/* =========================================================
   多途网络 · 首页科技感美化层 (index-enhance.css)
   说明：
   - 本文件叠加在 index.css 之上，仅覆盖视觉，不改 HTML 结构
   - 主基调：深空蓝 + 科技青 + 霓虹紫 渐变
   - 兼容原有 swiper / wow / tab 切换 / 移动端样式
   ========================================================= */

:root {
    --dt-primary: #2981ff;
    --dt-primary-2: #5aa9ff;
    --dt-cyan: #22d3ee;
    --dt-violet: #8b5cf6;
    --dt-pink: #ec4899;
    --dt-bg-dark: #07101f;
    --dt-bg-dark-2: #0b1a30;
    --dt-grad-tech: linear-gradient(135deg, #2981ff 0%, #22d3ee 50%, #8b5cf6 100%);
    --dt-grad-text: linear-gradient(90deg, #ffffff 0%, #b8d8ff 45%, #7cdcff 100%);
    --dt-grad-card: linear-gradient(160deg, rgba(255,255,255,.85) 0%, rgba(232,243,255,.55) 100%);
    --dt-shadow-soft: 0 10px 30px -12px rgba(41,129,255,.18), 0 4px 14px -6px rgba(15,32,68,.08);
    --dt-shadow-strong: 0 20px 50px -18px rgba(41,129,255,.45), 0 6px 18px -6px rgba(15,32,68,.18);
    --dt-radius: 14px;
}

/* =================== 全局微调 =================== */
body.sm-bgGray { background: #f4f7fc; }
.section { position: relative; }

/* 注：
   - 顶部导航美化已抽到 /static/css/header-enhance.css，全站共享
   - .wow 元素强制可见也已抽到 header-enhance.css，全站共享
   本文件不再重复声明这两块 */

/* section 标题统一升级：渐变副线 + 放大主标题 */
.section .section-title { position: relative; }
.section .section-title h2 {
    font-size: 36px !important;
    font-weight: 700;
    background: linear-gradient(90deg, #1c1d1f 0%, #2981ff 60%, #22d3ee 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    line-height: 1.25 !important;
    letter-spacing: .5px;
}
.section .section-title h2::after {
    content: "";
    display: block;
    width: 64px;
    height: 4px;
    margin: 18px auto 0;
    border-radius: 2px;
    background: var(--dt-grad-tech);
    box-shadow: 0 0 12px rgba(41,129,255,.55);
}
.section .section-title p {
    font-size: 15px !important;
    color: #5b6577 !important;
    margin-top: 8px;
}
.section .section-title p.align-left::before { display:none; }

/* =================== 1. Banner 英雄区 · 深空科技风文字重设计 ===================
   设计思路（区别于专题页"白圈描边大蓝字"）：
   - 左侧渐变竖线 + 闪烁圆点（科技感引导符）
   - 主标题：深蓝渐变文字 + 立体光感（多层阴影 + drop-shadow）
   - 主标题下方一条光感分割线（96px 渐变）
   - 描述段精致深色 + 限 3 行
   - 按钮：大圆角药丸 + 双层阴影 + 箭头位移 + 流光扫过
   - swiper 切换重新触发文字进场动画
   - 分页指示器升级为科技长条
*/

/* banner-ani 上下安全留白，避免被透明 header 遮挡 */
#banner.banner.h600 .banner-ani {
    padding-top: 60px;
    padding-bottom: 28px;
    box-sizing: border-box;
    align-items: center;
}

/* banner-info：左侧加竖线装饰，限定最大宽度 */
#banner .banner-info {
    position: relative;
    padding-left: 28px;
    max-width: 680px;
    width: 100%;
}

/* 左侧装饰：渐变竖线 */
#banner .banner-info::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 36px;
    width: 3px;
    background: linear-gradient(180deg, #2981ff 0%, #22d3ee 55%, transparent 100%);
    border-radius: 2px;
    box-shadow: 0 0 14px rgba(41, 129, 255, .35);
}
/* 顶端闪烁圆点 */
#banner .banner-info::after {
    content: "";
    position: absolute;
    left: -3px;
    top: 10px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #2981ff;
    box-shadow: 0 0 12px #2981ff, 0 0 24px rgba(41, 129, 255, .55);
    animation: dt-banner-pulse 1.6s ease-in-out infinite;
}
@keyframes dt-banner-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: .55; transform: scale(.65); }
}

