/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    color: #333;
    background: #fff;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul, li {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 50px;
    left: 0;
    z-index: 1000;
    width: 100%;
    padding: 0 72px;
    box-sizing: border-box;
    height: 90px;
    transition: padding 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}

/* ===== Scroll Progress ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    z-index: 2000;
    pointer-events: none;
}

.scroll-progress span {
    display: block;
    height: 100%;
    background: #0D58FC;
    transform: scaleX(0);
    transform-origin: 0 50%;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%;
    background: #fff;
    padding: 0 40px;
    box-sizing: border-box;
    border-radius: 20px;
    transition: border-radius 0.3s ease;
}

.header.header-fixed {
    top: 0;
    padding: 0;
    animation: headerSlideDown 0.3s ease;
}

.header.header-fixed .container {
    border-radius: 0;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    padding-left: 100px;
}

@keyframes headerSlideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.logo {
    width: 190px;
    height: 36px;
    background: url(../images/common/logo.png) no-repeat;
    background-size: 100% 100%;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #2b7de9, #1a5cc8);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 16px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a2e;
}

.nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav a {
    padding: 6px 30px;
    font-size: 18px;
    color: #333;
    border-radius: 4px;
    transition: all 0.3s;
    white-space: nowrap;
}

.nav a:hover,
.nav a.active {
    color: #0D58FC;
}

.btn {
    width: 136px;
    height: 42px;
    line-height: 42px;
    text-align: center;
    background: linear-gradient( 90deg, #5ECFFE 0%, #025FFF 100%);
    border-radius: 10px 10px 10px 10px;
    font-family: Alibaba PuHuiTi, Alibaba PuHuiTi;
    font-weight: 500;
    font-size: 15px;
    color: #FFFFFF;
}

/* ===== Banner ===== */
.hero-banner {
    position: relative;
    height: 450px;
    margin-top: 60px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-banner .bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-banner .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-banner .hero-home .overlay {
    background: linear-gradient(135deg, rgba(43, 125, 233, 0.85) 0%, rgba(43, 125, 233, 0.4) 50%, transparent 100%);
}

.hero-banner .hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding-left: 100px;
}

.hero-banner .hero-subtitle {
    font-size: 14px;
    letter-spacing: 2px;
    opacity: 0.8;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.hero-banner .hero-title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
}

.hero-banner .hero-desc {
    font-size: 14px;
    opacity: 0.85;
    max-width: 500px;
    line-height: 1.8;
    margin-bottom: 30px;
}

.hero-banner .hero-btns {
    display: flex;
    gap: 16px;
}

.btn-primary {
    display: inline-block;
    background: #2b7de9;
    color: #fff;
    padding: 10px 30px;
    border-radius: 4px;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #1a5cc8;
    color: #fff;
}

.btn-outline {
    display: inline-block;
    background: transparent;
    color: #fff;
    padding: 10px 30px;
    border-radius: 4px;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.page-banner {
    height: 836px;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

@keyframes bannerKenburns {
    from {
        transform: scale(1.02);
    }
    to {
        transform: scale(1.1);
    }
}

@media (prefers-reduced-motion: no-preference) {
    .page-banner .banner-bg {
        animation: bannerKenburns 16s cubic-bezier(.19, .6, .35, 1) 0.2s both;
    }
}
.page-banner img {
    width: 100%;
    height: 100%;
}

.page-banner::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05));
}

.page-banner .banner-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding-left: 100px;
}

.page-banner .banner-en {
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: 10px;
}

.page-banner .banner-title {
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-banner .banner-desc {
    font-size: 14px;
    opacity: 0.8;
}

.page-banner.has-bg {
    position: relative;
}

.page-banner.has-bg .banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.page-banner.has-bg .banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(43, 125, 233, 0.9) 0%, rgba(43, 125, 233, 0.6) 60%, transparent 100%);
}

/* ===== Section Common ===== */
.section {
    padding: 70px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 30px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 10px;
}

.section-title p {
    font-size: 14px;
    color: #999;
}

/* ===== Footer ===== */
.footer {
    background: #111827;
    color: #fff;
    padding: 0 96px;
}

.footer-content {
    height: 240px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.39);
    box-sizing: border-box;
    padding: 0 70px;
}

.footer-brand .footer-logo {
    display: flex;
    width: 200px;
    height: 44px;
    margin-bottom: 30px;
}
.footer-brand .footer-logo img {
    width: 100%;
    height: 100%;
}

.footer-brand .slogan {
    font-weight: 400;
    font-size: 20px;
    color: #FFFFFF;
}

.footer-links {
    height: 160px;
    margin-left: 80px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.footer-links a {
    display: block;
    font-weight: 400;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.2s;
}

.footer-links a:hover,
.footer-links a.active {
    color: #FFFFFF;
    font-weight: 500;
}

.footer-contact {
    height: 160px;
    border-left: 1px solid rgba(255,255,255,0.39);
    border-right: 1px solid rgba(255,255,255,0.39);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    box-sizing: border-box;
    padding: 0 80px;
    margin: 0 80px;
}

.footer-contact .contact-item {
    display: flex;
    align-items: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-contact .contact-item img {
    width: 24px;
    height: 24px;
    margin-right: 24px;
}

