/* ========== 全局重置（仅补充 homepage 所需） ========== */
.w1400 {
    width: 1400px;
    margin: 0 auto;
}
@media (max-width: 1440px) { .w1400 { width: 1280px; } }
@media (max-width: 1280px) { .w1400 { width: 1080px; } }
@media (max-width: 1080px) { .w1400 { width: 94%; } }

/* ========== 轮播图自适应优化 ========== */
.siteBanner {
    width: 100%;
    overflow: hidden;
    position: relative;
    margin-top: 0;
    /* 设置默认宽高比（例如 16:5 = 3.2，适合多数企业轮播图） */
    aspect-ratio: 16 / 5;
}
.siteBa_swiper,
.siteBa_swiper .swiper-container,
.siteBa_swiper .swiper-wrapper,
.siteBa_swiper .swiper-slide {
    width: 100%;
    height: 100%;
}
.siteBa_swiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;    /* 保证图片填满容器，可能轻微裁剪，但比例统一 */
    display: block;
}
/* 导航按钮和分页器保持原有相对位置 */
.siteBa_swiper .swiper-container .swiper-button-prev,
.siteBa_swiper .swiper-container .swiper-button-next {
    width: 44px;
    height: 44px;
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    cursor: pointer;
}
.siteBa_swiper .swiper-container .swiper-button-prev { left: 25px; }
.siteBa_swiper .swiper-container .swiper-button-next { right: 25px; }
.siteBa_swiper .swiper-container .swiper-button-prev svg,
.siteBa_swiper .swiper-container .swiper-button-next svg {
    width: 20px;
    height: 20px;
    display: block;
}
.siteBa_swiper .swiper-container .swiper-pagination {
    bottom: 20px;
}
.siteBa_swiper .swiper-container .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    opacity: 1;
    background: #fff;
    margin: 0 8px;
}
.siteBa_swiper .swiper-container .swiper-pagination-bullet-active {
    background: #1a5aaa;
}
/* 平板端调整按钮大小 */
@media (max-width: 1080px) {
    .siteBa_swiper .swiper-container .swiper-button-prev,
    .siteBa_swiper .swiper-container .swiper-button-next {
        width: 36px;
        height: 36px;
    }
    .siteBa_swiper .swiper-container .swiper-button-prev { left: 15px; }
    .siteBa_swiper .swiper-container .swiper-button-next { right: 15px; }
}
/* 手机端：调整宽高比为 16:6（更高一点，避免裁剪过多），同时缩小按钮 */
@media (max-width: 767px) {
    .siteBanner {
        aspect-ratio: 16 / 6;   /* 手机端通常图片更高，比例可以更接近竖长 */
    }
    .siteBa_swiper .swiper-container .swiper-button-prev,
    .siteBa_swiper .swiper-container .swiper-button-next {
        width: 30px;
        height: 30px;
    }
}
/* 超大屏限制最大高度，避免过高（可选） */
@media (min-width: 1920px) {
    .siteBanner {
        max-height: 600px;
    }
}

/* ========== 搜索模块样式 ========== */
.ly_hotkw_search {
    width: 100%;
    background-color: #1a5aaa;
    position: relative;
    z-index: 9;
    padding: 15px 0;
}
.hotkw_search {
    width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.hotkw_left {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}
.hotkw_left img {
    width: 20px;
    height: auto;
}
.hotkw_left span {
    font-size: 14px;
    color: #fff;
}
.hotkw_left a {
    display: inline-block;
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    margin-left: 12px;
}
.hotkw_left a:hover {
    color: #fff;
    text-decoration: underline;
}
.search_right {
    width: 380px;
    height: 40px;
    position: relative;
    border-radius: 30px;
    overflow: hidden;
}
.search_right .sc_ipt {
    width: 100%;
    height: 40px;
    overflow: hidden;
}
.search_right .sc_ipt input {
    display: block;
    width: 100%;
    height: 40px;
    line-height: 40px;
    color: #666;
    font-size: 14px;
    border: none;
    background: #fff;
    padding: 0 15px;
    outline: none;
}
.search_right .sc_btn {
    width: 80px;
    height: 40px;
    position: absolute;
    top: 0;
    right: 0;
    cursor: pointer;
}
.search_right .sc_btn input {
    display: block;
    width: 100%;
    height: 40px;
    background: #f5f5f5 url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%231a5aaa"><path d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"/></svg>') no-repeat center center;
    background-size: 18px;
    border: none;
    cursor: pointer;
}
@media (max-width: 1440px) { .hotkw_search { width: 94%; } }
@media (max-width: 1080px) {
    .ly_hotkw_search { padding: 10px 0; }
    .hotkw_search { flex-direction: column; gap: 12px; align-items: stretch; }
    .hotkw_left { justify-content: center; }
    .hotkw_left a { margin: 0 8px; }
    .search_right { width: 100%; max-width: 360px; margin: 0 auto; border-radius: 20px; }
}
@media (max-width: 767px) {
    .search_right { height: 36px; border-radius: 18px; }
    .search_right .sc_ipt { height: 36px; }
    .search_right .sc_ipt input { height: 36px; line-height: 36px; font-size: 13px; padding: 0 12px; }
    .search_right .sc_btn { width: 60px; height: 36px; }
    .search_right .sc_btn input { height: 36px; background-size: 16px; }
}