/* 主标题 h2：超大粗深蓝渐变 + 立体光感 */
#banner .banner-info h2 {
    display: block !important;
    font-size: 64px !important;
    font-weight: 900 !important;
    line-height: 1.1 !important;
    letter-spacing: 2px !important;
    color: #0a1f44 !important;
    margin: 0 0 6px !important;
    background: linear-gradient(135deg, #0a1f44 0%, #1e40af 45%, #2563eb 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter:
        drop-shadow(0 1px 2px rgba(255, 255, 255, .9))
        drop-shadow(0 8px 24px rgba(15, 32, 68, .25))
        drop-shadow(0 16px 40px rgba(15, 32, 68, .12));
    text-shadow: none;
    text-transform: none;
    position: relative;
    padding: 0;
    word-break: keep-all;
}
/* 主标题之后的光感装饰线 */
#banner .banner-info h2::after {
    content: "";
    display: block;
    width: 96px;
    height: 4px;
    margin: 22px 0 24px;
    background: linear-gradient(90deg, #2981ff 0%, #22d3ee 65%, transparent 100%);
    border-radius: 4px;
    box-shadow: 0 4px 14px rgba(41, 129, 255, .55);
    transform-origin: left;
}

/* 描述段 p：精致深色 + 限 3 行 */
#banner .banner-info > p {
    font-size: 16px !important;
    font-weight: 500 !important;
    line-height: 30px !important;
    color: #1f2c44 !important;
    margin: 0 0 32px !important;
    max-width: 620px;
    text-shadow: 0 1px 6px rgba(255, 255, 255, .92), 0 0 14px rgba(255, 255, 255, .55);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    letter-spacing: .3px;
}

/* CTA 按钮 .btn.active：大圆角药丸 + 双层阴影 + 箭头 + 流光 */
#banner .banner-info .btn.active {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    height: 52px !important;
    width: auto !important;
    min-width: 168px;
    padding: 0 32px !important;
    background: linear-gradient(135deg, #2981ff 0%, #22d3ee 100%) !important;
    color: #fff !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    letter-spacing: 1px;
    border-radius: 28px !important;
    border: 1px solid rgba(255, 255, 255, .35) !important;
    box-shadow:
        0 16px 36px -10px rgba(41, 129, 255, .55),
        0 6px 18px -8px rgba(34, 211, 238, .35),
        inset 0 1px 0 rgba(255, 255, 255, .25);
    transition: all .35s cubic-bezier(.2, .7, .2, 1) !important;
    position: relative;
    overflow: hidden;
    line-height: 1 !important;
    text-decoration: none;
}
#banner .banner-info .btn.active::after {
    content: "→";
    margin-left: 10px;
    display: inline-block;
    transition: transform .35s ease;
    font-weight: 400;
    font-size: 18px;
}
#banner .banner-info .btn.active::before {
    content: "";
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .4), transparent);
    transition: left .6s ease;
}
#banner .banner-info .btn.active:hover::before { left: 100%; }
#banner .banner-info .btn.active:hover {
    transform: translateY(-3px);
    box-shadow:
        0 24px 48px -12px rgba(41, 129, 255, .75),
        0 0 32px rgba(34, 211, 238, .45),
        inset 0 1px 0 rgba(255, 255, 255, .35);
    background: linear-gradient(135deg, #3a8eff 0%, #2dddee 100%) !important;
    color: #fff !important;
    border-color: rgba(255, 255, 255, .55) !important;
}
#banner .banner-info .btn.active:hover::after { transform: translateX(8px); }

