.page-news {
  --news-measure: 44em;
  overflow-x: clip;
}

.page-news section[id] {
  scroll-margin-top: calc(var(--header-h) + 14px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  padding: 26px 0 10px;
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(46, 230, 168, .16) 0%, rgba(46, 230, 168, 0) 58%),
    radial-gradient(90% 70% at 0% 0%, rgba(30, 144, 255, .12) 0%, rgba(30, 144, 255, 0) 62%),
    var(--paper);
}

.page-news .crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--brown);
}

.page-news .crumb a {
  color: var(--blue);
  text-decoration: none;
}

.page-news .crumb a:hover {
  text-decoration: underline;
}

.page-news .crumb-sep {
  color: var(--line-strong);
}

.page-news .hero-grid {
  display: grid;
  gap: 26px;
}

.page-news .hero-coord {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--brick);
}

.page-news h1 {
  margin: 0 0 18px;
  max-width: 20em;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--ink);
  overflow-wrap: break-word;
}

.page-news .lede {
  margin: 0 0 24px;
  max-width: var(--measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-news .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .hero-aside {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, .76);
  box-shadow: var(--shadow-low);
}

.page-news .aside-cell {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .aside-cell:last-of-type {
  border-bottom: 0;
}

.page-news .aside-num {
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--blue);
}

.page-news .aside-label {
  font-size: 13px;
  color: var(--brown);
}

.page-news .aside-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--brown);
}

.page-news .jump-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .jump-chip {
  display: inline-block;
  padding: 7px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
}

.page-news .jump-chip:hover {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--ink);
}

/* ---------- 通用小节标题 ---------- */
.page-news .section-head {
  margin-bottom: 26px;
}

.page-news .section-note {
  margin: 10px 0 0;
  max-width: var(--news-measure);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--brown);
}

/* ---------- 日志流 ---------- */
.page-news .log {
  display: grid;
  gap: 0;
}

.page-news .log--tight {
  margin-top: 34px;
}

.page-news .log-item {
  position: relative;
  margin: 0;
  padding-left: 20px;
  border-left: 1px solid var(--line-strong);
  transition: border-color 200ms var(--ease);
}

.page-news .log-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 25px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--brick);
  transition: background 200ms var(--ease);
}

.page-news .log-item[data-cat="version"]::before { background: var(--blue); }
.page-news .log-item[data-cat="assets"]::before { background: var(--mint); }
.page-news .log-item[data-cat="structure"]::before { background: var(--orange); }
.page-news .log-item[data-cat="tips"]::before { background: var(--brick); }

.page-news .log-item:hover {
  border-left-color: var(--blue);
}

.page-news .log-item:hover::before {
  background: var(--blue);
}

.page-news .log-item > summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 14px;
  padding: 18px 2px 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-news .log-item > summary::-webkit-details-marker { display: none; }
.page-news .log-item > summary::marker { content: ''; }

.page-news .log-tags {
  grid-column: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-news .log-toggle {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  font-size: 18px;
  line-height: 1;
  color: var(--blue);
  transition: transform 200ms var(--ease);
}

.page-news .log-item[open] .log-toggle {
  transform: rotate(45deg);
}

.page-news .log-title {
  grid-column: 1;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--ink);
  overflow-wrap: break-word;
}

.page-news .log-lead {
  grid-column: 1;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--brown);
  overflow-wrap: break-word;
}

.page-news .log-more {
  margin-top: 2px;
  padding: 14px 2px 20px 0;
  border-top: 1px dashed var(--line);
}

.page-news .log-more p {
  margin: 0;
  max-width: var(--news-measure);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 媒体框 ---------- */
.page-news .media-frame {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(135deg, var(--mist) 0%, var(--paper) 100%);
}

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

/* ---------- 版本带 ---------- */
.page-news .version-band {
  margin-top: 30px;
  padding: 22px 22px 26px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .92) 0%, var(--mist) 100%);
}

.page-news .vb-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-size: 15px;
  color: var(--brown);
}