.footer-contact .contact-item span {
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
}

.footer-qr {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    justify-content: flex-start;
}

.footer-qr img {
    width: 120px;
    height: 120px;
    background: #fff;
    object-fit: contain;
}

.footer-bottom {
    height: 50px;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 24px;
    font-weight: 400;
    font-size: 14px;
    color: #c5c5c5;
}

.footer-bottom-item {
    font-weight: inherit;
    font-size: inherit;
    color: inherit;
    white-space: nowrap;
}

/* ===== Homepage - Hero ===== */
.hero-home {
    position: relative;
    height: 726px;
    overflow: hidden;
}

.hero-home .hero-bg-right {
    position: absolute;
    right: 0;
    top: 0;
    width: 100%;
    height: 958px;
    object-fit: cover;
}

.hero-home .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 58, 110, 0.92) 0%, rgba(26, 58, 110, 0.6) 55%, transparent 100%);
}

.hero-home .hero-content {
    position: relative;
    z-index: 2;
    color: #333;
    /* 标题文字已烧进 indexBg.png（约在 258~476px 处），按钮改为贴底排列避开标题 */
    padding: 0 100px 150px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    height: 100%;
}

.hero-home .hero-content p {
    font-family: Alibaba PuHuiTi, Alibaba PuHuiTi;
    font-weight: 500;
    font-size: 50px;
    color: #3F3F3F;
    height: 80px;
    line-height: 80px;
}

.hero-home .hero-content .p1 {
    font-family: D-DIN-DIN, D-DIN-DIN;
    font-weight: 500;
    font-size: 22px;
}

.hero-home .hero-content .p3 {
    font-weight: bold;
    line-height: 100px;
    margin-bottom: 60px;
    font-size: 58px;
}

.hero-home .hero-content .hero-btns {
    display: flex;
    gap: 16px;
}

.hero-home .hero-content .hero-btns .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 140px;
    height: 40px;
    border: 1px solid #0D58FC;
    background: #fff;
    box-sizing: border-box;
    color: #0D58FC;
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
}

.hero-home .hero-content .hero-btns .active {
    background: #0D58FC;
    color: #fff;
}

.hero-home .hero-content .hero-btns .btn .arrow-right {
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 10px solid #fff;
    margin-left: 10px;
}
.hero-home .hero-content .hero-btns .btn:nth-child(2) .arrow-right {
    border-left-color: #0D58FC;
}

/* ===== Homepage - Stats Bar ===== */
.stats-bar {
    width: 100%;
    background: url('../images/index/img6.png') no-repeat;
    background-size: 100% 100%;
    height: 312px;
    display: flex;
    align-items: center;
    color: #333;
}

.stats-bar .container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0;
}

.stats-bar .stats-left {
    display: flex;
    align-items: center;
    width: 62%;
    flex-shrink: 0;
}

.stats-bar .stats-items {
    width: 100%;
    display: flex;
}

.stats-bar .stat-item {
    width: 25%;
    text-align: center;
}

.stats-bar .stat-num {
    height: 60px;
    line-height: 60px;
    font-size: 40px;
    font-weight: 700;
    color: #0d58fc;
}
.stats-bar .stat-num .unit {
    font-size: 18px;
    font-weight: normal;
    color: #666;
}

.stats-bar .stat-label {
    font-size: 20px;
    opacity: 0.7;
    color: #333;
}

.stats-bar .stats-right {
    width: 38%;
    display: flex;
    padding-left: 50px;
    box-sizing: border-box;
    align-items: flex-start;
    flex-direction: column;
}

.stats-bar .stats-right p {
    font-size: 24px;
    font-weight: bold;
    color: #555;
    height: 60px;
    line-height: 60px;
}

/* 「了解更多」走全站统一的 .link-arrow（箭头滑出 + 下划线展开），
   这里只留基础排版。原先私有的 .arrow-right1 CSS 三角箭头已随
   index.html 的标记一并删除 —— 箭头由 .link-arrow 的 .arr 提供。
   PC 的字号配色在 index.html 内联样式，移动端在 css/mobile.css。 */
.stats-bar .stats-right .btn1 {
    display: flex;
    align-items: center;
    color: #0d58fc;
    font-size: 20px;
    font-weight: 600;
    cursor: pointer;
}

/* ===== Homepage - Products Preview ===== */
.home-products .products-grid {
    width: 100%;
    padding: 0 90px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    justify-content: center;
}
.home-products .container {
    width: 100%;
}
.home-products .container .home-section-title {
    width: 100%;
    height: 68px;
    line-height: 68px;
    text-align: center;
    font-family: Alibaba PuHuiTi, Alibaba PuHuiTi;
    font-weight: bold;
    font-size: 30px;
    color: #2F2F2F;
    margin: 45px auto;
}