/* —— swiper 切换时重新触发文字进场动画 —— */
@keyframes dt-banner-titleIn {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes dt-banner-dividerIn {
    from { opacity: 0; transform: scaleX(0); }
    to   { opacity: 1; transform: scaleX(1); }
}
@keyframes dt-banner-fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 默认所有 slide 进入动画 */
#banner .banner-info h2 {
    animation: dt-banner-titleIn 1s cubic-bezier(.2, .7, .2, 1) both;
}
#banner .banner-info h2::after {
    animation: dt-banner-dividerIn 1.1s .35s cubic-bezier(.2, .7, .2, 1) both;
}
#banner .banner-info > p {
    animation: dt-banner-fadeUp 1s .55s ease both;
}
#banner .banner-info .btn.active {
    animation: dt-banner-fadeUp 1s .8s ease both;
}

/* 当前活动 slide 重新播放动画（swiper 切换时） */
#banner .swiper-slide-active .banner-info h2 {
    animation: dt-banner-titleIn 1s cubic-bezier(.2, .7, .2, 1) both;
}
#banner .swiper-slide-active .banner-info h2::after {
    animation: dt-banner-dividerIn 1.1s .35s cubic-bezier(.2, .7, .2, 1) both;
}
#banner .swiper-slide-active .banner-info > p {
    animation: dt-banner-fadeUp 1s .55s ease both;
}
#banner .swiper-slide-active .banner-info .btn.active {
    animation: dt-banner-fadeUp 1s .8s ease both;
}

/* —— swiper 分页指示器升级为科技长条 —— */
#banner .swiper-ani .swiper-pagination .swiper-pagination-bullet {
    width: 24px !important;
    height: 4px !important;
    border-radius: 2px !important;
    background: rgba(255, 255, 255, .55) !important;
    opacity: 1 !important;
    margin: 0 5px !important;
    transition: all .35s ease;
    border: none !important;
    box-shadow: 0 1px 4px rgba(15, 32, 68, .15);
}
#banner .swiper-ani .swiper-pagination .swiper-pagination-bullet samp {
    display: none !important;
}
#banner .swiper-ani .swiper-pagination .swiper-pagination-bullet-active {
    width: 48px !important;
    background: linear-gradient(90deg, #2981ff, #22d3ee) !important;
    box-shadow: 0 0 14px rgba(34, 211, 238, .7), 0 2px 8px rgba(41, 129, 255, .4);
}

/* —— 响应式 —— */
@media screen and (max-width: 1440px) {
    #banner .banner-info h2 { font-size: 54px !important; letter-spacing: 1.5px !important; }
    #banner .banner-info > p { font-size: 15px !important; line-height: 28px !important; }
}

@media screen and (max-width: 1023px) {
    #banner.banner.h600 .banner-ani { padding-top: 28px; padding-bottom: 20px; }
    #banner .banner-info { padding-left: 16px; max-width: 100%; }
    #banner .banner-info::before { top: 8px; bottom: 22px; width: 2px; }
    #banner .banner-info::after { width: 7px; height: 7px; top: 2px; left: -2.5px; }
    #banner .banner-info h2 { font-size: 26px !important; line-height: 1.2 !important; letter-spacing: .5px !important; }
    #banner .banner-info h2::after { width: 56px; height: 3px; margin: 10px 0 14px; }
    #banner .banner-info > p { font-size: 12px !important; line-height: 20px !important; margin-bottom: 18px !important; -webkit-line-clamp: 2; }
    #banner .banner-info .btn.active {
        height: 38px !important; min-width: 130px; padding: 0 22px !important;
        font-size: 13px !important; letter-spacing: .5px;
    }
    #banner .banner-info .btn.active::after { font-size: 14px; margin-left: 6px; }
    #banner .swiper-ani .swiper-pagination .swiper-pagination-bullet { width: 16px !important; }
    #banner .swiper-ani .swiper-pagination .swiper-pagination-bullet-active { width: 32px !important; }
}

