天下黄河富宁夏 第四季
if (!btn) return;
var gi = parseInt(btn.getAttribute('data-gi'), 10);
if (isNaN(gi) || gi < 0 || gi >= groups.length) return;
var allBtns = switchEl.querySelectorAll('button');
for (var i = 0; i < allBtns.length; i++) { allBtns[i].classList.remove('active'); allBtns[i].style.background='#2a2a2a'; allBtns[i].style.color='#aaa'; }
btn.classList.add('active'); btn.style.background='#ff6b35'; btn.style.color='#fff';
var grid = document.getElementById('episodeGrid');
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var html = '';
for (var j = 0; j < groups[gi].items.length; j++) {
var ep = groups[gi].items[j];
html += '
' + ep.name + '';
}
grid.innerHTML = html;
});
})();
影片信息
一部波澜壮阔的水利开发建设创新史，全景展现了当地如何从传统工程水利向数字水利跨越，以及挖掘每一滴水潜力的生动实践