.page-news {
  --news-gap: 20px;
  --news-radius: 6px;
  position: relative;
}

/* ===== Hero 首屏信息带 ===== */
.page-news__hero {
  position: relative;
  padding: 28px 20px 36px;
  background:
    linear-gradient(135deg, rgba(57, 255, 20, 0.09) 0%, transparent 44%),
    linear-gradient(45deg, var(--color-deep) 0%, var(--color-dark) 100%);
  border-bottom: 1px solid rgba(57, 255, 20, 0.28);
  overflow: hidden;
}

.page-news__hero::after {
  content: "";
  position: absolute;
  inset-inline-end: -50px;
  top: 0;
  bottom: 0;
  width: 190px;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0 8px,
    rgba(57, 255, 20, 0.14) 8px 10px
  );
  clip-path: polygon(48% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-news__hero-grid {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.page-news__hero-copy h1 {
  margin: 16px 0 10px;
  font-family: var(--font-head);
  font-size: clamp(26px, 6vw, 44px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--color-beige);
}

.page-news__hero-copy p {
  max-width: 660px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--color-grey);
}

.page-news__hero-note {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(57, 255, 20, 0.07);
  border: 1px solid rgba(57, 255, 20, 0.22);
  border-left: 4px solid var(--color-neon);
}

.page-news__note-label {
  font-family: var(--font-head);
  font-size: 12.5px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-neon);
}

.page-news__hero-note dl {
  display: grid;
  gap: 6px;
  margin: 0;
}

.page-news__hero-note dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
}

.page-news__hero-note dt {
  color: var(--color-grey);
  font-weight: 400;
}

.page-news__hero-note dd {
  margin: 0;
  font-family: var(--font-num);
  font-size: 13.5px;
  color: var(--color-beige);
}

/* ===== 主体布局 ===== */
.page-news__layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 16px 48px;
  display: grid;
  gap: 26px;
}

/* ===== 左侧栏 ===== */
.page-news__sidebar {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-news__sidebar section {
  background: var(--color-beige);
  border-radius: var(--news-radius);
  padding: 18px 16px;
  box-shadow: 0 1px 0 rgba(6, 16, 33, 0.07);
}

.page-news__sidebar h2 {
  margin: 0 0 14px;
  padding-left: 10px;
  border-left: 4px solid var(--color-neon);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: var(--color-dark);
}

.page-news__filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news__filter-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--color-deep);
  background: transparent;
  border-radius: 999px;
  padding: 6px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-deep);
  cursor: pointer;
  transition: background-color 0.18s, color 0.18s, border-color 0.18s, transform 0.18s var(--ease-power);
}

.page-news__filter-btn:hover,
.page-news__filter-btn.is-active {
  background: var(--color-deep);
  color: var(--color-neon);
  border-color: var(--color-deep);
  transform: translateY(-1px);
}

.page-news__filter-count {
  font-family: var(--font-num);
  font-size: 11px;
  line-height: 1;
  background: rgba(57, 255, 20, 0.2);
  padding: 2px 6px;
  border-radius: 20px;
  color: var(--color-dark);
}

.page-news__filter-btn.is-active .page-news__filter-count {
  background: var(--color-neon);
  color: var(--color-dark);
}

.page-news__filter-btn--gold:hover,
.page-news__filter-btn--gold.is-active {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-dark);
}

.page-news__filter-btn--moss:hover,
.page-news__filter-btn--moss.is-active {
  background: var(--color-moss);
  border-color: var(--color-moss);
  color: var(--color-dark);
}

.page-news__filter-btn--clay:hover,
.page-news__filter-btn--clay.is-active {
  background: var(--color-clay);
  border-color: var(--color-clay);
  color: var(--color-dark);
}

.page-news__filter-btn--neon:hover,
.page-news__filter-btn--neon.is-active {
  background: var(--color-neon);
  border-color: var(--color-neon);
  color: var(--color-dark);
}

/* 热门标签 */
.page-news__tag-pool {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-news__tag {
  display: inline-flex;
  padding: 4px 10px;
  border: 1px solid rgba(11, 29, 58, 0.3);
  border-radius: 3px;
  background: #fff;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-deep);
  text-decoration: none;
  transition: background-color 0.16s, color 0.16s, border-color 0.16s, transform 0.16s var(--ease-power);
}

.page-news__tag:hover {
  background: var(--color-dark);
  border-color: var(--color-dark);
  color: var(--color-neon);
  transform: translateY(-2px);
}

/* 站内直达 */
.page-news__side-note p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.7;
  color: #54565C;
}

.page-news__side-note .btn {
  display: block;
  width: 100%;
  margin-bottom: 8px;
}

/* ===== 新闻流 ===== */
.page-news__stream {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  align-items: start;
}

.page-news__stream-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 6px;
  border-bottom: 2px solid rgba(11, 29, 58, 0.18);
}

.page-news__stream-head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--color-dark);
  position: relative;
  padding-left: 14px;
}

.page-news__stream-head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 6px;
  background: var(--color-neon);
  transform: skewX(-14deg);
}

.page-news__stream-tip {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--color-grey);
  white-space: nowrap;
}

/* ===== 新闻卡通用 ===== */
.news-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  background: var(--color-beige);
  border-radius: var(--news-radius);
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(6, 16, 33, 0.08);
  transition: transform 0.22s var(--ease-power), box-shadow 0.22s;
}