/* ========== 产品模块样式 ========== */
.product-wrap {
    width: 100%;
    background: linear-gradient(to bottom, #fff 0%, #f8f9fc 100%);
    padding: 80px 0;
}
.product-wrap > div:first-child,
.product-wrap > .product-main {
    width: 1400px;
    margin: 0 auto;
}
.product-main {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}
.left-nav {
    width: 280px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    background: #162940;
    color: #fff;
    display: flex;
    flex-direction: column;
    max-height: 800px;
}
.nav-title {
    background: #1a5aaa;
    padding: 20px 0;
    text-align: center;
    font-weight: bold;
}
.nav-title .en { font-size: 36px; margin-bottom: 4px; }
.nav-title .cn { font-size: 20px; }
.nav-list {
    flex: 1;
    overflow-y: auto;
    scrollbar-width: thin;
}
.nav-list::-webkit-scrollbar {
    width: 0;
    background: transparent;
}
.nav-list:hover::-webkit-scrollbar {
    width: 4px;
    background-color: #253858;
}
.nav-list:hover::-webkit-scrollbar-thumb {
    background-color: #1a5aaa;
    border-radius: 4px;
}
.nav-list:hover::-webkit-scrollbar-thumb:hover {
    background-color: #40a9ff;
}
.nav-item {
    border-bottom: 1px solid #253858;
}
.nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    font-size: 18px;
}
.nav-name {
    flex: 1;
}
.nav-arrow {
    font-size: 12px;
    margin-left: 8px;
    color: #9ca3af;
    transition: transform 0.2s, color 0.2s;
    display: inline-block;
}
.nav-item.open .nav-arrow {
    color: #1a5aaa;
    transform: rotate(180deg);
}
.nav-child {
    background: #1e3a5f;
    display: none;
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-child li {
    padding: 12px 35px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.25s ease;
    list-style: none;
}
.nav-child li:hover {
    background: #254677;
    padding-left: 40px;
}
.nav-child li.active {
    color: #40a9ff;
    background: #254677;
}
.nav-name.active {
    color: #40a9ff;
}
.nav-header.active {
    background: #1e3a5f;
}
.phone-contact {
    background: linear-gradient(180deg, #15283f 0%, #0f2035 100%);
    border-top: 1px solid #253858;
    padding: 20px;
    text-align: center;
}
.phone-contact .title {
    font-size: 15px;
    color: #fff;
    margin-bottom: 8px;
}
.phone-contact .number {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    letter-spacing: 2px;
}
.product-list {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}
.product-card {
    text-align: center;
    padding: 12px;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    transition: transform 0.2s;
}
.product-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}
.product-img {
    width: 100%;
    aspect-ratio: 1/1;
    margin-bottom: 8px;
    border-radius: 6px;
    overflow: hidden;
    background: #eee;
}
.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-desc {
    font-size: 12px;
    color: #9ca3af;
    margin-bottom: 4px;
}
.product-name {
    font-size: 16px;
    color: #1f2937;
    font-weight: 500;
}
@media (max-width: 1400px) {
    .product-wrap > div:first-child,
    .product-wrap > .product-main { width: 1280px; }
}
@media (max-width: 1280px) {
    .product-wrap > div:first-child,
    .product-wrap > .product-main { width: 1080px; }
}
@media (max-width: 1080px) {
    .product-wrap > div:first-child,
    .product-wrap > .product-main { width: 94%; }
    .product-main { flex-direction: column; }
    .left-nav { width: 100%; max-height: 70vh; }
}
@media (max-width: 768px) {
    .product-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding: 0 12px;   /* 左右留白，整体居中 */
    }
}

