/* ============================================
   首页样式 - 深色+蓝
   ============================================ */

/* 通用 */
.index-section { padding: 100px 0; }
.index-section.dark { background: var(--bg-dark); color: #fff; }
.index-section.gray { background: var(--bg-soft); }

.index-tit { text-align: center; margin-bottom: 70px; }
.index-tit .tit-e {
    font-size: 14px; font-weight: 500;
    color: var(--primary);
    position: relative; line-height: 1;
    letter-spacing: 4px;
    text-transform: uppercase;
    display: inline-block;
    padding: 0 16px;
    margin-bottom: 16px;
}
.index-tit .tit-e::before,
.index-tit .tit-e::after {
    content: "";
    position: absolute; top: 50%;
    width: 24px; height: 1px;
    background: var(--primary);
}
.index-tit .tit-e::before { left: -28px; }
.index-tit .tit-e::after { right: -28px; }

.index-tit h3 {
    font-size: 36px; font-weight: 700;
    color: var(--text-dark); letter-spacing: 1px;
}
.index-section.dark .index-tit h3 { color: #fff; }
.index-section.dark .index-tit p { color: #94a3b8; }
.index-tit p {
    font-size: 15px; color: var(--text-gray);
    margin-top: 16px; line-height: 1.7;
}

@media (max-width: 1024px) {
    .index-tit { margin-bottom: 50px; }
    .index-tit .tit-e { font-size: 13px; }
    .index-tit h3 { font-size: 28px; }
}
@media (max-width: 524px) {
    .index-tit { margin-bottom: 30px; }
    .index-tit .tit-e { font-size: 12px; padding: 0 10px; }
    .index-tit .tit-e::before, .index-tit .tit-e::after { width: 14px; }
    .index-tit .tit-e::before { left: -18px; }
    .index-tit .tit-e::after { right: -18px; }
    .index-tit h3 { font-size: 22px; }
}

/* index-banner */
.index-banner { position: relative; }
.index-banner .swiper-container { height: 100vh; }
.index-banner .swiper-button-next::after,
.index-banner .swiper-button-prev::after { color: #fff; }
:root { --swiper-theme-color: #fff !important; }

.index-banner .swiper-container .swiper-slide,
.index-banner .swiper-container .swiper-img,
.index-banner .swiper-container .swiper-slide .container,
.index-banner .swiper-container .swiper-wrapper { height: 100%; }

.index-banner .swiper-container .swiper-slide .container a {
    display: block; position: relative; height: 100%;
}
.index-banner .swiper-container .swiper-slide .banner-txt .text4,
.index-banner .swiper-container .swiper-slide .banner-txt .text3,
.index-banner .swiper-container .swiper-slide .banner-txt .text1 { overflow: hidden; }

.index-banner .swiper-container .swiper-slide .banner-txt .text3 > *,
.index-banner .swiper-container .swiper-slide .banner-txt .text1 > *,
.index-banner .swiper-container .swiper-slide .banner-txt .text5 > *,
.index-banner .swiper-container .swiper-slide .banner-txt .text6 > * {
    -webkit-transform: translateY(100px); -moz-transform: translateY(100px);
    -ms-transform: translateY(100px); -o-transform: translateY(100px);
    transform: translateY(100px);
    -webkit-transition: all 1s; -o-transition: all 1s;
    -moz-transition: all 1s; transition: all 1s;
    display: inline-block; opacity: 0;
}

.index-banner .swiper-container .swiper-slide .banner-txt .text4 > .banner-more {
    -webkit-transform: translateY(50px); -moz-transform: translateY(50px);
    -ms-transform: translateY(50px); -o-transform: translateY(50px);
    transform: translateY(50px);
    -webkit-transition: all 1s; -o-transition: all 1s;
    -moz-transition: all 1s; transition: all 1s;
    opacity: 0;
}

.index-banner .swiper-container .swiper-slide .banner-txt .text2 > strong {
    -webkit-transform: translateY(100px); -moz-transform: translateY(100px);
    -ms-transform: translateY(100px); -o-transform: translateY(100px);
    transform: translateY(100px);
    -webkit-transition: all .5s; -o-transition: all .5s;
    -moz-transition: all .5s; transition: all .5s;
    display: inline-block; opacity: 0;
}

.index-banner .swiper-container .swiper-slide-active .banner-txt .text4 > .banner-more,
.index-banner .swiper-container .swiper-slide-active .banner-txt .text2 > strong,
.index-banner .swiper-container .swiper-slide-active .banner-txt .text3 > *,
.index-banner .swiper-container .swiper-slide-active .banner-txt .text1 > *,
.index-banner .swiper-container .swiper-slide-active .banner-txt .text5 > *,
.index-banner .swiper-container .swiper-slide-active .banner-txt .text6 > * {
    -webkit-transform: none !important; -moz-transform: none !important;
    -ms-transform: none !important; -o-transform: none !important;
    transform: none !important; opacity: 1;
}

.index-banner .swiper-container .swiper-slide .container a .banner-txt {
    position: absolute; top: 51%;
    -webkit-transform: translateY(-50%); -moz-transform: translateY(-50%);
    -ms-transform: translateY(-50%); -o-transform: translateY(-50%);
    transform: translateY(-50%);
    color: #fff; text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
}
.index-banner .swiper-container .swiper-slide .container a .banner-txt.banner-txt1,
.index-banner .swiper-container .swiper-slide .container a .banner-txt.banner-txt3 {
    text-align: center; margin: 0 auto;
    left: 0; top: 45%; width: 100%;
}

.index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-txt3 {
    font-size: 20px; margin-top: 20px;
}
.index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-txt3 span:last-child { margin-right: 0; }
.index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-txt3 span,
.index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-txt3 span img { margin-right: 15px; }

