.page-news {
  overflow-x: hidden;
  background: var(--white);
  color: var(--ink);
}

.page-news img {
  max-width: 100%;
}

/* ===== Hero 首屏 ===== */
.page-news .news-hero {
  position: relative;
  padding: 3rem 0 2.5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--grey-200);
  background: linear-gradient(135deg, var(--green-dim) 0%, rgba(255, 255, 255, 0) 50%);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 48%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, transparent 50%, var(--green-dim) 50%, var(--green-dim) 100%);
  z-index: 0;
}

.page-news .news-hero > * {
  position: relative;
  z-index: 1;
}

.page-news .news-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.7rem, 5vw, 3rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0.75rem 0 1rem;
  max-width: 48rem;
}

.page-news .news-hero-lede {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--grey-700);
  max-width: 42rem;
  margin-bottom: 1.5rem;
}

.page-news .hero-scroll {
  margin-top: 0.25rem;
}

/* ===== 分类筛选 ===== */
.page-news .news-filter {
  padding: 3rem 0 2.5rem;
}

.page-news .filter-heading-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-news .filter-heading-row h2,
.page-news .monthly-record h2,
.page-news .flow-panel h2,
.page-news .announce-banner h2,
.page-news .related-links h2 {
  font-family: var(--font-head);
  font-weight: 800;
  margin: 0.25rem 0 0;
}

.page-news .filter-heading-row h2 {
  font-size: 1.5rem;
}

.page-news .filter-tip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--grey-500);
  margin: 0;
}

.page-news .filter-radio {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  white-space: nowrap;
  border: 0;
}

.page-news .filter-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.page-news .filter-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.55rem 1rem;
  border: 1px solid var(--grey-200);
  background: var(--white);
  color: var(--grey-700);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.page-news .filter-label:hover {
  border-color: var(--green);
  color: var(--green);
}

.page-news #filter-all:checked ~ .filter-controls label[for="filter-all"],
.page-news #filter-version:checked ~ .filter-controls label[for="filter-version"],
.page-news #filter-upgrade:checked ~ .filter-controls label[for="filter-upgrade"],
.page-news #filter-announce:checked ~ .filter-controls label[for="filter-announce"],
.page-news #filter-tips:checked ~ .filter-controls label[for="filter-tips"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(30, 140, 90, 0.18);
}

.page-news #filter-all:focus-visible ~ .filter-controls label[for="filter-all"],
.page-news #filter-version:focus-visible ~ .filter-controls label[for="filter-version"],
.page-news #filter-upgrade:focus-visible ~ .filter-controls label[for="filter-upgrade"],
.page-news #filter-announce:focus-visible ~ .filter-controls label[for="filter-announce"],
.page-news #filter-tips:focus-visible ~ .filter-controls label[for="filter-tips"] {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ===== 文章列表 ===== */
.page-news .news-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-news .news-card {
  display: none;
  background: var(--white);
  border: 1px solid var(--grey-200);
  border-top: 3px solid var(--green);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.page-news #filter-all:checked ~ .news-list .news-card,
.page-news #filter-version:checked ~ .news-list .card-version,
.page-news #filter-upgrade:checked ~ .news-list .card-upgrade,
.page-news #filter-announce:checked ~ .news-list .card-announce,
.page-news #filter-tips:checked ~ .news-list .card-tips {
  display: block;
}

.page-news .news-card:hover {
  border-color: var(--green);
  box-shadow: 0 10px 24px rgba(30, 140, 90, 0.08);
}

.page-news .news-card-image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-news .news-card-body {
  padding: 1.25rem 1.25rem 1.5rem;
}

.page-news .news-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
}

.page-news .news-card h2 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  line-height: 1.4;
  margin: 0 0 0.5rem;
}

.page-news .news-card h2 a {
  color: var(--ink-soft);
  text-decoration: none;
  background-image: linear-gradient(90deg, var(--green) 0, var(--green) 100%);
  background-repeat: no-repeat;
  background-size: 0 2px;
  background-position: left calc(100% - 1px);
  transition: background-size 0.3s ease, color 0.3s ease;
}

.page-news .news-card h2 a:hover {
  color: var(--green);
  background-size: 100% 2px;
}

.page-news .news-card-summary {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--grey-700);
  margin: 0 0 1rem;
}

/* ===== 详情展开 ===== */
.page-news .news-details {
  border-top: 1px solid var(--grey-200);
  padding-top: 0.75rem;
}

.page-news .news-details summary {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--green);
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition);
}

.page-news .news-details summary:hover {
  color: var(--blue);
}

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

.page-news .news-details summary::before {
  content: "+";
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  line-height: 1.2;
  text-align: center;
  background: var(--green-dim);
  color: var(--green);
  font-weight: 800;
  border-radius: 2px;
  transition: transform var(--transition), background var(--transition);
}

