.page-news {
  --news-rule: 1px solid var(--line);
  --news-rule-soft: 1px solid var(--line-soft);
  background-color: var(--ink-950);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

/* ---------- 页首 ---------- */

.page-news .notes-masthead {
  position: relative;
  padding: calc(var(--header-h) + 44px) 0 44px;
  border-bottom: var(--news-rule);
  background:
    radial-gradient(118% 88% at 86% 4%, rgba(38, 242, 226, 0.13) 0%, rgba(38, 242, 226, 0) 60%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-950) 100%);
}

.page-news .notes-masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 18%, rgba(38, 242, 226, 0) 42%),
              linear-gradient(270deg, var(--orange) 0%, var(--orange) 6%, rgba(255, 138, 33, 0) 22%);
  pointer-events: none;
}

.page-news .masthead-grid {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-news .masthead-copy {
  min-width: 0;
}

.page-news .masthead-copy .label {
  margin: 0;
}

.page-news .notes-masthead h1 {
  margin: 16px 0 0;
  font-size: clamp(32px, 7.6vw, 54px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-news .masthead-lede {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-news .masthead-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-news .masthead-media {
  margin: 0;
  position: relative;
  min-width: 0;
  border: var(--news-rule);
  background-color: var(--ink-800);
  overflow: hidden;
}

.page-news .masthead-media::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 4px;
  background-color: var(--cyan);
  z-index: 1;
}

.page-news .masthead-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.9);
}

/* ---------- 主体骨架 ---------- */

.page-news .notes-shell {
  display: grid;
  padding-top: 30px;
  padding-bottom: 72px;
}

/* 左栏 */

.page-news .notes-rail {
  min-width: 0;
  padding-bottom: 26px;
  border-bottom: var(--news-rule);
}

.page-news .rail-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .rail-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  color: var(--steel);
  font-size: 14px;
  text-decoration: none;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-news .rail-link:hover,
.page-news .rail-link:focus-visible {
  color: var(--paper);
  border-left-color: var(--cyan);
  background-color: rgba(38, 242, 226, 0.05);
}

.page-news .rail-link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background-color: rgba(38, 242, 226, 0.08);
}

.page-news .rail-no {
  font-size: 12px;
  color: var(--cyan);
  opacity: 0.6;
  transition: opacity 200ms var(--ease);
}

.page-news .rail-link[aria-current="true"] .rail-no {
  opacity: 1;
}

.page-news .rail-cadence {
  margin-top: 26px;
  padding: 16px;
  background-color: var(--ink-900);
  border: var(--news-rule);
  border-left: 3px solid var(--cyan);
}

.page-news .rail-cadence-text {
  margin: 10px 0 14px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
}

/* 右栏条目流 */

.page-news .notes-stream {
  min-width: 0;
}

.page-news .note-section {
  padding: 40px 0 44px;
}

.page-news .note-section:first-child {
  padding-top: 34px;
}

.page-news .note-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 16px;
  align-items: start;
}

.page-news .chapter-no {
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
  opacity: 0.34;
}

.page-news .note-head-copy {
  min-width: 0;
}

.page-news .note-head-copy .label {
  margin: 4px 0 0;
}

.page-news .note-head-copy .section-title {
  margin: 7px 0 0;
  font-size: clamp(24px, 5.4vw, 34px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.012em;
  color: var(--paper);
}

.page-news .note-intro {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--steel);
}

/* 条目 */

.page-news .note-list {
  margin-top: 26px;
  border-top: var(--news-rule-soft);
}

.page-news .note-item {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 12px;
  padding: 22px 12px 22px 10px;
  border-bottom: var(--news-rule-soft);
  border-left: 2px solid transparent;
  transition: background-color 200ms var(--ease), border-left-color 200ms var(--ease);
}

.page-news .note-item:hover {
  background-color: rgba(38, 242, 226, 0.045);
  border-left-color: var(--cyan);
}

.page-news .note-no {
  font-size: 15px;
  line-height: 1.4;
  color: var(--cyan);
  opacity: 0.6;
  transition: opacity 200ms var(--ease);
}

.page-news .note-item:hover .note-no {
  opacity: 1;
}

.page-news .note-body {
  min-width: 0;
}

.page-news .note-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-bottom: 9px;
}

.page-news .note-time {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--steel);
  opacity: 0.85;
}

.page-news .note-title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.38;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-news .note-excerpt {
  margin: 9px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--steel);
}

/* 图版 */

.page-news .note-figure,
.page-news .version-figure,
.page-news .metrics-figure {
  margin: 30px 0 0;
  border: var(--news-rule);
  background-color: var(--ink-900);
}

.page-news .note-figure img,
.page-news .version-figure img,
.page-news .metrics-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.08) brightness(0.92);
}

.page-news .note-figure img {
  aspect-ratio: 14 / 8;
}

.page-news .version-figure img {
  aspect-ratio: 16 / 9;
}

.page-news .metrics-figure img {
  aspect-ratio: 3 / 2;
}

.page-news .note-figure figcaption,
.page-news .version-figure figcaption,
.page-news .metrics-figure figcaption {
  padding: 12px 16px;
  border-top: var(--news-rule-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

