html, body {
    margin: 0;
    font-family: 'Abel','Roboto', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.3;
    color: #374151;
    font-size: 16px;
}
* {
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: normal;
    line-break: normal;
}
a {text-decoration: none;}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
h3 {
    font-size: 22px;
	color: #10428c;
	margin: 3px auto;
}


.html-wrapper {
    width: 100%;
    margin: 0 auto;
}
.html-container {
    margin: 0 auto;
    width: 100%;
    max-width: 100%;
    max-width: 1480px;
    padding-left: 2%;
    padding-right: 2%;
}
.header-bgcolor,.footer-bgcolor,.section-bgcolor {
    background-color: #10428c;
}
.narrow-container {
    margin: 0 auto;
}
.container-decoration {

}
.container-deco-lower {
    padding-top: 30px;
    padding-bottom: 40px;
}

.style-text {
    font-size: 17px;
    line-height: 1.5;
    text-align: justify;
}
.style-default {
    color: #374151;
}
.style-orange {
    color: #ff6600;
}
.style-white {
    color: #ffffff;
}
.style-blue {
    color: #10428c;
}
.style-default:hover, .style-white:hover, .style-blue:hover {
    color: #ff6600;
}


.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    padding-bottom: 24px;
}
.header-logo {
	width: 230px;
    height: 34px;
}
.header-logo-mini {
	width: 34px;
    height: 34px;
}
.header-navi-list {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-left: auto;
}
.header-navi-item {
	font-size: 17px;
	color: #ffffff;
	font-weight: 500;
}
.header-navi-item:hover {
	color: #ff6600;
}
.header-navi-separator {
    height: 13px;
	border-left: 1px solid #ffffff;
}
.header-toggle {
    display: none;
    font-size: 2rem;
    color: white;
    cursor: pointer;
}


.footer-container {
    padding-top: 50px;
    padding-bottom: 20px;
    flex-direction: column;
    align-items: center;
}
.footer-box {
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
	margin-bottom: 30px;
	text-align: justify;
    text-align-last: left;
    
    font-size: 16px;
	color: #ffffff;
	line-height: 22px;
}
.footer-copy {
    flex: 1 1 auto;
}
.footer-nav-box {
    flex: 0 0 auto;
    text-align: right;
}
.footer-flag {
    display: flex;
    justify-content: center;
    align-items: center;
}
.footer-flag-item {
	width: 50px;
	height: auto;
	padding: 4px;
}


.article-container {
    display: block;                 /* ★ 修改 */

    column-gap: 20px;
}
.article-container > a {
    display: block;    /* ★ 修改 */
}
.article-box {
    position: relative;
    box-shadow: 0 4px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
    border-radius: 5px;

    height: auto;

    /* ★ 修改：瀑布流关键属性 */
    display: inline-block;      /* ★ 修改 */
    width: 100%;                /* ★ 修改 */
    margin-bottom: 20px;        /* ★ 修改：上下间距 */

    break-inside: avoid;        /* ★ 修改：防止卡片被拆分 */
    -webkit-column-break-inside: avoid; /* ★ 修改：兼容 */
}
.article-box:hover {
	box-shadow: 0 6px 10px rgba(0, 0, 0, 0.2);
}

.article-image,.article-headline,.article-minibox {
	width: 100%;
	box-sizing: border-box;
}
.article-image {
    padding-bottom: 0;  /* ★ 修改 */
    height: auto;
}
.article-image img{
    position: static;   /* ★ 修改：取消绝对定位 */
    width: 100%;
    height: auto;       /* ★ 修改：高度自适应 */
    object-fit: contain;/* ★ 修改：不裁剪图片 */

    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
}
.article-headline {
	font-size: 15px;
	color: #10428c;
	line-height: 26px;
	font-weight: 600;
	padding: 20px 15px 10px 15px;
	display: flex;
	align-items: flex-start;
}
.article-content {
	font-size: 14px;
	color: #374151;
	line-height: 20px;
	padding: 0px 15px 10px 15px;
	display: flex;
	align-items: flex-start;
}
.article-minibox {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 15px 20px 15px;
}
.article-date,.article-click {
	font-size: 16px;
	color: #374151;
	line-height: 22px;
	white-space: nowrap;
	margin: 0;
}
.article-date {
    flex-grow: 1;
    overflow: hidden;
    text-overflow: ellipsis;
}
.article-click {
    flex-shrink: 0;
    margin-left: auto;
    text-align: right;
}


/* Small Screen */
@media screen and (max-width: 759px) {
    .html-container {padding-left: 4%; padding-right: 4%;}
    .article-container {column-count: 1;           /* ★ 修改 */
        column-gap: 15px;}
}

/* Tablet */
@media screen and (min-width: 760px) and (max-width: 1023px) {
    .article-container {column-count: 3;           /* ★ 修改 */
        column-gap: 20px;}
}

/* Middle Screen */
@media screen and (min-width: 1024px) and (max-width: 1439px) {
    .article-container {column-count: 4;           /* ★ 修改 */
        column-gap: 20px;}
}

/* Large Screen */
@media screen and (min-width: 1440px) {
    .article-container {column-count: 6;           /* ★ 修改 */
        column-gap: 20px;}
}