.page-news {
  --n-body: #B9C0D0;
  --n-faint: #6C7392;
  --n-hair: 1.5px;
  --n-gradient: linear-gradient(90deg, var(--violet) 0%, var(--cyan) 100%);
  position: relative;
  overflow-x: clip;
}

/* ---------- 频道头 ---------- */
.page-news .news-masthead {
  position: relative;
  padding: clamp(20px, 4vw, 52px) 0 clamp(20px, 3vw, 36px);
  isolation: isolate;
}

.page-news .news-masthead::before {
  content: "";
  position: absolute;
  inset: -240px -14% auto -14%;
  height: 560px;
  background:
    radial-gradient(52% 100% at 16% 100%, rgba(108, 59, 244, .26), transparent 68%),
    radial-gradient(38% 84% at 88% 92%, rgba(53, 230, 224, .13), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.page-news .news-title {
  margin: 14px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(32px, 7vw, 60px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -.03em;
  color: var(--white);
}

.page-news .news-title::after {
  content: "";
  display: block;
  width: clamp(68px, 15vw, 160px);
  height: 6px;
  margin-top: 20px;
  background: var(--n-gradient);
}

.page-news .masthead-lede {
  max-width: 64ch;
  margin: 22px 0 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--n-body);
}

.page-news .masthead-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: clamp(20px, 3.5vw, 34px) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--n-hair) solid var(--line);
}

.page-news .mm-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-faint);
}

.page-news .mm-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--n-faint);
}

.page-news .mm-val {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--white);
}

/* ---------- 频道定位 ---------- */
.page-news .news-scope {
  padding-top: clamp(28px, 4.5vw, 56px);
}

.page-news .scope-grid {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-news .scope-aside {
  border-top: var(--n-hair) solid var(--line);
  padding-top: 14px;
}

.page-news .scope-title {
  margin: 8px 0 0;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-news .scope-body {
  border-top: var(--n-hair) solid var(--line);
  padding-top: 14px;
}

.page-news .scope-body p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--n-body);
  max-width: 68ch;
}

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

.page-news .scope-body .serif-quote {
  margin: 24px 0;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--violet);
  font-family: var(--font-serif);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.85;
  color: var(--white);
  max-width: 40ch;
}

.page-news .scope-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, .45);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .scope-link:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 阶段条 ---------- */
.page-news .stage-band {
  position: relative;
  margin-top: clamp(22px, 3.5vw, 40px);
  padding: clamp(28px, 5vw, 56px) 0;
  border-top: var(--n-hair) solid var(--line);
  border-bottom: var(--n-hair) solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-news .stage-band-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  pointer-events: none;
}

.page-news .stage-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 7, 14, .92) 0%, rgba(5, 7, 14, .58) 45%, rgba(5, 7, 14, .92) 100%);
  pointer-events: none;
}

.page-news .stage-band > .container {
  position: relative;
  z-index: 1;
}

.page-news .stage-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-news .stage-node {
  position: relative;
  padding-top: 26px;
}

.page-news .stage-node::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--line);
}

.page-news .stage-node::after {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 12px;
  height: 12px;
  background: var(--ink);
  border: 2px solid var(--line);
}

.page-news .stage-node.is-current::before {
  background: var(--n-gradient);
}

.page-news .stage-node.is-current::after {
  background: var(--violet);
  border-color: var(--cyan);
}

.page-news .stage-link {
  display: flex;
  flex-direction: column;
  gap: 5px;
  text-decoration: none;
  color: inherit;
}

.page-news .stage-code {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--n-faint);
}

.page-news .stage-node.is-current .stage-code {
  color: var(--cyan);
}

.page-news .stage-name {
  font-size: 17px;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -.01em;
}

.page-news .stage-sub {
  font-size: 13px;
  color: var(--grey);
}

.page-news .stage-node.is-current .stage-sub {
  color: var(--violet-soft);
}

.page-news .stage-count {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--n-faint);
}

.page-news .stage-link:hover .stage-name {
  color: var(--cyan);
}

/* ---------- 条目区 ---------- */
.page-news .entry-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: clamp(18px, 3vw, 30px);
  padding: 14px 0;
  border-top: var(--n-hair) solid var(--line);
  border-bottom: var(--n-hair) solid var(--line);
}

.page-news .filter-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  padding: 7px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--grey);
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-news .filter-btn:hover {
  color: var(--white);
  border-color: var(--violet-soft);
}

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--violet);
  border-color: var(--violet);
  color: var(--white);
}

.page-news .filter-read {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-news .entry-group {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-news .group-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line);
}

.page-news .group-code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--violet-soft);
}

.page-news .group-title {
  margin: 0;
  font-size: clamp(17px, 2.1vw, 23px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-news .group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--n-faint);
}

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

.page-news .entry {
  padding: 20px 0;
  border-bottom: var(--n-hair) solid var(--line-soft);
}