/* 单列时：仅左右留白，整体居中，不改图片大小和字体 */
@media (max-width: 480px) {
    .product-list {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 12px;   /* 左右留白，让卡片整体居中 */
    }
}
/* ========== 应用领域模块 ========== */
.app-sector {
    background: linear-gradient(to bottom, #fff 0%, #f8f9fc 100%);
    padding: 60px 0;
}
.app-sector .section-title {
    text-align: center;
    margin-bottom: 40px;
}
.app-sector .section-title p {
    font-size: 32px;
    color: #222;
    font-weight: 500;
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
    margin: 0;
}
.app-sector .section-title p:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 60px;
    height: 3px;
    background: #0057b8;
    transform: translateX(-50%);
}
.sector-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}
.sector-card {
    perspective: 1000px;
    height: 300px;
}
.sector-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}
.sector-card:hover .sector-inner {
    transform: rotateY(180deg);
}
.sector-front, .sector-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 25px;
    box-sizing: border-box;
}
.sector-front {
    background-color: #fff;
    color: #222;
}
.sector-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,87,184,0.1);
    border-radius: 50%;
}
.sector-icon svg {
    width: 45px;
    height: 45px;
    fill: #0057b8;
}
.sector-front h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}
.sector-front p {
    font-size: 14px;
    color: #666;
}
.sector-back {
    background-color: #0057b8;
    color: #fff;
    transform: rotateY(180deg);
    text-align: left;
    justify-content: center;
    overflow-y: auto;
}
.sector-back h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    border-left: 3px solid rgba(255,255,255,0.8);
    padding-left: 12px;
}
.sector-list li {
    font-size: 13px;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
}
.sector-list li:before {
    content: "•";
    font-size: 16px;
    margin-right: 8px;
    color: rgba(255,255,255,0.8);
}
@media (max-width: 992px) {
    .sector-grid { grid-template-columns: repeat(2, 1fr); }
    .sector-card { height: 280px; }
}
/* ==================== 手机端应用领域卡片（最终修复版） ==================== */
@media (max-width: 768px) {
    .app-sector {
      padding: 40px 0;
    }
    .sector-grid {
      grid-template-columns: 1fr;
      padding: 0 12px;
      gap: 16px;
    }
  
    /* 手机核心：取消 3D，改成普通堆叠卡片，彻底不卡、不错位 */
    .sector-card {
      height: auto !important;
      perspective: none !important;
      cursor: pointer;
      -webkit-tap-highlight-color: transparent;
    }
    .sector-inner {
      position: relative !important;
      transform: none !important;
      transform-style: flat !important;
      height: auto !important;
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
      border-radius: 16px;
      overflow: hidden;
    }
  
    /* 正面永远显示 */
    .sector-front {
      position: relative !important;
      transform: none !important;
      backface-visibility: visible !important;
      height: 220px !important;
    }
  
    /* 背面默认隐藏，点击展开 */
    .sector-back {
      position: relative !important;
      transform: none !important;
      backface-visibility: visible !important;
      display: none;
      border-radius: 0 0 16px 16px;
      padding: 24px !important;
    }
  
    /* 点击后展开背面（无3D，纯显示/隐藏，丝滑） */
    .sector-card.active .sector-back {
      display: block !important;
      animation: fadeIn 0.3s ease;
    }
  
    /* 手机端彻底禁用 hover，避免冲突 */
    .sector-card:hover .sector-inner {
      transform: none !important;
    }
  
