.page-news {
  --news-rail: 236px;
  position: relative;
  isolation: isolate;
  background: var(--ink);
  color: var(--silver);
}

.page-news::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(199, 211, 232, .055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(199, 211, 232, .055) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, .35) 58%, transparent 84%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, .35) 58%, transparent 84%);
}

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

.page-news figure {
  margin: 0;
}

.page-news .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.5vw, 36px) 0 clamp(30px, 5vw, 60px);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  top: -46%;
  right: -14%;
  width: 76vw;
  max-width: 760px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(109, 91, 208, .3), rgba(109, 91, 208, 0) 64%);
  pointer-events: none;
  z-index: 0;
}

.page-news .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-news .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
}

.page-news .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(199, 211, 232, .38);
}

.page-news .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

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

.page-news .breadcrumb__current {
  color: var(--silver);
}

.page-news .news-hero__split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-news .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--amber);
}

.page-news .news-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 5.4vw, 60px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-news .news-hero h1 .hl {
  color: var(--amber);
  display: inline-block;
}

.page-news .news-hero__intro p {
  margin: 0;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--silver);
}

.page-news .news-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: clamp(18px, 2.5vw, 26px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-news .news-hero__facts li {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-news .news-hero__facts .mono {
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--white);
}

.page-news .news-hero__facts em {
  font-style: normal;
  font-size: 12px;
  color: var(--mist);
}

.page-news .news-hero__figure {
  margin-top: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(18, 38, 77, .42);
}

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1500 / 800;
  object-fit: cover;
}

.page-news .news-hero__cap {
  display: block;
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist);
}

/* ---------- 主体骨架 ---------- */
.page-news .news-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(48px, 7vw, 96px);
}

.page-news .news-body__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-news .news-feed {
  display: grid;
  gap: clamp(40px, 6vw, 76px);
  min-width: 0;
}

/* ---------- 左侧索引 ---------- */
.page-news .news-rail {
  display: grid;
  gap: 20px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  min-width: 0;
}

.page-news .rail-block {
  display: grid;
  gap: 10px;
  min-width: 0;
}

.page-news .rail-block__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-news .rail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-news .rail-list > li {
  flex: 0 0 auto;
}

.page-news .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--silver);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .rail-link .mono {
  font-size: 11px;
  color: var(--mist);
  letter-spacing: .1em;
}

.page-news .rail-link:hover,
.page-news .rail-link:focus-visible {
  color: var(--white);
  border-color: rgba(242, 181, 68, .55);
  background: var(--amber-soft);
}

.page-news .rail-toc a[data-current],
.page-news .rail-toc li[data-current] .rail-link {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

.page-news .rail-toc a[data-current] .mono,
.page-news .rail-toc li[data-current] .rail-link .mono {
  color: rgba(7, 11, 26, .62);
}

.page-news .rail-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-news .news-section__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .news-section__no {
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-news .news-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.2vw, 34px);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-news .news-section__lead {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 观察条目 ---------- */
.page-news .obs-group {
  scroll-margin-top: 96px;
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-news .obs-group:last-child {
  margin-bottom: 0;
}

.page-news .obs-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-news .obs-group__code {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--violet);
}

.page-news .obs-group__count {
  font-size: 11px;
  color: var(--mist);
  white-space: nowrap;
}

.page-news .obs-group__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-news .obs-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(18, 38, 77, .66), rgba(7, 11, 26, .86));
  overflow: hidden;
  min-width: 0;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .obs-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--amber);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 240ms var(--ease);
}

.page-news .obs-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-news .obs-card:hover::before {
  transform: scaleY(1);
}

.page-news .obs-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .obs-card__time {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-news .obs-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
}

.page-news .obs-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-news .obs-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-news .obs-card__code {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
}

.page-news .obs-card__link {
  font-size: 13px;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-news .obs-card__link::after {
  content: " →";
}

.page-news .obs-card__link:hover,
.page-news .obs-card__link:focus-visible {
  border-bottom-color: var(--amber);
}

/* ---------- 三步路径 ---------- */
.page-news .path-steps {
  position: relative;
  display: grid;
  gap: 18px;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  list-style: none;
}

