/* ===== 战报观察 / page-news ===== */
.page-news{
  --news-cat-report: var(--cyan);
  --news-cat-method: var(--green);
  --news-cat-version: var(--orange);
  --news-cat-region: var(--amber);
  --news-card-bg: linear-gradient(180deg, rgba(18,58,94,.24), rgba(11,31,56,.44));
  --news-gap: clamp(20px, 3.4vw, 42px);
}

/* 隐藏的原生筛选控件 */
.page-news .nf-in{
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---------- 首屏 ---------- */
.page-news .news-hero{
  position: relative;
  padding: clamp(26px, 5.6vw, 56px) 0 clamp(22px, 4vw, 40px);
  background:
    radial-gradient(1100px 400px at 84% -14%, rgba(40,225,210,.13), transparent 62%),
    radial-gradient(760px 360px at 4% 116%, rgba(255,122,26,.10), transparent 64%);
  overflow: hidden;
}
.page-news .news-hero__inner{ position: relative; }

.page-news .news-hero__label{
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-news .news-hero__ghost{
  position: absolute;
  right: 0;
  top: -.12em;
  font-size: clamp(56px, 19vw, 200px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(40,225,210,.20);
  transform: skewX(-8deg);
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

.page-news .news-hero__title{
  position: relative;
  z-index: 1;
  margin: 0;
}

.page-news .news-hero__lead{
  position: relative;
  z-index: 1;
  max-width: 46ch;
  margin: clamp(14px, 2.4vw, 24px) 0 0;
}

.page-news .news-hero__facts{
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
}
.page-news .news-hero__facts > div{
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.page-news .news-hero__facts dt{
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--text);
}
.page-news .news-hero__facts dd{
  margin: 0;
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 900;
  color: var(--paper-hi);
}

/* ---------- 板块与布局 ---------- */
.page-news .news-board__head{
  max-width: 62ch;
  margin-bottom: var(--news-gap);
}
.page-news .news-board__title{
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: var(--paper-hi);
}
.page-news .news-board__sub{
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.page-news .news-layout{
  display: grid;
  gap: var(--news-gap);
}

/* ---------- 左轨栏目导览 ---------- */
.page-news .news-rail__label{
  margin: 0 0 12px;
  color: var(--text);
}
.page-news .news-filters{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-news .news-filter{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}
.page-news .news-filter:hover{
  color: var(--paper-hi);
  border-color: var(--cyan);
}
.page-news .news-filter__dot{
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--dot, var(--cyan));
}
.page-news .news-filter--all{ --dot: var(--paper-hi); }
.page-news .news-filter--report{ --dot: var(--news-cat-report); }
.page-news .news-filter--method{ --dot: var(--news-cat-method); }
.page-news .news-filter--version{ --dot: var(--news-cat-version); }
.page-news .news-filter--region{ --dot: var(--news-cat-region); }

.page-news .news-rail__note{
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text);
}

/* 选中态 */
.page-news:has(#nf-all:checked) .news-filter[for="nf-all"],
.page-news:has(#nf-report:checked) .news-filter[for="nf-report"],
.page-news:has(#nf-method:checked) .news-filter[for="nf-method"],
.page-news:has(#nf-version:checked) .news-filter[for="nf-version"],
.page-news:has(#nf-region:checked) .news-filter[for="nf-region"]{
  color: var(--navy);
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 700;
}
.page-news:has(#nf-all:checked) .news-filter[for="nf-all"] .news-filter__dot,
.page-news:has(#nf-report:checked) .news-filter[for="nf-report"] .news-filter__dot,
.page-news:has(#nf-method:checked) .news-filter[for="nf-method"] .news-filter__dot,
.page-news:has(#nf-version:checked) .news-filter[for="nf-version"] .news-filter__dot,
.page-news:has(#nf-region:checked) .news-filter[for="nf-region"] .news-filter__dot{
  background: var(--navy);
}

/* 键盘焦点 */
.page-news:has(#nf-all:focus-visible) .news-filter[for="nf-all"],
.page-news:has(#nf-report:focus-visible) .news-filter[for="nf-report"],
.page-news:has(#nf-method:focus-visible) .news-filter[for="nf-method"],
.page-news:has(#nf-version:focus-visible) .news-filter[for="nf-version"],
.page-news:has(#nf-region:focus-visible) .news-filter[for="nf-region"]{
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* 本地过滤 */
.page-news:has(#nf-report:checked) .news-block:not([data-cat="report"]),
.page-news:has(#nf-method:checked) .news-block:not([data-cat="method"]),
.page-news:has(#nf-version:checked) .news-block:not([data-cat="version"]),
.page-news:has(#nf-region:checked) .news-block:not([data-cat="region"]){
  display: none;
}

/* ---------- 条目流 ---------- */
.page-news .news-stream{
  display: grid;
  gap: clamp(34px, 5vw, 64px);
  min-width: 0;
}

.page-news .news-block[data-cat="report"]{ --cat: var(--news-cat-report); }
.page-news .news-block[data-cat="method"]{ --cat: var(--news-cat-method); }
.page-news .news-block[data-cat="version"]{ --cat: var(--news-cat-version); }
.page-news .news-block[data-cat="region"]{ --cat: var(--news-cat-region); }

.page-news .news-block__head{
  position: relative;
  padding-left: 16px;
  margin-bottom: 18px;
}
.page-news .news-block__head::before{
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--cat), transparent 92%);
}
.page-news .news-block__head .label{
  margin: 0 0 6px;
  color: var(--cat);
}
.page-news .news-block__title{
  margin: 0 0 8px;
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--paper-hi);
}
.page-news .news-block__desc{
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-news .news-block__list{
  display: grid;
  gap: 10px;
  min-width: 0;
}

