/* =======================================================
   1. 引入自己服务器/CDN上已经分包好的阿里巴巴普惠体
   ======================================================= */
@import url('/homefile/AlibabaPuHuiTi-3-45-Light/result.css');
@import url('/homefile/AlibabaPuHuiTi-3-55-Regular/result.css');
@import url('/homefile/AlibabaPuHuiTi-3-85-Bold/result.css');


/* =======================================================
      2. 全局样式重置
      ======================================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    list-style: none;
    text-decoration: none;
    outline: none;
}

body {
    /* 统一使用主家族名字，浏览器会根据下方的 font-weight 自动匹配到对应的字体文件 */
    font-family: "Alibaba PuHuiTi 3.0 55 Regular", sans-serif;
    font-weight: 400;
    background-color: #ffffff;
    margin: 0;
    -webkit-font-smoothing: antialiased;
    width: 100%;
    overflow-x: hidden;
}

html {
    font-size: 62.5%;
}

img {
    object-fit: cover;
    vertical-align: middle;
}

img:not(.none) {
    max-width: 100%;
    max-height: 100%;
}

button,
input,
textarea,
select {
    border: none;
    cursor: pointer;
    font-family: inherit;
}

a {
    text-decoration: none;
    color: inherit;
}

ul,
li {
    list-style: none;
    padding: 0;
    margin: 0;
}

@keyframes img-shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

/* ============== 懒加载基础（兼容旧的 data-empty 策略） ============== */
.lazy-picture {
    display: block;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.25, 1);
    background-color: transparent;
}

.lazy-picture.loaded {
    opacity: 1;
}

.lazy-picture img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ============== 商米同款：模糊预览 → 真图过渡 ==============
   .blur-lazy 的 <img> 一开始就是模糊缩略图（约 50% 模糊感）
   CSS 再叠加 blur(8px) 把上采样痕迹和压缩瑕疵盖掉，
   真图就位后过渡到清晰态。曲线参考 Material easing。
   ----------------------------------------------------------- */
.blur-lazy {
    opacity: 1;
    /* 覆盖 .lazy-picture 的 opacity:0 */
    overflow: hidden;
    background-color: #f3f3f3;
}

.blur-lazy img {
    filter: blur(8px);
    transform: scale(1.04);
    /* 遮住 blur 边缘的羽化区 */
    transition:
        filter 0.6s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.6s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.4s ease;
    will-change: filter, transform;
}

.blur-lazy.loaded img {
    filter: blur(0);
    transform: scale(1);
}

.slide-item,
.img-item,
.case-card,
.partners-bg,
.news-left-img,
.footer-bg,
.qrcode-wrapper {
    position: relative;
    overflow: hidden;
}

/* 旧 data-empty 流程下未加载状态的骨架光晕。
   .blur-lazy 自身已有模糊图，无需骨架，所以 :not(.blur-lazy) 排除掉 */
.slide-item:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.img-item:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.case-card:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.partners-bg:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.news-left-img:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.footer-bg:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.qrcode-wrapper:has(.lazy-picture:not(.blur-lazy):not(.loaded)) {
    background: linear-gradient(90deg, #e8e8e8 25%, #f5f5f5 50%, #e8e8e8 75%);
    background-size: 200% 100%;
    animation: img-shimmer 1.5s ease-in-out infinite;
}

.slide-item:has(.lazy-picture:not(.blur-lazy):not(.loaded)),
.footer-bg:has(.lazy-picture:not(.blur-lazy):not(.loaded)) {
    background: linear-gradient(90deg, #1a1a2e 25%, #2a2a3e 50%, #1a1a2e 75%);
}

/* =======================================================
      3. 页面模块样式 
      ======================================================= */
.banner-container {
    position: relative;
    width: 100%;
    height: 750px;
    overflow: hidden;
    background-color: #000;
}

.slide-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 1;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.slide-item.active {
    opacity: 1;
    z-index: 2;
}

.slide-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.banner-controls {
    position: absolute;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    width: min(1400px, calc(100% - 80px));
    display: flex;
    gap: 20px;
    z-index: 10;
}

.pagination-item {
    position: relative;
    width: 140px;
    cursor: pointer;
    padding: 30px 0 10px 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.pagination-title {
    color: #fff;
    font-size: 14px;
    margin-bottom: 12px;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.pagination-item:hover .pagination-title {
    opacity: 1;
    transform: translateY(0);
}

.bar-bg {
    width: 100%;
    height: 2px;
    background-color: hsla(0, 0%, 100%, 0.2);
    border-radius: 1px;
    overflow: hidden;
}

.bar-progress {
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    transform-origin: left;
    transform: scaleX(0);
}

.showcase-wrapper {
    width: 100%;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    background-color: #ffffff;
    padding: 80px 40px 0 40px;
}

.showcase-header {
    text-align: center;
    margin-bottom: 50px;
}

.showcase-title {
    font-size: 40px;
    font-weight: 700;
    /* 将自动触发粗体字包渲染 */
    color: #333;
    margin-bottom: 30px;
}

.showcase-desc {
    font-size: 16px;
    color: #666;
}

.showcase-container {
    width: 100%;
    max-width: 100vw;
    height: 700px;
    position: relative;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
}

.image-stage {
    position: absolute;
    top: 0;
    left: 0;
    width: calc(100% - 320px);
    height: 100%;
    z-index: 1;
    overflow: visible;
    background-color: transparent;
}

.img-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    visibility: hidden;
    opacity: 1;
}

.img-item a {
    display: block;
    width: 100%;
    height: 100%;
}

.img-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.nav-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 70px;
    height: 100%;
    z-index: 100;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
}

.nav-item[data-index="0"] {
    background-color: #185bde;
}

.nav-item[data-index="1"] {
    background-color: #1149c9;
}

.nav-item[data-index="2"] {
    background-color: #0b35a1;
}

.nav-item[data-index="3"] {
    background-color: #051c66;
}

.nav-item span {
    writing-mode: vertical-lr;
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 12px;
    z-index: 2;
    display: inline-block;
    height: 130px;
    text-align: left;
    transition: color 0.4s ease;
}

.nav-item.active span {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
}

.orange-indicator {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' preserveAspectRatio='none'%3E%3Cpath d='M 45,0 L 45,13 Q 45,17 52,19.5 L 90,30 Q 96,32 96,36 L 96,100 L 100,100 L 100,0 Z' fill='%23FF8C1F'/%3E%3C/svg%3E%0A");
    background-size: 100% 100%;
    background-repeat: no-repeat;
}

.case-section {
    width: 100%;
    position: relative;
    padding: 80px 0 80px 0;
    text-align: center;
    background-color: #ffffff;
    overflow-x: hidden;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: #333;
    margin-bottom: 30px;
}

.tabs-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.tab-btn {
    padding: 8px 24px;
    font-size: 15px;
    color: #666;
    background-color: #f5f5f5;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.tab-btn.active {
    background-color: #0066ff;
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.carousel-viewport {
    width: 100%;
    position: relative;
    overflow: hidden;
    perspective: 1200px;
}

