/* 消除白边 */
body {
    margin: 0;
    padding: 0;
}

/* 视频包裹容器的样式 */
.video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.video-wrapper video {
    width: 1%;
    height: auto;
    object-fit: cover;
}

.content {
    position: relative;
    z-index: 1;
    padding: 20px;
    color: white;
}


/* ================================
   页脚 — margin 推底，无白条
   ================================ */

.site-footer {
  margin-top: 50vh;
  background: rgba(25, 25, 28, 0.88);
  color: #999;
  padding: 20px 30px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-family:
    Inter,
    "SF Pro Display",
    "PingFang SC",
    "Microsoft YaHei",
    sans-serif;
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
}

/* 四列布局 */
.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: 20px;
}

/* 品牌区域 */
.footer-brand h2 {
  color: #fff;
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 6px;
}

.slogan-cn {
  color: #ccc;
  font-size: 12px;
  margin: 0 0 4px;
}

.slogan-en {
  color: #888;
  font-size: 11px;
  font-style: italic;
  line-height: 1.5;
}

.domain {
  margin-top: 8px;
  color: #777;
  font-family: monospace;
  letter-spacing: 1px;
}

/* 栏目 */
.footer-column h4 {
  color: #ccc;
  font-size: 11px;
  letter-spacing: 2px;
  margin: 0 0 10px;
}

.footer-column a {
  display: block;
  color: #999;
  text-decoration: none;
  font-size: 12px;
  margin-bottom: 5px;
  transition: 0.2s;
}

.footer-column a:visited {
  color: #999;
}

.footer-column a:hover {
  color: #fff;
  transform: translateX(3px);
}

/* 状态 */
.footer-status {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
  color: #999;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: #39d353;
}

/* 底部版权 */
.footer-bottom {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  font-size: 11px;
  line-height: 1.5;
  color: #888;
}

.footer-bottom p {
  margin: 2px 0;
}

.footer-bottom .built {
  color: #aaa;
}

/* 移动端 */
@media (max-width: 700px) {
  .site-footer {
    margin-top: 90vh;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

.footer-column a:visited {
  color: #999;
}

  .footer-column a:hover {
    transform: none;
  }
}