.index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-more {
    width: auto; height: 56px; line-height: 56px;
    background-color: var(--primary); border-radius: 4px;
    padding: 0 40px; color: #fff; text-shadow: none;
    margin-top: 30px; margin-bottom: 20px; font-size: 18px;
    display: inline-block; border: 0;
    transition: all .3s;
}
.index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-more:hover {
    background: var(--primary-deep);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.4);
}

.index-banner .swiper-container .swiper-slide .container a .banner-txt p { font-size: 22px; }
.index-banner .swiper-container .swiper-slide .container a .banner-txt strong {
    font-size: 56px; font-weight: 700;
    letter-spacing: 2px; margin-bottom: 10px;
}
.index-banner .swiper-container .swiper-slide .container a .banner-txt .text3 p {
    font-size: 28px; letter-spacing: 2px;
    background: rgba(0, 0, 0, 0.3);
    display: inline-block;
    padding: 8px 24px;
    border-left: 3px solid var(--primary-light);
}
.index-banner .swiper-container .swiper-slide .container a .banner-txt .text5 p { font-size: 18px; width: 75%; }
.index-banner .swiper-container .swiper-slide .container .banner-txt .text6 p {
    border-top: 1px solid #fff; border-bottom: 1px solid #fff;
    line-height: 45px; font-size: 28px; text-align: center;
    width: 550px; padding: 7px 10px; margin: 10px 0;
}

/* 轮播图底部 - 加一层暗渐变 */
.index-banner::after {
    content: "";
    position: absolute; left: 0; bottom: 0; width: 100%; height: 200px;
    background: linear-gradient(180deg, transparent 0%, rgba(6, 24, 47, 0.4) 100%);
    pointer-events: none; z-index: 1;
}

/* 新 banner 内容 - 左下角布局 */
.index-banner .swiper-slide .banner-txt {
    position: absolute;
    left: 8%;
    top: 50%;
    transform: translateY(-50%);
    width: 560px;
    max-width: 50%;
    text-align: left;
    z-index: 5;
    opacity: 0;
    transition: opacity .8s ease;
}
.index-banner .swiper-slide-active .banner-txt { opacity: 1; }
.index-banner .banner-tag {
    display: inline-flex; align-items: center;
    background: rgba(31, 95, 139, 0.92);
    color: #fff;
    padding: 8px 18px;
    border-radius: 30px;
    font-size: 14px;
    letter-spacing: 2px;
    font-weight: 500;
    margin-bottom: 28px;
    backdrop-filter: blur(4px);
    box-shadow: 0 4px 12px rgba(31, 95, 139, 0.35);
}
.index-banner .banner-tag i { margin-right: 8px; font-size: 14px; }
.index-banner .banner-title h2 {
    color: #fff;
    font-size: 52px;
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: 2px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    margin-bottom: 22px;
}
.index-banner .banner-sub p {
    color: rgba(255, 255, 255, 0.92);
    font-size: 16px;
    line-height: 1.7;
    letter-spacing: 1px;
    margin-bottom: 38px;
    text-shadow: 0 1px 8px #000000;
}
.index-banner .banner-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.index-banner .banner-actions a {
    display: inline-flex !important; align-items: center; justify-content: center;
    padding: 0 26px !important;
    height: 46px !important;
    font-size: 14px;
    letter-spacing: 2px;
    border-radius: 4px;
    transition: all .25s;
    line-height: 1;
    text-decoration: none;
}
.index-banner .banner-actions a.btn-primary {
    background: linear-gradient(135deg, #1F5F8B 0%, #2E8BC0 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(31, 95, 139, 0.45);
}
.index-banner .banner-actions a.btn-primary:hover {
    background: linear-gradient(135deg, #154868 0%, #1F5F8B 100%);
    box-shadow: 0 6px 22px rgba(31, 95, 139, 0.6);
    transform: translateY(-2px);
}
.index-banner .banner-actions a.btn-primary i {
    margin-left: 8px;
    transition: transform .25s;
}
.index-banner .banner-actions a.btn-primary:hover i { transform: translateX(4px); }
.index-banner .banner-actions a.btn-ghost {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.6);
}
.index-banner .banner-actions a.btn-ghost:hover {
    background: #fff;
    color: var(--primary);
    border-color: #fff;
    transform: translateY(-2px);
}

/* 响应式 */
@media (max-width: 991px) {
    .index-banner .swiper-slide .banner-txt {
        width: 80%;
        left: 10%;
        top: auto;
        bottom: 14%;
        transform: none;
        text-align: center;
    }
    .index-banner .banner-tag { font-size: 12px; margin-bottom: 16px; }
    .index-banner .banner-title h2 { font-size: 30px; margin-bottom: 14px; }
    .index-banner .banner-sub p { font-size: 14px; margin-bottom: 24px; }
    .index-banner .banner-actions { justify-content: center; }
    .index-banner .banner-actions a { height: 40px !important; padding: 0 18px !important; font-size: 13px; }
}

@media (max-width: 575px) {
    .index-banner .banner-title h2 { font-size: 24px; }
    .index-banner .banner-sub p { font-size: 13px; line-height: 1.5; }
}

@media (max-width: 1200px) {
    .index-banner { padding-top: 60px; }
    .index-banner .swiper-container { height: 100vh; }
}
@media (max-width: 1024px) {
    .index-banner .swiper-container { height: 100vh; }
    .index-banner .swiper-button-next, .index-banner .swiper-button-prev { display: none; }
}
@media (max-width: 992px) {
    .index-banner .swiper-container .swiper-slide .container a .banner-txt p { font-size: 20px; }
}
@media (max-width: 767px) {
    .index-banner .swiper-container { height: 100vh; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-more { width: auto; padding: 5px 25px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text1,
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text3 p { font-size: 16px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text2 strong { font-size: 24px; }
}
@media (max-width: 580px) {
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-txt3 { display: none; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text2 strong { font-size: 17px; margin-bottom: 0; }
}
@media (max-width: 540px) {
    .index-banner .swiper-container { height: 100vh; }
}
@media (max-width: 320px) {
    .index-banner .swiper-container { height: 100vh; }
}