.product-preview-card {
    width: 600px;
    height: 600px;
    padding: 40px;
    background: url('../images/index/productBg2.png') no-repeat;
    background-size: 100% 100%;
    cursor: pointer;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(22, 54, 110, .08);
}
/* 第一张卡：加大间距 + 换背景。
   原来写成嵌套的 `&:first-child`，但原生 CSS 嵌套要求 Chrome/Edge 120+、
   Safari 17.2+、Firefox 117+ —— 低于这些版本整条规则会被丢弃，
   第一张卡会丢掉间距并用错背景。这里改成平铺选择器，全兼容。 */
.product-preview-card:first-child {
    margin-right: 60px;
    background: url('../images/index/productBg1.png') no-repeat;
    background-size: 100% 100%;
}
.product-preview-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 60px rgba(22, 54, 110, .2);
}

.product-preview-card .card-title {
    font-size: 30px;
    font-weight: bold;
    color: #333;
    margin-bottom: 40px;
    transition: color .3s ease;
}
.product-preview-card:hover .card-title {
    color: #0D58FC;
}

.product-preview-card .features {
    width: 100%;
}
.product-preview-card .features li {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #d5d5d5;
    padding: 40px 0;
    box-sizing: border-box;
    transition: padding-left .35s cubic-bezier(.22, 1, .36, 1);
}
/* 同样从嵌套 `&:last-child` 改成平铺，兼容旧内核 */
.product-preview-card .features li:last-child {
    border: none;
}
.product-preview-card .features li:hover {
    padding-left: 8px;
}
/* 公共样式 */
.product-preview-card .features li .li-icon {
    width: 40px;
    height: 40px;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    transition: transform .4s cubic-bezier(.22, 1, .36, 1);
    transform-origin: center;
}
.product-preview-card .features li:hover .li-icon {
    transform: scale(1.15) rotate(8deg);
}
/* 选第1个li里的icon */
.product-preview-card .features li:nth-child(1) .li-icon {
    background-image: url('../images/index/img1.png');
}
/* 选第2个li里的icon */
.product-preview-card .features li:nth-child(2) .li-icon {
    background-image: url('../images/index/img2.png');
}
/* 选第3个li里的icon */
.product-preview-card .features li:nth-child(3) .li-icon {
    background-image: url('../images/index/img3.png');
}
.product-preview-card .features li .li-content {
    width: calc(100% - 50px);
    padding-left: 24px;
    box-sizing: border-box;
}
.product-preview-card .features li .li-content .li-title {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.product-preview-card .features li .li-content .li-desc {
    font-size: 16px;
    font-weight: 400;
    color: #414141;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

/* ===== Homepage - Solution Preview ===== */

.solution-card-dark {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    padding: 30px;
    color: #fff;
    transition: transform 0.3s, background 0.3s;
}

.solution-card-dark:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.12);
}

.solution-card-dark h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.solution-card-dark p {
    font-size: 13px;
    opacity: 0.75;
    line-height: 1.7;
    margin-bottom: 16px;
}

.solution-card-dark .card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.solution-card-dark .card-features span {
    background: rgba(43, 125, 233, 0.3);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
}

.solution-card-dark .card-link {
    color: #2b7de9;
    font-size: 13px;
}

.solution-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 30px;
    grid-column: 1 / -1;
}

.solution-stat-item {
    background: rgba(43, 125, 233, 0.15);
    border: 1px solid rgba(43, 125, 233, 0.25);
    border-radius: 8px;
    padding: 24px 30px;
    color: #fff;
}

.solution-stat-item .stat-num {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.solution-stat-item .stat-desc {
    font-size: 13px;
    opacity: 0.7;
}

/* ===== Homepage - News Preview ===== */
.home-news {
    padding: 70px 0;
}

.home-news .news-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.home-news .news-header .section-title {
    text-align: left;
    margin-bottom: 0;
}

.news-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #eee;
}

.news-tabs a {
    padding: 10px 20px;
    font-size: 14px;
    color: #666;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s;
}

.news-tabs a.active,
.news-tabs a:hover {
    color: #2b7de9;
    border-bottom-color: #2b7de9;
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid #eee;
    gap: 30px;
}

.news-item .news-thumb {
    width: 180px;
    height: 120px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    background: #e8f0fe;
}

.news-item .news-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-item .news-info {
    flex: 1;
}

.news-item .news-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.news-item .news-info p {
    font-size: 13px;
    color: #999;
    line-height: 1.6;
}

.news-more {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

/* ===== Product Page ===== */
.product-layout {
    display: flex;
    gap: 30px;
    padding: 40px 0 60px;
}

.product-sidebar {
    width: 460px;
    flex-shrink: 0;
    background: #fff;
    border-radius: 10px;
    padding: 40px 0;
    box-sizing: border-box;
    box-shadow: 0px 0px 31px 2px rgba(222,226,234,0.58);
}

.product-sidebar .sidebar-item {
    height: 100px;
    padding: 0 34px;
    box-sizing: border-box;
    font-weight: normal;
    font-size: 20px;
    color: #3F3F3F;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
}
.product-sidebar .sidebar-item .img-box {
    width: 32px;
    height: 32px;
    margin-right: 12px;
}
.product-sidebar .sidebar-item span {
    width: calc(100% - 44px);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.product-sidebar .sidebar-item:hover {
    color: #2b7de9;
    background: #F3F8FF;
}

.product-sidebar .sidebar-item.active {
    color: #2b7de9;
    font-weight: 600;
    background: #F3F8FF;
}

