.page-news {
  --news-cut: 18px;
  --cat-version: var(--cyan-500);
  --cat-monthly: var(--gold-500);
  --cat-compat: var(--ok);
  --cat-notice: var(--gray-300);
  padding-bottom: clamp(44px, 7vw, 92px);
}

/* ---------- 首屏 ---------- */
.page-news .news-masthead {
  position: relative;
  padding-block: clamp(22px, 4vw, 48px) clamp(10px, 2vw, 18px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(24, 199, 216, 0.16), transparent 62%),
    radial-gradient(80% 70% at 4% 10%, rgba(231, 168, 62, 0.09), transparent 58%);
}

.page-news .news-masthead__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-news .news-masthead__title {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(30px, 5.2vw, 48px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-news .news-masthead__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--gray-300);
}

.page-news .news-masthead__chips {
  margin-top: 18px;
  gap: 8px;
}

.page-news .cut-panel {
  background: linear-gradient(155deg, rgba(18, 59, 92, 0.92), rgba(11, 42, 69, 0.96));
  clip-path: polygon(0 0, calc(100% - var(--news-cut)) 0, 100% var(--news-cut), 100% 100%, var(--news-cut) 100%, 0 calc(100% - var(--news-cut)));
}

.page-news .masthead-index {
  padding: 18px 20px 20px;
}

.page-news .masthead-index__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan-300);
}

.page-news .masthead-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-news .masthead-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px;
  color: var(--ink);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-news .masthead-index__list li:last-child a {
  border-bottom: 0;
}

.page-news .masthead-index__list a:hover {
  color: var(--cyan-300);
  padding-left: 12px;
}

.page-news .masthead-index__num {
  font-size: 11.5px;
  color: var(--gray-300);
  letter-spacing: 0.08em;
}

/* ---------- 通用区块 ---------- */
.page-news .n-section {
  padding-block: clamp(30px, 5vw, 58px);
}

.page-news .n-section + .n-section {
  border-top: 1px solid var(--line);
}

.page-news .n-head {
  margin-bottom: clamp(18px, 3vw, 30px);
  max-width: 78ch;
}

.page-news .n-title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(22px, 3.2vw, 31px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-news .n-title::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 3px;
  margin-right: 12px;
  vertical-align: middle;
  background: linear-gradient(90deg, var(--cyan-500), var(--gold-500));
  transform: skewX(-24deg);
}

.page-news .n-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--gray-300);
}

/* ---------- 图片容器 ---------- */
.page-news .n-media {
  position: relative;
  margin: 0 0 clamp(20px, 3vw, 32px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
  background:
    radial-gradient(90% 120% at 18% 0%, rgba(24, 199, 216, 0.22), transparent 58%),
    linear-gradient(160deg, rgba(18, 59, 92, 0.9), rgba(6, 26, 46, 0.95));
}

.page-news .n-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.9;
}

.page-news .n-media--track img { aspect-ratio: 12 / 5; }
.page-news .n-media--log img { aspect-ratio: 8 / 5; }
.page-news .n-media--screen img { aspect-ratio: 16 / 9; }
.page-news .n-media--feed img { aspect-ratio: 3 / 2; }

.page-news .n-media__label {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-300);
  background: rgba(6, 26, 46, 0.82);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
}

/* ---------- 版本时间线 ---------- */
.page-news .version-track {
  list-style: none;
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-news .version-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-500), rgba(231, 168, 62, 0.65), rgba(195, 206, 217, 0));
}

.page-news .version-track__node {
  position: relative;
}

.page-news .version-track__node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--deep-900);
  border: 2px solid var(--cyan-500);
  box-shadow: 0 0 0 4px rgba(24, 199, 216, 0.14);
}

.page-news .version-track__ver {
  display: inline-block;
  margin-bottom: 6px;
  padding: 2px 8px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--deep-900);
  background: var(--cyan-500);
  border-radius: 2px;
}

.page-news .version-track__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .version-track__text {
  margin: 0;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--gray-300);
}

/* ---------- 动态筛选 ---------- */
.page-news .feed-filter {
  position: relative;
}

.page-news .feed-filter__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}

.page-news .feed-filter__bar,
.page-news .feed-filter > label {
  vertical-align: middle;
}

.page-news .feed-filter > label {
  display: inline-flex;
  align-items: center;
  margin: 0 8px 10px 0;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--gray-300);
  background: rgba(11, 42, 69, 0.6);
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  user-select: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-news .feed-filter > label:hover {
  color: var(--ink);
  border-color: var(--line-strong);
  background: rgba(24, 199, 216, 0.12);
}

.page-news .feed-filter__radio:checked + label {
  color: var(--deep-900);
  background: var(--cyan-500);
  border-color: var(--cyan-500);
}