/* index-pro 产品系列 */
.index-pro {
    background: var(--bg-soft);
    position: relative;
}
.index-pro .swiper-main { padding: 0 46px; position: relative; }
.index-pro .swiper-main .swiper-slide a {
    background: #fff;
    border-radius: 6px;
    overflow: hidden;
    display: block;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all .3s;
}
.index-pro .swiper-main .swiper-slide a:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.15);
}
.index-pro .swiper-main .swiper-slide a .pro-txt {
    display: block; text-align: center;
    background-color: #fff; padding: 30px 20px;
}
.index-pro .swiper-main .swiper-slide a .pro-txt .pro-tit h3 { font-size: 18px; font-weight: 600; }
.index-pro .swiper-main .swiper-slide a .pro-txt .index-more a {
    border: 1px solid var(--line-light);
    color: var(--text-gray);
    margin-top: 16px;
}
.index-pro .swiper-main .swiper-slide a:hover .pro-txt .index-more a {
    background-color: var(--primary); color: #fff; border-color: var(--primary);
}
.index-pro .swiper-main .swiper-slide a:hover .img-box img {
    -webkit-transform: scale(1.1); -moz-transform: scale(1.1);
    -ms-transform: scale(1.1); -o-transform: scale(1.1);
    transform: scale(1.1);
}
.index-pro .swiper-main .swiper-slide a .pro-txt .pro-c { color: var(--text-gray); line-height: 1.8; margin: 8px 0; }

.index-pro .swiper-main .swiper-button-next::after,
.swiper-container-rtl .swiper-button-prev::after,
.index-pro .swiper-main .swiper-button-prev::after,
.swiper-container-rtl .swiper-button-next::after {
    color: #94a3b8; font-weight: 700; font-size: 32px;
}
.index-pro .swiper-button-next:hover::after,
.index-pro .swiper-button-prev:hover::after { color: var(--primary) !important; }

@media (max-width: 639px) {
    .index-pro .swiper-main { padding: 0; }
    .index-pro .swiper-button-next, .index-pro .swiper-button-prev { top: 32%; }
    .index-pro .swiper-main .swiper-slide a .pro-txt { padding: 20px; }
    .index-pro .swiper-main .swiper-slide a .pro-txt .pro-c { line-height: 1.5; }
}

/* index-about2 关于我们 - 浅底 左文右图 2x2 卡片 */
.index-about2 {
    background: var(--bg-soft);
    padding: 100px 0;
}
.index-about2 .about2-left .subtit {
    font-size: 14px;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 18px;
    font-weight: 500;
}
.index-about2 .about2-left h2 {
    font-size: 38px;
    line-height: 1.45;
    color: var(--text-dark);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 18px;
}
.index-about2 .about2-left .line {
    width: 40px;
    height: 3px;
    background: var(--primary);
    margin-bottom: 22px;
}
.index-about2 .about2-left .desc {
    font-size: 14px;
    line-height: 1.95;
    color: var(--text-gray);
}
.index-about2 .about2-right .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.index-about2 .about2-right .about-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 22px 24px;
    min-height: 170px;
    border-radius: 6px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
    color: #fff;
    transition: transform .3s, box-shadow .3s;
}
.index-about2 .about2-right .about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    color: #fff;
}
.index-about2 .about2-right .about-card-mask {
    position: absolute; left: 0; top: 0; width: 100%; height: 100%;
    background: linear-gradient(180deg, rgba(6, 24, 47, 0.25) 0%, rgba(6, 24, 47, 0.7) 100%);
    z-index: 1;
    transition: opacity .3s;
}
.index-about2 .about2-right .about-card:hover .about-card-mask {
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.25) 0%, rgba(37, 99, 235, 0.7) 100%);
}
.index-about2 .about2-right .about-card h3 {
    position: relative; z-index: 2;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}
.index-about2 .about2-right .about-card .more {
    position: relative; z-index: 2;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
}
.index-about2 .about2-right .about-card .more i {
    margin-left: 4px;
    transition: transform .3s;
}
.index-about2 .about2-right .about-card:hover .more i {
    transform: translateX(4px);
}
@media (max-width: 991px) {
    .index-about2 { padding: 60px 0; }
    .index-about2 .about2-left { margin-bottom: 30px; }
    .index-about2 .about2-left h2 { font-size: 28px; }
}
@media (max-width: 480px) {
    .index-about2 .about2-right .about-grid { gap: 12px; }
    .index-about2 .about2-right .about-card { min-height: 130px; padding: 16px 18px; }
    .index-about2 .about2-right .about-card h3 { font-size: 18px; }
}

/* index-customer 客户案例 */
.index-customer .customer-swp { display: none; }
.index-customer { background-color: #fff; }
.index-customer .customer-lists ul { height: 480px; overflow: hidden; }
.index-customer .customer-lists ul li {
    float: left; width: 12.5%;
    display: block; position: relative; height: 100%;
    -webkit-transition: all .5s ease; -o-transition: all .5s ease;
    -moz-transition: all .5s ease; transition: all .5s ease;
    overflow: hidden;
}
.index-customer .customer-lists ul li::after {
    content: "";
    position: absolute; left: 0; top: 0; width: 100%; height: 100%;
    background: rgba(6, 24, 47, 0.55);
    transition: opacity .3s;
}
.index-customer .customer-lists ul .customer-active::after,
.index-customer .customer-lists ul li:hover::after { background: rgba(6, 24, 47, 0.15); }

