/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "Microsoft YaHei", sans-serif;
    color: #333;
    background-color: #f8fafc;
    line-height: 1.6;
}
ul {
    list-style: none;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    max-width: 100%;
    display: block;
}
.main-container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.section-head {
    text-align: center;
    margin-bottom: 50px;
}
.section-title {
    font-size: 32px;
    color: #165DFF;
    margin-bottom: 12px;
    position: relative;
}
.section-title::after {
    content: "";
    width: 60px;
    height: 3px;
    background: #165DFF;
    display: block;
    margin: 10px auto 0;
}
.section-sub {
    font-size: 16px;
    color: #666;
}
.more-btn-box {
    text-align: center;
    margin-top: 40px;
}
.more-link {
    display: inline-block;
    padding: 10px 30px;
    border: 1px solid #165DFF;
    color: #165DFF;
    border-radius: 30px;
    transition: all 0.3s ease;
}
.more-link:hover {
    background: #165DFF;
    color: #fff;
}
/* 顶部导航 */
.header-top {
    background: #fff;
    box-shadow: 0 2px 10px rgba(22, 93, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 999;
}
.header-container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
}
.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #165DFF;
}
.nav-ul {
    display: flex;
    gap: 35px;
}
.nav-a {
    font-size: 16px;
    padding: 8px 0;
    position: relative;
    transition: color 0.3s;
}
.nav-li.active .nav-a,
.nav-a:hover {
    color: #165DFF;
}
.nav-li.active .nav-a::after,
.nav-a:hover::after {
    content: "";
    width: 100%;
    height: 2px;
    background: #165DFF;
    position: absolute;
    bottom: 0;
    left: 0;
}
/* Banner首屏 */
.banner-wrap {
    height: 520px;
    background: linear-gradient(135deg, #165DFF 0%, #36bfff 100%);
    background-size: 300% 300%;
    animation: bannerBgFlow 6s linear infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.banner-wrap::before,
.banner-wrap::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.35;
    pointer-events: none;
}
.banner-wrap::before {
    width: 300px;
    height: 300px;
    background: #fff;
    top: 10%;
    left: 5%;
    animation: floatBall1 10s ease-in-out infinite alternate;
}
.banner-wrap::after {
    width: 400px;
    height: 400px;
    background: #87d0ff;
    bottom: 5%;
    right: 8%;
    animation: floatBall2 12s ease-in-out infinite alternate;
}
@keyframes bannerBgFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes floatBall1 {
    0% { transform: translate(0,0) scale(1); }
    100% { transform: translate(120px,-80px) scale(1.2); }
}
@keyframes floatBall2 {
    0% { transform: translate(0,0) scale(1); }
    100% { transform: translate(-150px,100px) scale(0.8); }
}
.banner-content {
    position: relative;
    z-index: 2;
}
.banner-title {
    font-size: 46px;
    margin-bottom: 20px;
    animation: titleBigMove 1s ease forwards;
    opacity: 0;
    text-shadow: 0 0 15px rgba(255,255,255,0.4);
}
.banner-desc {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
    animation: descBigMove 1s ease 0.3s forwards;
    opacity: 0;
}
.banner-btn-group {
    display: flex;
    gap: 25px;
    justify-content: center;
    animation: btnBigMove 1s ease 0.6s forwards;
    opacity: 0;
}
@keyframes titleBigMove {
    from { opacity: 0; transform: translateY(-60px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes descBigMove {
    from { opacity: 0; transform: translateY(60px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes btnBigMove {
    from { opacity: 0; transform: translateY(80px); }
    to { opacity: 1; transform: translateY(0); }
}
.banner-btn {
    padding: 14px 40px;
    border-radius: 50px;
    font-size: 17px;
    transition: all 0.3s ease;
}
.banner-btn.primary {
    background: #fff;
    color: #165DFF;
    font-weight: 500;
}
.banner-btn.primary:hover {
    background: #f0f7ff;
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0,0,0,0.18);
}
.banner-btn.outline {
    border: 2px solid #fff;
    color: #fff;
}
.banner-btn.outline:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-8px) scale(1.05);
}
/* 核心服务板块 */
.service-section {
    padding: 80px 0;
}
.service-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.service-card {
    background: #fff;
    padding: 35px 20px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(22, 93, 255, 0.08);
    transition: all 0.3s ease;
}
.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(22, 93, 255, 0.15);
}
.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}
.card-title {
    font-size: 20px;
    color: #1a1a1a;
    margin-bottom: 12px;
}
.card-text {
    color: #666;
    font-size: 15px;
}
/* 数据统计栏 */
.data-stat-section {
    background: linear-gradient(90deg, #0f48cc, #165DFF);
    padding: 60px 0;
    margin: 40px 0;
}
.data-row {
    width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    color: #fff;
}
.data-number {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 10px;