/* =================== 2. 精选推荐 =================== */
.section01 .tab-content-box {
    background: linear-gradient(180deg, #f2f4f7 0%, #e9eff8 100%) !important;
    border-radius: 18px;
    margin: 0 auto;
    width: 96%;
    max-width: 1440px;
    box-sizing: border-box;
    padding: 36px 0 !important;
    position: relative;
    overflow: hidden;
}
.section01 .tab-content-box::before {
    content: "";
    position: absolute;
    top: -100px; right: -100px;
    width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(41,129,255,.18), transparent 70%);
    pointer-events: none;
}
.section01 .tab-content-box::after {
    content: "";
    position: absolute;
    bottom: -120px; left: -120px;
    width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(139,92,246,.14), transparent 70%);
    pointer-events: none;
}

/* Tab 菜单 */
.section01 .tab-menu .tab-menu-item {
    transition: color .3s ease;
}
.section01 .tab-menu .tab-menu-item .menu-item {
    font-weight: 600;
    color: #3c4658;
}
.section01 .tab-menu .tab-menu-item:hover .menu-item { color: #2981ff; }
.section01 .tab-menu .tab-menu-item::after {
    background: linear-gradient(90deg, #2981ff, #22d3ee) !important;
    box-shadow: 0 2px 10px rgba(41,129,255,.45);
}

/* 产品卡片：玻璃拟态 + 3D hover */
.product-list > li {
    background: var(--dt-grad-card) !important;
    border: 1px solid rgba(255,255,255,.85) !important;
    border-radius: var(--dt-radius);
    overflow: hidden;
    box-shadow: var(--dt-shadow-soft);
    transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s ease, border-color .3s;
    backdrop-filter: blur(8px);
}
.product-list > li::before {
    background: linear-gradient(135deg, rgba(41,129,255,.08), rgba(34,211,238,.08)) !important;
    opacity: 0 !important;
    transition: opacity .35s ease !important;
}
.product-list > li:hover {
    transform: translateY(-10px);
    border-color: rgba(41,129,255,.45) !important;
    box-shadow: var(--dt-shadow-strong);
}
.product-list > li:hover::before { opacity: 1 !important; }

/* 顶部流光条 */
.product-list > li .product-item {
    position: relative;
}
.product-list > li .product-item::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #2981ff, #22d3ee, transparent);
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity .35s ease;
}
.product-list > li:hover .product-item::before {
    opacity: 1;
    animation: dt-shine 2s linear infinite;
}
@keyframes dt-shine {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.product-item .product-name { font-size: 17px !important; }
.product-item .product-name .on-trial {
    background: linear-gradient(135deg, rgba(235,76,38,.15), rgba(235,76,38,.05)) !important;
    color: #eb4c26 !important;
    border-radius: 4px;
}
.product-item .product-price .price {
    background: linear-gradient(90deg, #2981ff, #22d3ee);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    font-size: 24px !important;
}

/* 立即咨询按钮 */
.product-item .product-price .ask-btn a {
    border-radius: 24px;
    border: 1px solid #cfd6e3;
    transition: all .3s ease;
}
.product-list > li:hover .product-item .product-price .ask-btn a {
    background: linear-gradient(135deg, #2981ff, #22d3ee) !important;
    border-color: transparent !important;
    color: #fff !important;
    box-shadow: 0 8px 18px -6px rgba(41,129,255,.55);
}

/* =================== 3. 帮助中心 =================== */
.section02.sectionBg { background: #fff; }
.info-top-r {
    border-color: rgba(207,217,234,.6) !important;
    border-radius: 14px;
    transition: box-shadow .3s ease, transform .3s ease, border-color .3s;
    background: #fff;
    position: relative;
    overflow: hidden;
}
.info-top-r::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 14px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(41,129,255,.5), rgba(34,211,238,.5));
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity .35s ease;
    pointer-events: none;
}
.info-top-r:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 36px -16px rgba(41,129,255,.25);
}
.info-top-r:hover::before { opacity: 1; }

