.page-news .breadcrumbs__current {
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(34px, 5.5vw, 68px) 0 clamp(38px, 5.5vw, 72px);
  border-bottom: 1px solid var(--line);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink-2);
  clip-path: polygon(100% 0, 100% 100%, 30% 100%);
  opacity: 0.72;
  z-index: 0;
  pointer-events: none;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4.5vw, 52px);
  grid-template-columns: 1fr;
}

.page-news .news-hero__lead h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(29px, 5.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 18px;
  max-width: 16em;
}

.page-news .news-hero__lead .lede {
  max-width: 34em;
  color: var(--mist);
}

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

.page-news .news-hero__board {
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
  box-shadow: var(--shadow);
  padding: clamp(18px, 3vw, 26px);
  display: grid;
  gap: 20px;
}

.page-news .board-stat {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-news .board-stat:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-news .board-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(40px, 7.5vw, 64px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-news .board-stat__label {
  font-size: 14px;
  line-height: 1.55;
  color: var(--mist);
}

.page-news .board-note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 分类筛选带 ---------- */
.page-news .note-filter {
  background: var(--ink-2);
  border-bottom: 1px solid var(--line-strong);
}

.page-news .note-filter__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 14px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-news .note-filter__link {
  display: inline-block;
  white-space: nowrap;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-news .note-filter__link:hover,
.page-news .note-filter__link:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 主布局 ---------- */
.page-news .notes-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: 1fr;
}

.page-news .notes-index {
  border-left: 2px solid var(--cyan);
  padding: 4px 0 4px 16px;
}

.page-news .notes-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

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

.page-news .notes-index__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-news .notes-index__link .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone);
}

.page-news .notes-index__link:hover,
.page-news .notes-index__link:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

.page-news .notes-index__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 笔记时间线 ---------- */
.page-news .notes-stream {
  position: relative;
}

.page-news .note {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

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

.page-news .note__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.page-news .note__when {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--stone);
  letter-spacing: 0.03em;
}

.page-news .note__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 23px);
  line-height: 1.35;
  color: var(--paper);
}

.page-news .note__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-news .note__more {
  margin-top: 10px;
  border-left: 1px solid var(--line-strong);
  padding-left: 12px;
}

.page-news .note__more summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

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

.page-news .note__more summary::after {
  content: "+";
  font-size: 14px;
  line-height: 1;
}

.page-news .note__more[open] summary::after {
  content: "–";
}

.page-news .note__more p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--stone);
}

/* ---------- 图文区块 ---------- */
.page-news .news-block {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: 1fr;
}

.page-news .news-block__body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .news-block__body .btn {
  margin-top: 22px;
}

.page-news .beatline {
  margin: 22px 0 0;
  color: var(--cyan);
}

.page-news .beatline svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 380px;
}

.page-news .beatline__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .beatline__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 13px;
  color: var(--stone);
  border-bottom: 1px solid var(--line);
  padding-bottom: 8px;
}

.page-news .beatline__list .num {
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--paper);
  min-width: 56px;
}

/* ---------- 技巧折叠 ---------- */
.page-news .tips-list {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-news .tips-item {
  border: 1px solid var(--line-strong);
  background: var(--ink-2);
  border-radius: var(--radius);
  transition: border-color 0.2s var(--ease);
}

.page-news .tips-item[open] {
  border-color: var(--moss);
}

.page-news .tips-item__summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--paper);
}

.page-news .tips-item__summary::-webkit-details-marker {
  display: none;
}

.page-news .tips-item__summary::after {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.2s var(--ease);
}

.page-news .tips-item[open] .tips-item__summary::after {
  transform: rotate(-135deg);
}

.page-news .tips-item__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
}

.page-news .tips-item__body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .tips-tail {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-news .inline-link {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .inline-link:hover,
.page-news .inline-link:focus-visible {
  color: var(--cyan);
}

/* ---------- 专题系列 ---------- */
.page-news .series__intro {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  grid-template-columns: 1fr;
  align-items: start;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-news .series__intro p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-news .series__rail {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
  scrollbar-width: thin;
}

.page-news .series-card {
  flex: 0 0 78%;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line-strong);
  border-top: 2px solid var(--moss);
  background: var(--ink-2);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.page-news .series-card__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
  color: var(--paper);
}

.page-news .series-card__text {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.7;
  color: var(--stone);
}

.page-news .series-card__link {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 2px;
}

.page-news .series-card__link:hover,
.page-news .series-card__link:focus-visible {
  color: var(--cyan-soft);
}

/* ---------- 资料库 ---------- */
.page-news .lib-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .lib-list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-news .lib-list .num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--clay);
}

/* ---------- 入口 ---------- */
.page-news .entry-grid {
  margin-top: 24px;
}

.page-news .entry-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 2px solid var(--cyan);
}

.page-news .entry-card .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-news .note__title {
    font-size: 22px;
  }

  .page-news .series-card {
    flex: 0 0 320px;
  }

  .page-news .notes-stream {
    padding-left: 42px;
  }

  .page-news .notes-stream::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: var(--line-strong);
  }

  .page-news .note {
    position: relative;
  }

  .page-news .note::before {
    content: "";
    position: absolute;
    left: -42px;
    top: 26px;
    width: 9px;
    height: 9px;
    background: var(--ink);
    border: 1px solid var(--cyan);
    transform: rotate(45deg);
  }

  .page-news .note:first-child::before {
    top: 6px;
  }
}

@media (min-width: 900px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: end;
  }

  .page-news .news-block {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-news .news-block--flip .news-block__media {
    order: 2;
  }

  .page-news .series__intro {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }
}

@media (min-width: 990px) {
  .page-news .notes-layout {
    grid-template-columns: 262px minmax(0, 1fr);
    align-items: start;
  }

  .page-news .notes-index {
    position: sticky;
    top: 88px;
  }
}

@media (max-width: 719px) {
  .page-news .news-hero::after {
    clip-path: polygon(0 82%, 100% 68%, 100% 100%, 0 100%);
    opacity: 0.6;
  }

  .page-news .note-filter__list {
    padding-right: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .note-filter__link,
  .page-news .notes-index__link,
  .page-news .tips-item__summary::after {
    transition: none;
  }
}
<<<END>>>