.carousel-track {
    display: flex;
    position: absolute;
    top: 20px;
    left: 0;
    width: 100%;
}

.case-card {
    flex-shrink: 0;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
    -webkit-mask-image: -webkit-radial-gradient(white, black);
    mask-image: radial-gradient(white, black);
}

.case-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0) 100%);
    padding: 40px 24px 24px 24px;
    text-align: left;
    pointer-events: none;
}

.card-title {
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.6);
}

.company-intro-section {
    width: 100%;
    height: 1100px;
    position: relative;
    overflow: hidden;
    background-color: #ffffff;
    margin-bottom: 80px;
}

.company-intro-section .section-bg-wrapper {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 0;
}

.company-intro-section .section-bg-figure img {
    object-position: center center;
}

.company-intro-container {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: stretch;
}

.company-intro-content {
    width: 1400px;
    flex: 0 0 1400px;
    height: 100%;
    box-sizing: border-box;
    padding: 150px 0 96px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: space-around;
    gap: 0;
}

.intro-left {
    align-self: stretch;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: auto;
    margin-bottom: 70px;
    padding-left: 180px;
}

.intro-m-title {
    display: none;
}

.intro-title {
    font-size: 50px;
    font-weight: 500;
    line-height: 1.2;
    margin: 0;
    text-align: left;
    width: 100%;
    white-space: normal;
}

.intro-title-text {
    display: block;
    background: linear-gradient(to bottom, #36495c 50%, #cccccc 50%);
    background-size: 100% 200%;
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    view-timeline-name: --intro-reveal;
    view-timeline-axis: block;
    animation-timeline: --intro-reveal;
    -webkit-animation-timeline: --intro-reveal;
    animation-name: reveal-text;
    animation-duration: 1ms;
    animation-fill-mode: both;
}

.intro-title-text:nth-child(1) {
    animation-range: entry 10% cover 35%;
    -webkit-animation-range: entry 10% cover 35%;
}

.intro-title-text:nth-child(2) {
    animation-range: entry 35% cover 60%;
    -webkit-animation-range: entry 35% cover 60%;
}

.intro-title-em {
    font-style: normal;
    font-family: "Alibaba PuHuiTi 3.0 45 Light", sans-serif;
    /* Light 是独立家族名，需单独声明 */
    font-weight: 400;
    color: #005cff;
    -webkit-text-fill-color: #005cff;
    background: none;
    -webkit-background-clip: border-box;
    background-clip: border-box;
}

@keyframes reveal-text {
    from {
        background-position: 0% 100%;
    }

    to {
        background-position: 0% 0%;
    }
}

.intro-right {
    flex: none;
    align-self: flex-end;
    text-align: left;
    width: auto;
    max-width: 760px;
    height: auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.intro-desc {
    font-size: 16px;
    line-height: 2;
    color: #444;
    margin-bottom: 42px;
    text-align: justify;
    padding-left: 50px;
    max-width: 500px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px 50px;
    margin-bottom: 48px;
    padding-left: 50px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 48px;
    font-family: "Alibaba PuHuiTi 3.0 45 Light", sans-serif;
    color: #0066ff;
    line-height: 1;
    margin-bottom: 10px;
}

.stat-plus {
    font-size: 24px;
    font-weight: 500;
    margin-left: 4px;
    vertical-align: super;
}

.stat-label {
    font-size: 14px;
    color: #0066ff;
}

.intro-more-btn {
    width: 200px;
    text-align: center;
    display: inline-block;
    padding: 12px 40px;
    border: 1px solid #0066ff;
    color: #0066ff;
    text-decoration: none;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background-color: transparent;
    margin-left: 50px;
}

.intro-more-btn:hover {
    background-color: #0066ff;
    color: #ffffff;
}

.section-bg-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.section-bg-figure {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
}

.partners-section {
    width: 100%;
    position: relative;
    height: 620px;
    overflow: hidden;
    background: #fff;
}

.partners-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.partners-bg .lazy-picture,
.partners-bg img {
    width: 100%;
    height: 100%;
    display: block;
}

.partners-bg img {
    object-fit: cover;
    object-position: center;
}

.partners-container {
    position: relative;
    z-index: 1;
    width: min(1400px, calc(100% - 80px));
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0;
}

.partners-text {
    max-width: 420px;
    height: 100%;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.partners-title {
    font-size: 40px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
}

.partners-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

@media screen and (max-width: 1440px) {

    .banner-container,
    .showcase-container {
        height: 600px;
    }

    .nav-item {
        width: 60px;
    }

    .nav-item span {
        font-size: 18px;
        letter-spacing: 10px;
        height: 110px;
    }
}

@media screen and (max-width: 1024px) {

    .banner-container,
    .showcase-container {
        height: 500px;
    }

    .nav-item {
        width: 50px;
    }

    .nav-item span {
        font-size: 16px;
        letter-spacing: 8px;
        height: 100px;
    }
}

@media screen and (max-width: 768px) {

    .banner-container,
    .showcase-container {
        height: 400px;
    }

    .nav-item {
        width: 50px;
    }

    .nav-item span {
        font-size: 14px;
        letter-spacing: 6px;
        height: 80px;
    }
}

.news-section {
    padding: 80px 0 120px 0;
    background-color: #ffffff;
}

.news-header {
    text-align: center;
    margin-bottom: 50px;
}

.news-title {
    font-size: 40px;
    font-weight: 700;
    color: #222;
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.news-tab-btn {
    padding: 8px 28px;
    font-size: 16px;
    color: #666;
    background-color: #f4f5f7;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.news-tab-btn.active {
    background-color: #005cff;
    color: #ffffff;
    font-weight: 600;
}

.news-tab-link {
    display: inline-block;
    line-height: 1.5;
    text-decoration: none;
}

.news-tab-link:hover {
    background-color: #005cff;
    color: #ffffff;
}

.news-container {
    max-width: 1400px;
    margin: 0 auto;
    overflow: hidden;
}

.news-content-wrapper {
    display: none;
    width: 100%;
    gap: 40px;
}

.news-content-wrapper.active {
    display: flex;
}

.news-left {
    flex: 1;
    width: 0;
    display: flex;
    flex-direction: column;
    position: relative;
    cursor: pointer;
    border-radius: 16px;
    overflow: hidden;
}

.news-left-img {
    width: 100%;
    height: 400px;
    overflow: hidden;
    background-color: #eee;
}

.news-left-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.news-left:hover .news-left-img img {
    transform: scale(1.05);
}

.news-left-date {
    position: absolute;
    left: 30px;
    top: 310px;
    background: linear-gradient(45deg, #005cff, #63b0ec);
    color: #ffffff;
    text-align: center;
    padding: 12px 20px;
    border: 4px solid #ffffff;
    z-index: 2;
}

.news-left-date .d {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 5px;
}

.news-left-date .ym {
    font-size: 13px;
}

.news-left-text {
    background-color: #f0f1f2;
    flex-grow: 1;
    padding: 60px 30px 40px 30px;
}

