html,body {margin:0;padding:0;width:100vw; height:100vh;background:#111;}
    body {font-family:sans-serif;overflow:hidden;position:relative;}
    .nav-bar { display: flex; justify-content: space-around; align-items:center;
      background: #181818; color:#bbb; font-size:17px; height:48px; box-shadow:0 1px 6px #0002; 
      position: fixed; top:0; left:0; width:100vw; z-index:30; }
    .nav-bar .nav-item { flex:1; text-align:center; padding:8px 0; cursor:pointer;
      font-weight:500; border-bottom:2px solid transparent; color:#bbb;
      transition:.2s; position:relative; user-select: none; font-size:17px; }
    .nav-bar .on { color:#f33; border-bottom:2.5px solid #f33; background:rgba(255,255,255,0.03);}
    .nav-bar .short-wrap { display:inline-flex;align-items:center;gap:3px;vertical-align:middle;}
    #category-btn { display:inline-flex;align-items:center;justify-content:center;
      cursor:pointer;font-size:14px;color:#ff4444;font-weight:500;
      padding:0 3px; margin-left:2px; user-select:none; transition:.13s;
      background:transparent; border:none; outline:none; height:20px; width:20px; line-height:1; }
    #category-btn .arrow { font-size:13px; color:#ff4444; margin-left:0; }
    #category-btn.open .arrow { transform:rotate(180deg);}
    #category-row { width:100vw;background:#16171c;position:fixed;top:48px;left:0;z-index:31;
      display:none;justify-content:center;align-items:center;box-shadow:0 4px 16px #0003;
      animation:fadeInDown .18s; padding:0; min-height:48px; border-bottom:1px solid #232323; }
    #category-row.show {display:flex;}
    #category-row .cat-title{font-size:1.11rem;color:#aaa;font-weight:500;margin-right:10px;}
    #category-row .cat-item{ color:#fff;font-size:1rem;padding:7px 14px 7px 12px;border-radius:7px;
      margin:0 2px;cursor:pointer;font-weight:500;display:inline-block;transition:.14s;
      background:rgba(40,40,50,0.10);border:none;outline:none;}
    #category-row .cat-item.active{background:#f33;color:#fff;}
    @keyframes fadeInDown{from{opacity:0;transform:translateY(-20px);}to{opacity:1;transform:none;}}
    .video-slide, .video-card { width:100vw; height:calc(100vh - 48px); position:relative; overflow:hidden; display:flex; align-items:center; justify-content:center; background:#111;}
    .main-video { width:100vw; height:calc(100vh - 48px); object-fit:cover; background:#000; position:absolute;left:0;top:0;z-index:1; outline:none;}
    .cover-mask{position:absolute;top:0;left:0;width:100vw;height:100%;background:rgba(0,0,0,0.12);pointer-events:none;z-index:2;}
    .play-btn{position:absolute;top:46%;left:50%;transform:translate(-50%,-50%);width:80px;height:80px;z-index:10;background:rgba(0,0,0,0.25);border-radius:23px;display:flex;align-items:center;justify-content:center;pointer-events:none;box-shadow:0 3px 12px #0006;}
    .play-btn svg{display:block;}
    .right-bar{position:absolute;right:2vw;top:42%;display:flex;flex-direction:column;align-items:center;z-index:20;pointer-events:auto;gap: 16px;}
    .right-bar .btn{display:flex;flex-direction:column;align-items:center;color:#fff;font-size:21px;pointer-events:auto;border-radius:16px;padding:3px 10px 2px 10px;background:transparent !important;box-shadow:none !important;margin-bottom:0;}
    .right-bar .btn:active {background:rgba(255,77,77,0.13);}
    .right-bar .num{font-size:15px;margin-top:2px;}
    .bottom-bar{position:absolute;left:0;bottom:170px;z-index:20;display:flex;flex-direction:column;align-items:flex-start;padding-left:19px;width:96vw;max-width:900px;pointer-events:none;}
    .video-category{font-size:1.45rem;font-weight:600;margin-bottom:9px;color:#ffd8d8;display:inline-block;pointer-events:auto;line-height:1.18;letter-spacing:2px;text-shadow:0 2px 7px #0009;background:none !important;border-radius:0 !important;padding:0 9px 0 0;}
    .desc{font-size:1.12rem;font-weight:600;line-height:1.45;margin-bottom:4px;max-width:95vw;word-break:break-all;background:none !important;border-radius:0 !important;padding:0;pointer-events:auto;color:#fff;display:inline-block;text-shadow:0 2px 7px #000b;}
    /* 分享弹窗、暂停弹窗样式自带 */
    #pause-tip,#share-tip,#swipe-tip {position:fixed;left:0;top:0;width:100vw;height:100vh;z-index:1999;display:flex;align-items:center;justify-content:center;}
    #pause-tip .box,#swipe-tip .box{background:rgba(30,30,30,0.87);padding:30px 26px 22px 26px;border-radius:19px;font-size:1.2rem;color:#fff;box-shadow:0 6px 30px #000b;font-weight:500;text-align:center;max-width:88vw;line-height:2;}
#share-tip .sbox {
  background: #222;
  border-radius: 18px;
  color: #fff;
  padding: 20px 16px 14px 16px;
  font-size: 1.08rem;
  text-align: center;
  box-shadow: 0 10px 40px #0008;
  min-width: unset;
  max-width: 85vw;
  margin: 0 auto;
}