    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }
  }

/* ========== 应用案例模块 ========== */
.webCase {
    background: linear-gradient(to bottom, #fff 0%, #f8f9fc 100%);
    padding: 60px 0;
}
.webCase .webTitle {
    text-align: center;
    margin-bottom: 40px;
}
.webCase .webTitle p {
    font-size: 32px;
    color: #222;
    font-weight: 500;
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
    margin: 0;
}
.webCase .webTitle p:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 60px;
    height: 3px;
    background: #0057b8;
    transform: translateX(-50%);
}
.case-carousel {
    position: relative;
    padding: 0 70px;
}
.case-wrapper {
    overflow: hidden;
}
.case-track {
    display: flex;
    transition: transform 0.5s ease;
    gap: 25px;
}
.case-card {
    flex: 0 0 calc(33.333% - 17px);
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    transition: all 0.3s;
}
.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 45px rgba(0,0,0,0.12);
}
.case-img {
    display: block;
    overflow: hidden;
    height: 260px;
}
.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.case-card:hover .case-img img {
    transform: scale(1.05);
}
.case-text {
    padding: 20px 25px 30px;
    background: #fff;
}
.case-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}
.case-title a {
    color: #222;
}
.case-title a:hover {
    color: #0057b8;
}
.case-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #666;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.case-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #0057b8;
    font-weight: 500;
}
.case-btn i {
    display: flex;
    transition: transform 0.2s;
}
.case-btn:hover i {
    transform: translateX(5px);
}
.case-btn i svg {
    width: 18px;
    height: 18px;
}
.carousel-prev, .carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    background: rgba(0,0,0,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.3s;
    z-index: 10;
}
.carousel-prev { left: 10px; }
.carousel-next { right: 10px; }
.carousel-prev:hover, .carousel-next:hover {
    background: #0057b8;
}
.carousel-prev svg, .carousel-next svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}
.carousel-prev svg {
    transform: rotate(180deg);
}
.carousel-pagination {
    text-align: center;
    margin-top: 35px;
}
.carousel-pagination span {
    display: inline-block;
    width: 12px;
    height: 12px;
    background: #ccc;
    border-radius: 50%;
    margin: 0 6px;
    cursor: pointer;
}
.carousel-pagination span.active {
    background: #0057b8;
    width: 24px;
    border-radius: 6px;
}
@media (max-width: 1200px) {
    .case-card { flex: 0 0 calc(50% - 13px); }
    .carousel-prev, .carousel-next { width: 36px; height: 36px; }
}
@media (max-width: 768px) {
    .webCase { padding: 40px 0; }
    .case-carousel { padding: 0 30px; }
    .case-card { flex: 0 0 100%; }
    .case-img { height: 200px; }
}

/* ========== 关于我们模块 ========== */
.lyAboutus {
    background: linear-gradient(to bottom, #fff 0%, #f8f9fc 100%);
}
.lyAbout_main {
    display: flex;
    gap: 60px;
    padding: 80px 0;
    align-items: center;
}
.lyAbout_text { flex: 1; }
.lyAbout_img {
    flex: 1;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    cursor: pointer;
}
.video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
}
.video-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.video-wrapper:hover img {
    transform: scale(1.05);
}
.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}
.play-btn svg {
    width: 60px;
    height: 60px;
    fill: #fff;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}
.video-wrapper:hover .play-btn {
    transform: translate(-50%, -50%) scale(1.1);
}
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}
.video-modal-content {
    position: relative;
    width: 80%;
    max-width: 900px;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
}
.video-close {
    position: absolute;
    top: 10px;
    right: 10px;
    color: #fff;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10;
    background: rgba(0,0,0,0.5);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}
.video-close:hover {
    background: #1a5aaa;
    transform: scale(1.1);
}
.video-modal-content video {
    width: 100%;
    height: auto;
    display: block;
}
.lyTitle1 span {
    display: block;
    color: #1a5aaa;
    font-size: 60px;
    font-weight: bold;
    letter-spacing: 2px;
}
.lyTitle1 h2 {
    font-size: 36px;
    font-weight: 500;
    position: relative;
    display: inline-block;
}
.lyTitle1 h2::after {
    content: '';
    display: block;
    width: 160px;
    height: 2px;
    background-color: #ddd;
    position: absolute;
    left: 110%;
    top: 50%;
    transform: translateY(-50%);
}
.lyAbout_con {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin: 30px 0 40px;
    text-align: justify;
}
.lyAbout_lk dl {
    display: flex;
    gap: 30px;
}
.lyAbout_lk dd a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #f5f5f5;
    padding: 10px 24px;
    border-radius: 40px;
    font-weight: 500;
}
.lyAbout_lk dd a:hover {
    background: #1a5aaa;
    color: #fff;
}
@media (max-width: 1080px) {
    .lyAbout_main { flex-direction: column; padding: 60px 0; }
    .lyTitle1 span { font-size: 48px; }
    .lyTitle1 h2 { font-size: 28px; }
    .lyTitle1 h2::after { width: 100px; }
}
@media (max-width: 768px) {
    .lyTitle1 span { font-size: 36px; text-align: center; }
    .lyTitle1 h2 { display: block; text-align: center; }
    .lyTitle1 h2::after { display: none; }
}

