/* ===== 资讯中心 · 页面专属样式 ===== */

.page-news{
  --news-rhythm: clamp(36px, 6vw, 76px);
  --news-line: 1px solid var(--gray-300);
  display: block;
}

.page-news [id]{
  scroll-margin-top: 120px;
}

/* —— 页首 —— */
.page-news .news-hero{
  padding-top: clamp(22px, 4vw, 46px);
  padding-bottom: clamp(14px, 2.2vw, 24px);
}

.page-news .news-hero .breadcrumb{
  margin-bottom: clamp(18px, 3vw, 34px);
}

.page-news .news-hero__grid{
  display: grid;
  gap: clamp(14px, 2.4vw, 34px);
  align-items: end;
}

.page-news .news-hero h1{
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.7rem, 9vw, 4.8rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.012em;
  color: var(--ink-900);
}

.page-news .news-hero__lede{
  margin: 0;
  max-width: 44ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--gray-500);
}

@media (min-width: 960px){
  .page-news .news-hero__grid{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

.page-news .news-stamp{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding-top: 14px;
  border-top: var(--news-line);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .05em;
  color: var(--gray-500);
}

.page-news .news-stamp b{
  font-weight: 500;
  color: var(--ink-900);
}

.page-news .section-scale{
  margin-top: clamp(20px, 3vw, 30px);
}

/* —— 头条卡 —— */
.page-news .lead{
  margin-top: clamp(26px, 4vw, 46px);
}

.page-news .lead-card{
  display: grid;
  overflow: hidden;
  border-radius: var(--radius-l);
  background: var(--ink-900);
  color: var(--paper);
}

@media (min-width: 900px){
  .page-news .lead-card{
    grid-template-columns: minmax(0, 1.03fr) minmax(0, .97fr);
  }
}

.page-news .lead-card__body{
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(24px, 4vw, 50px);
}

.page-news .lead-card__kicker{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .07em;
  color: var(--gray-300);
}

.page-news .lead-card h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.4vw, 2.45rem);
  line-height: 1.2;
  color: var(--paper);
}

.page-news .lead-card__intro{
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--gray-300);
}

.page-news .lead-card__facts{
  list-style: none;
  margin: 4px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid rgba(195, 200, 207, .28);
  display: grid;
  gap: 10px;
}

.page-news .lead-card__facts li{
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--gray-300);
}

.page-news .lead-card__facts b{
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--signal);
}

.page-news .lead-card__actions{
  margin: 6px 0 0;
}

.page-news .lead-card .btn-outline{
  border-color: var(--gray-300);
  color: var(--paper);
}

.page-news .lead-card .btn-outline:hover{
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink-900);
}

.page-news .lead-card__media{
  margin: 0;
  min-height: 220px;
  aspect-ratio: 840 / 520;
  background: var(--ink-700);
}

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

@media (min-width: 900px){
  .page-news .lead-card__media{
    aspect-ratio: auto;
    height: 100%;
  }
}

/* —— 分类带 —— */
.page-news .feed-wrap{
  margin-top: var(--news-rhythm);
}

.page-news .filters{
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 2px 4px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-news .filter{
  flex: 0 0 auto;
  padding: 9px 16px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-pill);
  background: var(--gray-100);
  color: var(--gray-500);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  text-decoration: none;
  transition: background var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.page-news .filter:hover{
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--paper);
}

.page-news .filter.is-active{
  background: var(--signal);
  border-color: var(--signal);
  color: var(--paper);
}

/* —— 条目分组与索引列表 —— */
.page-news .feed-group{
  margin-top: clamp(30px, 4.4vw, 52px);
}

.page-news .filters + .feed-group{
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-news .feed-group__head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-900);
}

.page-news .feed-group__title{
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-h3);
  letter-spacing: -.005em;
  color: var(--ink-900);
}

.page-news .feed-group__count{
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .05em;
  color: var(--gray-500);
}

.page-news .feed-list{
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-news .feed-item{
  display: grid;
  gap: 4px 22px;
  padding: 16px 12px;
  border-bottom: 1px solid var(--gray-300);
  border-radius: var(--radius-s);
  transition: background var(--t-fast) var(--ease);
}

.page-news .feed-item:hover{
  background: var(--gray-100);
}

@media (min-width: 760px){
  .page-news .feed-item{
    grid-template-columns: 92px minmax(0, 1fr);
    align-items: start;
  }
}

.page-news .feed-item__time{
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .05em;
  color: var(--gray-500);
  white-space: nowrap;
}

.page-news .feed-item__title{
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-900);
}

.page-news .feed-item__abs{
  margin: 6px 0 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--gray-500);
}