.news-left-text h3 {
    font-size: 20px;
    font-weight: 700;
    color: #222;
    margin-bottom: 15px;
    line-height: 1.4;
    transition: color 0.3s;
}

.news-left:hover .news-left-text h3 {
    color: #005cff;
}

.news-left-text p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-right {
    flex: 1;
    width: 0;
    display: flex;
    flex-direction: column;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 45px 0;
    border-top: 1px dashed #b5b6ba;
    position: relative;
    cursor: pointer;
}

.news-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: -1px;
    width: 100px;
    height: 0;
    border-top: 2px solid #005cff;
    z-index: 5;
    transition: width 0.3s;
}

.news-item:hover::before {
    width: 130px;
}

.news-date {
    width: 100px;
    flex-shrink: 0;
    color: #005cff;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    padding-right: 22px;
    border-right: 1px solid #d0e4ff;
}

.news-date .d {
    font-size: 32px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 6px;
}

.news-date .ym {
    font-size: 13px;
}

.news-info {
    padding-left: 22px;
    flex-grow: 1;
    overflow: hidden;
}

.news-info h4 {
    font-size: 18px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s;
}

.news-info p {
    font-size: 14px;
    color: #888;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-item:hover .news-info h4 {
    color: #005cff;
}

.contact-section {
    width: 100%;
    height: 280px;
    position: relative;
    overflow: hidden;
    background-color: #1a3a8a;
}

.contact-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.contact-bg .lazy-picture,
.contact-bg picture {
    display: block;
    width: 100%;
    height: 100%;
}

.contact-bg img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
}

.contact-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    display: flex;
    justify-content: center;
    align-items: stretch;
}

.contact-container {
    width: 1200px;
    flex: 0 0 1200px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0;
}

.site-footer {
    width: 100%;
    position: relative;
    overflow: hidden;
    background-color: #f5f5f7;
}

.footer-overlay {
    position: relative;
    width: 100%;
    z-index: 3;
    display: flex;
    justify-content: center;
    align-items: stretch;
}

.footer-container {
    width: 1200px;
    flex: 0 0 1200px;
    margin: 0;
    padding: 70px 0 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0;
}

.hotline-area {
    width: auto;
    margin: 0;
}

.hotline-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    color: #ffffff;
    text-align: left;
}

.hotline-row {
    display: flex;
    align-items: baseline;
}

.hotline-title {
    font-size: 24px;
    font-family: "Alibaba PuHuiTi 3.0 45 Light", sans-serif;
}

.hotline-number {
    font-size: 28px;
    font-family: "Alibaba PuHuiTi 3.0 45 Light", sans-serif;
    margin-left: 10px;
}

.consult-btn {
    display: inline-block;
    width: 120px;
    margin-top: 24px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 4px;
    color: #ffffff;
    text-decoration: none;
    text-align: center;
    font-size: 14px;
    transition: all 0.3s ease;
    padding: 4px 10px;
}

.consult-btn:hover {
    background-color: #ffffff;
    color: #0066ff;
}

.footer-nav-area {
    display: flex;
    flex-direction: column;
    gap: 50px;
    padding-bottom: 20px;
}

.footer-nav-row {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    gap: 90px;
}

.footer-links-grid {
    flex: 1 1 auto;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0 40px;
    min-width: 0;
}

.footer-brand {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 24px;
}

.footer-logo {
    margin: 0;
    display: flex;
    align-items: center;
}

.footer-logo .footer-logo-light {
    display: none;
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-social {
    display: flex;
    align-items: center;
    gap: 16px;
}

.social-item {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #e6e7eb;
    color: #555;
    transition: background 0.25s ease, color 0.25s ease;
}

.social-icon svg,
.social-icon img {
    width: 22px;
    height: 22px;
    fill: currentColor;
    object-fit: contain;
    display: block;
}

.social-item:hover .social-icon {
    background: #ffffff;
    color: #ffffff;
}

.social-popup {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) translateY(-6px);
    width: 180px;
    padding: 8px;
    background: #ffffff;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    z-index: 5;
}

.social-popup::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-bottom-color: #ffffff;
}

.social-popup img {
    display: block;
    width: 100%;
    height: 150px;
    object-fit: contain;
}

.social-item:hover .social-popup {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

.footer-column {
    display: flex;
    flex-direction: column;
}

.column-title {
    font-size: 15px;
    color: #777;
    font-weight: 600;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
    white-space: nowrap;
    cursor: pointer;
    transition: color 0.3s ease-in-out;
}

.column-title::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 70%;
    height: 2px;
    background-image: linear-gradient(to right, #ff8c1f 50%, #979797 50%);
    background-size: 200% 100%;
    background-position: right bottom;
    backface-visibility: hidden;
    transform: perspective(1px) translateZ(0);
    transition: background-position 0.5s ease-in-out;
}

.column-title:hover {
    color: #ff8c1f;
}

.column-title:hover::after {
    background-position: left bottom;
}

.footer-column ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #777;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
    white-space: nowrap;
    position: relative;
    display: inline-block;
    padding-bottom: 2px;
}

.footer-column ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: #ff8c1f;
    transition: width 0.3s ease-in-out;
    transform-origin: left bottom;
    transform: scaleY(0.5);
    backface-visibility: hidden;
}

.footer-column ul li a:hover {
    color: #ff8c1f;
}

.footer-column ul li a:hover::after {
    width: 100%;
}

.friend-links-box {
    width: 100%;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0 16px;
    padding: 0;
}

.friend-title {
    flex: 0 0 auto;
    font-size: 14px;
    color: #777;
    margin: 0;
}

.friend-links-list {
    flex: 1 1 auto;
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0 28px;
    overflow: hidden;
}

.friend-links-list a {
    color: #777;
    text-decoration: none;
    font-size: 13px;
    white-space: nowrap;
    transition: color 0.3s;
}

.friend-links-list a:hover {
    color: #ff8c1f;
}

.footer-bottom {
    width: 100%;
    margin-top: auto;
    border-top: 1px solid #d7d7d7;
    padding: 18px 0 28px;
}

.footer-copyright {
    width: 100%;
    font-size: 12px;
    color: #888;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0 12px;
    border: 0;
    padding: 0;
    max-width: none;
}

.qrcode-wrapper {
    display: none;
    line-height: 0;
}

.qrcode-wrapper img {
    width: 100px;
    height: auto;
    border-radius: 6px;
}

/* =======================================================
      4. 导航及交互相关样式
      ======================================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    min-width: 1300px;
    height: 76px;
    z-index: 9999;
    padding: 0 calc((100% - 1300px) / 2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: .6s ease
}

.header:after {
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    background: #FFFFFF;
    left: 0;
    z-index: -1;
    opacity: 0;
    transition: 0.8s
}

.header .logo {
    display: block;
    position: relative
}

.header .logo img {
    display: block;
    width: 130px;
    transition: .6s
}

.header .logo img:nth-child(2) {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0
}