/* ========== 新闻中心模块 ========== */
.news-section {
    background: linear-gradient(to bottom, #fff 0%, #f8f9fc 100%);
    padding: 70px 0 80px 0;
}
.news-section .section-title {
    text-align: center;
    margin-bottom: 40px;
}
.news-section .section-title p {
    font-size: 32px;
    color: #222;
    font-weight: 500;
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
    margin: 0;
}
.news-section .section-title p:after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 60px;
    height: 3px;
    background: #0057b8;
    transform: translateX(-50%);
}
.news-tabs {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 45px;
}
.tab-btn {
    font-size: 20px;
    font-weight: 500;
    padding: 8px 30px;
    background: transparent;
    border: none;
    color: #666;
    cursor: pointer;
    border-radius: 40px;
}
.tab-btn.active {
    color: #fff;
    background: #0057b8;
    box-shadow: 0 6px 14px rgba(0,87,184,0.2);
}
.news-list {
    display: none;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.news-list.active { display: grid; }
.news-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
    transition: all 0.3s;
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 25px 45px rgba(0,0,0,0.12);
}
.news-img {
    display: block;
    overflow: hidden;
    height: 200px;
}
.news-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.news-card:hover .news-img img { transform: scale(1.05); }
.news-content { padding: 20px 22px 28px; }
.news-date {
    font-size: 13px;
    color: #999;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 5px;
}
.news-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}
.news-title a { color: #222; }
.news-title a:hover { color: #0057b8; }
.news-summary {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 15px;
    font-size: 13px;
    color: #0057b8;
    font-weight: 500;
}
@media (max-width: 1200px) {
    .news-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .news-section { padding: 50px 0 60px 0; }
    .news-section .section-title { margin-bottom: 30px; }
    .tab-btn { font-size: 16px; padding: 6px 20px; }
    .news-tabs { margin-bottom: 30px; }
    .news-list { grid-template-columns: 1fr; }
}

/* ========== 常见问题模块 ========== */
.webfaq {
    background: linear-gradient(to bottom, #fff 0%, #f8f9fc 100%);
    padding: 60px 0;
    overflow: hidden;
}
.webfaq .w1400 {
    width: 1400px;
    margin: 0 auto;
}
.webfaq .webtitle {
    text-align: center;
    margin-bottom: 40px;
}
.webfaq .webtitle h2 {
    font-size: 32px;
    color: #222;
    font-weight: 500;
    margin: 0 0 8px 0;
}
.webfaq .webtitle p {
    font-size: 16px;
    color: #999;
    letter-spacing: 2px;
    margin: 0 0 12px 0;
}
.webfaq .webtitle em {
    display: inline-block;
    width: 40px;
    height: 3px;
    background: #0057b8;
    border-radius: 2px;
}
.webfaq_list {
    width: 100%;
}
.webfaq_item {
    background: #fff;
    border-radius: 16px;
    margin-bottom: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}
.webfaq_item:hover {
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}
.webfaq_q {
    display: flex;
    align-items: center;
    padding: 18px 25px;
    cursor: pointer;
    gap: 15px;
}
.webfaq_icon {
    width: 32px;
    height: 32px;
    background: #1a5aaa;
    color: #fff;
    font-weight: bold;
    font-size: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.webfaq_title {
    flex: 1;
    font-size: 18px;
    font-weight: 550;
    color: #222;
}
.webfaq_arrow {
    font-size: 24px;
    font-weight: 300;
    color: #aaa;
    width: 24px;
    height: 24px;
    text-align: center;
    line-height: 24px;
    display: inline-block;
    transition: all 0.2s;
    flex-shrink: 0;
}
.webfaq_item.active .webfaq_arrow {
    color: #0057b8;
}
.webfaq_a {
    display: none;
    padding: 0 25px 25px 25px;
}
.webfaq_item.active .webfaq_a {
    display: block;
}
.webfaq_aicon {
    display: inline-block;
    width: 28px;
    height: 28px;
    background: #f0f0f0;
    color: #666;
    font-weight: bold;
    font-size: 14px;
    text-align: center;
    line-height: 28px;
    border-radius: 50%;
    margin-right: 12px;
    vertical-align: middle;
}
.webfaq_text {
    display: inline-block;
    width: calc(100% - 45px);
    font-size: 15px;
    line-height: 1.7;
    color: #666;
    vertical-align: middle;
}
@media (max-width: 1400px) {
    .webfaq .w1400 { width: 1280px; }
}
@media (max-width: 1280px) {
    .webfaq .w1400 { width: 1080px; }
}
@media (max-width: 1080px) {
    .webfaq .w1400 { width: 94%; }
}
@media (max-width: 768px) {
    .webfaq { padding: 40px 0; }
    .webfaq .webtitle h2 { font-size: 24px; }
    .webfaq .webtitle p { font-size: 14px; }
    .webfaq_q { padding: 15px 18px; }
    .webfaq_icon { width: 28px; height: 28px; font-size: 16px; }
    .webfaq_title { font-size: 16px; }
    .webfaq_arrow { font-size: 22px; width: 22px; height: 22px; line-height: 22px; }
    .webfaq_text { font-size: 14px; width: calc(100% - 40px); }
}

