.page-news {
  --news-rail: 232px;
  --news-gap: 48px;
  --news-shell: 1120px;
  max-width: var(--news-shell);
  margin: 0 auto;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding: 16px 0 34px;
  background:
    radial-gradient(58% 130% at 10% 0%, rgba(87, 217, 163, 0.10), transparent 68%),
    radial-gradient(54% 120% at 92% 0%, rgba(142, 123, 239, 0.13), transparent 72%);
}

.page-news .news-hero__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin: 0 0 14px;
}

.page-news .news-hero__title {
  font-size: clamp(27px, 6.4vw, 46px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 0 0 18px;
  max-width: 22ch;
}

.page-news .news-hero__lede {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.page-news .news-hero__meta {
  list-style: none;
  margin: 30px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-news .news-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.page-news .news-hero__meta .num {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text);
}

.page-news .news-hero__meta li:nth-child(1) .num { color: var(--amber); }
.page-news .news-hero__meta li:nth-child(2) .num { color: var(--lime); }
.page-news .news-hero__meta li:nth-child(3) .num { color: var(--violet); }

/* ---------- 目录式双栏 ---------- */
.page-news .news-body {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

.page-news .tag-rail {
  min-width: 0;
}

.page-news .tag-rail__cap {
  margin: 0 0 10px;
}

.page-news .tag-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

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

.page-news .tag-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-width: 132px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .tag-link .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}

.page-news .tag-link:hover,
.page-news .tag-link:focus-visible {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  outline: none;
}

.page-news .tag-link:hover .num,
.page-news .tag-link:focus-visible .num {
  color: var(--ink);
}

.page-news .tag-rail__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted-dim);
}

/* ---------- 条目分组 ---------- */
.page-news .entry-group {
  scroll-margin-top: 88px;
  min-width: 0;
}

.page-news .entry-group + .entry-group {
  margin-top: 46px;
}

.page-news .entry-group .section-title {
  font-size: 22px;
}

.page-news .entry-group .section-lede {
  font-size: 15px;
  color: var(--muted);
  max-width: 60ch;
  margin: 8px 0 20px;
}

.page-news .entry-list {
  border-top: 1px solid var(--line);
}

.page-news .entry {
  border-bottom: 1px solid var(--line);
}

.page-news .entry > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18px;
  grid-template-areas:
    "time mark"
    "title mark";
  gap: 5px 14px;
  padding: 15px 2px 15px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .entry > summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-news .entry-time {
  grid-area: time;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: none;
}

.page-news .entry-title {
  grid-area: title;
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--text);
}

.page-news .entry-mark {
  grid-area: mark;
  align-self: center;
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.page-news .entry-mark::before,
.page-news .entry-mark::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease), background 0.2s var(--ease);
}

.page-news .entry-mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 1.5px;
}

.page-news .entry-mark::after {
  left: 7px;
  top: 0;
  width: 1.5px;
  height: 16px;
}

.page-news .entry[open] .entry-mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-news .entry[open] .entry-mark::before {
  background: var(--amber);
}

.page-news .entry[open] .entry-time {
  color: var(--amber);
}

.page-news .entry-body {
  padding: 0 0 18px;
}

.page-news .entry-body p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 通用章节 ---------- */
.page-news .news-section {
  margin-top: 68px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-news .news-section .section-title {
  font-size: clamp(22px, 4.6vw, 30px);
}

.page-news .news-section .section-lede {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 本季重点 ---------- */
.page-news .focus__grid {
  display: grid;
  gap: 26px;
  margin-top: 20px;
}

.page-news .flow {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-news .flow li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .flow li:first-child {
  border-top: 1px dashed var(--line);
}

.page-news .flow .num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--lime);
  padding-top: 2px;
}

.page-news .flow h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
}

.page-news .flow p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-news .fig--3x2 { aspect-ratio: 3 / 2; }
.page-news .fig--10x7 { aspect-ratio: 10 / 7; }
.page-news .fig--12x7 { aspect-ratio: 12 / 7; }
.page-news .fig--1x1 { aspect-ratio: 1 / 1; }

.page-news .focus__wide {
  margin: 26px 0 0;
  max-width: 620px;
}

/* ---------- 帮助文档速览 ---------- */
.page-news .digest-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .digest-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .digest-list .num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
  line-height: 1.3;
}

.page-news .digest-list h3 {
  margin: 0 0 4px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
}

.page-news .digest-list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 58ch;
}

.page-news .doc-digest__cta {
  margin: 22px 0 0;
}

/* ---------- 专题连载 ---------- */
.page-news .serial__band {
  margin: 20px 0 26px;
}

.page-news .serial__grid {
  display: grid;
  gap: 22px;
}

.page-news .serial__list {
  display: grid;
  gap: 14px;
}

.page-news .serial__item {
  padding: 18px 18px 20px;
}

.page-news .serial__item .meta-line {
  margin: 0 0 8px;
  color: var(--violet);
}

.page-news .serial__item h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}

.page-news .serial__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .serial__fig {
  margin: 0;
  max-width: 360px;
}

.page-news .serial__more {
  margin: 24px 0 0;
  font-size: 14.5px;
  color: var(--muted-dim);
}

.page-news .serial__more a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, 0.4);
}

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

/* ---------- 更新节奏 ---------- */
.page-news .cadence__grid {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-news .cadence__card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-news .cadence__card .meta-line {
  margin: 0;
}

.page-news .cadence__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  letter-spacing: -0.02em;
}

.page-news .cadence__card:nth-child(2) .cadence__num { color: var(--amber); }
.page-news .cadence__card:nth-child(3) .cadence__num { color: var(--orange); }

.page-news .cadence__num span {
  font-size: 14px;
  font-weight: 500;
  margin-left: 6px;
  color: var(--muted);
}

.page-news .cadence__card p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-news .cadence__tip {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted-dim);
}

.page-news .cadence__tip a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 193, 78, 0.4);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-news .news-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

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

@media (min-width: 720px) {
  .page-news .entry > summary {
    grid-template-columns: 226px minmax(0, 1fr) 18px;
    grid-template-areas: "time title mark";
    gap: 0 16px;
    align-items: center;
    padding: 17px 2px 17px 0;
  }

  .page-news .entry-time {
    font-size: 12px;
  }

  .page-news .entry-body {
    padding: 0 0 20px 242px;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero {
    padding: 26px 0 42px;
  }

  .page-news .news-body {
    grid-template-columns: var(--news-rail) minmax(0, 1fr);
    gap: var(--news-gap);
    align-items: start;
    margin-top: 40px;
  }

  .page-news .tag-rail {
    position: sticky;
    top: 32px;
  }

  .page-news .tag-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

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

  .page-news .tag-link {
    min-width: 0;
    width: 100%;
  }

  .page-news .focus__grid {
    grid-template-columns: minmax(0, 1fr) 370px;
    gap: 36px;
  }

  .page-news .serial__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 32px;
    align-items: start;
  }

  .page-news .serial__fig {
    max-width: none;
  }
}

@media (min-width: 1120px) {
  .page-news .focus__wide {
    max-width: 720px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .tag-link,
  .page-news .entry-mark::before,
  .page-news .entry-mark::after {
    transition: none;
  }
}