.page-news {
  --news-line: rgba(26, 26, 26, 0.1);
  --news-gold-grad: linear-gradient(90deg, var(--c-gold), transparent);
  background: var(--c-ivory);
  color: var(--c-charcoal);
  font-family: var(--font-sans);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-news .container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
  position: relative;
}

/* Hero */
.page-news .news-hero {
  position: relative;
  background: linear-gradient(120deg, var(--c-violet-dark) 0%, var(--c-primary) 62%, var(--c-primary-light) 100%);
  color: var(--c-ivory);
  padding: calc(var(--header-h) + var(--space-5)) 0 var(--space-5);
  overflow: hidden;
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(500px) rotateX(12deg);
  transform-origin: center top;
  pointer-events: none;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 48%;
  height: 100%;
  background: linear-gradient(115deg, transparent 40%, rgba(212, 175, 55, 0.16) 100%);
  pointer-events: none;
}

.page-news .news-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-news .news-hero__main {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__breadcrumb {
  margin-bottom: var(--space-4);
  font-size: var(--fs-small);
  color: rgba(255, 255, 240, 0.75);
}

.page-news .news-hero__breadcrumb a {
  color: var(--c-gold-light);
  text-decoration: none;
  transition: color var(--transition);
}

.page-news .news-hero__breadcrumb a:hover {
  text-decoration: underline;
  color: var(--c-gold);
}

.page-news .news-hero__breadcrumb .breadcrumb__sep {
  margin: 0 0.5em;
  color: rgba(255, 255, 240, 0.5);
}

.page-news .news-hero__index {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-2);
}

.page-news .news-hero__title {
  font-family: var(--font-serif);
  font-weight: 200;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.15;
  margin: 0 0 var(--space-3);
  letter-spacing: 0.02em;
}

.page-news .news-hero__divider {
  width: 88px;
  height: 2px;
  background: var(--c-gold);
  margin-bottom: var(--space-4);
}

.page-news .news-hero__lead {
  font-size: 1rem;
  color: rgba(255, 255, 240, 0.88);
  max-width: 52em;
  margin-bottom: var(--space-5);
}

.page-news .news-hero__aside {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__card {
  background: rgba(43, 21, 64, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-glass);
}

.page-news .news-hero__card-title {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid rgba(255, 255, 240, 0.18);
}

.page-news .news-hero__list {
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.page-news .news-hero__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: var(--fs-small);
}

.page-news .news-hero__item dt {
  color: rgba(255, 255, 240, 0.72);
}

.page-news .news-hero__item dd {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--c-gold-light);
  margin: 0;
}

/* Section Header 通用 */
.page-news .section-header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2) var(--space-3);
  align-items: center;
  margin: var(--space-6) 0 var(--space-4);
}

.page-news .section-header .section-index {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  color: var(--c-gold);
  background: var(--c-primary);
  padding: 0.25em 0.9em;
  border-radius: 999px;
}

.page-news .section-header .section-title {
  font-family: var(--font-serif);
  font-weight: 200;
  font-size: var(--fs-h2);
  margin: 0;
  line-height: 1.2;
}

.page-news .section-header .section-note {
  grid-column: 1 / -1;
  margin: 0;
  font-size: var(--fs-small);
  color: #777;
}

/* 分类区 */
.page-news .news-categories {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-news .news-categories__label {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
  background: var(--c-primary);
  padding: 0.45em 1em;
  border-radius: 999px;
  white-space: nowrap;
}

.page-news .news-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.page-news .news-filter__bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.page-news .news-filter__label {
  display: inline-block;
  padding: 0.45em 1.1em;
  border: 1px solid rgba(91, 45, 110, 0.28);
  border-radius: 999px;
  font-size: var(--fs-small);
  color: var(--c-primary);
  background: var(--c-ivory);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  user-select: none;
}

.page-news .news-filter__label:hover {
  border-color: var(--c-primary);
}

.page-news #filter-all:checked~.news-filter__bar label[for="filter-all"],
.page-news #filter-version:checked~.news-filter__bar label[for="filter-version"],
.page-news #filter-feature:checked~.news-filter__bar label[for="filter-feature"],
.page-news #filter-event:checked~.news-filter__bar label[for="filter-event"],
.page-news #filter-trend:checked~.news-filter__bar label[for="filter-trend"] {
  background: var(--c-primary);
  color: var(--c-ivory);
  border-color: var(--c-primary);
  box-shadow: 0 4px 14px rgba(91, 45, 110, 0.3);
}

.page-news #filter-version:checked~.news-list .news-item:not(.cat-version),
.page-news #filter-feature:checked~.news-list .news-item:not(.cat-feature),
.page-news #filter-event:checked~.news-list .news-item:not(.cat-event),
.page-news #filter-trend:checked~.news-list .news-item:not(.cat-trend) {
  display: none;
}

/* 新闻列表 */
.page-news .news-list {
  border-top: 2px solid var(--c-charcoal);
}

.page-news .news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--news-line);
}

.page-news .news-item__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  color: var(--c-primary);
  border-left: 3px solid var(--c-gold);
  padding-left: var(--space-2);
  text-transform: uppercase;
  line-height: 1.4;
  margin-top: 0.3rem;
}

