.page-news {
  --pn-pad: clamp(1.1rem, 2.4vw, 1.65rem);
  --pn-gap: clamp(1rem, 2.4vw, 1.5rem);
  color: var(--paper);
  background:
    radial-gradient(80% 40% at 15% 0%, rgba(99, 216, 232, 0.08), transparent 65%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 45%, var(--ink-900) 100%);
}

.page-news .container {
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.page-news .breadcrumb {
  padding-top: clamp(0.9rem, 2vw, 1.4rem);
}

/* ---------- 首屏 ---------- */
.page-news .pn-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 3.6vw, 2.4rem) 0 clamp(2rem, 4.5vw, 3.2rem);
  border-bottom: 1px solid var(--line-faint);
}

.page-news .pn-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: min(680px, 90vw);
  height: 460px;
  background:
    radial-gradient(58% 58% at 55% 45%, rgba(99, 216, 232, 0.16), transparent 70%),
    radial-gradient(48% 48% at 82% 78%, rgba(182, 243, 90, 0.11), transparent 70%);
  pointer-events: none;
}

.page-news .pn-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.25rem);
}

.page-news .pn-hero__title {
  margin: 0.4rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  font-size: clamp(2.1rem, 6vw, 3.9rem);
  color: var(--paper);
}

.page-news .pn-hero__intro {
  margin: 1rem 0 0;
  max-width: 46ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--muted);
}

.page-news .pn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.4rem;
}

.page-news .pn-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.5rem;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--line-soft);
}

.page-news .pn-jump__link {
  display: inline-block;
  padding: 0.42rem 0.72rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-news .pn-jump__link:hover,
.page-news .pn-jump__link:focus-visible {
  color: var(--paper);
  border-color: var(--ice);
}

.page-news .pn-jump__link.is-active {
  color: var(--ink-900);
  background: var(--signal);
  border-color: var(--signal);
}

.page-news .pn-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-faint);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--lift);
}

.page-news .pn-status__cell {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.95rem 1rem;
  background: var(--ink-800);
}

.page-news .pn-status__num {
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  color: var(--signal);
}

.page-news .pn-status__key {
  font-size: var(--fs-small);
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-news .pn-section {
  padding: clamp(2.4rem, 5.5vw, 4rem) 0;
  border-bottom: 1px solid var(--line-faint);
}

.page-news .pn-section__head {
  display: grid;
  gap: 0.85rem;
  margin-bottom: clamp(1.4rem, 3vw, 2rem);
}

.page-news .pn-section__head .section-title {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  font-size: var(--fs-h1);
  color: var(--paper);
}

.page-news .pn-section__head .section-note {
  margin: 0;
  max-width: 52ch;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 本周摘要 ---------- */
.page-news .pn-brief {
  display: grid;
  gap: 1px;
  background: var(--line-faint);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-news .pn-brief__item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: var(--pn-pad);
  background: var(--ink-800);
}

.page-news .pn-brief__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--line);
}

.page-news .pn-brief__item--switch::before {
  background: var(--amber);
}

.page-news .pn-brief__item--devices::before {
  background: var(--ice);
}

.page-news .pn-brief__item--help::before {
  background: var(--signal);
}

.page-news .pn-brief__meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.page-news .pn-issue {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-news .pn-brief__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .pn-brief__text {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--muted);
}

.page-news .pn-brief__link {
  margin-top: auto;
  padding-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  align-self: flex-start;
}

.page-news .pn-brief__link:hover,
.page-news .pn-brief__link:focus-visible {
  border-bottom-color: var(--signal);
}

/* ---------- 图片 ---------- */
.page-news .pn-figure {
  margin: 0 0 clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(18, 59, 88, 0.7), rgba(7, 24, 38, 0.9));
  overflow: hidden;
}

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

.page-news .pn-figure__cap {
  padding: 0.6rem 0.9rem;
  border-top: 1px solid var(--line-faint);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-news .pn-figure--square {
  margin-bottom: 0;
}

/* ---------- 时间轴 ---------- */
.page-news .pn-timeline {
  display: grid;
  gap: clamp(1.2rem, 3vw, 1.75rem);
}

.page-news .pn-rail {
  position: relative;
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  margin: 0;
  padding: 0 0 0.6rem;
  list-style: none;
  border-bottom: 1px solid var(--line-faint);
  scrollbar-width: thin;
}

.page-news .pn-rail__item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex: 0 0 auto;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--line-faint);
  border-radius: var(--radius);
  background: rgba(12, 38, 59, 0.7);
}

.page-news .pn-rail__item.is-current {
  border-color: var(--amber);
  background: rgba(255, 180, 84, 0.1);
}

.page-news .pn-rail__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line);
}

.page-news .pn-rail__item.is-current .pn-rail__dot {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 180, 84, 0.2);
}

.page-news .pn-rail__week {
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--paper);
}

.page-news .pn-rail__issue {
  font-size: 0.68rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.page-news .pn-log {
  display: grid;
  gap: 0.85rem;
}

.page-news .pn-log__item {
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 38, 59, 0.72);
  box-shadow: var(--lift);
  transition: border-color 180ms ease, background-color 180ms ease;
}

.page-news .pn-log__item[open] {
  border-left-color: var(--amber);
  background: rgba(18, 59, 88, 0.82);
}

.page-news .pn-log__summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0.95rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-news .pn-log__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--ice);
}

.page-news .pn-log__item[open] .pn-log__summary::after {
  content: "–";
  color: var(--amber);
}