.header .header_r {
    display: flex;
    align-items: center;
    height: 100%;
    justify-content: flex-end;
}

.header .header_r .nav {
    display: flex;
    align-items: center;
    height: 100%
}

.header .header_r .nav li {
    height: 100%
}

.header .header_r .nav li .first {
    margin: 0 29px;
    height: 100%;
    display: flex;
    align-items: center;
    position: relative
}

.header .header_r .nav li .first a {
    height: 100%;
    line-height: 76px;
    display: block;
    font-size: 16px;
    color: #FFFFFF;
    transition: 0.6s
}

.header .header_r .nav li .first a:hover {
    color: #005CFF !important
}

.header .header_r .nav li .first:after {
    content: "";
    width: 100%;
    height: 2px;
    background: #005CFF;
    position: absolute;
    bottom: 0;
    left: 0;
    transition: 0.6s;
    transform: scaleX(0)
}

.header .header_r .nav li .first:hover a {
    color: #005CFF !important
}

.header .header_r .nav li .first:hover:after {
    transform: scaleX(1)
}

.header .header_r .nav li .first.active:after {
    transform: scaleX(1);
    background: #FFFFFF
}

.header .header_r .nav li .second {
    display: flex;
    position: fixed;
    top: 76px;
    left: 0;
    z-index: 999;
    background: #FFFFFF;
    border-top: 1px solid #D4D4D4;
    width: 100%;
    min-width: 1300px;
    clip-path: inset(0 0 100% 0);
    transition: 0.8s cubic-bezier(0.18, 0.73, 0.13, 0.99);
    justify-content: center;
}

.header .header_r .nav li .second .l {
    padding: 60px 40px 0 0;
    width: 400px;
    border-right: 1px solid #D9D9D9
}

.header .header_r .nav li .second .l .item {
    display: flex;
    align-items: center;
    width: 250px;
    height: 53px;
    padding: 0 0 0 29px;
    position: relative;
    cursor: pointer;
    transform: translateY(50px);
    opacity: 0;
    pointer-events: none;
    transition: .6s
}

.header .header_r .nav li .second .l .item:after {
    content: "";
    width: 100%;
    height: 100%;
    border-radius: 27px;
    background: #005CFF;
    position: absolute;
    top: 0;
    left: 0;
    transition: 0.6s;
    opacity: 0
}

.header .header_r .nav li .second .l .item p {
    font-size: 16px;
    color: #333333;
    white-space: nowrap;
    position: relative;
    z-index: 2;
    transform: translateX(-32px);
    transition: 0.6s
}

.header .header_r .nav li .second .l .item img {
    display: block;
    width: 22px;
    margin: 0 10px 0 0;
    position: relative;
    z-index: 2;
    opacity: 0;
    transition: 0.6s
}

.header .header_r .nav li .second .l .item:not(:nth-last-child(1)) {
    margin: 0 0 6px
}

.header .header_r .nav li .second .l .item.on p {
    transform: translateX(0);
    color: #fff !important
}

.header .header_r .nav li .second .l .item.on img {
    opacity: 1
}

.header .header_r .nav li .second .l .item.on:after {
    opacity: 1
}

.header .header_r .nav li .second .l .item:hover p {
    color: #005CFF
}

.header .header_r .nav li .second .l_text {
    width: 400px;
    padding: 50px 40px 0 0;
    transform: translateY(25px);
    opacity: 0;
    transition: 1s
}

.header .header_r .nav li .second .l_text h5 {
    font-weight: 700;
    font-size: 18px;
    color: #111111;
    margin: 0 0 25px
}

.header .header_r .nav li .second .l_text p {
    font-family: "Alibaba PuHuiTi 3.0 45 Light", sans-serif;
    font-size: 14px;
    color: #666666
}

.header .header_r .nav li .second .l_text .more {
    display: flex;
    align-items: center;
    margin: 40px 0 0
}

.header .header_r .nav li .second .l_text .more p {
    font-size: 14px;
    color: #111111;
    margin: 0 5px 0 0;
    transition: 0.6s
}

.header .header_r .nav li .second .l_text .more .iconfont {
    font-size: 14px;
    color: #005CFF
}

.header .header_r .nav li .second .l_text .more:hover p {
    color: #005CFF
}

.header .header_r .nav li .second .r_link {
    padding: 55px 0 50px 40px;
    display: flex;
    flex-wrap: wrap;
    width: 800px;
    position: relative;
    transform: translateY(25px);
    opacity: 0;
    transition: 1s
}

.header .header_r .nav li .second .r_link:after {
    content: "";
    width: 1px;
    height: calc(100% - 90px);
    background: #000000;
    opacity: 0.1;
    position: absolute;
    top: 40px;
    left: 0
}

.header .header_r .nav li .second .r_link .a_item {
    display: flex;
    align-items: center;
    margin-bottom: 50px
}

.header .header_r .nav li .second .r_link .a_item p {
    font-size: 16px;
    color: #111111;
    transition: 0.6s;
    margin: 0 0 0 20px
}

.header .header_r .nav li .second .r_link .a_item .iconfont {
    font-size: 20px;
    color: #111111
}

.header .header_r .nav li .second .r_link .a_item:not(:nth-child(4n)) {
    margin: 0 105px 50px 0
}

.header .header_r .nav li .second .r_link .a_item:hover p,
.header .header_r .nav li .second .r_link .a_item:hover .iconfont,
.header .header_r .nav li .second .r_link .a_item.on p,
.header .header_r .nav li .second .r_link .a_item.on .iconfont {
    color: #005CFF
}

.header .header_r .nav li .second .r {
    width: 70vw;
    padding: 60px 0 60px 3vw;
    transform: translateY(25px);
    opacity: 0;
    transition: 1s
}

.header .header_r .nav li .second .r .mater {
    display: none
}

.header .header_r .nav li .second .r .mater.on {
    display: block
}

.header .header_r .nav li .second .r .mater h1 {
    font-weight: 700;
    font-size: 30px;
    color: #111111;
    margin: 0 0 25px
}

.header .header_r .nav li .second .r .mater .flex {
    display: flex;
    flex-wrap: wrap;
    width: 1050px
}

.header .header_r .nav li .second .r .mater .flex .item {
    display: block;
    width: 160px;
    padding: 14px 0 23px;
    text-align: center;
    margin-bottom: 30px;
    transition: 0.6s
}

.header .header_r .nav li .second .r .mater .flex .item .img {
    width: 80%;
    margin: 0 auto 18px;
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center
}

.header .header_r .nav li .second .r .mater .flex .item .img img {
    display: block;
    max-width: 100%;
    max-height: 100%
}

.header .header_r .nav li .second .r .mater .flex .item h5 {
    font-weight: 700;
    font-size: 14px;
    color: #111111;
    width: 90%;
    margin: 0 auto 8px;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: 0.6s
}