.product-content {
    flex: 1;
    min-width: 0;
}

.product-content .product-block {
    display: none;
}

.product-content .product-block.active {
    display: block;
}

.product-content .product-block h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 16px;
}

.product-content .product-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 24px;
}
.product-content .btn-detail {
    display: inline-block;
    background: #2b7de9;
    color: #fff;
    padding: 12px 36px;
    border-radius: 4px;
    font-size: 14px;
    transition: background 0.3s;
}

.product-content .btn-detail:hover {
    background: #1a5cc8;
    color: #fff;
}

/* ===== 接口加载 / 失败提示（.api-status，各页 JS 输出的临时占位）=====
   它可能被塞进 flex 纵向容器（新闻列表）、grid 容器（产品/方案/首页卡片）或普通块，
   统一定成整行铺满 + 居中，避免缩在左上角一行小字 */
.api-status {
    grid-column: 1 / -1;
    width: 100%;
    margin: 0;
    padding: 56px 16px;
    box-sizing: border-box;
    text-align: center;
    color: #8A94A6;
    font-size: 16px;
    line-height: 1.6;
}

/* ===== 空状态（新闻中心 / 产品中心 / 解决方案共用）=====
   插画为 CSS 背景图（品牌渐变"漂浮新闻卡"），不用额外图片文件；
   提示语与引导按钮由各页 JS 输出，加载失败时不带按钮；
   移动端换成本球+托盘方案并隐藏本插画（见 css/mobile.css） */
.empty-state {
    width: 100%;
    max-width: 560px;
    min-height: 320px;
    margin: 0 auto;
    padding: 52px 32px 48px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: radial-gradient(58% 44% at 50% 0%, rgba(2, 95, 255, 0.06) 0%, rgba(2, 95, 255, 0) 100%), linear-gradient(180deg, #F7FAFF 0%, #FAFBFC 100%);
    border: 1px solid #E4EBF7;
    border-radius: 16px;
}

/* 漂浮新闻卡插画，整体轻微上浮呼吸 */
.empty-state::before {
    content: "";
    width: 150px;
    height: 104px;
    margin-bottom: 24px;
    flex: none;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 150 104' fill='none'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop offset='0' stop-color='%235ECFFE'/%3E%3Cstop offset='1' stop-color='%23025FFF'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cellipse cx='75' cy='62' rx='56' ry='26' fill='%23025FFF' opacity='.05'/%3E%3Cg transform='rotate(-9 46 54)'%3E%3Crect x='14' y='28' width='64' height='52' rx='8' fill='%23E3EEFF'/%3E%3C/g%3E%3Cg transform='rotate(7 92 51)'%3E%3Crect x='52' y='16' width='80' height='70' rx='10' fill='%23FFFFFF' stroke='%23D9E5F6' stroke-width='2'/%3E%3Crect x='64' y='30' width='30' height='9' rx='4.5' fill='url(%23g)'/%3E%3Crect x='64' y='48' width='56' height='6' rx='3' fill='%23DCE6F5'/%3E%3Crect x='64' y='60' width='44' height='6' rx='3' fill='%23DCE6F5'/%3E%3C/g%3E%3Ccircle cx='126' cy='12' r='7' fill='url(%23g)'/%3E%3Ccircle cx='138' cy='32' r='3.5' fill='%235ECFFE'/%3E%3Ccircle cx='16' cy='14' r='3' fill='%235ECFFE' opacity='.6'/%3E%3C/svg%3E") center / contain no-repeat;
    animation: empty-float 3.2s ease-in-out infinite;
}

@keyframes empty-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.empty-state .empty-main {
    margin: 0;
    font-weight: 600;
    font-size: 20px;
    color: #5A6474;
}

.empty-state .empty-hint {
    margin: 10px 0 0;
    font-weight: 400;
    font-size: 14px;
    line-height: 1.7;
    color: #98A2B6;
    text-align: center;
}

/* 引导按钮：跳到有内容的分类（目标分类由各页 JS 计算后写入 data-*，无可用分类时不渲染） */
.empty-state .empty-action {
    margin-top: 26px;
    height: 42px;
    padding: 0 30px;
    border: none;
    border-radius: 10px;
    box-sizing: border-box;
    background: linear-gradient(90deg, #5ECFFE 0%, #025FFF 100%);
    font-family: inherit;
    font-weight: 500;
    font-size: 15px;
    color: #fff;
    cursor: pointer;
    box-shadow: 0 6px 14px rgba(2, 95, 255, 0.25);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.empty-state .empty-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(2, 95, 255, 0.32);
}

.empty-state .empty-action:active {
    transform: translateY(0);
}

/* ===== News Page ===== */
.news-page-layout {
    padding: 0 0 40px;
}

.news-page-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #eee;
    margin-bottom: 30px;
}

.news-page-tabs a {
    padding: 12px 28px;
    font-size: 15px;
    color: #666;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s;
}

.news-page-tabs a.active,
.news-page-tabs a:hover {
    color: #2b7de9;
    border-bottom-color: #2b7de9;
}

.news-page-list {
    display: flex;
    flex-direction: column;
}

.news-page-list .card[data-href] {
    cursor: pointer;
}

.news-page-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid #eee;
    gap: 40px;
    transition: background 0.2s;
}

