max-width: 64ch;
  font-size: 14.8px;
  line-height: 1.72;
  color: #344946;
}

.page-news .news-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--stone);
}

.page-news .news-scope {
  color: var(--teal-600);
}

/* ---------- 专题分组 ---------- */
.page-news .news-topic-head {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-news .news-topics-figure {
  margin: 0;
  overflow: hidden;
  background: var(--teal-800);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-news .news-topics-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(130px, 18vw, 180px);
  object-fit: cover;
}

.page-news .news-topic {
  border-top: 1px solid rgba(91, 74, 122, .22);
}

.page-news .news-topic-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  list-style: none;
  cursor: pointer;
  background: var(--dusk);
  color: var(--paper);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 23px);
  line-height: 1.3;
  letter-spacing: -.01em;
}

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

.page-news .news-topic-summary::marker {
  content: "";
}

.page-news .news-topic-summary::after {
  content: "▾";
  margin-left: 12px;
  font-size: 12px;
  color: var(--sand-soft);
  transition: transform var(--dur) var(--ease);
}

.page-news .news-topic[open] .news-topic-summary::after {
  transform: rotate(180deg);
}

.page-news .news-topic-summary:focus-visible {
  outline: 2px solid var(--sand);
  outline-offset: 2px;
}

.page-news .news-topic-code {
  flex: none;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  color: var(--teal-900);
  background: var(--sand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
}

.page-news .news-topic-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .08em;
  color: rgba(250, 247, 240, .7);
}

.page-news .news-topic-body {
  padding: 4px 0 16px;
  background: var(--paper);
}

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

.page-news .news-topic-list li {
  padding: 13px 16px;
  border-bottom: 1px solid var(--hair);
}

.page-news .news-topic-list li:last-child {
  border-bottom: 0;
}

.page-news .news-topic-link {
  display: inline-block;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--teal-800);
  text-decoration: none;
}

.page-news .news-topic-link:hover,
.page-news .news-topic-link:focus-visible {
  color: var(--cinnabar);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-news .news-topic-desc {
  margin: 6px 0 0;
  max-width: 58ch;
  font-size: 14.2px;
  line-height: 1.68;
  color: #3E524F;
}

/* ---------- 版本演进 ---------- */
.page-news .news-version-grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-news .news-version-figure {
  margin: 0;
  overflow: hidden;
  background: var(--teal-900);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.page-news .news-version-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .news-version-main .news-sec-note {
  margin-top: 12px;
  max-width: 52ch;
}

.page-news .news-tabs {
  margin-top: 20px;
}

.page-news .news-tabs .tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news .news-tabs .tab {
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--teal-700);
  background: transparent;
  border: 1px solid rgba(14, 59, 54, .26);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-news .news-tabs .tab[aria-selected="true"] {
  color: var(--sand-soft);
  background: var(--teal-800);
  border-color: var(--teal-800);
}

.page-news .news-tabs .tab:focus-visible {
  outline: 2px solid var(--sand);
  outline-offset: 2px;
}

.page-news .news-tabs .tabpanel {
  margin-top: 18px;
}

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

.page-news .news-nodes {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .news-node {
  position: relative;
  padding: 12px 16px 13px 18px;
  background: var(--sand-wash);
}

.page-news .news-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--sand);
}

.page-news .news-node-tag {
  display: inline-block;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .07em;
  color: var(--teal-800);
  border: 1px solid var(--sand);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
}

.page-news .news-node p {
  margin: 8px 0 0;
  font-size: 14.2px;
  line-height: 1.68;
  color: #344946;
}

/* ---------- 资料库 ---------- */
.page-news .news-lib {
  display: grid;
  gap: 22px;
}

.page-news .news-lib-text .news-sec-note {
  margin-top: 12px;
  max-width: 54ch;
}

.page-news .news-lib-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-lib-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hair);
}

.page-news .news-lib-list b {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--teal-600);
}

.page-news .news-lib-list span {
  font-size: 14.2px;
  line-height: 1.68;
  color: #344946;
}

.page-news .news-lib-figure {
  margin: 0;
  overflow: hidden;
  background: var(--teal-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-news .news-lib-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- 回看方式 ---------- */
.page-news .news-how-grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-news .news-how {
  padding: 18px 18px 20px;
  background: var(--paper);
  border-top: 3px solid var(--teal-800);
}

.page-news .news-how:nth-child(2) {
  border-top-color: var(--sand);
}

.page-news .news-how:nth-child(3) {
  border-top-color: var(--dusk);
}

.page-news .news-how h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 18.5px;
  font-weight: 700;
  line-height: 1.36;
  color: var(--teal-800);
}

.page-news .news-how p {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.7;
  color: #3E524F;
}

.page-news .news-how a,
.page-news .news-coda a {
  color: var(--teal-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-how a:hover,
.page-news .news-coda a:hover {
  color: var(--cinnabar);
}

.page-news .news-coda {
  margin: 22px 0 0;
  max-width: 70ch;
  font-size: 14.2px;
  line-height: 1.78;
  color: var(--stone);
}

/* ---------- 回到最新 ---------- */
.page-news .news-jump {
  position: fixed;
  right: clamp(12px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  padding: 10px 15px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--sand-soft);
  text-decoration: none;
  background: var(--teal-800);
  box-shadow: 0 10px 24px rgba(7, 28, 26, .26);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background var(--dur) var(--ease);
}

.page-news .news-jump:hover,
.page-news .news-jump:focus-visible {
  background: var(--teal-700);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-news .news-item {
    grid-template-columns: var(--news-axis) 1fr;
    gap: 0 24px;
    padding: 22px 22px 22px 0;
    align-items: start;
  }

  .page-news .news-num {
    justify-self: center;
    width: 44px;
    margin-top: 2px;
    padding: 6px 0;
    text-align: center;
  }

  .page-news .news-list::before {
    content: "";
    position: absolute;
    z-index: 2;
    top: 10px;
    bottom: 10px;
    left: calc(var(--news-axis) / 2 - 1px);
    width: 2px;
    background: linear-gradient(180deg, var(--sand), rgba(216, 162, 74, .12));
  }

  .page-news .news-how-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-topic-head {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
  }

  .page-news .news-version-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-news .news-lib {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-title a,
  .page-news .news-topic-summary::after,
  .page-news .news-tabs .tab,
  .page-news .news-jump {
    transition: none;
  }
}
<<<END>>>