.page-news .vb-title strong {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--blue);
}

.page-news .vb-track {
  display: grid;
  gap: 18px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .vb-step {
  position: relative;
  display: grid;
  gap: 3px;
  padding-left: 26px;
}

.page-news .vb-step::before {
  content: '';
  position: absolute;
  left: 0;
  top: 5px;
  width: 10px;
  height: 10px;
  border: 2px solid var(--blue-soft);
  border-radius: 50%;
  background: var(--paper);
  transition: border-color 200ms var(--ease), background 200ms var(--ease);
}

.page-news .vb-step:hover::before {
  border-color: var(--mint);
  background: var(--mint);
}

.page-news .vb-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--blue);
}

.page-news .vb-step strong {
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
}

.page-news .vb-desc {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--brown);
}

/* ---------- 迭代节奏表 ---------- */
.page-news .cadence {
  display: grid;
  gap: 0;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-news .cadence > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-news .cadence dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--brown);
}

.page-news .cadence dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 左右分栏 ---------- */
.page-news .split {
  display: grid;
  gap: 24px;
  align-items: start;
}

.page-news .split-copy h3 {
  margin: 0 0 12px;
  font-size: 23px;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-news .split-copy p {
  margin: 0 0 14px;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-news .point-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--brown);
}

.page-news .point-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
}

/* ---------- 使用技巧 ---------- */
.page-news .tip-grid {
  display: grid;
  gap: 20px;
  margin-bottom: 32px;
}

.page-news .tip {
  padding-top: 16px;
  border-top: 2px solid var(--blue);
}

.page-news .tip:nth-child(2) { border-top-color: var(--mint); }
.page-news .tip:nth-child(3) { border-top-color: var(--orange); }
.page-news .tip:nth-child(4) { border-top-color: var(--brick); }

.page-news .tip-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--brown);
}

.page-news .tip h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.4;
  color: var(--ink);
}

.page-news .tip p {
  margin: 0 0 10px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .scene-row {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.page-news .scene {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .78);
}

.page-news .scene h4 {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--ink);
}

.page-news .scene p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--brown);
}

/* ---------- 跟进更新 ---------- */
.page-news .follow-grid {
  display: grid;
  gap: 18px;
}

.page-news .follow-card {
  padding: 22px 20px;
  border-left: 3px solid var(--blue);
  border-radius: 14px;
  background: var(--mist);
}

.page-news .follow-card:nth-child(2) { border-left-color: var(--mint); }
.page-news .follow-card:nth-child(3) { border-left-color: var(--orange); }

.page-news .follow-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  color: var(--ink);
}

.page-news .follow-card p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .follow-outro {
  margin: 30px 0 0;
  padding: 24px 24px 26px;
  max-width: 62em;
  border-radius: 16px;
  background: var(--green-ink);
  font-size: 15px;
  line-height: 1.9;
  color: var(--paper);
}

.page-news .follow-outro .link {
  color: var(--mint-soft);
  text-decoration: underline;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-news .scene-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-news .cadence > div {
    grid-template-columns: minmax(0, 8em) minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-news .tip-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 44px;
  }

  .page-news .follow-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-news .split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 46px;
  }

  .page-news .split--flip > .media-frame {
    order: 2;
  }

  .page-news .vb-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid var(--line-strong);
  }

  .page-news .vb-step {
    padding: 0 20px 0 24px;
  }

  .page-news .vb-step::before {
    top: -29px;
    left: 10px;
  }
}

@media (min-width: 960px) {
  .page-news .news-hero {
    padding-top: 34px;
  }

  .page-news .hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
    gap: 52px;
    align-items: end;
  }

  .page-news .jump-row {
    margin-top: 38px;
  }
}

@media (min-width: 1000px) {
  .page-news .scene-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .log-item,
  .page-news .log-item::before,
  .page-news .log-toggle,
  .page-news .vb-step::before,
  .page-news .jump-chip {
    transition: none;
  }
}