.header .header_r .nav li .second .r .mater .flex .item p {
    font-family: "Alibaba PuHuiTi 3.0 45 Light", sans-serif;
    font-size: 12px;
    color: #333333;
    width: 90%;
    margin: 0 auto;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: 0.6s
}

.header .header_r .nav li .second .r .mater .flex .item:not(:nth-child(6n)) {
    margin: 0 17px 30px 0
}

.header .header_r .nav li .second .r .mater .flex .item:hover {
    background: #005CFF
}

.header .header_r .nav li .second .r .mater .flex .item:hover h5,
.header .header_r .nav li .second .r .mater .flex .item:hover p {
    color: #FFFFFF
}

.header .header_r .nav li .second .r .mater .more {
    width: 1050px
}

.header .header_r .nav li .second .r .mater .more a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 121px;
    height: 41px;
    border-radius: 20px;
    border: 1px solid #005CFF;
    font-size: 14px;
    color: #005CFF;
    transition: 0.6s;
    margin: 0 0 0 auto
}

.header .header_r .nav li .second .r .mater .more a:hover {
    background: #005CFF;
    color: #FFFFFF
}

.header .header_r .nav li:hover .second {
    clip-path: inset(0 0 0% 0)
}

.header .header_r .nav li:hover .second .l .item {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto
}

.header .header_r .nav li:hover .second .l .item:nth-child(1) {
    transition-delay: .1s
}

.header .header_r .nav li:hover .second .l .item:nth-child(2) {
    transition-delay: .2s
}

.header .header_r .nav li:hover .second .l .item:nth-child(3) {
    transition-delay: .3s
}

.header .header_r .nav li:hover .second .l .item:nth-child(4) {
    transition-delay: .4s
}

.header .header_r .nav li:hover .second .l .item:nth-child(5) {
    transition-delay: .5s
}

.header .header_r .nav li:hover .second .l .item:nth-child(6) {
    transition-delay: .6s
}

.header .header_r .nav li:hover .second .r,
.header .header_r .nav li:hover .second .l_text {
    transform: translateY(0px);
    opacity: 1
}

.header .header_r .nav li:hover .second .r_link {
    transition-delay: 0.2s;
    transform: translateY(0px);
    opacity: 1
}

.header .header_r .lan {
    margin: 0 0 0 29px
}

.header .header_r .lan .iconfont {
    font-size: 20px;
    color: #FFFFFF;
    transition: 0.6s
}

.header .header_r .lan .iconfont:hover {
    color: #005CFF
}

.header .header_r .search {
    position: relative
}

.header .header_r .search .search_btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 28px;
    background: #FFFFFF;
    border-radius: 14px;
    cursor: pointer;
    transition: 0.6s
}

.header .header_r .search .search_btn>p {
    font-size: 14px;
    color: #000000;
    margin: 0 5px 0 0;
    transition: 0.6s
}

.header .header_r .search .search_btn .iconfont {
    font-size: 16px;
    color: #000000;
    transition: 0.6s
}

.header .header_r .search .search_btn:hover {
    background: #005CFF
}

.header .header_r .search .search_btn:hover>p,
.header .header_r .search .search_btn:hover .iconfont {
    color: #FFFFFF
}

.header .header_r .search .close {
    width: 30px;
    height: 30px;
    background: #005CFF;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 0;
    opacity: 0;
    pointer-events: none;
    transition: 0.6s;
    cursor: pointer
}

.header .header_r .search .close span {
    display: block;
    position: absolute;
    width: 18px;
    height: 1px;
    background: #FFFFFF;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg)
}

.header .header_r .search .close span:nth-child(2) {
    transform: translate(-50%, -50%) rotate(-45deg)
}

.header .header_r .search.click .search_btn {
    opacity: 0
}

.header .header_r .search.click .close {
    opacity: 1;
    pointer-events: auto
}

.header .search_box {
    position: fixed;
    width: 100vw;
    height: 100vh;
    background: #F7F7F7;
    left: 0;
    top: 0;
    z-index: -1;
    display: flex;
    align-items: center;
    justify-content: center;
    clip-path: inset(0 0 100% 0);
    transition: 1.4s cubic-bezier(0.18, 0.73, 0.13, 0.99)
}

.header .search_box .wrap {
    width: 1000px;
    opacity: 0;
    transform: translateY(40px);
    transition: 0.6s
}

.header .search_box .wrap form {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    border-bottom: 1px solid rgba(17, 17, 17, 0.2);
    padding: 0 20px 15px 10px;
    margin: 0 0 40px
}

.header .search_box .wrap form input {
    width: 900px;
    font-size: 20px;
    color: #111111;
    border: unset;
    background: unset
}

.header .search_box .wrap form input::placeholder {
    color: #999999
}

.header .search_box .wrap form button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 28px;
    background: #111111;
    border-radius: 14px;
    transition: 0.6s
}

.header .search_box .wrap form button p {
    font-size: 14px;
    color: #FFFFFF;
    margin: 0 7px 0 0
}

.header .search_box .wrap form button .iconfont {
    font-size: 14px;
    color: #FFFFFF
}

.header .search_box .wrap form button:hover {
    background: #005CFF
}

.header .search_box .wrap .content h5 {
    font-weight: 700;
    font-size: 24px;
    color: #111111;
    margin: 0 0 40px
}

.header .search_box .wrap .content .box {
    height: 500px
}

.header .search_box .wrap .content .box a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 0 26px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    margin: 0 0 28px;
    position: relative
}

.header .search_box .wrap .content .box a:after {
    content: "";
    width: 100%;
    height: 1px;
    background: #005CFF;
    position: absolute;
    left: 0;
    bottom: 0;
    transform: scaleX(0);
    transform-origin: left;
    transition: 0.6s
}

.header .search_box .wrap .content .box a .l {
    display: flex;
    align-items: center
}

.header .search_box .wrap .content .box a .l span {
    font-size: 16px;
    color: #005CFF
}

.header .search_box .wrap .content .box a .l p {
    font-size: 16px;
    color: #333333;
    transition: 0.6s
}

.header .search_box .wrap .content .box a .r {
    font-size: 16px;
    color: #333333
}

.header .search_box .wrap .content .box a:hover:after {
    transform: scaleX(1)
}

.header .search_box .wrap .content .box a:hover .l p {
    color: #005CFF
}

.header .search_box.active {
    clip-path: inset(0 0 0% 0)
}

.header .search_box.active .wrap {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.2s
}

.header.on {
    background: #FFFFFF
}

.header.on .logo img:nth-child(1) {
    opacity: 0
}

.header.on .logo img:nth-child(2) {
    opacity: 1
}

.header.on .header_r .nav li .first a {
    color: #333333
}

.header.on .header_r .nav li .first.active:after {
    background: #005CFF
}

.header.on .header_r .lan .iconfont {
    color: #333333
}

.header.on .header_r .search .search_btn {
    background: #005CFF
}

.header.on .header_r .search .search_btn>p,
.header.on .header_r .search .search_btn .iconfont {
    color: #FFFFFF
}

