/* ===== 品牌日志 · 页面专属样式（作用域 .page-news） ===== */

.page-news {
  --news-track: rgba(127, 212, 255, .30);
  --news-track-soft: rgba(127, 212, 255, .12);
  --news-card-bg: linear-gradient(180deg, rgba(14, 22, 38, .94), rgba(7, 11, 20, .74));
  background: var(--c-void);
}

/* ---------- 页头 ---------- */
.page-news .journal-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 5vw, 3.25rem) 0 clamp(2rem, 6vw, 3.75rem);
  border-bottom: 1px solid var(--c-line-soft);
}

.page-news .journal-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: .42;
}

.page-news .journal-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(7, 11, 20, .42) 0%, rgba(7, 11, 20, .84) 58%, var(--c-void) 100%),
    radial-gradient(115% 75% at 84% 8%, rgba(33, 230, 193, .16), transparent 62%);
}

.page-news .journal-hero-inner {
  position: relative;
  z-index: 1;
}

.page-news .journal-hero .breadcrumbs {
  margin-bottom: 1.1rem;
  font-size: .8rem;
  letter-spacing: .04em;
}

.page-news .journal-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 6.2vw, 3.7rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: .005em;
  color: var(--c-bright);
  margin: .5rem 0 .95rem;
  max-width: 22ch;
}

.page-news .journal-hero .lede {
  max-width: 60ch;
  margin: 0;
  font-size: clamp(1rem, 2.3vw, 1.1rem);
  line-height: 1.78;
  color: var(--c-text);
}

.page-news .hero-facts {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 1.15rem 0 0;
  border-top: 1px solid var(--c-line-soft);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .95rem 1rem;
}

.page-news .hero-fact {
  display: flex;
  flex-direction: column;
  gap: .16rem;
  min-width: 0;
}

.page-news .hero-fact b {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 3.6vw, 1.5rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--c-ice);
  letter-spacing: -.01em;
}

.page-news .hero-fact span {
  font-size: .78rem;
  line-height: 1.45;
  letter-spacing: .04em;
  color: var(--c-steel);
}

/* ---------- 通用章节 ---------- */
.page-news .journal-section {
  padding: clamp(2.4rem, 6vw, 4.25rem) 0 0;
}

.page-news .journal-section:last-of-type {
  padding-bottom: clamp(2.6rem, 6vw, 4.5rem);
}

.page-news .journal-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 1rem;
  row-gap: .3rem;
  align-items: baseline;
  max-width: 74ch;
}

.page-news .journal-head .section-index {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 5vw, 2.4rem);
  font-weight: 600;
  line-height: 1;
  color: var(--c-ice);
  letter-spacing: -.02em;
  grid-row: 1 / span 2;
  opacity: .85;
}

.page-news .journal-head .section-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4.6vw, 2.15rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--c-bright);
  margin: 0;
}

.page-news .journal-head .section-lede {
  grid-column: 2;
  margin: 0;
  font-size: .96rem;
  line-height: 1.72;
  color: var(--c-text-dim);
}

/* ---------- 标签切换 ---------- */
.page-news .journal-tabs {
  margin-top: 1.6rem;
}

.page-news .journal-tablist {
  display: flex;
  flex-wrap: nowrap;
  gap: .45rem;
  overflow-x: auto;
  overflow-y: hidden;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 0 .55rem;
  margin: 0 0 .35rem;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-news .journal-tablist::-webkit-scrollbar {
  display: none;
}

.page-news .journal-tab {
  flex: 0 0 auto;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius);
  color: var(--c-text-dim);
  font-family: var(--font-body);
  font-size: .85rem;
  line-height: 1;
  letter-spacing: .06em;
  padding: .56rem .92rem;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .journal-tab:hover {
  color: var(--c-bright);
  border-color: var(--c-line);
  background: var(--c-glass);
}

.page-news .journal-tab[aria-selected="true"] {
  color: var(--c-void);
  background: var(--c-ice);
  border-color: var(--c-ice);
  font-weight: 600;
}

.page-news .journal-tab:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-news .journal-panel[hidden] {
  display: none;
}