.news-page-item:hover {
    background: #f8f9fc;
}

.news-page-item div {
    flex: 1;
}

.news-page-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.news-page-item p {
    font-size: 13px;
    color: #999;
    line-height: 1.7;
}

.news-page-item .news-date {
    font-size: 13px;
    color: #bbb;
    white-space: nowrap;
    flex-shrink: 0;
}

/* ===== Solution Page ===== */
.solution-page-layout {
    padding: 0 0 40px;
}

.solution-page-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #eee;
    margin-bottom: 30px;
}

.solution-page-tabs a {
    padding: 12px 28px;
    font-size: 15px;
    color: #666;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s;
}

.solution-page-tabs a.active,
.solution-page-tabs a:hover {
    color: #2b7de9;
    border-bottom-color: #2b7de9;
}

/* ===== Helpers ===== */
.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-40 {
    margin-top: 40px;
}

/* ===== Shared Motion System ===== */
.motion-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity .5s cubic-bezier(.22, 1, .36, 1),
        transform .5s cubic-bezier(.22, 1, .36, 1);
    transition-delay: var(--motion-delay, 0ms);
}

.motion-reveal.motion-from-left {
    transform: translateX(-32px);
}

.motion-reveal.motion-visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* ===== 网格内容切换过渡（分类/翻页，由 swapGridWithMotion 驱动） ===== */
.grid-switch {
    transition: opacity .2s ease, transform .2s ease;
}

.grid-switch.grid-leaving {
    opacity: 0;
    transform: translateY(12px);
}

/* 带进场动效的卡片：transition 必须同时覆盖 opacity/transform + var(--motion-delay)，
   否则覆盖 .motion-reveal 的过渡，导致进场只剩位移、无淡入无错峰 */
.product-preview-card,
.solution-page-card,
.news-page-list .card,
.news-card,
.faq-item,
.service-card,
.contact-card,
.product-sidebar,
.product-content {
    transition:
        opacity .5s cubic-bezier(.22, 1, .36, 1) var(--motion-delay, 0ms),
        transform .4s cubic-bezier(.22, 1, .36, 1) var(--motion-delay, 0ms),
        box-shadow .35s ease,
        border-color .35s ease;
}

.solution-page-card:hover,
.service-card:hover,
.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 18px 45px rgba(22, 54, 110, .14);
}

.solution-page-card .card-top,
.news-page-list .card-left,
.news-thumb {
    overflow: hidden;
}

.solution-page-card .card-top img,
.news-page-list .card-left img,
.news-thumb img {
    transition: transform .65s cubic-bezier(.22, 1, .36, 1);
}

.solution-page-card:hover .card-top img,
.news-page-list .card:hover .card-left img,
.news-card:hover .news-thumb img {
    transform: scale(1.045);
}

.motion-shine {
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.motion-shine::before {
    content: '';
    position: absolute;
    top: -60%;
    left: -80%;
    width: 42%;
    height: 220%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.42), transparent);
    transform: rotate(18deg);
    transition: left .65s ease;
    pointer-events: none;
    z-index: 1;
}

.motion-shine:hover::before {
    left: 135%;
}

/* ===== 共享 CTA 动效（首页 / 产品页的胶囊按钮共用）=====
   三个 keyframes 由各页按钮复用，统一放这里，避免每个页面重复定义：
     cta-flow-1       单层渐变流动 —— 实心按钮的渐变表面
     cta-flow-2       双层背景，只让描边那层流动 —— 白底 + 渐变发丝边
     hero-cta-breathe 主 CTA 的呼吸光晕 —— 只动 box-shadow，配合 cta-flow-1 用
   配色与对比度取舍见各页内联样式的「CTA」注释段。 */
@keyframes cta-flow-1 {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes cta-flow-2 {
    0%   { background-position: 0 0, 0% 50%; }
    50%  { background-position: 0 0, 100% 50%; }
    100% { background-position: 0 0, 0% 50%; }
}

@keyframes hero-cta-breathe {
    0%, 100% {
        box-shadow: 0 14px 34px rgba(2, 95, 255, .30), 0 0 0 0 rgba(94, 207, 254, .32);
    }
    50% {
        box-shadow: 0 18px 42px rgba(2, 95, 255, .38), 0 0 0 9px rgba(94, 207, 254, .12);
    }
}

/* ===== Nav Toggle (hamburger) ===== */
.nav-toggle {
    display: none;
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: 0;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #1a1a2e;
    border-radius: 2px;
    transition: transform .25s ease, opacity .2s ease;
    transform-origin: center;
}

.header.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
}
.header.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 在桌面端隐藏汉堡菜单专属的“预约演示/电话”入口，外置 .btn 仍是入口 */
.nav-cta,
.nav-phone,
.nav-foot { display: none; }

/* 让下拉菜单以“卡片”为锚点（无论卡片是悬浮还是吸顶都贴在卡片下沿） */
.header .container { position: relative; }

