(function () {
// 绑定所有卡片点击事件
document.addEventListener('DOMContentLoaded', function () {
var blocks = document.querySelectorAll('.year-cell');
blocks.forEach(function (block) {
block.addEventListener('click', function () {
var idx = parseInt(block.getAttribute('data-idx'), 10);
showSubPage(idx);
});
});
// 绑定所有返回按钮事件
var backBtns = document.querySelectorAll('.back-btn');
backBtns.forEach(function (btn) {
btn.addEventListener('click', backToMain);
});
});
function showSubPage(idx) {
document.getElementById('year-grid').style.display = 'none';
document.getElementById('sub-page-' + idx).style.display = 'block';
}
function backToMain() {
document.getElementById('year-grid').style.display = 'grid';
var subPages = document.querySelectorAll('.sub-page');
subPages.forEach(function (page) {
page.style.display = 'none';
});
}
})();