.page-news .path-step {
  position: relative;
  z-index: 1;
  padding: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--graphite);
  min-width: 0;
}

.page-news .path-step__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--amber);
  border-radius: 50%;
  background: var(--ink);
  font-size: 13px;
  color: var(--amber);
}

.page-news .path-step__title {
  margin: 14px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.5;
  color: var(--white);
}

.page-news .path-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-news .media-frame {
  width: 100%;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(18, 38, 77, .38);
}

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

.page-news .media-frame__caption {
  display: block;
  padding: 10px 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 更新日志 ---------- */
.page-news .log-board {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-news .log-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0 0 0 18px;
  border-left: 1px solid var(--line);
  list-style: none;
  min-width: 0;
}

.page-news .log-item {
  position: relative;
  padding: 0 0 22px;
}

.page-news .log-item:last-child {
  padding-bottom: 0;
}

.page-news .log-item::before {
  content: "";
  position: absolute;
  left: -22.5px;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--violet);
}

.page-news .log-item--now::before {
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(242, 181, 68, .16);
}

.page-news .log-item__time {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-news .log-item--now .log-item__time {
  color: var(--amber);
}

.page-news .log-item__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.55;
  color: var(--white);
}

.page-news .log-item__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 回看方法 ---------- */
.page-news .return-grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-news .return-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-news .return-item {
  position: relative;
  padding: 18px 20px 18px 56px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  min-width: 0;
}

.page-news .return-item__no {
  position: absolute;
  left: 18px;
  top: 20px;
  font-size: 13px;
  color: var(--amber);
  letter-spacing: .1em;
}

.page-news .return-item__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  line-height: 1.5;
  color: var(--white);
}

.page-news .return-item__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 收藏与续读 ---------- */
.page-news .save-band {
  padding: clamp(22px, 3.6vw, 42px);
  border-radius: var(--radius);
  color: var(--graphite);
}

.page-news .save-band__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.45;
  color: var(--ink);
}

.page-news .save-band__tips {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .save-band__tips li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(27, 36, 54, .84);
}

.page-news .save-band__tips li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 10px;
  border-radius: 1px;
  background: var(--violet);
}

.page-news .save-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-news .save-band .btn--ghost {
  color: var(--ink);
  border-color: rgba(27, 36, 54, .42);
}

.page-news .save-band .btn--ghost:hover,
.page-news .save-band .btn--ghost:focus-visible {
  border-color: var(--ink);
  background: rgba(27, 36, 54, .08);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-news .news-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-news .obs-group__cards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
  }

  .page-news .obs-card {
    grid-column: span 12;
    align-self: start;
  }

  .page-news .obs-card--wide {
    grid-column: span 7;
  }

  .page-news .obs-card--narrow {
    grid-column: span 5;
  }

  .page-news .obs-card--half {
    grid-column: span 6;
  }
}

@media (min-width: 820px) {
  .page-news .path-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-news .path-steps::before {
    content: "";
    position: absolute;
    z-index: 0;
    top: 34px;
    left: 6%;
    right: 6%;
    height: 1px;
    background-image: repeating-linear-gradient(90deg, rgba(199, 211, 232, .42) 0 7px, transparent 7px 15px);
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__split {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, .84fr);
    align-items: end;
    gap: clamp(24px, 4vw, 52px);
  }

  .page-news .log-board {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr);
    align-items: start;
  }

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

@media (min-width: 1000px) {
  .page-news .news-body__grid {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-news .news-rail {
    position: sticky;
    top: 92px;
  }

  .page-news .rail-list {
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
  }

  .page-news .rail-list > li {
    flex: 0 1 auto;
  }

  .page-news .rail-link {
    justify-content: flex-start;
    width: 100%;
    white-space: normal;
    border-radius: var(--radius-sm);
  }
}

@media (max-width: 999px) {
  .page-news .rail-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: none;
  }

  .page-news .rail-list::-webkit-scrollbar {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .obs-card,
  .page-news .obs-card::before,
  .page-news .rail-link,
  .page-news .obs-card__link,
  .page-news .breadcrumb__link {
    transition: none;
  }

  .page-news .obs-card:hover {
    transform: none;
  }
}
<<<END>>>