}
.data-label {
    font-size: 16px;
    opacity: 0.9;
}
/* 优势&FAQ通用卡片样式（一行4栏） */
.advantage-section, .faq-section {
    padding: 80px 0;
}
.advantage-row, .faq-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.adv-card, .faq-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    transition: all 0.3s;
}
.adv-card:hover, .faq-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 25px rgba(22, 93, 255, 0.12);
}
.adv-img, .faq-img {
    height: 200px;
    overflow: hidden;
}
.adv-img img, .faq-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}
.adv-card:hover img, .faq-card:hover img {
    transform: scale(1.08);
}
.adv-text, .faq-text {
    padding: 22px;
}
.adv-text h4, .faq-text h4 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #165DFF;
}
.adv-text p, .faq-text p {
    color: #666;
    font-size: 15px;
}
/* 底部转化区块 大幅光效动画 */
.action-banner-section {
    background: #0d3cad;
    padding: 70px 0;
    margin: 60px 0;
    position: relative;
    overflow: hidden;
    background-image:
        radial-gradient(circle at 15% 20%, rgba(255,255,255,0.12) 0%, transparent 45%),
        radial-gradient(circle at 85% 70%, rgba(135,208,255,0.08) 0%, transparent 50%);
    background-size: 250% 250%;
    animation: actionBgFlow 9s linear infinite;
}
.action-banner-section::before,
.action-banner-section::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.3;
}
.action-banner-section::before {
    width: 350px;
    height: 350px;
    background: #fff;
    top: 0;
    left: 0;
    animation: floatLight1 11s ease-in-out infinite alternate;
}
.action-banner-section::after {
    width: 450px;
    height: 450px;
    background: #64b5ff;
    bottom: 0;
    right: 0;
    animation: floatLight2 14s ease-in-out infinite alternate;
}
@keyframes actionBgFlow {
    0% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
    100% { background-position: 0% 0%; }
}
@keyframes floatLight1 {
    0% { transform: translate(0,0) scale(1); }
    100% { transform: translate(180px,120px) scale(1.3); }
}
@keyframes floatLight2 {
    0% { transform: translate(0,0) scale(1); }
    100% { transform: translate(-200px,-150px) scale(0.7); }
}
.action-inner {
    width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    position: relative;
    z-index: 2;
    animation: actionInMove 1s ease forwards;
    opacity: 0;
}
@keyframes actionInMove {
    from { opacity: 0; transform: translateY(100px); }
    to { opacity: 1; transform: translateY(0); }
}
.action-text-box .action-main-title {
    font-size: 34px;
    margin-bottom: 12px;
    font-weight: bold;
    text-shadow: 0 0 12px rgba(255,255,255,0.5);
    animation: titleShine 4s ease-in-out infinite alternate;
}
@keyframes titleShine {
    from { text-shadow: 0 0 12px rgba(255,255,255,0.5); }
    to { text-shadow: 0 0 20px rgba(255,255,255,0.7), 0 0 35px rgba(135,208,255,0.4); }
}
.action-text-box p {
    font-size: 17px;
    opacity: 0.9;
}
.action-button-group {
    display: flex;
    gap: 20px;
}
.action-btn {
    padding: 15px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}
.action-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,transparent,rgba(255,255,255,0.4),transparent);
    transition: left 0.6s ease;
}
.action-btn:hover::before {
    left: 100%;
}
.reg-btn {
    background: #fff;
    color: #165DFF;
}
.reg-btn:hover {
    background: #f0f7ff;
    transform: translateY(-8px) scale(1.04);
    box-shadow: 0 12px 30px rgba(0,0,0,0.2);
}
.service-btn {
    border: 2px solid #fff;
    color: #fff;
}
.service-btn:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-8px) scale(1.04);
}
/* 页脚 */
.footer-wrap {
    background: #151b28;
    color: #ccc;
    padding: 50px 0 20px;
}
.footer-container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
.footer-contact h4 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 20px;
}
.footer-contact p {
    margin-bottom: 10px;
    font-size: 15px;
}
.footer-link {
    margin-top: 30px;
}
.footer-link a {
    margin: 0 10px;
    color: #aaa;
}
.footer-link a:hover {
    color: #165DFF;
}
.copyright-box {
    width: 1200px;
    margin: 40px auto 0;
    padding-top: 20px;
    border-top: 1px solid #2c3342;
    text-align: center;
    font-size: 14px;
    color: #999;
}

/* 专题 */
        .single-content-box {
            background: #fff;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 4px 15px rgba(22,93,255,0.08);
            margin-bottom: 60px;
        }
        .content-body img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 15px 0;
        }
        .content-body p {
            line-height: 1.8;
            margin-bottom: 16px;
            color: #333;
        }
        @media screen and (max-width:768px) {
            .single-content-box {
                padding: 20px !important;
            }
        }
/* 新闻 */
    .sub-nav-wrap {
        background: #fff;
        padding: 25px 0;
        padding-left: 15px;
        padding-right: 15px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    }