.page-news .news-details[open] summary::before {
  transform: rotate(45deg);
  background: var(--gold-soft);
  color: var(--gold);
}

.page-news .news-detail-content {
  margin-top: 0.8rem;
  padding-left: 1.75rem;
  border-left: 2px solid var(--green-dim);
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--grey-700);
}

.page-news .news-detail-content p {
  margin: 0 0 0.5rem;
}

.page-news .news-detail-content a {
  color: var(--green);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--green);
}

.page-news .news-detail-content a:hover {
  color: var(--blue);
  border-color: var(--blue);
}

/* ===== 月度适配记录 ===== */
.page-news .monthly-record {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 3rem 0;
  margin: 1rem 0 0;
  border-top: 1px solid var(--grey-200);
  border-bottom: 1px solid var(--grey-200);
}

.page-news .monthly-record-content h2 {
  font-size: 1.5rem;
}

.page-news .monthly-lead {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--grey-700);
  max-width: 40rem;
  margin: 0.75rem 0 0;
}

.page-news .record-timeline {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
}

.page-news .record-item {
  display: flex;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px dashed var(--grey-200);
}

.page-news .record-item:last-child {
  border-bottom: none;
}

.page-news .record-item .step-index {
  flex: 0 0 2.5rem;
  width: 2.5rem;
  height: 2.5rem;
  font-size: 0.85rem;
}

.page-news .record-item-text h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
}

.page-news .record-item-text p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--grey-500);
  margin: 0;
}

.page-news .monthly-btn {
  margin-top: 1.5rem;
}

.page-news .monthly-image {
  margin: 0;
}

.page-news .monthly-image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  border: 1px solid var(--grey-200);
}

.page-news .monthly-image figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--grey-500);
  margin-top: 0.5rem;
}

/* ===== 发布流程面板 ===== */
.page-news .flow-panel {
  grid-column: 1 / -1;
  background:
    linear-gradient(135deg, rgba(212, 160, 23, 0.08) 0%, transparent 40%),
    var(--blue-deep);
  color: var(--white);
  padding: 2rem 1.5rem;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 1.25rem) 0, 100% 1.25rem, 100% 100%, 0 100%);
}

.page-news .flow-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-news .flow-panel h2 {
  font-size: 1.3rem;
}

.page-news .flow-panel .section-label {
  color: var(--gold);
}

.page-news .flow-panel-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

.page-news .flow-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  counter-reset: flow-step;
}

.page-news .flow-steps li {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  background: rgba(212, 160, 23, 0.14);
  color: var(--white);
  padding: 0.6rem 1rem 0.6rem 0.9rem;
  border: 1px solid rgba(212, 160, 23, 0.3);
}

.page-news .flow-steps li::before {
  counter-increment: flow-step;
  content: "N-" counter(flow-step);
  color: var(--gold);
  font-weight: 800;
  margin-right: 0.5rem;
}

/* ===== 公告横幅 ===== */
.page-news .announce-banner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 2.5rem 0;
  padding: 2rem 1.5rem;
  background: linear-gradient(120deg, var(--green-dim) 0%, var(--white) 75%);
  border-left: 6px solid var(--green);
}

.page-news .announce-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 1rem), calc(100% - 1rem) 100%, 0 100%);
}

.page-news .announce-banner-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-news .announce-banner h2 {
  font-size: 1.35rem;
}

.page-news .announce-banner p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--grey-700);
  margin: 0.75rem 0 1.25rem;
}

/* ===== 相关入口 ===== */
.page-news .related-links {
  padding: 2rem 0 1rem;
}

.page-news .related-links h2 {
  font-size: 1.4rem;
  margin-bottom: 1.25rem;
}

.page-news .related-links-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-news .related-link-card {
  border: 1px solid var(--grey-200);
  border-bottom: 3px solid var(--grey-200);
  padding: 1.5rem;
  display: block;
  text-decoration: none;
  color: var(--ink-soft);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.page-news .related-link-card:hover {
  transform: translateY(-4px);
  border-color: var(--green);
  border-bottom-color: var(--green);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.08);
}

.page-news .related-link-card .meta-index {
  display: block;
  margin-bottom: 0.6rem;
}

.page-news .related-link-card h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  margin: 0 0 0.4rem;
}

.page-news .related-link-card p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--grey-500);
  margin: 0;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-news .news-list {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem;
  }

  .page-news .monthly-record {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 2.5rem;
  }

  .page-news .announce-banner {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: center;
    padding: 2.25rem 2.5rem;
  }

  .page-news .related-links-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

@media (min-width: 1024px) {
  .page-news .news-hero {
    padding: 4rem 0 3rem;
  }

  .page-news .news-filter {
    padding: 3.5rem 0 3rem;
  }

  .page-news .monthly-record {
    gap: 3rem;
    padding: 4rem 0;
  }

  .page-news .flow-panel {
    padding: 2.5rem;
  }
}