.index-customer .customer-lists ul li .customer-txt { color: #fff; }
.index-customer .customer-lists ul li:hover .img-box img {
    -webkit-transform: scale(1.1); -moz-transform: scale(1.1);
    -ms-transform: scale(1.1); -o-transform: scale(1.1);
    transform: scale(1.1);
}
.index-customer .customer-lists .customer-txt .customer-tit h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.index-customer .customer-lists .customer-txt .customer-tit p {
    white-space: nowrap;
    background: var(--primary);
    display: inline-block;
    padding: 4px 14px;
    border-radius: 3px;
    font-size: 14px;
    margin-bottom: 14px;
}
.index-customer .customer-lists .customer-txt .index-more a {
    background-color: transparent; color: #fff; border-color: #fff;
    display: none; padding: 8px 24px;
}
.index-customer .customer-lists ul .customer-active .customer-txt .index-more a { display: inline-block; }
.index-customer .customer-lists ul .customer-active:hover .customer-txt .index-more a {
    background-color: var(--primary); color: #fff; border-color: var(--primary);
}

.index-customer .customer-lists ul li .img-box { position: absolute; z-index: 1; height: 100%; width: 100%; }
.index-customer .customer-lists ul li .img-box img { height: 100%; width: auto; }
.index-customer .customer-lists ul li .customer-txt {
    position: absolute; z-index: 2; text-align: center;
    top: 50%; left: 50%;
    -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
.index-customer .customer-lists ul .customer-active .img-box img { width: 100%; }
.index-customer .customer-lists ul .customer-active { width: 37.43%; }

/* swiper 模式（移动端） */
.index-customer .customer-lists .customer-swp .index-customer-bkg {
    position: relative; border-radius: 6px; overflow: hidden;
}
.index-customer .customer-lists .customer-swp .index-customer-bkg .bkg-black {
    position: absolute; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    top: 0; border-radius: 6px;
}
.index-customer .customer-lists .customer-swp .index-customer-bkg img { width: 100%; }
.index-customer .customer-lists .customer-swp .customer-txt {
    position: absolute; top: 50%; left: 50%;
    -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
.index-customer .customer-lists .customer-swp .swiper-slide .customer-txt .customer-tit { text-align: center; }
.index-customer .customer-lists .customer-swp .swiper-slide .customer-txt .customer-tit h3 { color: #fff; font-weight: 400; }
.index-customer .customer-lists .customer-swp .swiper-slide .customer-txt .customer-tit p { color: #fff; }

/* index-stats2 数据统计 - 浅底4卡片 */
.index-stats2 {
    background: var(--bg-soft);
    padding: 0 0 80px;
}
.index-stats2 .stats-list {
    display: flex;
    flex-wrap: wrap;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}
.index-stats2 .stats-item {
    flex: 1; min-width: 200px;
    text-align: center;
    padding: 38px 20px;
    position: relative;
}
.index-stats2 .stats-item:not(:last-child)::after {
    content: "";
    position: absolute; right: 0; top: 50%;
    transform: translateY(-50%);
    width: 1px; height: 50px;
    background: #e5e7eb;
}
.index-stats2 .stats-num {
    font-size: 44px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    font-family: 'Arial', sans-serif;
}
.index-stats2 .stats-num .num-plus {
    font-size: 24px;
    margin-left: 4px;
}
.index-stats2 .stats-label {
    font-size: 14px;
    color: var(--text-gray);
    margin-top: 14px;
    letter-spacing: 1px;
}
@media (max-width: 768px) {
    .index-stats2 { padding: 0 0 50px; }
    .index-stats2 .stats-list { margin: 0 10px; }
    .index-stats2 .stats-item { flex: 50%; padding: 24px 10px; }
    .index-stats2 .stats-item::after { display: none; }
    .index-stats2 .stats-num { font-size: 32px; }
    .index-stats2 .stats-item:nth-child(1),
    .index-stats2 .stats-item:nth-child(2) { border-bottom: 1px solid #e5e7eb; }
}

/* index-service 服务 */
.index-service {
    background: var(--bg-soft);
}
.index-service .service-lists ul { margin-left: -10px; margin-right: -10px; }
.index-service .service-lists ul li {
    float: left; width: 20%;
    padding-left: 10px; padding-right: 10px; text-align: center;
}
.index-service .service-lists ul li .service-item {
    background-color: #fff;
    padding: 50px 20px;
    border-radius: 6px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all .3s;
    border: 1px solid transparent;
}
.index-service .service-lists ul li .service-item:hover {
    background-color: var(--primary);
    color: #fff; transform: translateY(-6px);
    box-shadow: 0 15px 30px rgba(37, 99, 235, 0.3);
    border-color: var(--primary);
}
.index-service .service-lists ul li .service-item .service-img {
    width: 80px; height: 80px; margin: 0 auto;
    transition: all .3s;
}
.index-service .service-lists ul li .service-item .service-img .img { width: 100%; height: 100%; }
.index-service .service-lists ul li .service-item .service-img .img2 { display: none; }
.index-service .service-lists ul li .service-item:hover .img1 { display: none; }
.index-service .service-lists ul li .service-item:hover .img2 { display: block; }
.index-service .service-lists ul li .service-item .service-txt .service-tit { font-size: 20px; margin: 16px 0 8px; font-weight: 600; }
.index-service .service-lists ul li .service-item .service-txt .service-c { font-size: 14px; color: var(--text-gray); }
.index-service .service-lists ul li .service-item:hover .service-txt .service-c { color: rgba(255, 255, 255, 0.85); }

@media (max-width: 768px) {
    .index-service .service-lists ul li { width: 100%; margin-bottom: 20px; }
    .index-service .service-lists ul li .service-item { padding: 30px 0; box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05); }
}
@media (max-width: 600px) {
    .index-service .service-lists ul li .service-item { padding: 30px 0; }
}

