/* ===== 更新动态页专属 CSS ===== */

.page-news {
  --news-pad: 16px;
  --news-gold-ring: 0 0 0 3px rgba(255, 215, 0, .35);
}

.page-news [hidden] {
  display: none !important;
}

/* 面包屑 */
.page-news .breadcrumb {
  padding: 14px 16px;
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-light-gray);
  font-size: 13px;
}

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

.page-news .breadcrumb a:hover {
  color: var(--color-dark);
  text-decoration: underline;
}

/* ===== Hero 首屏 ===== */
.page-news .news-hero {
  position: relative;
  background: var(--color-dark);
  color: var(--color-cream);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -32px;
  width: 72%;
  height: 72px;
  background: var(--color-orange);
  transform: rotate(-4deg);
  z-index: 2;
  pointer-events: none;
}

.page-news .news-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
}

.page-news .news-hero-copy {
  padding: 36px var(--news-pad) 48px;
  position: relative;
  z-index: 3;
}

.page-news .news-hero-kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--color-gold);
  margin-bottom: 14px;
}

.page-news .news-hero h1 {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 1.05;
  margin: 0 0 16px;
  letter-spacing: .02em;
}

.page-news .news-hero-copy p {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 240, 232, .85);
  max-width: 520px;
  margin: 0 0 20px;
}

.page-news .news-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .hero-meta-item {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(245, 240, 232, .1);
  border: 1px solid rgba(245, 240, 232, .25);
  padding: 6px 12px;
  border-radius: 999px;
}

.page-news .hero-meta-item strong {
  color: var(--color-orange);
  font-weight: 700;
}

.page-news .news-hero-media {
  position: relative;
  z-index: 1;
  order: -1;
}

.page-news .news-hero-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  border-bottom: 4px solid var(--color-orange);
}

/* ===== 主内容区 ===== */
.page-news .news-body {
  padding: 40px var(--news-pad) 56px;
}

.page-news .section {
  margin-top: 48px;
}

.page-news .section-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}

.page-news .section-number {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-cream);
  background: var(--color-dark);
  padding: 10px 12px;
  border: 2px solid var(--color-dark);
  box-shadow: var(--shadow-hard);
  flex-shrink: 0;
}

.page-news .section-header h2 {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.2;
  margin: 0 0 6px;
  color: var(--color-dark);
}

.page-news .section-subtitle {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* ===== 最新公告：左右分屏 ===== */
.page-news .news-latest-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-news .version-card {
  background: var(--color-dark);
  color: var(--color-cream);
  border: 2px solid var(--color-dark);
  box-shadow: var(--shadow-hard);
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.page-news .version-card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 90px;
  height: 90px;
  background: var(--color-gold);
  opacity: .16;
  border-radius: 50%;
}

.page-news .version-icon {
  display: block;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--color-gold);
  box-shadow: var(--news-gold-ring);
  margin: 18px 0 20px;
}

.page-news .version-card h3 {
  font-size: 18px;
  margin: 0 0 14px;
}

.page-news .version-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid rgba(245, 240, 232, .16);
}

.page-news .version-list li {
  font-family: var(--font-mono);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  padding: 10px 2px;
  border-bottom: 1px solid rgba(245, 240, 232, .12);
}

.page-news .version-list span:last-child {
  color: var(--color-gold);
  font-weight: 700;
}

.page-news .version-card .btn {
  border-color: var(--color-gold);
  color: var(--color-gold);
  position: relative;
  z-index: 1;
}

.page-news .version-card .btn:hover {
  background: var(--color-gold);
  color: var(--color-dark);
}

.page-news .latest-list {
  display: grid;
  gap: 16px;
}

.page-news .latest-card {
  padding: 20px;
  border: 2px solid var(--color-dark);
  box-shadow: 4px 4px 0 rgba(10, 25, 47, .9);
  transition: transform .25s ease, box-shadow .25s ease;
}

.page-news .latest-card:hover {
  transform: translateY(-4px);
  box-shadow: 7px 7px 0 rgba(10, 25, 47, .9);
}

.page-news .latest-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.page-news .latest-time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gray);
}

.page-news .latest-card h3 {
  font-size: 18px;
  margin: 0 0 8px;
}

.page-news .latest-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-brown);
  margin: 0 0 16px;
}

/* ===== 筛选区 ===== */
.page-news .filter-area {
  position: relative;
  border: 2px solid var(--color-dark);
  box-shadow: var(--shadow-hard);
  background: var(--color-white);
  padding: 20px;
  overflow: hidden;
}

.page-news .filter-texture {
  position: absolute;
  right: -24px;
  bottom: -14px;
  width: 180px;
  height: auto;
  opacity: .12;
  pointer-events: none;
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.page-news .filter-btn {
  border: 2px solid var(--color-dark);
  background: var(--color-cream);
  color: var(--color-dark);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}

.page-news .filter-btn:hover {
  background: var(--color-orange);
  color: var(--color-white);
}