.news-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(6, 16, 33, 0.13);
}

.news-card__body {
  padding: 18px 20px 20px;
  display: grid;
  align-content: start;
  gap: 10px;
}

.news-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.news-card__cat {
  display: inline-flex;
  padding: 2px 8px;
  border: 1px solid;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.news-card__cat--moss {
  color: var(--color-moss);
  border-color: rgba(94, 140, 97, 0.55);
  background: rgba(94, 140, 97, 0.1);
}

.news-card__cat--clay {
  color: var(--color-clay);
  border-color: rgba(183, 110, 121, 0.55);
  background: rgba(183, 110, 121, 0.1);
}

.news-card__cat--gold {
  color: #a98c2a;
  border-color: rgba(255, 215, 0, 0.6);
  background: rgba(255, 215, 0, 0.14);
}

.news-card__cat--neon {
  color: var(--color-deep);
  border-color: rgba(57, 255, 20, 0.65);
  background: rgba(57, 255, 20, 0.18);
}

.news-card__time {
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--color-grey);
}

.news-card__badge {
  padding: 2px 8px;
  border-radius: 2px;
  background: var(--color-dark);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--color-neon);
}

.news-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--color-dark);
}

.news-card__excerpt {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: #44464D;
}

.news-card__link {
  display: inline-flex;
  width: fit-content;
  gap: 4px;
  border-bottom: 2px solid var(--color-neon);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-deep);
  text-decoration: none;
  transition: color 0.18s, border-color 0.18s;
}

.news-card__link:hover {
  border-bottom-color: var(--color-clay);
  color: var(--color-clay);
}

.news-card__stat {
  display: flex;
  gap: 26px;
  margin: 6px 0 0;
  padding: 12px 14px;
  border-radius: 4px;
  background: var(--color-dark);
  list-style: none;
}

.news-card__stat li {
  display: grid;
  gap: 3px;
}

.news-card__stat-num {
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--color-neon);
}

.news-card__stat-label {
  font-size: 11px;
  line-height: 1.2;
  color: var(--color-grey);
}

/* ===== 最新大卡 ===== */
.news-card--featured {
  border-left: 6px solid var(--color-neon);
}

.news-card--featured .news-card__media {
  position: relative;
  overflow: hidden;
}

.news-card--featured .news-card__media::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 90px;
  height: 90px;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0 6px,
    rgba(57, 255, 20, 0.4) 6px 8px
  );
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.news-card--featured img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.news-card--featured h3 {
  font-size: clamp(20px, 4.5vw, 28px);
  line-height: 1.26;
}

/* ===== 带图卡片 ===== */
.news-card--with-img img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 240px;
  object-fit: cover;
}

/* ===== 纯文本卡片 ===== */
.news-card--text {
  border-left: 4px solid transparent;
}

.news-card--text--gold {
  border-left-color: var(--color-gold);
}

.news-card--text--clay {
  border-left-color: var(--color-clay);
}

/* ===== 流末尾 ===== */
.page-news__stream-end {
  padding: 22px 0 6px;
  text-align: center;
  display: grid;
  gap: 10px;
  justify-items: center;
}

.page-news__stream-line {
  display: block;
  width: 72px;
  height: 5px;
  background: repeating-linear-gradient(
    90deg,
    var(--color-neon) 0 14px,
    var(--color-gold) 14px 28px,
    transparent 28px 36px
  );
}

.page-news__stream-end p {
  margin: 0;
  font-size: 12.5px;
  color: var(--color-grey);
}

/* ===== 移动端优先断点（≥ 720px）===== */
@media (min-width: 720px) {
  .page-news__hero {
    padding: 36px 28px 42px;
  }

  .page-news__hero-grid {
    grid-template-columns: 1.6fr 0.9fr;
    align-items: end;
  }

  .page-news__hero-note {
    margin-bottom: 4px;
  }

  .page-news__layout {
    padding: 32px 24px 56px;
    gap: 28px;
  }

  .page-news__stream {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-news__stream-head {
    grid-column: 1 / -1;
  }

  .news-card--featured {
    grid-column: 1 / -1;
    grid-template-columns: 1.05fr 1fr;
    align-items: stretch;
  }

  .news-card--featured .news-card__media img {
    height: 100%;
    min-height: 280px;
    object-fit: cover;
  }

  .news-card--featured .news-card__body {
    padding: 24px 26px 24px 22px;
  }

  .news-card--featured h3 {
    font-size: 25px;
  }

  .news-card--with-img img {
    max-height: 230px;
  }

  .news-card--wide {
    grid-column: 1 / -1;
  }
}

/* ===== 桌面端布局（≥ 1024px）===== */
@media (min-width: 1024px) {
  .page-news__hero {
    padding: 40px 32px 48px;
  }

  .page-news__hero-copy h1 {
    font-size: 44px;
    max-width: 760px;
  }

  .page-news__layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 36px;
    align-items: start;
    padding-top: 36px;
  }

  .page-news__sidebar {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-news__stream {
    gap: 24px;
  }

  .news-card--featured h3 {
    font-size: 28px;
  }
}

/* ===== 宽桌面优化（≥ 1240px）===== */
@media (min-width: 1240px) {
  .page-news__hero-grid {
    grid-template-columns: 1.7fr 0.8fr;
  }

  .page-news__layout {
    padding-left: 8px;
    padding-right: 8px;
  }
}