/* index-news 新闻 */
.index-news { background-color: #fff; }
.index-news .container { overflow: hidden; }
.index-news .news-lists ul li a {
    display: -webkit-flex; display: -moz-box;
    display: -ms-flexbox; display: flex;
    -webkit-align-items: center; -moz-box-align: center;
    -ms-flex-align: center; align-items: center;
}
.index-news .news-lists ul li a .news-date { padding-right: 20px; }
.index-news .news-lists > .row > div:nth-child(2) { overflow: hidden; }
.index-news .news-lists ul li a .news-date .year {
    text-align: right; font-size: 40px;
    color: var(--primary); line-height: 1; font-weight: 700;
}
.index-news .news-lists ul li {
    padding: 30px 10px 30px 0; border-bottom: 1px solid var(--line-light);
    transition: all .3s;
}
.index-news .news-lists ul li:hover { padding-left: 10px; }
.index-news .news-lists ul li:last-child { border-bottom: 0; }
.index-news .news-lists ul li a .news-date .day {
    white-space: nowrap; font-size: 16px; color: var(--text-gray); margin-top: 4px;
}
.index-news .news-lists ul li a .news-txt {
    padding-left: 20px; border-left: 1px solid var(--line-light);
}
.index-news .news-lists ul li:hover a .news-date .year,
.index-news .news-lists ul li:hover a .news-date .day { color: var(--primary); }
.index-news .news-lists ul li a .news-txt .news-tit {
    font-size: 17px; font-weight: 600; margin-bottom: 12px;
    color: var(--text-dark);
    transition: color .25s;
    line-height: 1.5;
}
.index-news .news-lists ul li:hover a .news-txt .news-tit { color: var(--primary); }
.index-news .news-lists ul li a .news-txt p { color: var(--text-gray); line-height: 1.6; font-size: 14px; }

.index-news .news-lists .f-r { float: right !important; }
.index-news .news-lists .f-r a { display: block; position: relative; }
.index-news .news-lists .f-r .rect-718 { padding-bottom: 74%; }
.index-news .news-lists .f-r .info {
    position: absolute; bottom: 0; left: 0; right: 0;
    width: 100%;
    background: linear-gradient(0deg, rgba(6, 24, 47, 0.85) 0%, transparent 100%);
    height: 80px;
    padding: 0 24px;
    color: #fff; font-weight: 600;
    display: flex; align-items: flex-end;
    padding-bottom: 18px;
    border-radius: 0 0 6px 6px;
    transition: all .3s;
}
.index-news .news-lists .f-r a:hover .info {
    background: linear-gradient(0deg, rgba(37, 99, 235, 0.95) 0%, rgba(37, 99, 235, 0.3) 100%);
}
.index-news .news-lists .f-r .info .tit { font-size: 17px; color: #fff; }
.index-news .news-lists .f-r a { border-radius: 6px; overflow: hidden; }
.index-news .news-lists .news-img .img-box { width: 100%; }
.index-news .news-lists .news-img img { width: 100%; height: 100%; }
.index-news .news-lists .news-img-t {
    position: absolute; bottom: 0; width: 100%; z-index: 2;
    height: 48px; line-height: 48px; color: #fff; font-weight: 700;
    padding-left: 40px; font-size: 18px;
}

/* index-video 视频 */
.index-video { position: relative; overflow: hidden; height: 567px; }
.index-video .index-video-bkg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.index-video .index-video-bkg img {
    height: 100%; width: 100%;
    -webkit-transition: all 1.5s; -o-transition: all 1.5s;
    -moz-transition: all 1.5s; transition: all 1.5s;
}
.index-video .video-content {
    text-align: center; color: #fff; position: absolute;
    width: 30%; top: 50%; left: 50%;
    -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%); z-index: 2;
}
.index-video .video-content .video-txt { font-size: 22px; margin-top: 20px; line-height: 1.8; }
.index-video .video-content .index-more a {
    color: var(--primary); background-color: #fff; border-color: #fff;
    -webkit-transition: all .5s; -o-transition: all .5s;
    -moz-transition: all .5s; transition: all .5s;
}
.index-video .video-content .index-more a:hover {
    background-color: var(--primary); border-color: var(--primary); color: #fff;
}

/* 响应式 */
.index-news .news-lists .pc { display: block; }
.index-news .news-lists .mob { display: none; }
.index-about .index-about-bkg .pc { display: block; }
.index-about .index-about-bkg .mob { display: none; }

@media (max-width: 1366px) {
    .index-banner .swiper-container .swiper-slide .container a .banner-txt strong { font-size: 44px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-more {
        width: auto; height: 56px; line-height: 56px;
        padding: 0 30px; margin-top: 20px; font-size: 18px;
    }
    .index-customer .customer-lists .customer-txt .customer-tit h3 { font-size: 18px; }
    .index-pro .swiper-main .swiper-slide a .pro-txt .pro-tit h3 { font-size: 16px; margin-bottom: 16px; margin-top: 8px; }
}
@media (max-width: 1199px) {
    .index-customer .customer-lists ul { display: none; }
    .index-customer .customer-swp { display: block; }
    .index-video .video-content { width: 564px; }
}
@media (max-width: 1024px) {
}
@media (max-width: 992px) {
    .index-banner .swiper-container { height: 440px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text1 { font-size: 18px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text3 { font-size: 22px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text2 strong { font-size: 30px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text3 p { font-size: 22px; }
}
@media (max-width: 991px) {
    .index-banner .swiper-container .swiper-slide .container a .banner-txt { top: 44%; }
}
@media (max-width: 768px) {
    .index-banner .swiper-button-next, .index-banner .swiper-button-prev { display: none; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .banner-txt3 {
        font-size: 18px; width: 75%; margin-top: 10px;
    }
    .index-news .news-lists .pc { display: none; }
    .index-news .news-lists .mob { display: block; }
}
@media (max-width: 700px) {
    .index-news .news-lists .f-r .info { width: 95.5%; }
}
@media (max-width: 640px) {
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text4 { display: none; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text3 p { font-size: 16px; }
    .index-banner .swiper-container .swiper-slide .container a .banner-txt .text2 strong { font-size: 18px; margin-bottom: 5px; }
}
@media (max-width: 600px) {
    .index-news .news-lists .f-r .info .tit { font-size: 16px; padding-left: 30px; }
    .index-news .news-lists ul li a .news-date { padding-right: 0; display: none; }
    .index-news .news-lists ul li a .news-txt { padding-left: 0; border-left: 0; }
    .index-section { padding: 60px 0; }
    .index-pro .swiper-main .swiper-slide a .pro-txt .pro-tit h3 { margin-bottom: 12px; }
}