/* ========== 友情链接模块 ========== */
.weblinks {
    background: linear-gradient(135deg, #ffffff 0%, #f5f8fc 100%);
    padding: 30px 0;
    border-top: 1px solid #e9ecef;
}
.weblinks .w1400 {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 20px;
}
.weblinks_title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 500;
}
.weblinks_title img {
    width: 20px;
    height: auto;
}
.weblinks_list {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}
.weblinks_list a {
    font-size: 14px;
    color: #666;
}
.weblinks_list a:hover { color: #0057b8; }
@media (max-width: 768px) {
    .weblinks .w1400 { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ========== 首页模块滚动动画 ========== */
.product-wrap, .app-sector, .webCase, .news-section, .webfaq, .weblinks {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}
.product-wrap.animated { opacity: 1; animation: zoomIn 0.8s forwards; }
.app-sector.animated { opacity: 1; animation: slideInLeft 0.8s forwards; }
.webCase.animated { opacity: 1; animation: slideInRight 0.8s forwards; }
.news-section.animated { opacity: 1; animation: fadeInUp 0.8s forwards; }
.webfaq.animated { opacity: 1; animation: slideInLeft 0.8s forwards; }
.weblinks.animated { opacity: 1; animation: slideInRight 0.8s forwards; }

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}
@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}
.hot_text {
    font-weight: bold;
    color: #e60012;
    font-size: 14px;
    margin-right: 5px;
}
@media (max-width: 768px) {
    /* 隐藏产品模块顶部的重复标题 */
    .product-wrap > div:first-child {
        display: none;
    }
    /* 减小产品模块的上边距 */
    .product-wrap {
        padding-top: 20px;
    }
}
/* ========== 只影响手机端：图片居中裁剪、不变形、不偏 ========== */
@media (max-width: 768px) {
    /* 1. 列表整体居中，左右统一边距 */
    .product-main {
      padding: 0 12px !important;
    }
    .product-list {
      width: 100% !important;
      margin: 0 auto !important;
      padding: 0 !important;
      box-sizing: border-box !important;
    }
  
    /* 2. 卡片居中 */
    .product-card {
      width: 100% !important;
      text-align: center !important;
      box-sizing: border-box !important;
    }
  
    /* 3. 图片容器：水平+垂直居中 */
    .product-img {
      display: flex !important;
      justify-content: center !important;
      align-items: center !important;
      overflow: hidden !important;
      background: #f5f5f5 !important;
    }
  
    /* 4. 图片：cover填满+居中裁剪+不变形 */
    .product-img img {
      width: 100% !important;
      height: 100% !important;
      object-fit: cover !important;         /* 不变形、填满、裁边缘 */
      object-position: center center !important; /* 从正中间裁，不偏左 */
      display: block !important;
      margin: 0 auto !important;
    }
  }
  /* 查看更多按钮样式 */
.more-link-wrapper {
    grid-column: 1 / -1;      /* 占满整行 */
    text-align: center;
    margin-top: 30px;
}
.more-link {
    display: inline-block;
    padding: 10px 30px;
    background: transparent;
    border: 1px solid #1a5aaa;
    border-radius: 40px;
    color: #1a5aaa;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}
.more-link:hover {
    background: #1a5aaa;
    color: #fff;
    text-decoration: none;
}