/* 章节色带 */

.page-news .notes-divider {
  position: relative;
  height: 12px;
  margin: 0;
  background-color: var(--ink-900);
  border-top: var(--news-rule-soft);
  border-bottom: var(--news-rule-soft);
  overflow: hidden;
}

.page-news .notes-divider::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(38, 242, 226, 0.12) 68%, rgba(38, 242, 226, 0) 100%);
  opacity: 0.62;
}

.page-news .notes-divider::after {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: 8px;
  background-color: var(--orange);
}

/* 纸白面板 */

.page-news .metrics-panel {
  margin-top: 26px;
  padding: 22px 20px;
}

.page-news .metrics-panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-deep);
}

/* 专题系列 */

.page-news .series-track {
  margin-top: 26px;
  padding-bottom: 14px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .series-list {
  list-style: none;
  margin: 0;
  padding: 2px 2px 0;
  display: flex;
  gap: 18px;
  min-width: max-content;
}

.page-news .series-card {
  position: relative;
  flex: 0 0 auto;
  width: min(76vw, 248px);
  padding: 18px 16px 20px;
  background-color: var(--ink-900);
  border: var(--news-rule);
  border-top: 2px solid var(--cyan);
  scroll-snap-align: start;
  transition: background-color 220ms var(--ease), border-top-color 220ms var(--ease);
}

.page-news .series-card:nth-child(3n + 2) {
  border-top-color: var(--orange);
}

.page-news .series-card:nth-child(3n) {
  border-top-color: var(--magenta);
}

.page-news .series-card:hover {
  background-color: var(--ink-800);
}

.page-news .series-card::after {
  content: "";
  position: absolute;
  top: 26px;
  right: -18px;
  width: 18px;
  height: 1px;
  background-color: var(--line);
}

.page-news .series-card:last-child::after {
  display: none;
}

.page-news .series-no {
  display: block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-news .series-title {
  margin: 12px 0 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-news .series-desc {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

/* 编辑推荐 */

.page-news .pick-row {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .pick-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  height: 100%;
  padding: 18px 16px;
  background-color: var(--ink-900);
  border: var(--news-rule);
  text-decoration: none;
  color: inherit;
  transition: border-color 220ms var(--ease), background-color 220ms var(--ease), transform 240ms var(--ease);
}

.page-news .pick-card:hover,
.page-news .pick-card:focus-visible {
  border-color: var(--line-strong);
  background-color: var(--ink-800);
  transform: translateY(-2px);
}

.page-news .pick-no {
  font-size: 13px;
  line-height: 1.5;
  color: var(--orange);
}

.page-news .pick-body {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 0;
}

.page-news .pick-body .tag {
  align-self: flex-start;
}

.page-news .pick-title {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.42;
  color: var(--paper);
}

.page-news .pick-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

/* 更新节奏面板 */

.page-news .cadence-panel {
  margin-top: 38px;
  padding: 26px 20px 28px;
  background-color: var(--ink-900);
  border: var(--news-rule);
  border-left: 3px solid var(--orange);
}

.page-news .cadence-title {
  margin: 10px 0 0;
  font-size: clamp(20px, 4.6vw, 26px);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-news .cadence-text {
  margin: 14px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--steel);
}

.page-news .cadence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 平板 ---------- */

@media (min-width: 700px) {

  .page-news .notes-masthead {
    padding: calc(var(--header-h) + 64px) 0 62px;
  }

  .page-news .masthead-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 40px;
    align-items: end;
  }

  .page-news .chapter-no {
    font-size: 68px;
  }

  .page-news .note-item {
    grid-template-columns: 3rem minmax(0, 1fr);
    gap: 18px;
    padding: 26px 14px 26px 12px;
  }

  .page-news .note-title {
    font-size: 22px;
  }

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

  .page-news .series-card {
    width: 264px;
  }

  .page-news .metrics-panel {
    padding: 28px 30px;
  }

  .page-news .cadence-panel {
    padding: 32px 30px 34px;
  }
}

/* ---------- 桌面：5 / 7 杂志式分栏 ---------- */

@media (min-width: 1000px) {

  .page-news .notes-shell {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: clamp(36px, 4.4vw, 68px);
    align-items: start;
    padding-top: 56px;
    padding-bottom: 96px;
  }

  .page-news .notes-rail {
    align-self: stretch;
    padding: 4px 30px 40px 0;
    border-bottom: 0;
    border-right: var(--news-rule);
  }

  .page-news .rail-sticky {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-news .note-section {
    padding: 0 0 68px;
  }

  .page-news .note-section:first-child {
    padding-top: 0;
  }

  .page-news .chapter-no {
    font-size: 76px;
  }

  .page-news .notes-divider {
    margin-bottom: 68px;
  }

  .page-news .note-item {
    padding: 28px 16px 28px 12px;
  }

  .page-news .note-excerpt {
    max-width: 74ch;
  }
}

/* ---------- 超宽 ---------- */

@media (min-width: 1240px) {

  .page-news .note-list {
    margin-top: 30px;
  }

  .page-news .series-card {
    width: 272px;
  }
}

/* ---------- 动效收敛 ---------- */

@media (prefers-reduced-motion: reduce) {

  .page-news .note-item,
  .page-news .pick-card,
  .page-news .rail-link,
  .page-news .note-no,
  .page-news .rail-no,
  .page-news .series-card {
    transition: none;
  }

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