/* ---------- 条目时间线 ---------- */
.page-news .journal-stream {
  list-style: none;
  margin: 1.35rem 0 0;
  padding: 0;
}

.page-news .entry {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr);
  column-gap: .85rem;
}

.page-news .entry-rail {
  position: relative;
  padding-top: 1.05rem;
  display: flex;
  justify-content: flex-start;
}

.page-news .entry-no {
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--c-ice);
  line-height: 1;
}

.page-news .entry-rail::after {
  content: "";
  position: absolute;
  left: .28rem;
  top: 2.2rem;
  bottom: -1.1rem;
  width: 1px;
  background: linear-gradient(180deg, var(--news-track), var(--news-track-soft));
}

.page-news .entry:last-child .entry-rail::after {
  display: none;
}

.page-news .entry-card {
  border: 1px solid var(--c-line-soft);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  background: var(--news-card-bg);
  padding: 1rem 1.05rem 1.1rem;
  margin-bottom: 1rem;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-news .entry-card:hover,
.page-news .entry-card:focus-within {
  border-color: var(--c-line);
  border-left-color: var(--c-ice);
  transform: translateX(2px);
}

.page-news .entry-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
}

.page-news .entry-when {
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .04em;
  color: var(--c-steel);
}

.page-news .entry-title {
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 3.3vw, 1.36rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: .01em;
  color: var(--c-bright);
  margin: .55rem 0 .4rem;
}

.page-news .entry-sum {
  margin: 0;
  font-size: .94rem;
  line-height: 1.75;
  color: var(--c-text-dim);
}

.page-news .entry-more {
  margin-top: .75rem;
  padding-top: .6rem;
  border-top: 1px dashed var(--c-line-soft);
}

.page-news .entry-more summary {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  list-style: none;
  cursor: pointer;
  font-size: .79rem;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

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

.page-news .entry-more summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: .95rem;
  line-height: 1;
  color: var(--c-ice);
}

.page-news .entry-more[open] summary::before {
  content: "–";
}

.page-news .entry-more summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-news .entry-more p {
  margin: .6rem 0 0;
  font-size: .89rem;
  line-height: 1.78;
  color: var(--c-text-dim);
}

.page-news .entry-more a {
  color: var(--c-ice);
  text-decoration: underline;
  text-underline-offset: .18em;
}

/* ---------- 版本迭代轨迹 ---------- */
.page-news .version-track {
  list-style: none;
  margin: 1.7rem 0 0;
  padding: 0;
}

.page-news .version-node {
  display: grid;
  grid-template-columns: clamp(3.1rem, 12vw, 4.6rem) minmax(0, 1fr);
  column-gap: .85rem;
}

.page-news .version-tag {
  font-family: var(--font-mono);
  font-size: .84rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-ice);
  text-align: right;
  padding-top: .16rem;
}

.page-news .version-body {
  position: relative;
  padding: 0 0 1.45rem 1.5rem;
}

.page-news .version-body::before {
  content: "";
  position: absolute;
  left: 0;
  top: .45rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-ice);
  box-shadow: 0 0 0 3px var(--c-glass);
}

.page-news .version-body::after {
  content: "";
  position: absolute;
  left: 3.5px;
  top: 1.45rem;
  bottom: .1rem;
  width: 1px;
  background: linear-gradient(180deg, var(--news-track), var(--news-track-soft));
}

.page-news .version-node:last-child .version-body::after {
  display: none;
}

.page-news .version-name {
  margin: 0 0 .25rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--c-bright);
}

.page-news .version-note {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--c-text-dim);
  max-width: 62ch;
}

/* ---------- 非对称分栏 ---------- */
.page-news .split-5-7,
.page-news .split-7-5 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.3rem, 3.4vw, 2.2rem);
  margin-top: 1.6rem;
}

.page-news .mobile-figure,
.page-news .obs-figure {
  margin: 0;
}

.page-news .obs-figure .figure-frame {
  aspect-ratio: 10 / 7;
}

/* ---------- 手记列表 ---------- */
.page-news .note-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .note {
  position: relative;
  border-top: 1px solid var(--c-line-soft);
  padding: 1rem 0 1rem 1.15rem;
}

