/* 神州控股官网克隆 — 首页回退样式（Elementor 编辑时可覆盖） */
:root {
  --dch-bg: #0a1628;
  --dch-text: #e8edf5;
  --dch-muted: #9aa8bc;
  --dch-accent: #3d7cff;
  --dch-card: rgba(255, 255, 255, 0.06);
  --dch-max: 1440px;
}

.dch-home {
  background: var(--dch-bg);
  color: var(--dch-text);
  font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.6;
}

.dch-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--dch-max);
  margin: 0 auto;
  padding: 16px 24px;
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(8px);
}

.dch-logo img {
  height: 40px;
  width: auto;
}

.dch-nav ul,
.dch-menu-fallback {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.dch-nav a,
.dch-menu-fallback a {
  color: var(--dch-text);
  text-decoration: none;
  font-size: 15px;
}

.dch-nav a:hover,
.dch-menu-fallback a:hover {
  color: var(--dch-accent);
}

.dch-hero-slider {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-height: 72vh;
  overflow: hidden;
}

.dch-hero-slide img {
  width: 100%;
  height: 72vh;
  object-fit: cover;
  display: block;
}

.dch-pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: var(--dch-max);
  margin: 48px auto;
  padding: 0 24px;
}

.dch-pillar {
  background: var(--dch-card);
  border-radius: 8px;
  overflow: hidden;
  padding-bottom: 16px;
}

.dch-pillar img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
}

.dch-pillar-sub {
  color: var(--dch-muted);
  font-size: 13px;
  letter-spacing: 0.2em;
  margin: 12px 16px 4px;
}

.dch-pillar h2 {
  font-size: 18px;
  font-weight: 500;
  margin: 0 16px;
  line-height: 1.4;
}

.dch-reports {
  display: flex;
  gap: 24px;
  justify-content: center;
  max-width: var(--dch-max);
  margin: 32px auto 56px;
  padding: 0 24px;
}

.dch-report {
  color: inherit;
  text-decoration: none;
  text-align: center;
}

.dch-report img {
  max-width: 280px;
  width: 100%;
  border-radius: 6px;
}

.dch-news,
.dch-future,
.dch-esg {
  max-width: var(--dch-max);
  margin: 0 auto 56px;
  padding: 0 24px;
}

.dch-news h2,
.dch-future h2 {
  font-size: 28px;
  margin-bottom: 24px;
}

.dch-news ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.dch-news a {
  color: inherit;
  text-decoration: none;
  display: block;
  background: var(--dch-card);
  border-radius: 8px;
  overflow: hidden;
  padding-bottom: 12px;
}

.dch-news img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.dch-news h3 {
  font-size: 16px;
  margin: 12px;
}

.dch-news time {
  color: var(--dch-muted);
  font-size: 13px;
  margin: 0 12px;
}

.dch-esg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.dch-esg article {
  background: var(--dch-card);
  border-radius: 8px;
  overflow: hidden;
}

.dch-esg img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.dch-esg h3 {
  margin: 16px 16px 8px;
}

.dch-esg p {
  margin: 0 16px 16px;
  color: var(--dch-muted);
  font-size: 14px;
}

.dch-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 40px 24px;
  text-align: center;
  color: var(--dch-muted);
}

.dch-footer-logo {
  height: 36px;
  margin-bottom: 12px;
}

.dch-qr {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin: 20px 0;
}

.dch-qr img {
  width: 88px;
  height: 88px;
}

.dch-footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  list-style: none;
  padding: 0;
}

@media (max-width: 1024px) {
  .dch-hero-slider,
  .dch-pillars,
  .dch-esg,
  .dch-news ul {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .dch-hero-slider,
  .dch-pillars,
  .dch-esg,
  .dch-news ul {
    grid-template-columns: 1fr;
  }
  .dch-hero-slide img {
    height: 40vh;
  }
}