.page-news {
  --pn-cut: 16px;
  --pn-cut-btn: 11px;
  --pn-chamfer: polygon(0 0, calc(100% - var(--pn-cut)) 0, 100% var(--pn-cut), 100% 100%, var(--pn-cut) 100%, 0 calc(100% - var(--pn-cut)));
  --pn-gap: clamp(18px, 3vw, 34px);
  --pn-num-w: 82px;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  padding-top: clamp(26px, 4.5vw, 48px);
}

.page-news .news-hero::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: clamp(28px, 5vw, 60px);
  background: linear-gradient(90deg, var(--gold) 0, var(--gold) 64px, var(--line) 64px, var(--line) 100%);
}

.page-news .news-hero-grid {
  margin-top: clamp(22px, 3.5vw, 40px);
  row-gap: clamp(26px, 4vw, 36px);
  align-items: end;
}

.page-news .news-title {
  font-family: var(--font-sans);
  font-weight: 200;
  font-size: clamp(46px, 9vw, 116px);
  line-height: 1;
  letter-spacing: 0.02em;
  margin: 0.16em 0 0.24em;
  color: var(--paper);
}

.page-news .news-title .hl {
  font-weight: 300;
  color: var(--gold);
}

.page-news .news-hero-lead .lede {
  max-width: 32em;
}

.page-news .news-hero-plate {
  border: 1px solid var(--line-2);
  background: linear-gradient(158deg, var(--panel-2) 0%, var(--panel) 70%);
  clip-path: var(--pn-chamfer);
  padding: clamp(20px, 3vw, 30px);
  min-width: 0;
}

.page-news .plate-k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-news .plate-v {
  margin: 0.16em 0 0.55em;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(40px, 7vw, 62px);
  line-height: 1;
  color: var(--gold);
}

.page-news .plate-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-news .plate-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0 0;
  margin-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.5;
}

.page-news .plate-list span {
  color: var(--stone);
  white-space: nowrap;
}

.page-news .plate-list strong {
  color: var(--text);
  font-weight: 500;
  text-align: right;
}

/* ---------- 最新批次摘要 ---------- */
.page-news .news-brief-grid {
  row-gap: var(--pn-gap);
}

.page-news .brief-panel {
  border-left: 2px solid var(--cinnabar);
  padding-left: clamp(16px, 2.5vw, 28px);
}

.page-news .brief-list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
}

.page-news .brief-list li {
  position: relative;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-size: 16px;
  line-height: 1.85;
}

.page-news .brief-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-news .brief-list li::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 24px;
  width: 5px;
  height: 5px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-news .news-brief-media {
  min-width: 0;
}

.page-news .news-brief-media .media {
  margin: 0;
}

.page-news .news-brief-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: var(--pn-chamfer);
}

/* ---------- 版本记录条目流 ---------- */
.page-news .news-log .section-head {
  margin-bottom: clamp(22px, 3.5vw, 34px);
}

.page-news .log-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.5vw, 26px);
}

.page-news .log-rail ul {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-news .log-rail ul::-webkit-scrollbar {
  display: none;
}

.page-news .rail-link {
  display: inline-flex;
  align-items: center;
  padding: 9px 12px;
  border-left: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-news .rail-link:hover,
.page-news .rail-link:focus-visible {
  color: var(--gold);
  border-left-color: var(--gold);
  background: rgba(200, 164, 74, 0.06);
}

.page-news .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.page-news .log-item {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-news .log-entry {
  border-top: 1px solid var(--line);
  transition: background-color 0.25s ease, border-color 0.25s ease;
}

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

.page-news .log-item--current .log-entry {
  border-left: 2px solid var(--cinnabar);
  padding-left: clamp(12px, 2vw, 20px);
}

.page-news .log-item:target .log-entry {
  background: rgba(200, 164, 74, 0.06);
  border-left-color: var(--gold);
}

.page-news .log-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px 16px;
  padding: clamp(16px, 2.4vw, 22px) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-news .log-summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-news .log-no {
  flex: 0 0 auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--gold);
  white-space: nowrap;
}

.page-news .log-head {
  flex: 1 1 240px;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
}

.page-news .log-title {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: var(--paper);
}