/* ============ 设备系列 tab 切换 ============ */
.index-series {
    position: relative;
    padding: 120px 0 100px;
    overflow: hidden;
    background: var(--bg-deep);
    min-height: 720px;
}
.index-series .series-bg {
    position: absolute; inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity .8s ease;
    z-index: 0;
}
.index-series .series-bg::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(6, 24, 47, 0.55) 0%, rgba(6, 24, 47, 0.3) 50%, rgba(31, 95, 139, 0.35) 100%);
}
.index-series .series-wrap {
    position: relative; z-index: 2;
    display: flex; flex-direction: column;
    align-items: center;
}
.index-tit-light { color: #fff; }
.index-tit-light .tit-e { color: rgba(255, 255, 255, 0.7); }
.index-tit-light h3 { color: #fff; }

/* tab 列表 */
.index-series .series-tabs {
    display: flex; gap: 0;
    margin: 30px 0 60px;
    width: 100%;
    max-width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.index-series .series-tab {
    flex: 1;
    display: flex; align-items: center; justify-content: center; gap: 12px;
    padding: 18px 20px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 16px;
    letter-spacing: 2px;
    position: relative;
    cursor: pointer;
    transition: color .25s;
}
.index-series .series-tab .tab-num {
    font-family: 'Teko', sans-serif;
    font-size: 22px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.4);
    transition: color .25s;
}
.index-series .series-tab:hover,
.index-series .series-tab.active {
    color: #fff;
}
.index-series .series-tab.active .tab-num,
.index-series .series-tab:hover .tab-num { color: var(--primary-light); }

.index-series .series-tab::after {
    content: "";
    position: absolute; left: 50%; bottom: -1px;
    width: 0; height: 2px;
    background: var(--primary-light);
    transform: translateX(-50%);
    transition: width .3s;
}
.index-series .series-tab.active::after,
.index-series .series-tab:hover::after { width: 60%; }

/* slide 内容区 */
.index-series .series-slides {
    position: relative;
    width: 100%;
    min-height: 320px;
}
.index-series .series-slide {
    position: absolute; inset: 0;
    opacity: 0;
    transform: translateX(40px);
    transition: opacity .6s ease, transform .6s ease;
    pointer-events: none;
    visibility: hidden;
}
.index-series .series-slide.active {
    position: relative;
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    visibility: visible;
}
.index-series .series-info {
    max-width: 560px;
    padding: 20px 40px;
    background: rgba(6, 24, 47, 0.55);
    backdrop-filter: blur(12px);
    border-left: 4px solid var(--primary-light);
    border-radius: 6px;
}
.index-series .series-info h3 {
    color: #fff;
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}
.index-series .series-desc {
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 24px;
    letter-spacing: 1px;
}
.index-series .series-more {
    display: inline-flex; align-items: center;
    color: #fff;
    padding: 10px 22px;
    background: var(--primary);
    border-radius: 4px;
    font-size: 14px;
    letter-spacing: 2px;
    transition: all .25s;
}
.index-series .series-more i {
    margin-left: 8px;
    transition: transform .25s;
}
.index-series .series-more:hover {
    background: var(--primary-deep);
    transform: translateX(4px);
}
.index-series .series-more:hover i { transform: translateX(4px); }

/* 响应式 */
@media (max-width: 991px) {
    .index-series { padding: 80px 0 60px; min-height: 600px; }
    .index-series .series-tabs {
        flex-direction: column;
        max-width: 100%;
    }
    .index-series .series-tab { padding: 14px 20px; }
    .index-series .series-info h3 { font-size: 26px; }
    .index-series .series-slides { min-height: 280px; }
}
@media (max-width: 575px) {
    .index-series .series-info { padding: 16px 20px; }
    .index-series .series-info h3 { font-size: 22px; }
    .index-series .series-desc { font-size: 13px; }
}

/* ============ 客户案例 卡片网格 ============ */
.index-cases {
    padding: 100px 0 80px;
    background: linear-gradient(180deg, #f4f7fa 0%, #e8edf3 100%);
}
.index-cases .index-tit { margin-bottom: 60px; }
.index-cases .cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.index-cases .case-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(31, 95, 139, 0.08);
    transition: transform .3s, box-shadow .3s;
    display: flex;
    flex-direction: column;
}
.index-cases .case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(31, 95, 139, 0.18);
}
.index-cases .case-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e8edf3;
}
.index-cases .case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
}
.index-cases .case-card:hover .case-img img { transform: scale(1.08); }
.index-cases .case-info {
    padding: 18px 22px 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.index-cases .case-tit {
    font-size: 16px;
    font-weight: 700;
    color: #1a2b3c;
    line-height: 1.4;
    margin-bottom: 12px;
    transition: color .25s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.index-cases .case-card:hover .case-tit { color: var(--primary); }
.index-cases .case-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 10px;
    border-top: 1px solid #f0f3f7;
    font-size: 12px;
}
.index-cases .case-cta {
    color: var(--primary);
    font-weight: 600;
    letter-spacing: 1px;
    transition: transform .25s;
    display: inline-block;
}
.index-cases .case-card:hover .case-cta { transform: translateX(4px); }
.index-cases .case-stat {
    color: #8898a8;
    letter-spacing: 1px;
}

