/* =======================================================================
   M77 新闻专属样式（news.html / news-*.html）
   公共样式（变量、重置、头部、页脚、面包屑）见 css/style.css
   ======================================================================= */

/* ---- 新闻 section 通用区块 ---- */
.news-section {
  padding-bottom: clamp(48px, 6vw, 80px);
}
.news-section__head {
  text-align: center;
  padding-bottom: clamp(24px, 3vw, 40px);
}
.news-section__title {
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 700;
  letter-spacing: 1px;
  color: #111;
  margin: 0 0 12px;
}
.news-section__rule {
  display: block;
  width: 52px;
  height: 2px;
  background: var(--color-gold, #c9a96e);
  margin: 0 auto;
}

/* ---- 拾年拾忆：首张特大(完整显示) + 其余裁成竖条，可点击切换 ---- */
/*
  默认第一张特大；鼠标悬停某张即在原地放大、其余变窄（纯 CSS :hover）。
  整排高度由 JS 按特大图宽度×原始比例算出；所有图 object-fit:cover：
  特大图因框比例与图片一致而完整显示，其余裁成竖条。
*/
.news-poster-accordion {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-bottom: clamp(48px, 6vw, 80px);
  overflow: hidden;
}

.news-poster-item {
  flex: 1;
  min-width: 0;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: flex .5s cubic-bezier(.22, .61, .36, 1);
}

/* 默认：第一张特大 */
.news-poster-item:first-child { flex: 3.2; }
/* 鼠标移入整排：全部变窄，仅悬停的那张在原地放大 */
.news-poster-accordion:hover .news-poster-item { flex: 1; }
.news-poster-accordion .news-poster-item:hover { flex: 3.2; }

.news-poster-item a { display: block; height: 100%; }

.news-poster-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform .6s cubic-bezier(.22, .61, .36, 1);
}

.news-poster-item:hover img { transform: scale(1.04); }

/* ---- 经销商培训：首张特大 + 悬停切换（卡片版，保留标题叠加） ---- */
.news-poster-accordion--cards .news-card {
  flex: 1;
  min-width: 0;
  transition: flex .5s cubic-bezier(.22, .61, .36, 1);
}
.news-poster-accordion--cards .news-card:first-child { flex: 3.2; }
.news-poster-accordion--cards:hover .news-card { flex: 1; }
.news-poster-accordion--cards .news-card:hover { flex: 3.2; }
.news-poster-accordion--cards .news-card__media { height: 100%; }
.news-poster-accordion--cards .news-card__media img {
  height: 100%;
  aspect-ratio: auto;
  object-fit: cover;
  object-position: center;
}

/* ---- 新闻卡片网格 ---- */
.news-grid {
  display: grid;
  gap: 0;
}
.news-grid--4 { grid-template-columns: repeat(4, 1fr); }
.news-grid--3 { grid-template-columns: repeat(3, 1fr); }

/* ---- 新闻卡片（图片+文字叠加） ---- */
.news-card {
  display: block;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  color: #fff;
}
.news-card__media img {
  width: 100%;
  aspect-ratio: 3/2;
  object-fit: cover;
  display: block;
  background: var(--color-gray, #e8e8e8);
  transition: transform .7s var(--ease, ease);
}
.news-card:hover .news-card__media img { transform: scale(1.04); }
.news-card__overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: clamp(12px, 1.5vw, 20px);
  background: linear-gradient(transparent, rgba(0,0,0,.65));
}
.news-card__cat {
  font-size: 11px;
  letter-spacing: 2px;
  color: rgba(255,255,255,.75);
  margin-bottom: 4px;
}
.news-card__title {
  font-size: clamp(13px, 1.1vw, 16px);
  font-weight: 500;
  letter-spacing: 1px;
  line-height: 1.5;
  margin: 0;
}

/* ---- 新闻详情：文章主体 ---- */
.article {
  /*max-width: 820px;*/
  margin: 0 auto;
  padding-block: clamp(40px, 5vw, 64px);
}
.article__meta {
  text-align: center;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.article__title {
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 700;
  letter-spacing: 3px;
  color: #111;
  margin: 0 0 12px;
  line-height: 1.5;
}
.article__date {
  font-size: 13px;
  color: #aaa;
  letter-spacing: 2px;
}
.article__hero {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
  background: var(--color-gray, #e8e8e8);
  margin-bottom: clamp(32px, 4vw, 48px);
}
.article__body {
  color: #444;
  font-size: clamp(14px, 1.1vw, 16px);
  line-height: 2.2;
  letter-spacing: .4px;
}
.article__body p { margin: 0 0 1.6em; }
.article__body img {
  width: 100%;
  display: block;
  object-fit: cover;
  margin: clamp(24px, 3vw, 40px) 0;
  background: var(--color-gray, #e8e8e8);
}
.article__body img.half {
  width: calc(50% - 8px);
  float: left;
  margin-right: 16px;
}
.article__body img.half + img.half { margin-right: 0; }
.article__body::after { content: ""; display: table; clear: both; }

/* ---- 新闻详情：上一篇 / 下一篇 ---- */
.article-nav {
  display: flex;
  border-top: 1px solid #e8e8e8;
  margin-top: clamp(48px, 6vw, 80px);
}
.article-nav__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 2.5vw, 32px) 0;
  text-decoration: none;
  color: #333;
  transition: color .2s;
  gap: 6px;
}
.article-nav__item--next { text-align: right; border-left: 1px solid #e8e8e8; padding-left: clamp(20px, 2.5vw, 32px); }
.article-nav__item--prev { padding-right: clamp(20px, 2.5vw, 32px); }
.article-nav__item:hover { color: #111; }
.article-nav__label {
  font-size: 11px;
  letter-spacing: 2px;
  color: #aaa;
  text-transform: uppercase;
}
.article-nav__title {
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 500;
  letter-spacing: 1px;
  line-height: 1.5;
}
.article-nav__item--prev .article-nav__label::before { content: "← "; }
.article-nav__item--next .article-nav__label::after  { content: " →"; }

/* ---- 响应式 ---- */
@media (max-width: 900px) {
  .news-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .news-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .news-poster-slider__slide { flex: 0 0 calc(25% - 2.5px); }
}
@media (max-width: 600px) {
  .news-grid--4,
  .news-grid--3 { grid-template-columns: 1fr; }
  .news-poster-slider__slide { flex: 0 0 calc(50% - 1.5px); }
  .article-nav { flex-direction: column; }
  .article-nav__item--next { border-left: 0; border-top: 1px solid #e8e8e8; padding-left: 0; text-align: left; }
}
@media (prefers-reduced-motion: reduce) {
  .news-poster-slider__track,
  .news-card__media img { transition-duration: .001ms !important; }
}