.page-news {
  --news-line: rgba(245, 239, 224, .12);
  --news-gold-line: rgba(212, 175, 55, .45);
  background: var(--ink);
  color: var(--cream);
}

/* ===== 页头 ===== */
.page-news .news-page-head {
  padding: var(--space-5) 0 var(--space-4);
  border-bottom: 1px solid var(--news-line);
}

.page-news .breadcrumbs {
  margin-bottom: var(--space-4);
  font-size: .85rem;
}

.page-news .breadcrumbs a {
  color: var(--slate);
  text-decoration: none;
  transition: color .2s;
}

.page-news .breadcrumbs a:hover,
.page-news .breadcrumbs a:focus-visible {
  color: var(--gold);
}

.page-news .breadcrumbs a[aria-current="page"] {
  color: var(--gold);
}

.page-news .head-grid {
  display: grid;
  gap: var(--space-3);
}

.page-news .section-label {
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0;
}

.page-news .page-title {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3.6vw, 2.4rem);
  line-height: 1.15;
  font-weight: 700;
  color: var(--cream);
  text-shadow: 1px 1px 0 var(--deep-red), 3px 3px 10px rgba(0, 0, 0, .5);
  margin: var(--space-2) 0 0;
  letter-spacing: .02em;
}

.page-news .page-intro {
  margin: 0;
  font-size: .96rem;
  line-height: 1.75;
  color: var(--slate);
  max-width: 54rem;
  border-left: 3px solid var(--deep-red);
  padding-left: var(--space-3);
}

/* ===== 双栏布局 ===== */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  padding: var(--space-5) 0 var(--space-6);
}

/* ===== 侧栏 ===== */
.page-news .news-sidebar {
  border-top: 3px solid var(--deep-red);
  padding-top: var(--space-3);
}

.page-news .news-sidebar .section-heading {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--cream);
  margin: 0 0 var(--space-3);
}

.page-news .category-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-news .category-link {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .6rem .7rem;
  border: 1px solid var(--news-line);
  border-radius: 2px;
  color: var(--cream);
  text-decoration: none;
  font-size: .9rem;
  background: transparent;
  transition: background .2s, border-color .2s, transform .2s;
}

.page-news .category-link:hover,
.page-news .category-link:focus-visible {
  background: rgba(179, 27, 27, .18);
  border-color: var(--news-gold-line);
  transform: translateX(2px);
}

.page-news .category-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.page-news .dot-red { background: var(--deep-red); box-shadow: 0 0 6px rgba(179, 27, 27, .8); }
.page-news .dot-gold { background: var(--gold); box-shadow: 0 0 6px rgba(212, 175, 55, .7); }
.page-news .dot-moss { background: var(--moss); box-shadow: 0 0 6px rgba(75, 93, 66, .7); }

.page-news .category-count {
  margin-left: auto;
  font-size: .76rem;
  color: var(--slate);
}

.page-news .sidebar-status {
  margin-top: var(--space-4);
  padding: var(--space-3);
  background: rgba(245, 239, 224, .04);
  border-left: 2px solid var(--gold);
}

.page-news .status-label {
  font-family: var(--font-head);
  font-size: .82rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 var(--space-2);
}

.page-news .sidebar-status ul {
  list-style: none;
  margin: 0 0 var(--space-3);
  padding: 0;
}

.page-news .sidebar-status li {
  font-size: .86rem;
  line-height: 1.6;
  color: var(--slate);
  padding: .22rem 0 .22rem 1rem;
  position: relative;
}

.page-news .sidebar-status li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .75rem;
  width: 6px;
  height: 1px;
  background: var(--gold);
}

/* ===== 主体章节通用 ===== */
.page-news .news-section + .news-section {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--news-line);
}

.page-news .section-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.page-news .section-bar .section-heading {
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  color: var(--cream);
  margin: 0;
  position: relative;
  padding-left: var(--space-3);
}

.page-news .section-bar .section-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: .28em;
  bottom: .28em;
  width: 4px;
  background: linear-gradient(to bottom, var(--deep-red), var(--gold));
}

.page-news .section-version {
  font-size: .76rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate);
  border: 1px solid var(--news-line);
  padding: .22rem .6rem;
  white-space: nowrap;
}

/* ===== 最新更新：头条 ===== */
.page-news .news-featured {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-bottom: var(--space-3);
  background: var(--ink-2);
  border: 1px solid var(--news-line);
}

.page-news .featured-media {
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), 0 100%);
}

.page-news .featured-media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  transition: transform .4s ease;
}

.page-news .news-featured:hover .featured-media img {
  transform: scale(1.02);
}

.page-news .featured-body {
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-news .item-date {
  font-size: .76rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 var(--space-1);
}

.page-news .featured-body h3 {
  font-family: var(--font-head);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.35;
  color: var(--cream);
  margin: 0 0 var(--space-2);
}

.page-news .featured-body p {
  font-size: .9rem;
  line-height: 1.7;
  color: var(--slate);
  margin: 0 0 var(--space-2);
}

/* ===== 列表条目 ===== */
.page-news .news-entry {
  border-bottom: 1px solid var(--news-line);
  position: relative;
}

.page-news .news-entry::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--deep-red), var(--gold));
  transition: width .45s ease;
}

.page-news .news-entry:hover::after,
.page-news .news-entry:focus-within::after {
  width: 100%;
}

.page-news .news-entry details > summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5rem .75rem;
  padding: var(--space-3) var(--space-2);
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: background .2s, padding-left .25s ease;
}

