.page-news {
  --news-list-rule: rgba(255, 255, 255, 0.13);
}

.page-news .news-crumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-news .breadcrumb {
  margin-bottom: 14px;
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 220px;
  height: 220px;
  border-radius: 44% 56% 62% 38% / 52% 46% 54% 48%;
  background: radial-gradient(circle at 40% 40%, rgba(0, 224, 138, 0.16), rgba(0, 224, 138, 0) 70%);
  pointer-events: none;
}

.page-news .news-hero__grid {
  display: grid;
  gap: 22px;
  margin-top: 16px;
}

.page-news .news-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(26px, 7vw, 44px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-news .news-hero__intro {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.76);
}

.page-news .news-hero__meta {
  border-left: 2px solid var(--signal);
  padding-left: 14px;
}

.page-news .news-hero__meta-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-news .news-hero__meta-value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 44px;
  line-height: 1;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}

.page-news .news-hero__meta-note {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

.page-news .news-hero__index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 26px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.page-news .news-hero__index a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cream);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 224, 138, 0.5);
  padding-bottom: 2px;
  transition: color 160ms ease-out, border-color 160ms ease-out;
}

.page-news .news-hero__index a:hover,
.page-news .news-hero__index a:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

/* ---------- 栏目头图 ---------- */

.page-news .news-banner {
  margin: var(--panel-gap) 0 0;
  aspect-ratio: 18 / 7;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--navy-2);
}

.page-news .news-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

/* ---------- 目录与筛选 ---------- */

.page-news .news-index__layout {
  display: grid;
  gap: 20px;
  margin-top: 22px;
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.page-news .news-filter__chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 16px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.26);
  background: transparent;
  cursor: pointer;
  clip-path: polygon(11px 0, 100% 0, 100% calc(100% - 11px), calc(100% - 11px) 100%, 0 100%, 0 11px);
  transition: color 160ms ease-out, border-color 160ms ease-out, background-color 160ms ease-out;
}

.page-news .news-filter__chip:hover {
  border-color: rgba(0, 224, 138, 0.7);
  color: var(--white);
}

.page-news .news-filter__input:checked + .news-filter__chip {
  color: var(--signal);
  border-color: var(--signal);
  background: rgba(0, 224, 138, 0.12);
}

.page-news .news-filter__input:focus-visible + .news-filter__chip {
  outline: 2px solid var(--referee);
  outline-offset: 2px;
}

.page-news .news-filter__hint {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 条目列表 ---------- */

.page-news .news-entries {
  border-bottom: 1px solid var(--news-list-rule);
}

.page-news .entry {
  position: relative;
  display: block;
  border-top: 1px solid var(--news-list-rule);
}

.page-news .entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  background: var(--slate);
}

.page-news .entry--rule::before { background: var(--referee); }
.page-news .entry--method::before { background: var(--ice); }
.page-news .entry--image::before { background: var(--molten); }
.page-news .entry--platform::before { background: var(--signal); }
.page-news .entry--venue::before { background: var(--slate); }
.page-news .entry--team::before { background: var(--white); }

.page-news .entry__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 12px;
  padding: 18px 14px 18px 16px;
  cursor: pointer;
  list-style: none;
}

.page-news .entry__summary::-webkit-details-marker { display: none; }
.page-news .entry__summary::marker { content: ""; }

.page-news .entry__tag {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  white-space: nowrap;
  color: var(--slate);
}

.page-news .entry--rule .entry__tag { color: var(--referee); }
.page-news .entry--method .entry__tag { color: var(--ice); }
.page-news .entry--image .entry__tag { color: var(--molten); }
.page-news .entry--platform .entry__tag { color: var(--signal); }
.page-news .entry--venue .entry__tag { color: var(--slate); }
.page-news .entry--team .entry__tag { color: rgba(255, 255, 255, 0.9); }

.page-news .entry__title {
  grid-column: 1 / -1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--white);
  transition: letter-spacing 220ms ease-out, color 180ms ease-out;
}

.page-news .entry__summary:hover .entry__title,
.page-news .entry__summary:focus-visible .entry__title {
  color: var(--signal);
}

.page-news .entry[open] .entry__title {
  letter-spacing: 0.01em;
  color: var(--signal);
}

