.page-news {
  --news-offset: clamp(0px, 4vw, 60px);
  --news-diagonal: polygon(13% 0, 100% 0, 100% 100%, 0 100%);
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  padding-block: clamp(24px, 4vw, 52px) clamp(20px, 3vw, 36px);
}

.page-news .news-masthead__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 46px);
  margin-top: clamp(18px, 3vw, 32px);
}

.page-news .news-masthead__title {
  font-size: clamp(34px, 7.6vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
  color: var(--c-paper);
}

.page-news .news-masthead__lede {
  max-width: 60ch;
  color: var(--c-paper);
  opacity: 0.84;
}

.page-news .news-masthead__index {
  display: flex;
  align-items: flex-end;
  gap: clamp(12px, 1.6vw, 20px);
  padding-left: 16px;
  border-left: 2px solid var(--c-orange);
}

.page-news .news-masthead__anchor {
  display: block;
  font-family: var(--font-score);
  font-weight: 900;
  font-size: clamp(60px, 13vw, 128px);
  line-height: 0.78;
  color: var(--c-orange);
  letter-spacing: -0.03em;
}

.page-news .news-masthead__index-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-bottom: 4px;
}

.page-news .news-masthead__index-line {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  white-space: nowrap;
}

/* ---------- 置顶条 ---------- */
.page-news .news-pinned__card {
  position: relative;
  display: grid;
  gap: clamp(18px, 2.6vw, 34px);
  padding: clamp(20px, 3vw, 44px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  background:
    linear-gradient(126deg, #0B1526 0%, #0B1526 48%, rgba(47, 125, 246, 0.2) 76%, rgba(255, 122, 47, 0.16) 100%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-news .news-pinned__kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 14px;
}

.page-news .news-pinned__kicker-text {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-news .news-pinned__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 38px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-news .news-pinned__text {
  margin: 0 0 18px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-news .news-pinned__points {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-news .news-pinned__points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-paper);
  opacity: 0.9;
}

.page-news .news-pinned__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-green);
}

.page-news .news-pinned__visual {
  position: relative;
  margin: 0;
  border-radius: var(--radius-soft);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #08111F;
}

.page-news .news-pinned__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.82;
}

.page-news .news-pinned__visual-cap {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-blue-soft);
}

/* ---------- 列表区 ---------- */
.page-news .news-board {
  position: relative;
}

.page-news .news-stream__hint {
  margin-top: 10px;
  color: var(--c-muted);
}

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

.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(16px, 2vw, 26px);
}

.page-news .news-filters__chip {
  cursor: pointer;
  user-select: none;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-news #nf-all:checked ~ .news-filters [for="nf-all"],
.page-news #nf-log:checked ~ .news-filters [for="nf-log"],
.page-news #nf-theme:checked ~ .news-filters [for="nf-theme"],
.page-news #nf-commute:checked ~ .news-filters [for="nf-commute"],
.page-news #nf-data:checked ~ .news-filters [for="nf-data"] {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: var(--c-ink);
  font-weight: 700;
}

.page-news #nf-log:checked ~ .news-stream > .news-card:not([data-cat="log"]),
.page-news #nf-theme:checked ~ .news-stream > .news-card:not([data-cat="theme"]),
.page-news #nf-commute:checked ~ .news-stream > .news-card:not([data-cat="commute"]),
.page-news #nf-data:checked ~ .news-stream > .news-card:not([data-cat="data"]) {
  display: none;
}

/* ---------- 卡片流 ---------- */
.page-news .news-stream {
  list-style: none;
  margin: clamp(22px, 3vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 2.8vw, 34px);
}

.page-news .news-card {
  position: relative;
  align-self: start;
  padding: clamp(16px, 2vw, 24px) clamp(16px, 2vw, 26px) clamp(16px, 2vw, 24px) clamp(22px, 2.6vw, 32px);
  background: var(--c-table);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-news .news-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--c-line);
  transition: background 0.28s var(--ease);
}

.page-news .news-card:hover {
  transform: translateY(-4px);
  border-color: var(--c-blue);
  box-shadow: var(--shadow-lift);
}

.page-news .news-card:hover::before {
  background: var(--c-green);
}

.page-news .news-card__thumb {
  margin: 0 0 14px;
  border-radius: var(--radius-soft);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #08111F;
}

.page-news .news-card__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92);
  transition: transform 0.5s var(--ease);
}