@media (max-width: 991px) {
    .index-cases .cases-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 575px) {
    .index-cases .cases-grid { grid-template-columns: 1fr; }
    .index-cases { padding: 60px 0 40px; }
}

/* ============ 公司新闻 双卡 + 更多新闻 ============ */
.index-news2 {
    padding: 100px 0 80px;
    background: #fff;
}
.index-news2 .index-tit { margin-bottom: 60px; }

.index-news2 .news2-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.index-news2 .news2-main {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.index-news2 .news2-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(31, 95, 139, 0.08);
    transition: transform .3s, box-shadow .3s;
    display: flex;
    flex-direction: column;
}
.index-news2 .news2-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(31, 95, 139, 0.18);
}
.index-news2 .news2-thumb {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e8edf3;
    display: flex; align-items: center; justify-content: center;
    position: relative;
}
.index-news2 .news2-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
}
.index-news2 .news2-card:hover .news2-thumb img { transform: scale(1.06); }
.index-news2 .news2-thumb-empty {
    color: #b0b8c1;
    font-size: 13px;
    letter-spacing: 1px;
}
.index-news2 .news2-thumb-empty i { margin-right: 6px; }
.index-news2 .news2-info {
    padding: 18px 22px 20px;
}
.index-news2 .news2-date {
    color: var(--primary);
    font-size: 12px;
    letter-spacing: 1px;
    margin-bottom: 8px;
    font-weight: 600;
}
.index-news2 .news2-tit {
    font-size: 17px;
    font-weight: 700;
    color: #1a2b3c;
    line-height: 1.4;
    margin-bottom: 10px;
    transition: color .25s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.index-news2 .news2-card:hover .news2-tit { color: var(--primary); }
.index-news2 .news2-desc {
    font-size: 13px;
    color: #5a6b7d;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 右侧 更多新闻 */
.index-news2 .news2-side {
    background: #fff;
    border-radius: 8px;
    padding: 24px 22px;
    box-shadow: 0 4px 16px rgba(31, 95, 139, 0.08);
    border: 1px solid #eef2f6;
    display: flex;
    flex-direction: column;
}
.index-news2 .news2-side-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 18px;
    margin-bottom: 18px;
    border-bottom: 1px solid #f0f3f7;
}
.index-news2 .news2-side-tit {
    font-size: 16px;
    font-weight: 700;
    color: #1a2b3c;
    position: relative;
    padding-left: 12px;
}
.index-news2 .news2-side-tit::before {
    content: "";
    position: absolute; left: 0; top: 4px; bottom: 4px;
    width: 3px;
    background: var(--primary);
    border-radius: 2px;
}
.index-news2 .news2-more {
    color: var(--primary);
    font-size: 12px;
    letter-spacing: 1px;
    transition: transform .25s;
    display: inline-block;
}
.index-news2 .news2-more:hover { transform: translateX(4px); }
.index-news2 .news2-side-list {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.index-news2 .news2-side-list li {
    flex: 1;
    padding: 14px 0;
    border-bottom: 1px dashed #eef2f6;
}
.index-news2 .news2-side-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.index-news2 .news2-side-list li:first-child { padding-top: 0; }
.index-news2 .news2-side-list li.news2-side-item-0,
.index-news2 .news2-side-list li.news2-side-item-1 { display: none; }
.index-news2 .news2-side-list li a {
    display: block;
    color: inherit;
}
.index-news2 .news2-side-list li h4 {
    font-size: 14px;
    font-weight: 600;
    color: #1a2b3c;
    line-height: 1.4;
    margin-bottom: 6px;
    transition: color .25s;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.index-news2 .news2-side-list li a:hover h4 { color: var(--primary); }
.index-news2 .news2-side-list li p {
    font-size: 12px;
    color: #8898a8;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 991px) {
    .index-news2 .news2-grid { grid-template-columns: 1fr; }
    .index-news2 .news2-side { margin-top: 8px; }
}
@media (max-width: 575px) {
    .index-news2 .news2-main { grid-template-columns: 1fr; }
    .index-news2 { padding: 60px 0 40px; }
}

/* ============ 联系信息 + 服务卡 ============ */
.index-contact2 {
    padding: 80px 0 80px;
    background: #eef2f6;
}
.index-contact2 .ct2-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: stretch;
}
.index-contact2 .ct2-main {
    background: #fff;
    padding: 40px 36px 36px;
    border-radius: 10px;
    box-shadow: 0 6px 24px rgba(31, 95, 139, 0.08);
}
.index-contact2 .ct2-label {
    display: inline-block;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 18px;
    position: relative;
    padding-left: 12px;
}
.index-contact2 .ct2-label::before {
    content: "";
    position: absolute; left: 0; top: 4px; bottom: 4px;
    width: 3px;
    background: var(--primary);
    border-radius: 2px;
}
.index-contact2 .ct2-tit {
    font-size: 28px;
    font-weight: 700;
    color: #1a2b3c;
    line-height: 1.4;
    margin-bottom: 20px;
}
.index-contact2 .ct2-desc {
    font-size: 14px;
    color: #5a6b7d;
    line-height: 1.8;
    margin-bottom: 28px;
}
.index-contact2 .ct2-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.index-contact2 .ct2-item {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #1a2b3c;
}
.index-contact2 .ct2-item i {
    width: 28px;
    color: var(--primary);
    font-size: 16px;
    margin-right: 4px;
}