/* ---------- 条目卡 ---------- */
.page-news .news-card{
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--news-card-bg);
  box-shadow: inset 3px 0 0 var(--cat, var(--cyan));
  transition: transform .22s cubic-bezier(.2,.7,.3,1), border-color .22s ease, box-shadow .22s ease;
}
.page-news .news-card:hover,
.page-news .news-card:focus-within{
  transform: translate(6px, -6px);
  border-color: var(--cyan);
  box-shadow: inset 3px 0 0 var(--cat, var(--cyan)), 0 18px 36px rgba(2,8,18,.5);
}

.page-news .news-card__meta{
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--text);
}
.page-news .news-card__num{
  font-weight: 700;
  color: var(--cat, var(--cyan));
}

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

.page-news .news-card__title{
  margin: 0 0 6px;
  font-size: clamp(16px, 1.5vw, 19px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper-hi);
}
.page-news .news-card__line{
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-news .news-card__more{ margin-top: 10px; }
.page-news .news-card__more > summary{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
}
.page-news .news-card__more > summary::-webkit-details-marker{ display: none; }
.page-news .news-card__more > summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
}
.page-news .news-card__more[open] > summary::after{ content: "–"; }
.page-news .news-card__more > p{
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
}
.page-news .news-card__stats{
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}
.page-news .news-card__stats li{
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--text);
}
.page-news .news-card__stats .num{
  font-size: 15px;
  font-weight: 700;
  color: var(--cat, var(--cyan));
}

/* ---------- 宽幅图 ---------- */
.page-news .news-figure{
  margin: clamp(20px, 3vw, 30px) 0 0;
}
.page-news .news-figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  object-fit: cover;
  background: var(--navy-2);
}
.page-news .news-figure .figure__caption{
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 宽松摘要段 ---------- */
.page-news .news-breath{
  padding: clamp(16px, 2.6vw, 26px) clamp(18px, 3vw, 32px);
  border-left: 2px solid var(--line);
  background: linear-gradient(90deg, rgba(18,58,94,.20), transparent 78%);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
}
.page-news .news-breath p{
  max-width: 56ch;
  margin: 0;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.85;
  color: var(--paper-hi);
}

/* ---------- 订阅面板 ---------- */
.page-news .news-sub__panel{
  position: relative;
  padding: clamp(24px, 4vw, 48px);
  border-radius: var(--radius-l);
  background: linear-gradient(160deg, var(--paper) 0%, var(--paper-hi) 72%);
  overflow: hidden;
}
.page-news .news-sub__panel::after{
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,122,26,.20), transparent 68%);
  pointer-events: none;
}
.page-news .news-sub__panel .label{
  color: rgba(26,34,48,.55);
}
.page-news .news-sub__title{
  margin: 8px 0 12px;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--ink);
}
.page-news .news-sub__text{
  max-width: 58ch;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(26,34,48,.78);
}

.page-news .news-sub__grid{
  display: grid;
  gap: 14px;
}
.page-news .news-sub__item{
  padding: 16px;
  border: 1px solid rgba(26,34,48,.14);
  border-radius: var(--radius-m);
  background: rgba(255,255,255,.62);
}
.page-news .news-sub__item h3{
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.page-news .news-sub__item p{
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(26,34,48,.72);
}

.page-news .news-sub__demo{
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid rgba(26,34,48,.16);
}
.page-news .news-sub__demo > summary{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.page-news .news-sub__demo > summary::-webkit-details-marker{ display: none; }
.page-news .news-sub__demo > summary::after{
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--orange);
}
.page-news .news-sub__demo[open] > summary::after{ content: "–"; }
.page-news .news-sub__demo ol{
  margin: 12px 0 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(26,34,48,.78);
}
.page-news .news-sub__demo li + li{ margin-top: 6px; }

.page-news .news-sub__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}
.page-news .news-sub__actions .btn--ghost{
  color: var(--ink);
  border-color: rgba(26,34,48,.32);
}
.page-news .news-sub__actions .btn--ghost:hover{
  border-color: var(--orange);
  color: var(--orange);
}

/* ---------- 收尾引导 ---------- */
.page-news .news-cta__inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: clamp(18px, 2.6vw, 28px);
  border-top: 1px solid var(--line);
}
.page-news .news-cta__text{
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}
.page-news .news-cta__links{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 720px ---------- */
@media (min-width: 720px){
  .page-news .news-card{
    grid-template-columns: 84px minmax(0, 1fr);
    align-items: start;
    padding: 18px 20px;
  }
  .page-news .news-card__meta{
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

/* ---------- 960px ---------- */
@media (min-width: 960px){
  .page-news .news-layout{
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: start;
  }
  .page-news .news-rail{
    position: sticky;
    top: calc(var(--topbar-h) + 20px);
  }
  .page-news .news-filters{
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .page-news .news-filter{
    justify-content: flex-start;
    border-radius: var(--radius-s);
    padding: 9px 12px;
  }
  .page-news .news-sub__grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 1080px ---------- */
@media (min-width: 1080px){
  .page-news .news-rail{ top: 24px; }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  .page-news .news-card{ transition: none; }
  .page-news .news-card:hover,
  .page-news .news-card:focus-within{ transform: none; }
  .page-news .news-filter{ transition: none; }
}