.page-news .news-item__line {
  display: none;
}

.page-news .news-item__body {
  min-width: 0;
}

.page-news .news-item__meta {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: #999;
  margin-bottom: var(--space-1);
  letter-spacing: 0.06em;
}

.page-news .news-item__time {
  color: var(--c-gold);
  font-weight: 700;
}

.page-news .news-item__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 var(--space-2);
}

.page-news .news-item__title a {
  color: var(--c-charcoal);
  text-decoration: none;
  transition: color var(--transition);
}

.page-news .news-item__title a:hover {
  color: var(--c-primary);
}

.page-news .news-item__summary {
  margin: 0;
  font-size: 0.95rem;
  color: #555;
}

.page-news .news-item__media {
  margin-top: var(--space-2);
}

.page-news .news-item__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* 专题系列 */
.page-news .news-series {
  margin-top: var(--space-2);
  padding: var(--space-5) 0 var(--space-6);
  background: linear-gradient(180deg, var(--c-ivory) 0%, var(--c-gray) 30%, var(--c-gray) 100%);
}

.page-news .news-series .section-header {
  margin-top: var(--space-4);
}

.page-news .series-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  background: var(--c-ivory);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-glass);
}

.page-news .series-intro__image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

.page-news .series-intro__text h3 {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  margin: 0 0 var(--space-2);
}

.page-news .series-intro__text p {
  margin: 0;
  color: #555;
}

.page-news .series-card {
  background: var(--c-ivory);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(43, 21, 64, 0.06);
}

.page-news .series-card summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  cursor: pointer;
  background: var(--c-gray);
  transition: background var(--transition);
}

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

.page-news .series-card summary:hover {
  background: var(--c-gray-deep);
}

.page-news .series-card[open] summary {
  border-bottom: 1px solid var(--news-line);
}

.page-news .series-card summary::after {
  content: "−";
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--c-primary);
  font-size: 1.3rem;
  flex-shrink: 0;
  line-height: 1;
}

.page-news .series-card:not([open]) summary::after {
  content: "+";
}

.page-news .series-card__index {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  background: var(--c-primary);
  color: var(--c-gold);
  padding: 0.35em 0.9em;
  border-radius: 999px;
  white-space: nowrap;
}

.page-news .series-card__title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0;
}

.page-news .series-card__content {
  padding: var(--space-4);
}

.page-news .series-card__content p {
  margin-top: 0;
  color: #555;
}

.page-news .series-card__content img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: var(--space-3) 0;
}

.page-news .series-card__content .btn {
  margin-top: var(--space-2);
}

.page-news .series-more {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: linear-gradient(120deg, var(--c-green) 0%, var(--c-green-light) 100%);
  color: var(--c-ivory);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
}

.page-news .series-more p {
  margin: 0;
  font-size: var(--fs-small);
  color: rgba(255, 255, 240, 0.85);
}

.page-news .series-more .btn {
  align-self: flex-start;
}

/* 大于等于 768px 的响应式增强 */
@media (min-width: 768px) {
  .page-news .news-hero {
    padding: calc(var(--header-h) + var(--space-6)) 0 var(--space-6);
  }

  .page-news .news-hero__inner {
    grid-template-columns: 2fr 1fr;
    gap: var(--space-5);
  }

  .page-news .news-hero__aside {
    margin-top: var(--space-6);
  }

  .page-news .news-filter__bar {
    gap: var(--space-3);
  }

  .page-news .news-item {
    grid-template-columns: 140px 1px 1fr;
    gap: var(--space-4);
    padding: var(--space-5) 0;
  }

  .page-news .news-item__line {
    display: block;
    width: 1px;
    background: linear-gradient(to bottom, var(--c-gold) 0%, rgba(212, 175, 55, 0.15) 100%);
  }

  .page-news .news-item--featured {
    grid-template-columns: 140px 1px 1fr 320px;
  }

  .page-news .news-item--featured .news-item__media {
    grid-column: 4;
    grid-row: 1;
    margin-top: 0;
  }

  .page-news .news-item--featured .news-item__media img {
    height: 100%;
    min-height: 200px;
    max-height: 300px;
    object-fit: cover;
  }

  .page-news .series-intro {
    grid-template-columns: 1.1fr 1fr;
    align-items: center;
    padding: var(--space-5);
  }

  .page-news .series-card summary {
    padding: var(--space-4) var(--space-5);
  }

  .page-news .series-card__content {
    padding: var(--space-4) var(--space-5) var(--space-5);
  }

  .page-news .series-more {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
  }

  .page-news .series-more p {
    max-width: 42em;
  }
}

/* 大于等于 1024px 的桌面增强 */
@media (min-width: 1024px) {
  .page-news .news-hero__title {
    font-size: clamp(2.8rem, 5vw, 4.4rem);
  }

  .page-news .news-hero__lead {
    max-width: 38em;
  }

  .page-news .news-item__title {
    font-size: 1.5rem;
  }

  .page-news .news-item--featured {
    grid-template-columns: 140px 1px 1fr 360px;
  }

  .page-news .series-card__title {
    font-size: 1.15rem;
  }

  .page-news .section-header {
    grid-template-columns: auto 1fr auto;
  }

  .page-news .section-header .section-note {
    grid-column: auto;
    text-align: right;
    max-width: 32em;
  }
}