.page-news .pn-log__summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-news .pn-log__title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-news .pn-log__body {
  padding: 0 1rem 1.15rem;
  border-top: 1px dashed var(--line-faint);
  margin-top: 0.1rem;
}

.page-news .pn-log__body p {
  margin: 0.85rem 0 0;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--muted);
}

.page-news .pn-log__list {
  margin: 0.75rem 0 0;
  padding: 0 0 0 1.1rem;
  display: grid;
  gap: 0.4rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--muted);
}

.page-news .pn-log__list li::marker {
  color: var(--signal);
}

.page-news .pn-log__link {
  display: inline-block;
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 2px;
}

.page-news .pn-log__link:hover,
.page-news .pn-log__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--ice);
}

/* ---------- 版本切换 ---------- */
.page-news .pn-split {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
}

.page-news .pn-steps {
  display: grid;
  gap: 1rem;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
}

.page-news .pn-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--line-faint);
  border-radius: var(--radius);
  background: rgba(12, 38, 59, 0.6);
}

.page-news .pn-steps__num {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--amber);
}

.page-news .pn-steps__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-steps__item p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--muted);
}

.page-news .pn-figure--stacked {
  margin-bottom: 0;
}

.page-news .pn-figure--wide {
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
}

/* ---------- 双端适配 ---------- */
.page-news .pn-duo {
  display: grid;
  gap: var(--pn-gap);
}

.page-news .pn-device {
  padding: var(--pn-pad);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background:
    linear-gradient(155deg, rgba(99, 216, 232, 0.1), transparent 62%),
    var(--ink-800);
}

.page-news .pn-device--alt {
  background:
    linear-gradient(155deg, rgba(182, 243, 90, 0.09), transparent 62%),
    var(--ink-800);
}

.page-news .pn-device__title {
  margin: 0.7rem 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-device p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--muted);
}

.page-news .pn-device__list {
  margin: 0.85rem 0 0;
  padding: 0 0 0 1.1rem;
  display: grid;
  gap: 0.4rem;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--muted);
}

.page-news .pn-device__list li::marker {
  color: var(--ice);
}

/* ---------- 帮助中心 ---------- */
.page-news .pn-help {
  display: grid;
  gap: var(--pn-gap);
}

.page-news .pn-help__main {
  padding: var(--pn-pad);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(12, 38, 59, 0.68);
}

.page-news .pn-help__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-news .pn-help__main p {
  margin: 0 0 0.8rem;
  font-size: var(--fs-small);
  line-height: 1.85;
  color: var(--muted);
}

.page-news .pn-help__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 1rem 0 1.25rem;
}

.page-news .pn-help__side {
  padding: var(--pn-pad);
  border: 1px solid var(--line-faint);
  border-radius: var(--radius);
  background: rgba(18, 59, 88, 0.4);
}

.page-news .pn-help__side-title {
  margin: 0 0 0.8rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-news .pn-help__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-news .pn-help__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.6rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed var(--line-faint);
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--muted);
}

.page-news .pn-help__list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-news .pn-help__idx {
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--ice);
}

/* ---------- 索引 ---------- */
.page-news .pn-index {
  display: grid;
  gap: var(--pn-gap);
}

.page-news .pn-cat {
  display: grid;
  gap: 1px;
  background: var(--line-faint);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-news .pn-cat__item {
  padding: var(--pn-pad);
  background: var(--ink-800);
}

.page-news .pn-cat__title {
  margin: 0.65rem 0 0.45rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-news .pn-cat__item p {
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 下一步 ---------- */
.page-news .pn-next {
  padding: clamp(2.2rem, 5vw, 3.6rem) 0 clamp(2.6rem, 5vw, 4rem);
}

.page-news .pn-next__grid {
  display: grid;
  gap: 1px;
  background: var(--line-faint);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  margin-bottom: clamp(1.2rem, 3vw, 1.75rem);
}

.page-news .pn-next__card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: var(--pn-pad);
  background: var(--ink-800);
  text-decoration: none;
  transition: background-color 180ms ease;
}

.page-news .pn-next__card:hover,
.page-news .pn-next__card:focus-visible {
  background: var(--ink-700);
}

.page-news .pn-next__key {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.page-news .pn-next__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper);
}

.page-news .pn-next__text {
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--muted);
}

.page-news .pn-contact {
  display: grid;
  gap: 0.5rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--line-soft);
}

.page-news .pn-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  margin: 0;
  font-size: var(--fs-small);
  color: var(--muted);
}

.page-news .pn-contact__key {
  min-width: 4.5em;
  color: var(--paper);
}

.page-news .pn-contact .mono {
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--ice);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .pn-brief {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-news .pn-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-news .pn-section__head {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-news .pn-section__head .section-note {
    padding-bottom: 0.35rem;
  }

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

  .page-news .pn-timeline {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(1.75rem, 3.5vw, 2.75rem);
  }

  .page-news .pn-rail {
    position: sticky;
    top: 7rem;
    align-self: start;
    flex-direction: column;
    align-items: stretch;
    gap: 0.55rem;
    overflow: visible;
    padding: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line-soft);
    padding-left: 1rem;
  }

  .page-news .pn-rail__item {
    justify-content: space-between;
    padding: 0.42rem 0.55rem;
  }

  .page-news .pn-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(1.75rem, 3.5vw, 2.75rem);
  }

  .page-news .pn-figure--stacked {
    margin-top: 0;
  }

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

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

  .page-news .pn-index {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-news .pn-figure--wide img {
    max-height: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .pn-jump__link,
  .page-news .pn-log__item,
  .page-news .pn-next__card {
    transition: none;
  }
}
<<<END>>>