/* ========================================
   学习贯彻党的二十届四中全会精神 - 专题页面样式
   移动端响应式适配
   ======================================== */

/* ---- CSS Custom Properties ---- */
:root {
  --color-primary: #e22323;
  --color-primary-dark: #c41e1e;
  --color-text: #242424;
  --color-text-secondary: #656565;
  --color-border: #e8e8e8;
  --color-bg: #fff;
  --color-bg-footer: #f5f5f5;

  --font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;

  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  --max-width: 1200px;
  --section-title-height: 50px;
  --border-radius: 4px;
}

/* ---- Reset & Base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-width: 320px;
}

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-primary);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}

ul {
  list-style: none;
}

/* ---- Layout xxcontainer ---- */
.xxcontainer {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-row {
  padding-top: var(--spacing-xl);
}

.section-row--first {
  padding-top: 1.875rem;
}

/* ---- Header / Banner ---- */
.page-header {
  background: var(--color-bg);
}

.page-header .banner {
  text-align: center;
}

.page-header .banner img {
  width: 100%;
  display: block;
}

/* ---- Main Content Grid ---- */
.main-content {
  padding-bottom: var(--spacing-2xl);
}

/* Top row: slider + 重要精神 */
.top-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

/* Two-column rows: 重要文章 + 学习贯彻 */
.two-col-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

/* Full-width rows */
.full-row {
  grid-column: 1 / -1;
}

/* ---- Slider / Carousel ---- */
.slider-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 570 / 400;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.slider-track {
  display: flex;
  height: 100%;
  transition: transform 0.5s ease-in-out;
}

.slider-slide {
  flex: 0 0 100%;
  position: relative;
  height: 100%;
}

.slider-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slider-slide .slide-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #fff;
  font-size: var(--font-size-lg);
  line-height: 1.5;
}

/* Slider Dots */
.slider-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.3s;
}

.slider-dot.active {
  background: #fff;
}

/* ---- Section Box ---- */
.section-box {
  background: var(--color-bg);
  height: 100%;
  min-width: 0;
}

/* Grid 子元素防止内容撑开列宽 */
.top-row > *,
.two-col-row > * {
  min-width: 0;
  overflow: hidden;
}

.section-box--scroll {
  position: relative;
  height: 360px;
  overflow: hidden;
}

.xx-section-header {
  height: var(--section-title-height);
  line-height: var(--section-title-height);
  background-repeat: no-repeat;
  background-position: left top;
  background-size: auto 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.xx-section-header--zyjh {
  background-image: url("/resource/images/qhzt/title_zyjh.jpg");
}

.xx-section-header--zywz {
  background-image: url("/resource/images/qhzt/title_zywz.jpg");
}

.xx-section-header--xxjl {
  background-image: url("/resource/images/qhzt/title_xxjl.png");
}

.xx-section-header--zyls {
  background-image: url("/resource/images/qhzt/title_zyls.jpg");
}

.xx-section-header--xxjy {
  background-image: url("/resource/images/qhzt/title_xxjy.png");
}

.xx-section-header .more-link {
  font-size: 0.9375rem;
  color: #333;
  padding-right: 1.25rem;
  background: none;
  flex-shrink: 0;
}

.xx-section-header .more-link:hover {
  color: var(--color-primary);
}

.section-body {
  padding-top: var(--spacing-xl);
}

/* ---- News List ---- */
.xx-list {
  margin: 0;
}

.xx-item {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  padding: 0.625rem 0;
}

.xx-item::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.news-date {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  margin-left: auto;
  padding-left: var(--spacing-md);
  white-space: nowrap;
  flex-shrink: 0;
}

.xx-title {
  font-size: var(--font-size-lg);
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}


/* ---- Responsive: Tablet (≤991px) ---- */
@media (max-width: 991px) {
  .top-row {
    gap: var(--spacing-lg);
  }

  .two-col-row {
    gap: var(--spacing-lg);
  }

  .section-box--scroll {
    height: 320px;
  }

  .xx-title {
    font-size: var(--font-size-base);
  }

  .news-date {
    font-size: var(--font-size-sm);
  }


}

/* ---- Responsive: Mobile (≤767px) ---- */
@media (max-width: 767px) {
  :root {
    --section-title-height: 44px;
  }

  .xxcontainer {
    padding: 0 var(--spacing-sm);
  }

  .section-row {
    padding-top: var(--spacing-lg);
  }

  .section-row--first {
    padding-top: var(--spacing-lg);
  }

  /* Stack everything */
  .top-row,
  .two-col-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .slider-wrapper {
    aspect-ratio: 16 / 9;
  }

  .slider-slide .slide-caption {
    font-size: var(--font-size-base);
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .section-box--scroll {
    height: auto;
  }

  .xx-title {
    font-size: var(--font-size-base);
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
  }

  .news-date {
    font-size: var(--font-size-sm);
  }

  .xx-section-header {
    background-size: auto 62%;
    background-position: left center;
  }

  .xx-section-header .more-link {
    font-size: 0.8125rem;
    line-height: 1.8;
  }

  .section-body {
    padding-top: var(--spacing-md);
  }


}

/* ---- Responsive: Small Mobile (≤480px) ---- */
@media (max-width: 480px) {
  .slider-wrapper {
    aspect-ratio: 4 / 3;
  }

  .slider-dot {
    width: 8px;
    height: 8px;
  }

  .xx-item {
    flex-wrap: wrap;
    padding: 0.5rem 0;
  }

  .news-date {
    width: 100%;
    padding-left: 1.25rem;
    margin-top: 0.25rem;
  }

  .xx-section-header {
    background-size: auto 62%;
  }
}