.page-news .note:first-child {
  border-top: 0;
  padding-top: .2rem;
}

.page-news .note::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.32rem;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-cyan);
}

.page-news .note:first-child::before {
  top: .55rem;
}

.page-news .note-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .1em;
  color: var(--c-steel);
}

.page-news .note-title {
  margin: .32rem 0 .35rem;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.34;
  letter-spacing: .01em;
  color: var(--c-bright);
}

.page-news .note p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--c-text-dim);
}

/* ---------- 数据观察 ---------- */
.page-news .metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .9rem;
}

.page-news .metric {
  border: 1px solid var(--c-line-soft);
  border-radius: var(--radius);
  background: var(--c-glass);
  padding: .95rem 1rem 1.05rem;
}

.page-news .metric-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 6vw, 2.15rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-cyan);
}

.page-news .metric-label {
  display: block;
  margin-top: .45rem;
  font-size: .82rem;
  letter-spacing: .06em;
  color: var(--c-ice);
}

.page-news .metric-note {
  margin: .55rem 0 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--c-text-dim);
}

/* ---------- 专题系列 ---------- */
.page-news .topic-band {
  margin: 1.6rem 0 0;
}

.page-news .topic-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .9rem;
  margin-top: 1.1rem;
}

.page-news .topic {
  border: 1px solid var(--c-line-soft);
  border-top: 2px solid var(--c-ice);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(14, 22, 38, .9), rgba(7, 11, 20, .7));
  padding: 1rem 1.05rem 1.15rem;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .topic:hover {
  border-color: var(--c-line);
  background: linear-gradient(180deg, rgba(20, 32, 54, .95), rgba(7, 11, 20, .78));
}

.page-news .topic-no {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--c-orange);
}

.page-news .topic-name {
  margin: .5rem 0 .4rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--c-bright);
}

.page-news .topic-desc {
  margin: 0;
  font-size: .9rem;
  line-height: 1.76;
  color: var(--c-text-dim);
}

/* ---------- 收束面板 ---------- */
.page-news .follow-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(127, 212, 255, .14), rgba(7, 11, 20, .82) 58%),
    var(--c-panel);
  padding: clamp(1.4rem, 4.5vw, 2.4rem);
}

.page-news .follow-panel::after {
  content: "";
  position: absolute;
  right: -3rem;
  top: -3rem;
  width: 12rem;
  height: 12rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(33, 230, 193, .22), transparent 68%);
  pointer-events: none;
}

.page-news .follow-copy {
  position: relative;
  z-index: 1;
  max-width: 62ch;
}

.page-news .follow-copy .section-title {
  margin: .5rem 0 .8rem;
}

.page-news .follow-copy p {
  margin: 0 0 .8rem;
  font-size: .95rem;
  line-height: 1.78;
  color: var(--c-text);
}

.page-news .follow-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.3rem;
}

.page-news .follow-foot {
  position: relative;
  z-index: 1;
  margin: 1.15rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--c-line-soft);
  font-size: .87rem;
  line-height: 1.72;
  color: var(--c-text-dim);
}

.page-news .follow-foot a {
  color: var(--c-ice);
  text-decoration: underline;
  text-underline-offset: .2em;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 720px) {
  .page-news .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-news .journal-head {
    column-gap: 1.4rem;
  }

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

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

@media (min-width: 900px) {
  .page-news .split-5-7 {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-news .split-7-5 {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-news .entry {
    grid-template-columns: 2.1rem minmax(0, 1fr);
    column-gap: 1.1rem;
  }

  .page-news .entry-rail {
    padding-top: 1.15rem;
  }

  .page-news .entry-rail::after {
    left: .38rem;
  }

  .page-news .version-body {
    padding-left: 1.7rem;
  }

  .page-news .note {
    padding-left: 1.4rem;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .entry-card,
  .page-news .topic,
  .page-news .journal-tab {
    transition: none;
  }

  .page-news .entry-card:hover,
  .page-news .entry-card:focus-within {
    transform: none;
  }
}
<<<END>>>