.page-news .filter-btn.is-active {
  background: var(--color-orange);
  color: var(--color-white);
  box-shadow: 4px 4px 0 var(--color-dark);
}

.page-news .filter-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-gray);
  margin: 14px 0 0;
  position: relative;
  z-index: 1;
}

.page-news .filter-hint span {
  color: var(--color-orange);
  font-weight: 700;
}

/* ===== 时间线 ===== */
.page-news .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-news .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 20px;
  bottom: 20px;
  width: 3px;
  background: linear-gradient(to bottom, var(--color-orange), var(--color-dark));
}

.page-news .timeline-item {
  position: relative;
  padding-left: 32px;
  padding-bottom: 28px;
}

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

.page-news .timeline-node {
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-orange);
  border: 3px solid var(--color-dark);
  box-shadow: 0 0 0 3px var(--color-cream);
}

.page-news .timeline-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.page-news .timeline-date {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-orange);
  letter-spacing: .04em;
}

.page-news .timeline-card {
  border: 2px solid var(--color-dark);
  box-shadow: 4px 4px 0 rgba(10, 25, 47, .9);
  padding: 18px;
  transition: transform .25s ease, box-shadow .25s ease;
}

.page-news .timeline-card:hover {
  transform: translateY(-3px);
  box-shadow: 7px 7px 0 rgba(10, 25, 47, .9);
}

.page-news .timeline-card h3 {
  font-size: 17px;
  margin: 0 0 8px;
}

.page-news .timeline-card p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-brown);
  margin: 0;
}

.page-news .update-details {
  margin-top: 12px;
  border-top: 1px dashed var(--color-light-gray);
  padding-top: 10px;
}

.page-news .update-details summary {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 13px;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.page-news .update-details summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-orange);
  font-size: 15px;
  line-height: 1;
}

.page-news .update-details[open] summary::before {
  content: "–";
}

.page-news .update-details summary:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 2px;
}

.page-news .update-details ul {
  margin: 10px 0 4px;
  padding-left: 18px;
  font-size: 13px;
  color: var(--color-brown);
}

.page-news .update-details li + li {
  margin-top: 6px;
}

/* ===== 历史封面 ===== */
.page-news .history-cover {
  margin-top: 40px;
  border: 2px solid var(--color-dark);
  box-shadow: var(--shadow-hard);
  background: var(--color-dark);
}

.page-news .history-cover img {
  width: 100%;
  height: auto;
  display: block;
  opacity: .85;
}

.page-news .history-cover-caption {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  color: var(--color-cream);
  font-size: 13px;
}

/* ===== 反馈横幅 ===== */
.page-news .feedback-banner {
  margin-top: 48px;
  background: var(--color-dark);
  color: var(--color-cream);
  border: 2px solid var(--color-dark);
  box-shadow: var(--shadow-hard);
  position: relative;
  overflow: hidden;
}

.page-news .feedback-banner::before {
  content: "";
  position: absolute;
  left: -20px;
  top: -30px;
  width: 120px;
  height: 120px;
  background: var(--color-gold);
  opacity: .15;
  border-radius: 50%;
}

.page-news .feedback-banner-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 24px;
  position: relative;
  z-index: 1;
}

.page-news .feedback-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-orange);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(255, 107, 53, .3);
}

.page-news .feedback-banner p {
  flex: 1;
  min-width: 200px;
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
}

.page-news .feedback-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .feedback-banner .btn-outline {
  border-color: rgba(245, 240, 232, .7);
  color: var(--color-cream);
}

.page-news .feedback-banner .btn-outline:hover {
  background: var(--color-cream);
  color: var(--color-dark);
}

/* ===== 桌面端适配 ===== */
@media (min-width: 768px) {
  .page-news .news-hero-grid {
    grid-template-columns: 5fr 7fr;
    min-height: 320px;
  }

  .page-news .news-hero-copy {
    padding: 48px 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-news .news-hero-media {
    order: 1;
  }

  .page-news .news-hero-media img {
    height: 100%;
    min-height: 320px;
    border-bottom: none;
    border-left: 4px solid var(--color-orange);
  }

  .page-news .news-body {
    padding: 48px 24px 80px;
  }

  .page-news .section-header h2 {
    font-size: 32px;
  }

  .page-news .news-latest-layout {
    grid-template-columns: 300px 1fr;
    gap: 32px;
  }

  .page-news .latest-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .page-news .filter-texture {
    width: 260px;
  }
}

@media (min-width: 1100px) {
  .page-news .latest-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-news .timeline {
    max-width: 920px;
    margin-left: 48px;
  }

  .page-news .timeline-item {
    padding-left: 48px;
  }

  .page-news .timeline::before {
    left: 14px;
  }

  .page-news .timeline-node {
    left: 6px;
    width: 20px;
    height: 20px;
  }

  .page-news .timeline-card {
    padding: 22px;
  }

  .page-news .feedback-banner-inner {
    padding: 28px 32px;
  }
}