.info-data-list > li {
    transition: background-color .25s ease;
    padding: 4px 8px !important;
    border-radius: 6px;
    border-bottom: 1px dashed rgba(207,217,234,.5) !important;
}
.info-data-list > li:hover {
    background: linear-gradient(90deg, rgba(41,129,255,.06), transparent);
}
.info-data-list .info-data-detail .info-data-title {
    transition: color .25s ease, transform .25s ease;
}
.info-data-list > li:hover .info-data-title {
    color: #2981ff !important;
    transform: translateX(4px);
}

.sectionBg .align-left a {
    color: #2981ff !important;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 16px;
    transition: background-color .3s ease;
}
.sectionBg .align-left a:hover {
    background: rgba(41,129,255,.1);
}

/* =================== 4. 行业解决方案 =================== */
.section03 {
    background: linear-gradient(180deg, #f4f7fc 0%, #ffffff 100%);
}

/* 关键修复：原 css 中 .education/.finance/.software/.logistics/.entertainment
   这些 tab 内容 div 没有 position: relative，导致它们子元素 .module-bg
   (absolute width/height 100%) 的参考点穿到了 .section03，于是 active 时
   .module-bg 的 background-image (education_bg.jpg 等) 会覆盖整个 .section03
   包括 .section-title h2 标题！这就是"标题显示就隐藏"的根本原因。
   把 tab-content 子 div 加 position: relative，让 .module-bg 只在自己范围内定位 */
.section03 .tab-content > div {
    position: relative !important;
    visibility: visible !important;
    animation-name: none !important;
}
.section03 .tab-content > div.wow {
    visibility: visible !important;
    animation-name: none !important;
}
.section03 .tab-content > div.active {
    opacity: 1 !important;
    transform: none !important;
    visibility: visible !important;
    animation: fadeIn .5s ease both !important;
}
/* 双保险：把 .module-bg 限制在 tab 内容范围内 + 降低层级避免覆盖任何文字 */
.section03 .tab-content .module-bg {
    z-index: 0 !important;
}
.section03 .section-title,
.section03 .tab-show {
    position: relative !important;
    z-index: 5 !important;
}

.section03 .tab-menu { border-bottom-color: rgba(207,217,234,.6) !important; }
.section03 .tab-menu .tab-menu-item {
    font-weight: 600;
    transition: color .3s ease;
}
.section03 .tab-menu .active { color: #2981ff !important; }
.section03 .tab-menu .active::after {
    background: linear-gradient(90deg, #2981ff, #22d3ee) !important;
    box-shadow: 0 2px 8px rgba(41,129,255,.5);
}

.service-content {
    background: rgba(255,255,255,.65) !important;
    border: 1px solid rgba(255,255,255,.7) !important;
    border-radius: 18px;
    box-shadow: 0 25px 60px -25px rgba(41,71,128,.25);
}
.service-content .service-content-l { border-radius: 14px; overflow: hidden; }
.service-content .service-content-l img {
    transition: transform .8s ease;
}
.service-content:hover .service-content-l img { transform: scale(1.05); }

.service-content-item p {
    font-size: 15px !important;
    line-height: 26px !important;
    color: #1f2a3d !important;
}

.related-products-item li {
    transition: transform .3s ease;
}
.related-products-item li:hover { transform: translateY(-2px); }

.section03 .ask-btn,
.section03 .query-btn {
    border-radius: 24px;
    height: 40px !important;
    padding: 0 22px;
    font-weight: 600;
    transition: all .3s ease;
}
.section03 .ask-btn {
    background: linear-gradient(135deg, #2981ff 0%, #22d3ee 100%) !important;
    border: 1px solid transparent !important;
    box-shadow: 0 10px 22px -10px rgba(41,129,255,.55);
}
.section03 .ask-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px -10px rgba(41,129,255,.7);
}
.section03 .query-btn:hover {
    background: rgba(41,129,255,.08) !important;
    transform: translateY(-2px);
}