.header.header_on {
    background: #FFFFFF
}

.header.header_on .logo img:nth-child(1) {
    opacity: 0
}

.header.header_on .logo img:nth-child(2) {
    opacity: 1
}

.header.header_on .header_r .nav li .first a {
    color: #333333
}

.header.header_on .header_r .nav li .first.active:after {
    background: #005CFF
}

.header.header_on .header_r .lan .iconfont {
    color: #333333
}

.header.header_on .header_r .search .search_btn {
    background: #005CFF
}

.header.header_on .header_r .search .search_btn>p,
.header.header_on .header_r .search .search_btn .iconfont {
    color: #FFFFFF
}

.header.header_search {
    background: #FFFFFF
}

.header.header_search:after {
    opacity: 1
}

.header.header_search .logo img:nth-child(1) {
    opacity: 0
}

.header.header_search .logo img:nth-child(2) {
    opacity: 1
}

.header.header_search .header_r .nav li .first a {
    color: #333333
}

.header.header_search .header_r .nav li .first.active:after {
    background: #005CFF
}

.header.header_search .header_r .lan .iconfont {
    color: #333333
}

.header.header_search .header_r .search .search_btn {
    background: #005CFF
}

.header.header_search .header_r .search .search_btn>p,
.header.header_search .header_r .search .search_btn .iconfont {
    color: #FFFFFF
}

.header.head_nav_hover {
    background: #FFFFFF
}

.header.head_nav_hover .logo img:nth-child(1) {
    opacity: 0
}

.header.head_nav_hover .logo img:nth-child(2) {
    opacity: 1
}

.header.head_nav_hover .header_r .nav li .first a {
    color: #333333
}

.header.head_nav_hover .header_r .nav li .first.active:after {
    background: #005CFF
}

.header.head_nav_hover .header_r .lan .iconfont {
    color: #333333
}

.header.head_nav_hover .header_r .search .search_btn {
    background: #005CFF
}

.header.head_nav_hover .header_r .search .search_btn>p,
.header.head_nav_hover .header_r .search .search_btn .iconfont {
    color: #FFFFFF
}

.sidebar {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    right: 36px;
    opacity: 0;
    pointer-events: none;
    transition: 0.6s
}

.sidebar.active {
    opacity: 1;
    pointer-events: auto
}

.sidebar .item {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin: 0 0 16px;
    transition: 0.6s;
    cursor: pointer
}

.sidebar .item.kefu {
    box-shadow: 3px 4px 10px 0px rgba(0, 46, 127, 0.2)
}

.sidebar .item.ewm {
    background: rgba(242, 242, 242, 0.7)
}

.sidebar .item.ewm .iconfont {
    font-size: 30px;
    color: #5D6066;
    transition: 0.6s
}

.sidebar .item.ewm:hover {
    background: #005CFF
}

.sidebar .item.ewm:hover .iconfont {
    color: #FFFFFF
}

.sidebar .item.top {
    background: rgba(242, 242, 242, 0.7)
}

.sidebar .item.top .iconfont {
    font-size: 30px;
    color: #5D6066;
    transition: 0.6s
}

.sidebar .item.top:hover {
    background: #005CFF
}

.sidebar .item.top:hover .iconfont {
    color: #FFFFFF
}

.sidebar .item .ewm_box {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translate(-100%, -50%);
    width: 120px;
    height: 120px;
    padding: 15px;
    background: #005CFF;
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: 0.6s
}

.sidebar .item:hover .ewm_box {
    transform: translate(-120%, -50%);
    opacity: 1;
    pointer-events: auto
}

/* =======================================================
      5. 响应式与移动端适配
      ======================================================= */
@media screen and (min-width: 768px) {
    body {
        min-width: 1300px;
    }

    .menu-toggle,
    .product-showcase,
    .solutions-grid,
    .solution-desc,
    .contact-cta-section,
    .footer-logo-light {
        display: none;
    }

    .header {
        height: 76px;
        min-width: 1300px;
        padding: 0 calc((100% - 1300px) / 2);
        overflow: hidden;
    }

    .header .logo img {
        width: 130px;
    }

    .header .logo {
        width: 130px;
        flex: 0 0 130px;
    }

    .header .header_r {
        min-width: 860px;
        overflow: hidden;
    }

    .header .header_r .nav li .first {
        margin: 0 29px;
    }

    .header .header_r .nav li .first a {
        line-height: 76px;
        font-size: 16px;
    }

    .header .header_r .nav li .second {
        top: 76px;
        left: 0;
        width: 100%;
        min-width: 1300px;
        max-width: none;
        justify-content: center;
        overflow: hidden;
        box-sizing: border-box;
    }

    .header .header_r .nav li .second .l_text {
        flex: 0 0 380px;
        width: 380px;
        min-width: 380px;
        padding: 50px 48px 0 60px;
        box-sizing: border-box;
    }

    .header .header_r .nav li .second .l_text h5 {
        font-size: 18px;
        margin: 0 0 25px;
    }

    .header .header_r .nav li .second .l_text p,
    .header .header_r .nav li .second .l_text .more p,
    .header .header_r .nav li .second .l_text .more .iconfont {
        font-size: 14px;
    }

    .header .header_r .nav li .second .l_text .more {
        margin: 40px 0 0;
    }

    .header .header_r .nav li .second .r_link {
        flex: 0 0 800px;
        width: 800px;
        padding: 55px 0 50px 60px;
        box-sizing: border-box;
    }

    .header .header_r .nav li .second .r_link:after {
        top: 40px;
        height: calc(100% - 90px);
        left: 0;
    }

    .header .header_r .nav li .second .r_link .a_item {
        margin-bottom: 50px;
    }

    .header .header_r .nav li .second .r_link .a_item:not(:nth-child(4n)) {
        margin: 0 105px 50px 0;
    }

    .header .header_r .nav li .second .r_link .a_item p {
        font-size: 16px;
        margin: 0 0 0 20px;
    }

    .header .header_r .nav li .second .r_link .a_item .iconfont,
    .header .header_r .lan .iconfont {
        font-size: 20px;
    }

    .header .header_r .lan {
        margin: 0 0 0 29px;
    }
}

@media screen and (max-width: 767px) {
    html {
        font-size: 62.5%;
    }

    body {
        min-width: 0;
        background: #fff;
    }

    body.menu-lock {
        overflow: hidden;
    }

    .header {
        height: 56px;
        min-width: 0;
        padding: 0 16px;
        overflow: visible;
    }

    .header:after {
        opacity: 0;
    }

    .header .logo {
        z-index: 10001;
    }

    .header .logo img {
        width: 82px;
    }

    .header .logo {
        width: 82px;
        flex: 0 0 82px;
    }

    .header .header_r {
        position: fixed;
        top: 56px;
        left: 0;
        width: 100%;
        height: calc(100vh - 56px);
        display: block;
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 24px 50px rgba(0, 0, 0, 0.12);
        overflow-y: auto;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-16px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .header.menu-open,
    .header.menu-open:after {
        background: #fff;
        opacity: 1;
    }