/* ============================================================
   头部「预约演示」CTA（PC）
   ------------------------------------------------------------
   它继承的是 css/style.css 最上面那个通用 .btn 基础类，在头部有三个问题：
   · 渐变按 90deg 平铺 —— #5ECFFE 占了整个左半边，白字压上去只有 1.77:1。
     全站 CTA 里就剩它没做对比度收边
   · 完全没有交互态：没有 :hover、没有 transition、没有 :focus-visible，
     唯一的反馈是 js/main.js 自动挂上的 motion-shine 扫光 ——
     正是之前定过要避免的「太刻意」的那种
   · border-radius: 10px + line-height: 42px 定高居中，
     和首页/产品页已经统一的 24~26px 胶囊 + flex 居中不是一套东西
   ------------------------------------------------------------
   改成与 .btn-box / hero .btn 同一套语言：胶囊 + 同一段流动渐变
   （linear-gradient 与 background-size: 250% 都照搬）+ 折角箭头 + 上浮光晕。
   差别只有一处 —— **渐变不常驻流动**：
   头部是 position: fixed、每个页面全程可见，常驻的渐变位移会一直占着余光。
   这里改成 hover 时 background-position 从 50% 平滑滑到 100%，
   移开再平滑滑回来：一次交互一次流动，而且来回都没有跳变
   （用 transition 而不是 animation，正因如此 animation 挂上/摘掉会瞬跳）。
   ------------------------------------------------------------
   对比度：静止停在 50%，可见窗口是渐变的 image 30%~70%，
   文字整段落在 #025FFF 上（5.14:1）；滑到 100% 时窗口为 60%~100%，
   文字最右缘约 image 87%，仍在 #025FFF→#1E6BF2 段内（≈4.7:1）。
   全程不碰 0%~12% 的浅青段 —— 这就是只走右半程的原因。
   ------------------------------------------------------------
   只在 PC（>1200px）生效；移动端 .header .container > .btn 是 display: none
   （入口已移进全屏菜单的 .nav-cta），本区块不碰它。
   prefers-reduced-motion 由文件末尾的全局 * 规则兜住（过渡时长压到 .01ms）。
   ============================================================ */
@media (min-width: 1201px) {
    .header .container > .btn {
        position: relative;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex: none;
        box-sizing: border-box;
        width: auto;
        min-width: 150px;
        height: 46px;
        margin-left: 28px;
        padding: 0 22px;
        line-height: 1;
        border: none;
        border-radius: 23px;
        font-family: inherit;
        font-weight: 600;
        font-size: 15px;
        letter-spacing: 1.5px;
        text-indent: 1.5px;
        text-decoration: none;
        overflow: hidden;
        isolation: isolate;
        /* 浅青只留两端 0~12% / 90~100%，与首页 .btn-box 同一段渐变 */
        background: linear-gradient(105deg, #5ECFFE 0%, #1E6BF2 12%, #025FFF 40%, #025FFF 62%, #1E6BF2 90%, #5ECFFE 100%);
        background-size: 250% 100%;
        background-position: 50% 50%;
        color: #FFFFFF;
        box-shadow: 0 8px 20px rgba(2, 95, 255, .24), inset 0 1px 0 rgba(255, 255, 255, .40);
        transition: transform .42s cubic-bezier(.22, 1, .36, 1),
                    box-shadow .42s ease,
                    background-position .9s cubic-bezier(.22, 1, .36, 1);
    }

    /* 扫光：js/main.js 会自动给 .btn 挂 motion-shine，它自带一道斜向白光 ::before。
       这里显式关掉（与首页 .btn-box 同一处理），否则 hover 时扫光又从这儿冒出来 */
    .header .container > .btn::before {
        display: none;
    }

    /* 折角箭头，随 currentColor 取色 —— 与首页 / 产品页 CTA 同一画法。
       前探只动 transform、不动 margin：按钮宽度和文字位置纹丝不动 */
    .header .container > .btn::after {
        content: '';
        flex: none;
        width: 8px;
        height: 8px;
        margin-left: 9px;
        border-top: 2px solid currentColor;
        border-right: 2px solid currentColor;
        transform: rotate(45deg) translate(-1px, 1px);
        transition: transform .42s cubic-bezier(.22, 1, .36, 1);
    }

    .header .container > .btn:hover {
        transform: translateY(-2px);
        background-position: 100% 50%;
        box-shadow: 0 16px 34px rgba(2, 95, 255, .36), 0 0 0 7px rgba(94, 207, 254, .16), inset 0 1px 0 rgba(255, 255, 255, .40);
    }

    .header .container > .btn:hover::after {
        transform: rotate(45deg) translate(3px, -3px);
    }

    .header .container > .btn:active {
        transform: translateY(0) scale(.97);
        box-shadow: 0 8px 18px rgba(2, 95, 255, .30), inset 0 1px 0 rgba(255, 255, 255, .40);
    }

    .header .container > .btn:focus-visible {
        outline: 3px solid rgba(2, 95, 255, .38);
        outline-offset: 5px;
    }
}

/* ===== Mobile: Header ===== */
@media (max-width: 1200px) {
    .header {
        /* 默认即满宽占据顶部（知识盒子系页面用独立 navbar，不走本区块）；
           banner 由 mobile.css 加 margin-top 让位 */
        top: 0;
        padding: 0;
        height: 60px;
        transition: padding .3s ease, transform .3s ease, opacity .3s ease;
    }