.page-news .news-card:hover .news-card__thumb img {
  transform: scale(1.04);
}

.page-news .news-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-muted);
}

.page-news .news-card__time,
.page-news .news-card__len {
  white-space: nowrap;
}

.page-news .news-card__len::before {
  content: "· ";
  color: var(--c-line);
}

.page-news .news-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.42;
  color: var(--c-paper);
}

.page-news .news-card__excerpt {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-muted);
  transition: color 0.24s var(--ease);
}

.page-news .news-card:hover .news-card__excerpt {
  color: var(--c-paper);
  opacity: 0.88;
}

/* ---------- 系列专题 ---------- */
.page-news .news-series__hint {
  margin-top: 10px;
  color: var(--c-muted);
}

.page-news .news-series__list {
  margin-top: clamp(20px, 3vw, 34px);
}

.page-news .news-series__item {
  border: 1px solid var(--c-line);
  border-radius: var(--radius-soft);
  background: var(--c-table);
  overflow: hidden;
  transition: border-color 0.24s var(--ease);
}

.page-news .news-series__item + .news-series__item {
  margin-top: 12px;
}

.page-news .news-series__item[open] {
  border-color: var(--c-blue);
}

.page-news .news-series__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.4vw, 26px);
  cursor: pointer;
  list-style: none;
  transition: background 0.24s var(--ease);
}

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

.page-news .news-series__summary:hover {
  background: rgba(47, 125, 246, 0.08);
}

.page-news .news-series__no {
  font-family: var(--font-score);
  font-weight: 900;
  font-size: 22px;
  color: var(--c-blue-soft);
  letter-spacing: -0.02em;
}

.page-news .news-series__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--c-paper);
}

.page-news .news-series__count {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-news .news-series__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-label);
  font-size: 18px;
  line-height: 1;
  color: var(--c-green);
}

.page-news .news-series__item[open] .news-series__summary::after {
  content: "–";
  color: var(--c-orange);
}

.page-news .news-series__body {
  padding: 0 clamp(16px, 2.4vw, 26px) clamp(16px, 2.2vw, 22px) clamp(16px, 2.4vw, 26px);
  border-top: 1px solid var(--c-line);
  padding-top: clamp(14px, 1.8vw, 20px);
}

.page-news .news-series__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
  max-width: 68ch;
}

.page-news .news-series__body p:last-child {
  margin-bottom: 0;
}

.page-news .news-series__body a {
  color: var(--c-blue-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-news .news-series__body a:hover {
  color: var(--c-green);
}

/* ---------- 回访入口 ---------- */
.page-news .news-return__panel {
  display: grid;
  gap: clamp(18px, 2.4vw, 30px);
  padding: clamp(22px, 3vw, 42px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-card);
  background:
    linear-gradient(118deg, rgba(47, 125, 246, 0.18) 0%, rgba(184, 255, 60, 0.07) 56%, rgba(6, 11, 20, 0) 100%);
}

.page-news .news-return__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.8vw, 30px);
  line-height: 1.3;
  color: var(--c-paper);
}

.page-news .news-return__text p {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-news .news-series__count {
    margin-left: 4px;
  }
}

@media (min-width: 880px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-news .news-stream {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3.4vw, 58px);
  }

  .page-news .news-stream > .news-card:nth-child(even) {
    margin-top: clamp(26px, 4.2vw, 62px);
  }
}

@media (min-width: 940px) {
  .page-news .news-pinned__card {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.8fr);
    align-items: center;
  }

  .page-news .news-pinned__visual {
    clip-path: var(--news-diagonal);
    border-radius: 0 0 0 0;
  }

  .page-news .news-return__panel {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: center;
  }

  .page-news .news-return__links {
    justify-content: flex-end;
  }
}

@media (max-width: 560px) {
  .page-news .news-filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: none;
  }

  .page-news .news-filters::-webkit-scrollbar {
    display: none;
  }

  .page-news .news-filters__chip {
    flex: 0 0 auto;
  }

  .page-news .news-masthead__index {
    align-items: center;
    border-left-width: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .news-card__thumb img,
  .page-news .news-card__excerpt,
  .page-news .news-series__summary {
    transition: none;
  }

  .page-news .news-card:hover {
    transform: none;
  }

  .page-news .news-card:hover .news-card__thumb img {
    transform: none;
  }
}