    .header.menu-open .header_r {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .header.menu-open .logo img:nth-child(1) {
        opacity: 0;
    }

    .header.menu-open .logo img:nth-child(2) {
        opacity: 1;
    }

    .header .header_r .nav {
        display: block;
        height: auto;
        padding: 10px 22px 32px;
    }

    .header .header_r .nav li,
    .header .header_r .nav li .first {
        height: auto;
    }

    .header .header_r .nav li .first {
        margin: 0;
        border-bottom: 1px solid #eef1f5;
    }

    .header .header_r .nav li .first:after {
        display: none;
    }

    .header .header_r .nav li .first a {
        height: auto;
        line-height: 54px;
        font-size: 16px;
        color: #172033;
    }

    .header .header_r .nav li .second {
        display: none;
    }

    .header .header_r .lan {
        display: none;
    }

    .menu-toggle {
        width: 34px;
        height: 34px;
        border: 0;
        background: transparent;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: flex-end;
        gap: 5px;
        z-index: 10001;
    }

    .menu-toggle span {
        display: block;
        width: 20px;
        height: 2px;
        border-radius: 2px;
        background: #fff;
        transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
    }

    .menu-toggle span:nth-child(2) {
        width: 15px;
    }

    .header.on .menu-toggle span,
    .header.header_on .menu-toggle span,
    .header.menu-open .menu-toggle span {
        background: #172033;
    }

    .header.menu-open .menu-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .header.menu-open .menu-toggle span:nth-child(2) {
        opacity: 0;
    }

    .header.menu-open .menu-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .banner-container {
        height: calc(100vw * 1200 / 768);
        background: #eef8ff;
    }

    .slide-item picture,
    .slide-item img {
        width: 100%;
        height: 100%;
        display: block;
    }

    .slide-item img {
        object-fit: contain;
        object-position: center top;
    }

    .banner-controls {
        width: calc(100% - 52px);
        bottom: 18px;
        gap: 8px;
    }

    .pagination-item {
        flex: 1;
        width: auto;
        padding: 18px 0 8px;
    }

    .pagination-title {
        display: none;
    }

    .showcase-wrapper {
        padding: 60px 0 42px;
    }

    .showcase-header {
        margin-bottom: 18px;
    }

    .showcase-title,
    .section-title,
    .partners-title,
    .news-title {
        font-size: 26px;
        letter-spacing: 1px;
    }

    .showcase-title {
        margin-bottom: 8px;
    }

    .showcase-desc,
    .partners-subtitle {
        font-size: 16px;
        line-height: 1.7;
        letter-spacing: 0;
    }

    .showcase-desc {
        display: none;
    }

    .showcase-container {
        display: none;
    }

    .product-showcase {
        display: block;
        width: 100%;
    }

    .product-showcase-tabs {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
        margin: 0 0 18px;
        padding: 0 10px;
    }

    .product-showcase-tab {
        height: 30px;
        border-radius: 6px;
        background: #1f65ff;
        color: #fff;
        font-size: 14px;
        letter-spacing: 0.5px;
        white-space: nowrap;
        transition: background 0.25s ease;
    }

    .product-showcase-tab.active {
        background: #ff8a1f;
    }

    .product-showcase-stage {
        position: relative;
        width: 100%;
        aspect-ratio: 768 / 469;
        overflow: hidden;
        border-radius: 0;
        background: #eef6ff;
    }

    .product-showcase-image {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        opacity: 0;
        transform: translateY(8px);
        transition: opacity 0.28s ease, transform 0.28s ease;
        display: block;
        /* 新增：让 a 标签变成块级元素 */
    }

    /* 新增：让 a 标签里面的图片撑满并保持比例 */
    .product-showcase-image img {
        width: 100%;
        height: 100%;
        object-fit: contain;
        display: block;
    }

    .product-showcase-image.active {
        opacity: 1;
        transform: translateY(0);
        z-index: 2;
    }

    .solution-card {
        position: relative;
        display: block;
        overflow: hidden;
        border-radius: 12px;
        background: #edf5ff;
        box-shadow: 0 12px 28px rgba(10, 74, 158, 0.12);
    }

    .solution-card img {
        display: block;
        width: 100%;
        height: auto;
    }

    .solution-card span {
        position: absolute;
        left: 0;
        right: 0;
        bottom: 10px;
        text-align: center;
        color: #fff;
        font-size: 16px;
        font-weight: 700;
    }

    .case-section {
        padding: 34px 16px 38px;
    }

    .case-section .section-title {
        font-size: 0;
        margin-bottom: 10px;
    }

    .solution-desc {
        color: #666;
        font-size: 16px;
        line-height: 1.7;
        letter-spacing: 0;
        margin-bottom: 10px;
    }

    /* Mobile Override for Titles */
    .case-section .section-title::after {
        content: "解决方案";
        font-size: 22px;
        color: #333;
        font-weight: 700;
        letter-spacing: 1px;
    }

    .tabs-container,
    .carousel-viewport {
        display: none !important;
    }

    .solutions-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .company-intro-section {
        height: auto;
        background: #061225;
        overflow: hidden;
        margin-top: 40px;
        margin-bottom: 0;
    }

    .company-intro-container {
        position: relative;
        top: auto;
        left: auto;
        width: 100%;
        height: auto;
        display: block;
        z-index: 3;
    }

    .company-intro-section .section-bg-figure img {
        object-position: center top;
    }

    .company-intro-section .section-bg-wrapper::after {
        content: "";
        position: absolute;
        inset: 0;
        background: rgba(4, 14, 36, 0.25);
        pointer-events: none;
    }

    .company-intro-content {
        width: 100%;
        flex: 0 0 100%;
        padding: 120px 22px 180px;
        display: block;
        height: auto;
    }

    .intro-left {
        padding-left: 0;
    }

    .intro-left,
    .intro-right {
        display: block;
        height: auto;
    }

    .intro-title {
        display: none;
    }

    .intro-m-title {
        text-align: center;
        font-size: 0;
        line-height: 1.3;
        color: #fff;
        white-space: normal;
        margin-bottom: 28px;
        font-weight: 700;
        letter-spacing: 0;
        display: block;
    }

    .intro-m-title-text {
        display: inline;
        font-size: 32px;
        color: #fff;
        -webkit-text-fill-color: #fff;
        background: none;
        animation: none;
    }

    .intro-m-title-text:nth-child(2)::after {
        content: none;
    }

    .intro-desc {
        display: none;
    }

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px 0;
        padding-left: 0;
        margin-bottom: 0;
    }

    .stat-item {
        position: relative;
        text-align: center;
        padding: 0 6px;
    }

    .stat-item::after {
        content: "";
        position: absolute;
        top: 0;
        right: 0;
        width: 2px;
        height: 100%;
        background: linear-gradient(to bottom, rgba(80, 160, 255, 0.0) 0%, rgb(30 121 229 / 70%) 50%, rgba(80, 160, 255, 0.0) 100%);
    }