.page-news .entry__phase {
  grid-column: 2;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--slate);
  white-space: nowrap;
}

.page-news .entry__body {
  padding: 0 14px 22px 16px;
}

.page-news .entry[open] .entry__body {
  animation: newsBodyIn 220ms ease-out both;
}

@keyframes newsBodyIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: none; }
}

.page-news .entry__excerpt {
  margin: 0;
  max-width: 46em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.74);
}

.page-news .entry__note {
  margin: 10px 0 0;
  max-width: 46em;
  font-size: 13px;
  line-height: 1.78;
  color: var(--slate);
}

.page-news .entry__note a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 224, 138, 0.45);
}

.page-news .entry__note a:hover {
  border-color: var(--signal);
}

.page-news .entry__figure {
  margin: 14px 0 0;
  max-width: 400px;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--navy);
}

.page-news .entry__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

/* 纯 CSS 叠加筛选：未勾选任何标签时全部可见 */
.page-news .news-index__layout:has(.news-filter__input:checked) .entry { display: none; }
.page-news .news-index__layout:has(#f-rule:checked) .entry--rule { display: block; }
.page-news .news-index__layout:has(#f-method:checked) .entry--method { display: block; }
.page-news .news-index__layout:has(#f-image:checked) .entry--image { display: block; }
.page-news .news-index__layout:has(#f-platform:checked) .entry--platform { display: block; }
.page-news .news-index__layout:has(#f-venue:checked) .entry--venue { display: block; }
.page-news .news-index__layout:has(#f-team:checked) .entry--team { display: block; }

/* ---------- 专题系列 ---------- */

.page-news .news-series__rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 80%;
  gap: 14px;
  margin-top: 22px;
  padding-bottom: 10px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
}

.page-news .news-series__card {
  scroll-snap-align: start;
  padding: 22px 18px;
  background: var(--navy-2);
  border: 1px solid rgba(0, 224, 138, 0.28);
}

.page-news .news-series__step {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.page-news .news-series__name {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--white);
}

.page-news .news-series__text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.72);
}

.page-news .news-series__time {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--referee);
}

/* ---------- 纠错与投稿 ---------- */

.page-news .news-correction__grid {
  display: grid;
  gap: 24px;
  margin-top: 20px;
}

.page-news .news-correction__lead {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-news .news-template {
  margin: 16px 0 0;
  padding: 14px 16px;
  background: var(--navy);
  border: 1px solid rgba(0, 224, 138, 0.4);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--signal);
  word-break: break-word;
  user-select: all;
}

.page-news .news-correction__note {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

.page-news .news-correction__note a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--molten);
}

.page-news .news-correction__note a:hover {
  color: var(--molten);
}

.page-news .news-correction .btn {
  margin-top: 18px;
}

.page-news .news-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(26, 21, 18, 0.14);
}

.page-news .news-contact li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(26, 21, 18, 0.14);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-news .news-contact__key {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1fr) 210px;
    gap: 34px;
    align-items: start;
  }

  .page-news .news-hero__meta {
    padding-left: 18px;
  }

  .page-news .entry__summary {
    grid-template-columns: 92px minmax(0, 1fr) 132px;
    gap: 0 18px;
    padding: 20px 18px 20px 20px;
  }

  .page-news .entry__tag { grid-column: 1; }
  .page-news .entry__title { grid-column: 2; font-size: 17px; }
  .page-news .entry__phase { grid-column: 3; }

  .page-news .entry__body {
    padding: 0 18px 24px 130px;
  }
}

@media (min-width: 900px) {
  .page-news .news-index__layout {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-news .news-filter {
    position: sticky;
    top: calc(var(--frame-h) + 26px);
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: flex-start;
    gap: 10px;
  }

  .page-news .news-filter__chip {
    justify-content: flex-start;
    padding: 0 20px;
  }
}

@media (min-width: 860px) {
  .page-news .news-series__rail {
    grid-auto-columns: minmax(0, 1fr);
    overflow-x: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 880px) {
  .page-news .news-correction__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .entry[open] .entry__body { animation: none; }
  .page-news .entry__title,
  .page-news .news-filter__chip,
  .page-news .news-hero__index a { transition: none; }
  .page-news .news-series__rail { scroll-snap-type: none; }
}
</style>