.index-contact2 .ct2-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.index-contact2 .ct2-card {
    background: #fff;
    padding: 26px 24px;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(31, 95, 139, 0.06);
    transition: transform .3s, box-shadow .3s;
    display: block;
    color: inherit;
}
.index-contact2 .ct2-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(31, 95, 139, 0.15);
}
.index-contact2 .ct2-card-line {
    width: 30px;
    height: 2px;
    background: var(--primary);
    margin-bottom: 16px;
    transition: width .3s;
}
.index-contact2 .ct2-card:hover .ct2-card-line { width: 50px; }
.index-contact2 .ct2-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: #1a2b3c;
    margin-bottom: 10px;
    transition: color .25s;
}
.index-contact2 .ct2-card:hover h4 { color: var(--primary); }
.index-contact2 .ct2-card p {
    font-size: 13px;
    color: #6a7a8c;
    line-height: 1.7;
}

/* ============ 合作伙伴 logo 跑马灯 ============ */
.index-partners {
    padding: 60px 0 80px;
    background: #fff;
}
.index-partners .partners-tit {
    text-align: center;
    font-size: 18px;
    font-weight: 700;
    color: #1a2b3c;
    margin-bottom: 40px;
    position: relative;
    letter-spacing: 2px;
}
.index-partners .partners-marquee {
    overflow: hidden;
    position: relative;
    mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%);
}
.index-partners .partners-track {
    display: flex;
    gap: 60px;
    width: max-content;
    animation: marquee 30s linear infinite;
}
.index-partners .partners-track:hover { animation-play-state: paused; }
.index-partners .partner-logo {
    flex: 0 0 auto;
    height: 48px;
    display: flex;
    align-items: center;
    opacity: 0.5;
    transition: opacity .3s;
    filter: grayscale(100%);
}
.index-partners .partner-logo:hover {
    opacity: 1;
    filter: grayscale(0%);
}
.index-partners .partner-logo img {
    height: 100%;
    width: auto;
    max-width: 140px;
    object-fit: contain;
}
.index-partners .partner-text {
    height: auto;
    max-width: none;
    font-size: 20px;
    font-weight: 700;
    color: #1a2b3c;
    letter-spacing: 2px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    font-family: 'Arial', 'Helvetica', sans-serif;
}
.index-partners .partners-track-fallback {
    /* 兜底数据轨道，与主轨道一起组成更长的跑马灯 */
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

@media (max-width: 991px) {
    .index-contact2 .ct2-grid { grid-template-columns: 1fr; }
    .index-contact2 .ct2-main { padding: 32px 26px; }
    .index-contact2 .ct2-tit { font-size: 24px; }
}
@media (max-width: 575px) {
    .index-contact2 .ct2-cards { grid-template-columns: 1fr; }
    .index-contact2 { padding: 50px 0; }
    .index-partners .partners-track { gap: 40px; }
}

/* ============================================
   入场动画 - IntersectionObserver 触发
   ============================================ */

/* 基础：所有入场元素默认隐藏 */
.fx-up,
.fx-up-1, .fx-up-2, .fx-up-3, .fx-up-4, .fx-up-5, .fx-up-6,
.fx-up-7, .fx-up-8,
.fx-fade,
.fx-scale,
.fx-slide-l,
.fx-slide-r {
    opacity: 0;
    transition: opacity .9s cubic-bezier(.22,.61,.36,1),
                transform .9s cubic-bezier(.22,.61,.36,1);
    will-change: opacity, transform;
}
.fx-up { transform: translateY(40px); }
.fx-up-1 { transform: translateY(30px); transition-delay: 0ms; }
.fx-up-2 { transform: translateY(30px); transition-delay: 80ms; }
.fx-up-3 { transform: translateY(30px); transition-delay: 160ms; }
.fx-up-4 { transform: translateY(30px); transition-delay: 240ms; }
.fx-up-5 { transform: translateY(30px); transition-delay: 320ms; }
.fx-up-6 { transform: translateY(30px); transition-delay: 400ms; }
.fx-up-7 { transform: translateY(30px); transition-delay: 480ms; }
.fx-up-8 { transform: translateY(30px); transition-delay: 560ms; }
.fx-fade { transform: none; }
.fx-scale { transform: scale(.92); }
.fx-slide-l { transform: translateX(-40px); }
.fx-slide-r { transform: translateX(40px); }

/* 触发后 */
.fx-up.is-in,
.fx-up-1.is-in, .fx-up-2.is-in, .fx-up-3.is-in, .fx-up-4.is-in,
.fx-up-5.is-in, .fx-up-6.is-in, .fx-up-7.is-in, .fx-up-8.is-in,
.fx-fade.is-in,
.fx-scale.is-in,
.fx-slide-l.is-in,
.fx-slide-r.is-in {
    opacity: 1;
    transform: none;
}

/* Banner 加载即触发（不靠 IO，立即播放）*/
.banner-fx {
    opacity: 0;
    transform: translateY(24px);
    animation: bannerIn .9s cubic-bezier(.22,.61,.36,1) forwards;
}
.banner-fx-1 { animation-delay: 0ms; }
.banner-fx-2 { animation-delay: 180ms; }
.banner-fx-3 { animation-delay: 360ms; }
.banner-fx-4 { animation-delay: 540ms; }
@keyframes bannerIn {
    to { opacity: 1; transform: none; }
}

/* 数据统计数字 tween（避免 reflow） */
.stats-num.is-in { opacity: 1; }

/* 顶部进度条 */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 0;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    z-index: 9999;
    transition: width .1s linear;
    box-shadow: 0 1px 8px rgba(31, 95, 139, .4);
}

/* 用户偏好：减少动画 */
@media (prefers-reduced-motion: reduce) {
    .fx-up, .fx-up-1, .fx-up-2, .fx-up-3, .fx-up-4,
    .fx-up-5, .fx-up-6, .fx-up-7, .fx-up-8,
    .fx-fade, .fx-scale, .fx-slide-l, .fx-slide-r,
    .banner-fx {
        opacity: 1 !important;
        transform: none !important;
        animation: none !important;
        transition: none !important;
    }
}