.page-news .log-chips {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-news .log-toggle {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 7px;
  margin-left: auto;
}

.page-news .log-toggle::before,
.page-news .log-toggle::after {
  content: "";
  position: absolute;
  background: var(--stone);
  transition: transform 0.25s ease, background-color 0.25s ease;
}

.page-news .log-toggle::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-news .log-toggle::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

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

.page-news .log-entry[open] .log-toggle::before {
  background: var(--gold);
}

.page-news .log-body {
  padding: 2px 0 clamp(20px, 3vw, 30px);
}

.page-news .log-body p {
  max-width: 40em;
  margin: 0 0 0.9em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-news .log-body p:last-child {
  margin-bottom: 0;
}

.page-news .log-figure {
  margin: 18px 0 4px;
  max-width: 560px;
}

.page-news .log-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: var(--pn-chamfer);
}

/* ---------- 区域服务动态 ---------- */
.page-news .news-region {
  margin-top: clamp(40px, 6vw, 76px);
  padding: clamp(44px, 7vw, 88px) 0;
  background: linear-gradient(152deg, var(--teal) 0%, var(--ink) 88%);
}

.page-news .news-region .section-head {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-news .region-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 42px);
  align-items: start;
}

.page-news .region-switch {
  min-width: 0;
}

.page-news .region-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-news .region-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  border: 1px solid rgba(236, 233, 226, 0.16);
  background: rgba(8, 9, 11, 0.34);
  clip-path: var(--pn-chamfer);
  min-width: 0;
}

.page-news .region-k {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: rgba(236, 233, 226, 0.58);
}

.page-news .region-v {
  font-size: 15px;
  line-height: 1.5;
  font-weight: 500;
  color: var(--paper);
}

.page-news .region-media {
  margin: 0;
  min-width: 0;
}

.page-news .region-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(236, 233, 226, 0.16);
  clip-path: var(--pn-chamfer);
}

.page-news .region-media .media__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(236, 233, 226, 0.62);
}

/* ---------- 历史批次归档 ---------- */
.page-news .news-archive {
  padding: clamp(44px, 7vw, 88px) 0;
  background: linear-gradient(168deg, var(--indigo) 0%, var(--ink) 72%);
}

.page-news .news-archive .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .arch-groups {
  display: grid;
  gap: 0;
}

.page-news .arch-group {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-top: 1px solid rgba(236, 233, 226, 0.14);
}

.page-news .arch-year {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .arch-year-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 4.4vw, 44px);
  line-height: 1;
  color: var(--gold);
}

.page-news .arch-year-range {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--stone);
}

.page-news .arch-items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-news .arch-items li {
  position: relative;
  padding-left: 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

.page-news .arch-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--bronze);
}

.page-news .arch-note {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-news .arch-media {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.page-news .arch-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(236, 233, 226, 0.14);
  clip-path: var(--pn-chamfer);
}

/* ---------- 跟踪方式 ---------- */
.page-news .news-track {
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-news .track-panel {
  max-width: 58em;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line-2);
  background: linear-gradient(152deg, var(--panel-2) 0%, var(--panel) 78%);
  clip-path: var(--pn-chamfer);
}

.page-news .track-panel .h2 {
  margin-top: 0.25em;
}

.page-news .track-panel p {
  max-width: 40em;
  margin: 0 0 1em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-news .track-panel p:last-of-type {
  margin-bottom: 0;
}

.page-news .track-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-news .region-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-news .arch-group {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 26px 34px;
    align-items: start;
  }

  .page-news .log-body {
    padding-left: calc(var(--pn-num-w) + 16px);
  }
}

@media (min-width: 960px) {
  .page-news .log-shell {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: clamp(22px, 3vw, 40px);
  }

  .page-news .log-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }

  .page-news .log-rail ul {
    flex-direction: column;
    overflow: visible;
    gap: 0;
  }

  .page-news .rail-link {
    width: 100%;
  }

  .page-news .region-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (max-width: 599px) {
  .page-news .log-no {
    flex: 0 0 auto;
    letter-spacing: 0.1em;
  }

  .page-news .log-toggle {
    margin-left: 0;
  }

  .page-news .log-item--current .log-entry {
    padding-left: 12px;
  }
}