    /* 吸顶：header 已默认贴顶，位置/高度/内边距都不再变化，
       只让投影渐深示意“钉住”；
       必须显式关掉桌面端的 headerSlideDown 入场动画——
       header 本来就在原位，重播“从上方滑入”会表现为突兀的回弹 */
    .header.header-fixed {
        animation: none;
    }

    .header .container {
        padding: 0 14px;
        border-radius: 0;
        /* 不能加 backdrop-filter：全屏菜单 .nav 是它的子元素，
           backdrop-filter 会把 fixed 后代的包含块变成胶囊本身，菜单就铺不满屏了 */
        background: #fff;
        box-shadow: 0 2px 8px rgba(0, 0, 0, .08);
        transition: border-radius .3s ease, background-color .35s ease, box-shadow .35s ease;
    }

    /* 吸顶后仅加深投影；padding-left 必须写死 14px 覆盖桌面端
       fixed 态的 100px，否则 logo 会向右跳 */
    .header.header-fixed .container {
        padding-left: 14px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, .2);
    }

    .header .nav-toggle span {
        transition: transform .25s ease, opacity .2s ease, background-color .35s ease;
    }
    .logo {
        position: relative;
        width: 90px;
        height: 20px;
    }
    /* 扩大 logo 点击热区（90x20 实际太小） */
    .logo::after {
        content: '';
        position: absolute;
        inset: -14px -12px;
    }

    /* —— 全屏沉浸式菜单：从汉堡按钮位置圆形展开 —— */
    /* 菜单打开时锁定页面滚动 */
    html.nav-lock { overflow: hidden; }

    .nav {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        /* 负层级：铺在白色胶囊栏（logo/开关）之下、页面内容之上（header 自身 z-index: 1000） */
        z-index: -1;
        display: flex;
        flex-direction: column;
        justify-content: center;
        counter-reset: navitem;
        padding: 88px 32px calc(32px + env(safe-area-inset-bottom, 0px));
        background: linear-gradient(150deg, #0d58fc 0%, #1d3f8f 55%, #0b1e46 100%);
        opacity: 0;
        pointer-events: none;
        clip-path: circle(0% at 93% 5%);
        transition: clip-path .55s cubic-bezier(.22, 1, .36, 1), opacity .35s ease;
        overflow-y: auto;
    }

    /* 品牌感装饰圆（与联系我们页信息卡同一套视觉语言） */
    .nav::before,
    .nav::after {
        content: '';
        position: absolute;
        border-radius: 50%;
        pointer-events: none;
    }

    .nav::before {
        width: 320px;
        height: 320px;
        top: -120px;
        right: -96px;
        background: radial-gradient(circle, rgba(255, 255, 255, .14), transparent 70%);
        animation: navOrbFloat 9s ease-in-out infinite;
    }

    @keyframes navOrbFloat {
        50% { transform: translate(-18px, 16px); }
    }

    .nav::after {
        width: 200px;
        height: 200px;
        bottom: -76px;
        left: -60px;
        border: 1px solid rgba(255, 255, 255, .14);
    }

    .header.nav-open .nav {
        opacity: 1;
        pointer-events: auto;
        clip-path: circle(142% at 93% 5%);
    }

    .nav > a {
        position: relative;
        display: flex;
        align-items: baseline;
        gap: 16px;
        counter-increment: navitem;
        padding: 13px 10px;
        font-size: 20px;
        color: rgba(255, 255, 255, .88);
        white-space: nowrap;
        opacity: 0;
        transform: translateX(34px);
        transition: opacity .4s ease, transform .5s cubic-bezier(.22, 1, .36, 1), color .2s ease;
    }

    /* 序号 "01/02/…" */
    .nav > a::before {
        content: counter(navitem, decimal-leading-zero);
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 2px;
        color: rgba(255, 255, 255, .45);
    }

    /* 当前页指示条 */
    .nav > a::after {
        content: '';
        position: absolute;
        left: 0;
        top: 22%;
        bottom: 22%;
        width: 4px;
        border-radius: 2px;
        background: linear-gradient(180deg, #7db4ff, #4f83ff);
        opacity: 0;
        transform: scaleY(0);
        transition: opacity .3s ease .1s, transform .35s cubic-bezier(.22, 1, .36, 1) .1s;
    }

    .nav > a.active {
        color: #fff;
        font-weight: 600;
    }

    .nav > a.active::after {
        opacity: 1;
        transform: none;
    }

    .nav > a:active {
        opacity: .55;
    }

    /* 打开时导航项错峰滑入（8 个导航项 + 底部 CTA 组） */
    .header.nav-open .nav > a {
        opacity: 1;
        transform: none;
    }

    .header.nav-open .nav > a:nth-child(1) { transition-delay: .08s; }
    .header.nav-open .nav > a:nth-child(2) { transition-delay: .12s; }
    .header.nav-open .nav > a:nth-child(3) { transition-delay: .16s; }
    .header.nav-open .nav > a:nth-child(4) { transition-delay: .2s; }
    .header.nav-open .nav > a:nth-child(5) { transition-delay: .24s; }
    .header.nav-open .nav > a:nth-child(6) { transition-delay: .28s; }
    .header.nav-open .nav > a:nth-child(7) { transition-delay: .32s; }
    .header.nav-open .nav > a:nth-child(8) { transition-delay: .36s; }