.page-news .feed-filter__radio:focus-visible + label {
  outline: 2px solid var(--gold-300);
  outline-offset: 2px;
}

.page-news #feed-version:checked ~ .news-feed > li:not([data-cat="version"]),
.page-news #feed-monthly:checked ~ .news-feed > li:not([data-cat="monthly"]),
.page-news #feed-compat:checked ~ .news-feed > li:not([data-cat="compat"]),
.page-news #feed-notice:checked ~ .news-feed > li:not([data-cat="notice"]) {
  display: none;
}

/* ---------- 动态列表 ---------- */
.page-news .news-feed {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-news .news-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(160deg, rgba(18, 59, 92, 0.72), rgba(11, 42, 69, 0.82));
  overflow: hidden;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .news-item:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-news .news-item[open] {
  border-color: rgba(24, 199, 216, 0.45);
}

.page-news .news-item__head {
  display: grid;
  grid-template-columns: 4px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-news .news-item__bar {
  align-self: stretch;
  min-height: 24px;
  border-radius: 2px;
  background: var(--cat-notice);
}

.page-news .news-feed > li[data-cat="version"] .news-item__bar { background: var(--cat-version); }
.page-news .news-feed > li[data-cat="monthly"] .news-item__bar { background: var(--cat-monthly); }
.page-news .news-feed > li[data-cat="compat"] .news-item__bar { background: var(--cat-compat); }
.page-news .news-feed > li[data-cat="notice"] .news-item__bar { background: var(--cat-notice); }

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

.page-news .news-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.page-news .news-item__time {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray-300);
}

.page-news .news-item__title {
  display: block;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-news .news-item__chev {
  justify-self: end;
  width: 9px;
  height: 9px;
  border-right: 1.5px solid var(--gray-300);
  border-bottom: 1.5px solid var(--gray-300);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-news .news-item[open] .news-item__chev {
  transform: rotate(-135deg);
  border-color: var(--cyan-500);
}

.page-news .news-item__panel {
  padding: 12px 16px 16px 34px;
  border-top: 1px dashed var(--line);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--gray-300);
}

.page-news .news-item__panel p {
  margin: 0;
}

/* ---------- 月调记录 ---------- */
.page-news .monthly-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
}

.page-news .month-log {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.page-news .month-log__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0 14px 12px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-news .month-log__row:hover {
  border-left-color: var(--gold-500);
  background: rgba(24, 199, 216, 0.05);
}

.page-news .month-log__idx {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-300);
}

.page-news .month-log__ver {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan-300);
}

.page-news .month-log__scope {
  margin: 4px 0 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--gray-300);
}

/* ---------- 大屏兼容 ---------- */
.page-news .screen-causes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-news .screen-causes__item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--warn);
  border-radius: 3px;
  background: linear-gradient(150deg, rgba(18, 59, 92, 0.6), rgba(11, 42, 69, 0.7));
  transition: border-left-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-news .screen-causes__item:hover {
  border-left-color: var(--cyan-500);
  transform: translateY(-2px);
}

.page-news .screen-causes__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .screen-causes__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--gray-300);
}

.page-news .screen-links {
  margin-top: clamp(18px, 3vw, 26px);
  gap: 12px;
}

/* ---------- 服务公告 ---------- */
.page-news .notice-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-news .notice-card {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan-500);
  border-radius: 3px;
  background: rgba(11, 42, 69, 0.62);
}

.page-news .notice-card--gold {
  border-top-color: var(--gold-500);
}

.page-news .notice-card__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan-300);
}

.page-news .notice-card--gold .notice-card__label {
  color: var(--gold-300);
}

.page-news .notice-card__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-news .notice-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--gray-300);
}

.page-news .news-outro {
  margin-top: clamp(22px, 3.5vw, 34px);
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold-500);
  border-radius: 3px;
  background: rgba(6, 26, 46, 0.72);
}

.page-news .news-outro__text {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--gray-300);
}

.page-news .news-outro .cluster {
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-news .notice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-news .screen-causes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .news-masthead__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(240px, 0.85fr);
  }
  .page-news .monthly-grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.15fr);
  }
  .page-news .month-log__row {
    grid-template-columns: 88px 68px minmax(0, 1fr);
    align-items: baseline;
    column-gap: 16px;
  }
  .page-news .month-log__scope {
    margin-top: 0;
  }
  .page-news .screen-causes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-news .feed-filter > label {
    position: sticky;
    top: 18px;
    z-index: 4;
  }
  .page-news .notice-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item__chev,
  .page-news .screen-causes__item,
  .page-news .feed-filter > label,
  .page-news .month-log__row {
    transition: none;
  }
  .page-news .news-item:hover,
  .page-news .screen-causes__item:hover {
    transform: none;
  }
}