#share-tip .sbtn {
  background: #f33;
  color: #fff;
  font-size: 1.16rem;
  border-radius: 9px;
  padding: 9px 32px;
  margin-top: 22px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: 0 3px 8px #0002;
  border: none;
  display: inline-block;
}

#share-tip .sbtn:active {
  background: #ff7d7d;
}

#share-tip .scancel {
  background: #666;
  color: #fff;
  font-size: 0.97rem;
  opacity: 0.96;
  margin-top: 13px;
  display: inline-block;
  cursor: pointer;
  padding: 7px 25px;
  border-radius: 7px;
  border: none;
  margin-left: 8px;
}

    #share-tip .sbtn{background:#f33;color:#fff;font-size:1.2rem;border:none;border-radius:9px;padding:9px 22px;margin-top:25px;cursor:pointer;font-weight:600;box-shadow:0 3px 8px #0002;transition:.14s;}
    #share-tip .sbtn:active{background:#ff7d7d;}
    #share-tip .scancel{color:#eee;font-size:.98rem;opacity:0.82;margin-top:13px;display:inline-block;cursor:pointer;}
    /* 新增广告弹窗样式 ↓ */
    #limit-tip {
      position:fixed; left:0; top:0; width:100vw; height:100vh; z-index:2999;
      background:rgba(30,30,30,0.92); display:none; align-items:center; justify-content:center;
    }
#limit-tip .box {
  background:rgba(255,255,255,0.97);
  border-radius:8px;
  color:#222;
  padding:22px 16px 18px 16px;   /* 上右下左padding */
  font-size:1.08rem;
  text-align:center;
  box-shadow:0 10px 40px #0008;
  min-width: unset;              /* 取消最小宽度限制 */
  /*max-width: 75vw;               /* 移动端宽度适配 */
}

    #limit-tip .btn {
      margin:18px 10px 0 10px; padding:9px 28px; border:none; border-radius:9px;
      font-size:1.08rem; font-weight:300; cursor:pointer; background:#bbb; color:#fff; transition:.13s;
    }
    #limit-tip .btn:active {background:#c00;}
    #limit-tip .btn.cancel {background:#007aff;color:#fff;font-weight: 300;}
    #limit-tip .btn.cancel:active {background:#888;}
    /* 新增广告弹窗样式 ↑ */
    @media (max-width:700px){
      .desc {font-size:1rem;}
      .video-category{font-size:1.1rem;}
      .bottom-bar{padding-left:7px;bottom:98px;}
      .right-bar{right:2vw;top:32%;}
      .play-btn{width:53px;height:53px;}
      #pause-tip .box,#swipe-tip .box{font-size:1.01rem;padding:18px 9px 16px 9px;}
    }
    @media (max-width:400px){
      .desc {font-size:0.97rem;}
      .video-category{font-size:0.92rem;}
      .bottom-bar{padding-left:2px;bottom:67px;}
      .right-bar{right:1vw;top:24%;}
      #pause-tip .box,#swipe-tip .box{font-size:0.95rem;}
    }
      /* 可根据需要调整按钮样式 */
    .btn { 
      display: inline-block;
      padding: 0.5em 1em;
      background: #007aff;
      color: #fff;
      text-decoration: none;
      border-radius: 4px;
      font-size: 16px;
    }
    /* 覆盖层样式 */
    #install-overlay {
      position: fixed;
      inset: 0;
      background-color: rgba(0,0,0,0.8);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999;
      cursor: pointer;
    }
    #install-overlay img {
      max-width: 90%;
      max-height: 90%;
      box-shadow: 0 0 10px #000;
    }