    /* 底部 CTA 组：预约演示 + 电话直拨 */
    .nav .nav-foot {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-top: 26px;
        padding-top: 22px;
        border-top: 1px solid rgba(255, 255, 255, .16);
        opacity: 0;
        transform: translateY(18px);
        transition: opacity .4s ease, transform .5s cubic-bezier(.22, 1, .36, 1);
    }

    .header.nav-open .nav .nav-foot {
        opacity: 1;
        transform: none;
        transition-delay: .42s;
    }

    .nav .nav-foot a {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 50px;
        border-radius: 14px;
        font-size: 16px;
        color: #fff;
    }

    .nav .nav-cta {
        font-weight: 600;
        background: linear-gradient(135deg, #4f83ff, #7db4ff);
        box-shadow: 0 10px 24px rgba(13, 88, 252, .35);
        transition: transform .18s ease;
    }

    .nav .nav-cta:active { transform: scale(.97); }

    .nav .nav-phone {
        border: 1px solid rgba(255, 255, 255, .35);
    }

    .nav-toggle {
        display: flex;
        width: 40px;
        height: 40px;
        border: 1px solid transparent;
        border-radius: 50%;
        transition: background-color .35s ease, border-color .35s ease, box-shadow .35s ease,
            transform .2s cubic-bezier(.34, 1.56, .64, 1);
    }

    .nav-toggle:active { transform: scale(.88); }

    /* 移动端隐藏外置“预约演示”按钮（功能已经放进下拉菜单） */
    .header .container > .btn {
        display: none;
    }
}

/* ===== Mobile: Footer ===== */
@media (max-width: 1200px) {
    .footer {
        padding: 0 16px;
    }

    .footer-content {
        height: auto;
        flex-direction: column;
        align-items: stretch;
        padding: 28px 0 24px;
        gap: 22px;
    }

    .footer-brand  {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .footer-brand .footer-logo {
        width: 130px;
        height: 30px;
        margin-bottom: 12px;
    }

    .footer-brand .slogan {
        font-size: 14px;
        line-height: 1.6;
    }

    .footer-links {
        height: auto;
        margin-left: 0;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px 22px;
    }

    .footer-links a {
        font-size: 14px;
    }

    .footer-contact {
        width: 100%;
        height: auto;
        border-left: 0;
        border-right: 0;
        border-top: 1px solid rgba(255,255,255,.18);
        border-bottom: 1px solid rgba(255,255,255,.18);
        margin: 0;
        padding: 18px 0;
        gap: 12px;
    }

    .footer-contact .contact-item {
        font-size: 12px;
        align-items: flex-start;
    }

    .footer-contact .contact-item img {
        width: 22px;
        height: 22px;
        margin-right: 12px;
        margin-top: 2px;
        flex-shrink: 0;
    }

    .footer-contact .contact-item span {
        font-size: 14px;
        line-height: 1.5;
        overflow-wrap: anywhere;
    }

    .footer-qr {
        gap: 14px;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .footer-qr img {
        width: 78px;
        height: 78px;
    }

    .footer-bottom {
        height: auto;
        flex-direction: column;
        gap: 6px;
        padding: 16px 8px;
        font-size: 12px;
        line-height: 1.6;
        text-align: center;
    }

    .footer-bottom-item {
        white-space: normal;
    }
}

/* Very narrow phones — tighten further */
@media (max-width: 420px) {
    /* 窄屏全屏菜单：字号与间距收紧一档 */
    .nav > a {
        font-size: 18px;
        padding: 11px 10px;
    }
    .nav .nav-foot a {
        height: 46px;
        font-size: 15px;
    }
    .logo {
        width: 96px;
        height: 22px;
    }
    .footer-qr img {
        width: 64px;
        height: 64px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

    .motion-reveal {
        opacity: 1;
        transform: none;
    }
}
/* Unified content links keep the existing card appearance. */
.product-preview-card,
.home-solution .right-footer .card {
    color: inherit;
    text-decoration: none;
}

.article-list {
    margin: 16px 0;
    padding-left: 28px;
    color: #333;
    font-size: 16px;
    line-height: 2;
}

.article-content a {
    color: #0d58fc;
    text-decoration: underline;
}

/* 了解更多 文字链按钮：箭头滑出 + 下划线展开（颜色跟随 currentColor） */
.link-arrow {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    cursor: pointer;
    padding-bottom: 4px;
    background: none;
    border: none;
}

.link-arrow::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1.5px;
    background: currentColor;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .3s ease;
}

.link-arrow .arr {
    position: relative;
    width: 16px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform .3s ease;
    flex-shrink: 0;
}

.link-arrow .arr::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: translateY(-50%) rotate(45deg);
    box-sizing: border-box;
}

.link-arrow:hover::after {
    transform: scaleX(1);
}

.link-arrow:hover .arr {
    transform: translateX(4px);
}

/* 移动端 <picture> 包裹层：布局透明，避免 inline picture 盒子破坏 flex/绝对定位子元素 */
.pic-mobile-webp {
    display: contents;
}