/* =================== 5. 万千客户 =================== */
.section04 {
    background:
        radial-gradient(800px 400px at 90% 30%, rgba(41,129,255,.06), transparent 60%),
        radial-gradient(700px 400px at 10% 70%, rgba(139,92,246,.05), transparent 60%),
        url(../image/user_logo.png) right calc(50% + 70px) / 52.5% no-repeat,
        #fff;
}
.user-swiper .swiper-slide .text-box {
    color: #2a3447 !important;
    line-height: 30px !important;
    position: relative;
    padding-left: 22px;
}
.user-swiper .swiper-slide .text-box::before {
    content: "“";
    position: absolute;
    left: -8px; top: -22px;
    font-size: 64px;
    color: #2981ff;
    opacity: .25;
    font-family: serif;
    line-height: 1;
}
.direction-icon .icon {
    width: 46px; height: 46px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid #d8deea;
    transition: all .3s ease;
}
.direction-icon .icon:hover {
    border-color: #2981ff;
    background: linear-gradient(135deg, #2981ff, #22d3ee);
    box-shadow: 0 8px 18px -6px rgba(41,129,255,.5);
}
.direction-icon .icon:hover .iconfont { color: #fff !important; left: 0 !important; }
.direction-icon .iconfont { transition: all .3s ease; }

/* =================== 6. 基础建设 =================== */
/* 关键：section05 完全保留原样式（背景 #ebf0f9、视频 mix-blend-mode），
   这一区不再叠加任何装饰，避免任何元素影响地球视频的混合效果 */
.section05 { overflow: hidden; }

/* 收紧上下间距：原 .section padding 80px + section-title margin-bottom 60px + li margin-top 45px
   导致第一行数字距顶部 ~240px 太靠下，整体压缩
   下 padding 设 0：让地球紧贴 .section07 顶边，避免中间空一块 */
.section.section05 {
    padding: 50px 0 0 !important;
}
.section05 .section-title {
    margin-bottom: 28px !important;
}
.section05 .infrastructure {
    height: auto !important;
    min-height: 380px;
    padding: 20px 0 0 !important;
    position: relative;
}
/* 让数据 ul 在 infrastructure 中靠上排列、行内更紧凑 */
.section05 .infrastructure_data {
    align-content: flex-start;
    row-gap: 28px;
    position: relative;
    z-index: 2;
    margin-top: 50px;
}
.section05 .infrastructure_data li {
    margin: 0 !important;
    padding: 0;
}

/* 地球背景：锚到 infrastructure 底部，紧贴 .section07 */
.section05 .infrastructure_bg {
    top: auto !important;
    bottom: 0 !important;
    height: 400px !important;
    overflow: hidden;
    z-index: 1;
}
.section05 .infrastructure .earth {
    width: 800px !important;
    height: 100% !important;
    position: relative;
    overflow: hidden;
}
/* 关键：video bottom:0 贴底；右侧稍微突出；mask 中心下移到 70% 让地球下半实、上半淡化 */
.section05 .infrastructure .earth video {
    width: 800px !important;
    height: auto !important;
    max-height: none !important;
 
    bottom: 0 !important;
    top: auto !important;
    left: auto !important;
}

.infrastructure_data li {
    position: relative;
    transition: transform .3s ease;
}
.infrastructure_data li:hover { transform: translateY(-6px); }
.infrastructure_data li h4 {
    font-size: 38px !important;
    font-weight: 800 !important;
    background: linear-gradient(135deg, #2981ff 0%, #22d3ee 100%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 18px rgba(41,129,255,.25);
    display: inline-block;
    line-height: 1.1 !important;
    margin-bottom: 4px !important;
}
.infrastructure_data li p {
    font-size: 14px !important;
    color: #44546e !important;
    margin-top: 4px;
}
.infrastructure_data li::after {
    content: "";
    display: block;
    width: 36px; height: 2px;
    background: linear-gradient(90deg, #2981ff, transparent);
    margin-top: 6px;
    border-radius: 2px;
}