    .stat-number {
        color: #fff;
        font-size: 22px;
        line-height: 1;
        margin-bottom: 6px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: clip;
    }

    .stat-plus {
        font-size: 14px;
        margin-left: 1px;
        vertical-align: baseline;
    }

    .stat-label {
        color: rgba(255, 255, 255, 0.82);
        font-size: 11px;
        letter-spacing: 0;
        line-height: 1.3;
    }

    .intro-more-btn {
        display: none;
    }

    .partners-section {
        height: auto;
        display: flex;
        flex-direction: column;
        background: #fff;
        overflow: visible;
        padding-top: 30px;
    }

    .partners-bg {
        order: 2;
        position: relative;
        inset: auto;
        width: 100%;
        height: auto;
    }

    .partners-bg .lazy-picture,
    .partners-bg picture,
    .partners-bg img {
        display: block;
        width: 100%;
        height: auto;
    }

    .partners-bg .lazy-picture img {
        height: auto;
    }

    .partners-bg img {
        object-fit: contain;
        object-position: center top;
    }

    .partners-container {
        order: 1;
        width: 100%;
        height: auto;
        padding: 34px 18px 18px;
        align-items: flex-start;
    }

    .partners-text {
        max-width: 100%;
        height: auto;
        align-items: center;
        text-align: center;
        width: 100%;
    }

    .partners-title {
        color: #222;
        margin-bottom: 8px;
    }

    .partners-subtitle {
        color: #7a8393;
    }

    .news-section {
        padding: 60px 16px 48px;
    }

    .news-header {
        margin-bottom: 22px;
    }

    .news-title {
        margin-bottom: 18px;
    }

    .news-tabs {
        gap: 8px;
        overflow-x: auto;
        justify-content: center;
        padding-bottom: 2px;
    }

    .news-tab-btn {
        flex: 0 0 auto;
        padding: 7px 16px;
        font-size: 13px;
    }

    .news-content-wrapper {
        flex-direction: column;
    }

    .news-content-wrapper.active {
        display: block !important;
    }

    .news-item::before {
        content: '';
        position: absolute;
        left: 0;
        top: -1px;
        width: 62px;
        height: 0;
        border-top: 2px solid #005cff;
        z-index: 5;
        transition: width 0.3s;
    }

    .news-left,
    .news-right {
        width: 100%;
        flex: none;
    }

    .news-left {
        margin-bottom: 16px;
        border-radius: 12px;
        box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    }

    .news-left-img {
        height: 180px;
    }

    .news-left-date {
        left: 16px;
        top: 132px;
        padding: 8px 12px;
        border-width: 3px;
    }

    .news-left-date .d,
    .news-date .d {
        font-size: 22px;
    }

    .news-left-date .ym,
    .news-date .ym {
        font-size: 11px;
    }

    .news-left-text {
        padding: 44px 16px 18px;
    }

    .news-left-text h3 {
        font-size: 15px;
    }

    .news-left-text p {
        white-space: normal;
        display: -webkit-box;
        line-clamp: 2;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }

    .news-item {
        padding: 14px 0;
    }

    .news-date {
        width: 62px;
        padding-right: 12px;
    }

    .news-info {
        padding-left: 12px;
    }

    .news-info h4 {
        font-size: 14px;
        margin-bottom: 6px;
    }

    .news-info p {
        font-size: 12px;
    }

    .contact-section {
        display: none;
    }

    .contact-cta-section {
        position: relative;
        display: block;
        width: 100%;
        line-height: 0;
        overflow: hidden;
    }

    .contact-cta-section img {
        display: block;
        width: 100%;
        height: auto;
    }

    /* 当 contact-cta-section 内被 lazy_helper 包成 <picture> 时，
       图片高度需保持自适应（容器没有固定高度，由图片决定） */
    .contact-cta-section .lazy-picture,
    .contact-cta-section .lazy-picture img {
        height: auto;
    }

    .contact-cta-content {
        position: absolute;
        inset: 0;
        padding: 0 22px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        color: #fff;
        line-height: 1.2;
    }

    .contact-cta-info {
        flex: 1;
    }

    .contact-cta-info p {
        font-size: 20px;
        margin-bottom: 10px;
        font-weight: 700;
        letter-spacing: 1px;
    }

    .contact-cta-info strong {
        display: block;
        font-size: 26px;
        font-weight: 700;
        letter-spacing: 1px;
    }

    .contact-cta-btn {
        flex: 0 0 auto;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 92px;
        height: 30px;
        padding: 0 18px;
        border: 1px solid rgba(255, 255, 255, 0.85);
        border-radius: 4px;
        color: #fff;
        font-size: 13px;
        letter-spacing: 0.5px;
        background: transparent;
        transition: background 0.25s ease, color 0.25s ease;
    }

    .contact-cta-btn:hover {
        background: #fff;
        color: #1f65ff;
    }

    .site-footer {
        height: auto;
        background: #1c2330;
        overflow: visible;
    }

    .footer-bg {
        display: none;
    }

    .footer-overlay {
        position: relative;
        display: block;
        height: auto;
    }

    .footer-container {
        width: 100%;
        flex: none;
        display: flex;
        flex-direction: column;
        padding: 0;
        gap: 0;
    }

    .footer-top {
        display: none;
    }

    .footer-links-grid,
    .footer-social,
    .footer-logo {
        display: none;
    }

    .footer-nav-area {
        display: flex;
        flex-direction: row;
        align-items: flex-end;
        padding: 24px 22px 20px;
        gap: 16px;
    }

    .footer-nav-row {
        padding: 0;
        flex: 0 0 88px;
        order: 2;
        display: block;
    }

    .footer-brand {
        flex: 0 0 88px;
        display: block;
        align-items: stretch;
        gap: 0;
        margin: 0;
    }

    .qrcode-wrapper {
        display: block;
        margin: 0;
    }

    .qrcode-wrapper img {
        width: 88px;
        height: 88px;
        background: #fff;
        padding: 4px;
        border-radius: 4px;
        display: block;
    }

    .friend-links-box {
        display: block;
        flex: 1 1 auto;
        min-width: 0;
        padding: 0;
        gap: 0;
        align-items: stretch;
        order: 1;
    }

    .friend-title {
        color: #c8ccd5;
        font-size: 12px;
        margin: 0 0 12px;
    }

    .friend-links-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        flex-wrap: wrap;
        gap: 9px 10px;
        overflow: visible;
    }

    .friend-links-list a {
        color: #c8ccd5;
        font-size: 12px;
        white-space: nowrap;
        text-overflow: ellipsis;
    }

    .footer-bottom {
        margin-top: 0;
        padding: 0;
        border: 0;
    }

    .footer-copyright {
        display: flex;
        flex-direction: column;
        max-width: none;
        margin: 0;
        padding: 14px 22px 18px;
        text-align: center;
        border-top: 1px solid rgba(255, 255, 255, 0.18);
        color: rgba(255, 255, 255, 0.55);
        font-size: 11px;
        line-height: 1.8;
        gap: 0;
    }
}