/* 让页面铺满 */
html, body {
  height: 100%;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

/* 背景图层：全屏铺满 */
.bg {
  position: fixed;
  inset: 0;
  background-image: url("../img/background.jpg");
  background-size: cover;       /* 全屏裁切铺满 */
  background-position: center;  /* 居中 */
  background-repeat: no-repeat;
  filter: none;
  z-index: 0;
}

/* 内容层 */
.page {
  position: relative;
  height: 100%;
  z-index: 1;
}

/* 左上角横幅 */
.banner {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;          /* 可调 */
  height: auto;
  user-select: none;
}


.top-center {
  position: absolute;
  top: 24px;                  /* 整体离顶部距离 */
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;        /* ✅ 横向居中 */
  max-width: 90%;
}

.info {
  position: absolute;
  left: 32px;
  top: 110px;            /* ✅ 比 banner 的 top 大即可 */
  max-width: min(820px, calc(100% - 64px));
  padding: 0;
  color: #fff;

  background: transparent;
  text-align: left;      /* ✅ 明确左对齐 */
}




/* .info-title {
  margin: 0 0 10px 0;
  font-size: clamp(26px, 3vw, 44px);
  font-weight: 800;
  letter-spacing: 1px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.45);
} */
 .info-title {
  margin: 0 0 10px 0;
  font-size: clamp(22px, 2.5vw, 36px);
  font-weight: 800;
  letter-spacing: 1px;
  text-shadow: 0 3px 12px rgba(0,0,0,0.55);
}

/* 
.info-lines p {
  margin: 6px 0;
  font-size: 14px;
  line-height: 1.5;
  opacity: 0.95;
  text-shadow: 0 2px 10px rgba(0,0,0,0.35);
} */
 .info-lines p {
  margin: 6px 0;
  font-size: 14px;
  line-height: 1.5;
  opacity: 0.95;
  text-shadow: 0 2px 10px rgba(0,0,0,0.45);
}


/* 右下"更新"按钮 */
.update-btn {
  position: absolute;
  right: 28px;
  bottom: 28px;

  padding: 10px 14px;
  font-size: 14px;
  border: 0;
  border-radius: 10px;

  background: rgba(255, 255, 255, 0.9);
  color: #111;
  cursor: pointer;

  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}

.update-btn:hover {
  transform: translateY(-1px);
}

.update-btn:active {
  transform: translateY(0px);
}