.page-news .entry-no {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--n-faint);
  transition: color var(--dur) var(--ease);
}

.page-news .entry-title {
  margin: 0 0 10px;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-news .entry-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-news .cat-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: .1em;
  padding: 5px 9px;
  border: 1px solid currentColor;
  color: var(--cyan);
}

.page-news .cat-tag--store {
  color: var(--violet-soft);
}

.page-news .cat-tag--partner {
  color: var(--gold);
}

.page-news .cat-tag--scope {
  color: var(--grey);
}

.page-news .col-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: .1em;
  padding: 5px 10px;
  background: var(--ink-3);
  border-left: 2px solid var(--violet);
  color: var(--grey);
}

.page-news .entry-angle {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--grey);
}

.page-news .entry-when {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--n-faint);
}

/* ---------- 两条副线 ---------- */
.page-news .side-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .side-card {
  position: relative;
}

.page-news .side-card .media-frame {
  border: var(--n-hair) solid var(--line);
  box-shadow: var(--shadow);
}

.page-news .side-card-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-news .side-tag {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-news .side-title {
  margin: 10px 0 0;
  font-size: clamp(19px, 2.5vw, 27px);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-news .side-text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--n-body);
  max-width: 60ch;
}

.page-news .side-link {
  display: inline-block;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, .45);
  padding-bottom: 3px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .side-link:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 折叠与更正 ---------- */
.page-news .acc-item {
  position: relative;
}

.page-news .acc-index {
  font-family: var(--font-mono);
  letter-spacing: .1em;
  color: var(--violet-soft);
}

.page-news .acc-title {
  font-weight: 700;
}

.page-news .acc-hint {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--n-faint);
}

.page-news .acc-hint--fix {
  color: var(--magenta);
}

.page-news .acc-item--correction::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--magenta);
  opacity: .7;
}

.page-news .acc-item--correction .acc-index {
  color: var(--magenta);
}

.page-news .acc-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--n-body);
  max-width: 68ch;
}

.page-news .correction-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-news .correction {
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.page-news .correction-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
}

.page-news .correction-id {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--magenta);
}

.page-news .correction-topic {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-news .correction-diff {
  margin: 12px 0 0;
  display: grid;
  gap: 8px;
}

.page-news .diff-row {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-news .diff-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--n-faint);
  padding-top: 4px;
}

.page-news .diff-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--n-body);
}

.page-news .correction-foot {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.8;
  color: var(--grey);
}

/* ---------- 归档 ---------- */
.page-news .archive-media {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-news .archive-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-news .archive-col-title {
  margin: 0;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--white);
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line);
}

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

.page-news .archive-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: var(--n-hair) solid var(--line-soft);
}

.page-news .archive-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--violet-soft);
  padding-top: 3px;
}

.page-news .archive-name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-news .archive-desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--grey);
}

.page-news .archive-foot {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--grey);
}

.page-news .archive-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 44px);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 700px) {
  .page-news .entry {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr) 132px;
    gap: 0 26px;
    align-items: start;
    padding: 26px 16px;
    margin: 0 -16px;
    transition: background-color var(--dur) var(--ease);
  }

  .page-news .entry-no {
    margin: 4px 0 0;
  }

  .page-news .entry-when {
    margin: 4px 0 0;
    text-align: right;
  }

  .page-news .entry:hover,
  .page-news .entry:focus-within {
    background: rgba(11, 15, 28, .86);
  }

  .page-news .entry:hover .entry-no {
    color: var(--cyan);
  }

  .page-news .entry-angle {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px);
    transition: max-height 260ms var(--ease), opacity 200ms var(--ease), transform 260ms var(--ease);
  }

  .page-news .entry:hover .entry-angle,
  .page-news .entry:focus-within .entry-angle {
    max-height: 160px;
    opacity: 1;
    transform: translateY(0);
  }

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

  .page-news .mm-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px 24px 6px 0;
    border-bottom: none;
  }

  .page-news .mm-item + .mm-item {
    border-left: 1px solid var(--line-faint);
    padding-left: 24px;
  }
}

@media (min-width: 900px) {
  .page-news .scope-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-news .scope-aside {
    position: sticky;
    top: calc(var(--header-h, 0px) + 24px);
    align-self: start;
  }

  .page-news .stage-track {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
  }

  .page-news .stage-node {
    padding: 30px 24px 0 0;
  }

  .page-news .side-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
    gap: clamp(36px, 5vw, 72px);
  }

  .page-news .side-card--partners {
    margin-top: clamp(36px, 6vw, 88px);
  }

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

@media (min-width: 1180px) {
  .page-news .entry {
    grid-template-columns: 96px minmax(0, 1fr) 148px;
    gap: 0 34px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-news .entry-angle {
    max-height: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .page-news .scope-aside {
    position: static;
  }
}
<<<END>>>