/* 地球视频处理：
   1) opacity 让视频整体半透明，让地球更"漂浮淡入"
   2) mix-blend-mode multiply 让白底融合背景
   3) mask-image 中心移到 50% 75%（偏下），让地球下半实、贴底；上半淡化
   * Chromium 对 <video> 的 mix-blend-mode 支持不稳定，mask 是稳妥兜底 */
.section05 .infrastructure .earth video {
    opacity: 0.6;
    mix-blend-mode: multiply !important;
    -webkit-mask-image: radial-gradient(ellipse 75% 90% at 50% 75%, #000 35%, transparent 88%);
            mask-image: radial-gradient(ellipse 75% 90% at 50% 75%, #000 35%, transparent 88%);
    -webkit-mask-repeat: no-repeat;
            mask-repeat: no-repeat;
}

/* =================== 7. 注册区 =================== */
.section07.bg {
    height: 220px !important;
    background:
        linear-gradient(90deg, rgba(7,16,31,.85) 0%, rgba(11,28,56,.55) 50%, rgba(7,16,31,.85) 100%),
        url(../image/m-zhuche.jpg) center / cover no-repeat !important;
    position: relative;
    overflow: hidden;
}
.section07.bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(120,180,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,180,255,.06) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    pointer-events: none;
}
.section07.bg::after {
    content: "";
    position: absolute;
    width: 600px; height: 600px;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(34,211,238,.18) 0%, transparent 60%);
    pointer-events: none;
    animation: dt-pulse 5s ease-in-out infinite;
}
.section07 .register { position: relative; z-index: 2; }
.section07 .register h2 {
    font-size: 32px !important;
    color: #fff !important;
    font-weight: 700 !important;
    background: linear-gradient(90deg, #fff, #7cdcff);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 24px rgba(34,211,238,.25);
}
.section07 .registe-btn {
    min-width: 168px !important;
    height: 48px !important;
    line-height: 48px !important;
    border-radius: 28px !important;
    background: transparent;
    border: 1.5px solid rgba(255,255,255,.7) !important;
    font-size: 15px !important;
    font-weight: 600;
    margin-top: 18px !important;
    box-shadow: 0 0 24px rgba(34,211,238,.25);
    transition: all .35s ease !important;
}
.section07 .registe-btn::before {
    background: linear-gradient(135deg, #2981ff, #22d3ee) !important;
}
.section07 .registe-btn:hover {
    border-color: transparent !important;
    box-shadow: 0 16px 36px -10px rgba(34,211,238,.55);
    transform: translateY(-2px);
}
.section07 .registe-btn:hover span { color: #fff !important; font-weight: 700; }

/* =================== 通用动效 =================== */
@keyframes dt-fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* 滚动揭示（被 JS 切换 visible 类）
   注意：.section-title 已从 setupReveal 的 targets 中排除，这里再做硬保险 */
.dt-reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.dt-reveal.visible { opacity: 1; transform: translateY(0); }
.section-title.dt-reveal,
.section .section-title,
.section .section-title h2 {
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #eef2f8; }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #2981ff, #22d3ee);
    border-radius: 6px;
    border: 2px solid #eef2f8;
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #1e6fe6, #18b9d4); }

/* =================== 响应式调优 =================== */
@media screen and (max-width: 1440px) {
    .section .section-title h2 { font-size: 32px !important; }
}

@media screen and (max-width: 1023px) {
    .section .section-title h2 {
        font-size: 22px !important;
        line-height: 1.3 !important;
    }
    .section .section-title h2::after {
        width: 48px; height: 3px; margin-top: 12px;
    }
    .infrastructure_data li h4 { font-size: 22px !important; }
    .infrastructure_data li::after { display: none; }
    .infrastructure .earth::before { display: none; }
    .section07.bg { height: 140px !important; }
    .section07 .register h2 { font-size: 18px !important; }
    .section07 .registe-btn {
        min-width: 110px !important; height: 34px !important;
        line-height: 34px !important; font-size: 12px !important;
        margin-top: 10px !important;
    }
    .section01 .tab-content-box {
        border-radius: 0;
        width: 100%;
    }
}

/* 防止过深阴影在 IE/旧浏览器异常 */
@supports not (backdrop-filter: blur(8px)) {
    .product-list > li { background: #fff !important; }
    .service-content { background: #fff !important; }
}