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

.page-news .news-entry details > summary:hover,
.page-news .news-entry details > summary:focus-visible {
  background: rgba(179, 27, 27, .1);
  padding-left: var(--space-3);
  outline: none;
}

.page-news .news-entry details > summary::after {
  content: "+";
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1;
  color: var(--gold);
  margin-left: auto;
  padding-left: .5rem;
  flex-shrink: 0;
  transition: transform .2s;
}

.page-news .news-entry details[open] > summary::after {
  content: "−";
}

.page-news .entry-date {
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--slate);
  min-width: 2.6rem;
}

.page-news .entry-title {
  flex: 1;
  min-width: 200px;
  font-family: var(--font-head);
  font-size: .96rem;
  line-height: 1.4;
  color: var(--cream);
  transition: color .2s;
}

.page-news .news-entry details > summary:hover .entry-title {
  color: var(--gold-light);
}

.page-news .tag {
  font-size: .7rem;
  padding: .2rem .5rem;
  border-radius: 1px;
}

.page-news .entry-summary-inner {
  display: grid;
  gap: var(--space-2);
  padding: 0 var(--space-3) var(--space-3) calc(var(--space-3) + 2.6rem + .5rem);
}

.page-news .entry-summary-inner p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--slate);
  border-left: 1px solid var(--news-line);
  padding-left: var(--space-3);
}

.page-news .entry-media {
  border: 1px solid var(--news-line);
  max-width: 320px;
}

.page-news .entry-media img {
  display: block;
  width: 100%;
  height: auto;
}

/* ===== 功能迭代 ===== */
.page-news .iteration-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-news .timeline {
  position: relative;
  padding-left: var(--space-4);
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(to bottom, var(--deep-red) 0%, var(--gold) 55%, transparent 100%);
}

.page-news .timeline-item {
  position: relative;
  padding-bottom: var(--space-4);
}

.page-news .timeline-item:last-child {
  padding-bottom: 0;
}

.page-news .timeline-marker {
  position: absolute;
  left: calc(-1 * var(--space-4));
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 3px solid var(--deep-red);
  box-shadow: 0 0 0 3px var(--ink), 0 0 8px rgba(179, 27, 27, .5);
}

.page-news .timeline-item:first-child .timeline-marker {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--ink), 0 0 8px rgba(212, 175, 55, .55);
}

.page-news .timeline-version {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--gold);
  border: 1px solid var(--news-gold-line);
  padding: .18rem .55rem;
  margin-bottom: .4rem;
}

.page-news .timeline-body h3 {
  font-family: var(--font-head);
  font-size: 1.02rem;
  color: var(--cream);
  margin: 0 0 .35rem;
}

.page-news .timeline-body p {
  font-size: .88rem;
  line-height: 1.7;
  color: var(--slate);
  margin: 0;
}

.page-news .iteration-visual {
  border: 1px solid var(--news-line);
  padding: .5rem;
  background: var(--ink-2);
}

.page-news .iteration-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .visual-caption {
  font-size: .78rem;
  color: var(--slate);
  text-align: center;
  margin: .6rem 0 .2rem;
  letter-spacing: .06em;
}

/* ===== 站务公告 ===== */
.page-news .announcement-head {
  position: relative;
  margin-bottom: var(--space-4);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), 0 100%);
}

.page-news .announcement-head img {
  display: block;
  width: 100%;
  height: auto;
}

.page-news .announcement-head::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(13, 13, 13, .65) 0%, rgba(13, 13, 13, .1) 100%);
}

.page-news .announcement-head-copy {
  position: absolute;
  left: var(--space-4);
  right: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
}

.page-news .announcement-head-copy p {
  margin: 0;
}

.page-news .announcement-head-copy p:first-child {
  font-size: .76rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .3rem;
}

.page-news .announcement-head-copy p:last-child {
  font-family: var(--font-head);
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--cream);
  text-shadow: 0 2px 8px rgba(0, 0, 0, .55);
  max-width: 34rem;
  line-height: 1.45;
}

.page-news .announcement-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
}

.page-news .panel {
  background: var(--ink-2);
  border-left: 3px solid var(--gold);
  padding: var(--space-3);
  transition: background .2s, transform .2s, box-shadow .2s;
}

.page-news .panel:hover,
.page-news .panel:focus-within {
  background: rgba(179, 27, 27, .08);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-news .panel h3 {
  font-family: var(--font-head);
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--cream);
  margin: 0 0 .45rem;
}

.page-news .panel p {
  font-size: .87rem;
  line-height: 1.7;
  color: var(--slate);
  margin: 0 0 var(--space-2);
}

.page-news .text-link {
  color: var(--gold);
  text-decoration: none;
  font-size: .86rem;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: border-color .2s, color .2s;
}

.page-news .text-link:hover,
.page-news .text-link:focus-visible {
  border-color: var(--gold);
  color: var(--gold-light);
}

/* ===== 平板与桌面 ===== */
@media (min-width: 640px) {
  .page-news .news-featured {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

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

@media (min-width: 680px) {
  .page-news .head-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: end;
    gap: var(--space-5);
  }
}

@media (min-width: 760px) {
  .page-news .iteration-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-news .news-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: var(--space-5);
    align-items: start;
  }

  .page-news .news-sidebar {
    position: sticky;
    top: 2rem;
  }

  .page-news .category-list {
    display: block;
  }

  .page-news .category-list li + li {
    margin-top: .5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news *,
  .page-news *::before,
  .page-news *::after {
    transition: none !important;
    transform: none !important;
  }
}