/* —— 长期专题 —— */
.page-news .series{
  margin-top: var(--news-rhythm);
}

.page-news .series__head{
  display: grid;
  gap: 10px;
  max-width: 66ch;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-news .series__kicker{
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .1em;
  color: var(--signal);
}

.page-news .series__head h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.2;
  color: var(--ink-900);
}

.page-news .series__lede{
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--gray-500);
}

.page-news .series-grid{
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
}

@media (min-width: 780px){
  .page-news .series-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1140px){
  .page-news .series-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .series-card{
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--gray-300);
  border-left-width: 4px;
  border-radius: var(--radius-m);
  background: var(--paper);
  transition: transform var(--t-fast) var(--ease);
}

.page-news .series-card:hover{
  transform: translateY(-3px);
}

.page-news .series-card--volt{ border-left-color: var(--volt); }
.page-news .series-card--signal{ border-left-color: var(--signal); }
.page-news .series-card--legacy{ border-left-color: var(--legacy); }

.page-news .series-card__media{
  margin: 0;
  aspect-ratio: 3 / 2;
  background: var(--gray-100);
}

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

.page-news .series-card__body{
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  padding: clamp(18px, 2.4vw, 26px);
}

.page-news .series-card__body h3{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.18rem, 1.7vw, 1.42rem);
  line-height: 1.3;
  color: var(--ink-900);
}

.page-news .series-card__body > p{
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--gray-500);
}

.page-news .series-card__details{
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--gray-300);
}

.page-news .series-card__details summary{
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .06em;
  color: var(--volt);
}

.page-news .series-card__details summary::-webkit-details-marker{
  display: none;
}

.page-news .series-card--signal .series-card__details summary{ color: var(--signal); }
.page-news .series-card--legacy .series-card__details summary{ color: var(--legacy); }

.page-news .series-card__details summary::after{
  content: "＋";
  font-size: .95rem;
  line-height: 1;
}

.page-news .series-card__details[open] summary::after{
  content: "－";
}

.page-news .series-card__list{
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-news .series-card__list li{
  position: relative;
  padding-left: 16px;
  font-size: var(--fs-small);
  line-height: 1.65;
  color: var(--ink-700);
}

.page-news .series-card__list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 7px;
  height: 1px;
  background: var(--gray-500);
}

/* —— 更新节奏 —— */
.page-news .cadence{
  margin-top: var(--news-rhythm);
}

.page-news .cadence-card{
  display: grid;
  gap: clamp(22px, 3.4vw, 46px);
  padding: clamp(24px, 4vw, 54px);
  border-radius: var(--radius-l);
  background: var(--ink-900);
  color: var(--paper);
}

@media (min-width: 900px){
  .page-news .cadence-card{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: center;
  }
}

.page-news .cadence-card__text{
  display: grid;
  gap: 12px;
}

.page-news .cadence-card__kicker{
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .1em;
  color: var(--signal);
}

.page-news .cadence-card h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.22;
  color: var(--paper);
}

.page-news .cadence-card__text p{
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--gray-300);
}

.page-news .cadence-stats{
  list-style: none;
  margin: 0;
  padding: 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border-radius: var(--radius-m);
  overflow: hidden;
  background: rgba(195, 200, 207, .3);
}

@media (min-width: 520px){
  .page-news .cadence-stats{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .cadence-stat{
  background: var(--ink-900);
  padding: 18px 16px;
}

.page-news .cadence-stat b{
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--signal);
}

.page-news .cadence-stat span{
  display: block;
  margin-top: 6px;
  font-size: var(--fs-small);
  color: var(--gray-300);
}

/* —— 回访入口 —— */
.page-news .revisit{
  margin-top: var(--news-rhythm);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-news .revisit__head{
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-news .revisit__head h2{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.2;
  color: var(--ink-900);
}

.page-news .revisit-grid{
  display: grid;
  gap: 1px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: var(--gray-300);
}

@media (min-width: 820px){
  .page-news .revisit-grid{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .revisit-card{
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--paper);
}

.page-news .revisit-card__num{
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .1em;
  color: var(--signal);
}

.page-news .revisit-card h3{
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink-900);
}

.page-news .revisit-card p{
  margin: 0;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: var(--gray-500);
}

.page-news .revisit-card__link{
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: .05em;
  color: var(--volt);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast) var(--ease);
}

.page-news .revisit-card__link:hover{
  border-bottom-color: var(--volt);
}

.page-news .revisit__tail{
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--gray-500);
}

.page-news .revisit__tail a{
  color: var(--ink-900);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (prefers-reduced-motion: reduce){
  .page-news .series-card,
  .page-news .feed-item,
  .page-news .filter,
  .page-news .revisit-card__link{
    transition: none;
  }
  .page-news .series-card:hover{
    transform: none;
  }
}