    .sub-nav-box {
        max-width: 1200px;
        width: 100%;
        margin: 0 auto;
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
        padding: 0;
    }
    .sub-nav-box a {
        padding: 7px 16px;
        border-radius: 30px;
        border: 1px solid #eee;
        transition: 0.3s;
        font-size: 14px;
        white-space: nowrap;
    }
    .sub-nav-box a.btn-info {
        background: #165DFF;
        color: #fff;
        border-color: #165DFF;
    }
    .sub-nav-box a.btn-light:hover {
        border-color: #165DFF;
        color: #165DFF;
    }
    .news-list {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }
    .news-item {
        display: flex;
        gap: 20px;
        background: #fff;
        border-radius: 14px;
        padding: 20px;
        box-shadow: 0 3px 12px rgba(22,93,255,0.07);
        transition: all 0.3s;
    }
    .news-item:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 22px rgba(22,93,255,0.12);
    }
    .news-item-img {
        width: 220px;
        height: 140px;
        overflow: hidden;
        border-radius: 10px;
    }
    .news-item-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: 0.4s;
    }
    .news-item:hover img {
        transform: scale(1.08);
    }
    .news-item-text {
        flex: 1;
    }
    .news-item-text h2 {
        font-size: 20px;
        margin-bottom: 10px;
    }
    .news-item-text h2 a {
        color: #1a1a1a;
    }
    .news-item-text h2 a:hover {
        color: #165DFF;
    }
    .news-info {
        font-size: 14px;
        color: #999;
        margin-bottom: 12px;
    }
    .news-desc {
        color: #666;
        line-height: 1.7;
    }
    .page-box {
        text-align: center;
        margin-top: 50px;
    }
    .page-box a {
        display: inline-block;
        padding: 6px 14px;
        border: 1px solid #ddd;
        margin: 0 4px;
        border-radius: 4px;
    }
    .page-box a:hover {
        background: #165DFF;
        color: #fff;
        border-color: #165DFF;
    }
    @media screen and (max-width:768px) {
        .news-item {
            flex-direction: column;
        }
        .news-item-img {
            width: 100%;
        }
        .sub-nav-box {
            justify-content: center;
            gap: 10px;
        }
        .sub-nav-box a {
            padding: 6px 12px;
            font-size: 13px;
        }
    }
    @media screen and (max-width:480px) {
        .sub-nav-box {
            gap: 8px;
        }
        .sub-nav-box a {
            padding: 5px 10px;
            font-size: 12px;
        }
    }
/* 详情 */
        /* 内页独有微调，不污染公共样式 */
        .detail-body img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 15px 0;
        }
        .detail-body p {
            margin-bottom: 16px;
            line-height: 1.8;
        }
        .page-box {
            border-top: 1px solid #eee;
            padding-top: 30px;
            margin-top: 50px;
        }
        .to_prev, .to_next {
            display: block;
            margin: 10px 0;
            color: #333;
        }
        .to_prev a, .to_next a {
            color: #165DFF;
        }
        .news-info {
            color: #999;
            font-size: 14px;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid #eee;
        }
        .detail-title {
            font-size: 30px;
            color: #1a1a1a;
            text-align: center;
            margin-bottom: 15px;
            line-height: 1.4;
        }
        @media screen and (max-width:768px) {
            .news-list-section {
                padding: 20px !important;
            }
            .detail-title {
                font-size: 24px;
            }
        }
/* 服务 */
        .single-content-box {
            background: #fff;
            border-radius: 16px;
            padding: 40px;
            box-shadow: 0 4px 15px rgba(22,93,255,0.08);
            margin-bottom: 60px;
        }
        .content-body img {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            margin: 15px 0;
        }
        .content-body p {
            line-height: 1.8;
            margin-bottom: 16px;
            color: #333;
        }
        @media screen and (max-width:768px) {
            .single-content-box {
                padding: 20px !important;
            }
        }

/* 移动端适配 */
@media screen and (max-width:1200px) {
    .header-container, .main-container, .data-row, .action-inner, .footer-container, .copyright-box {
        width: 100%;
    }
}
@media screen and (max-width:768px) {
    .header-container {
        flex-direction: column;
        gap:15px;
    }
    .nav-ul {
        flex-wrap: wrap;
        justify-content: center;
        gap:20px;
    }
    .banner-title {
        font-size: 30px;
    }
    .service-row, .data-row {
        grid-template-columns: 1fr;
    }
    /* 平板双列 */
    .advantage-row, .faq-row {
        grid-template-columns: repeat(2, 1fr);
    }
    .action-inner {
        flex-direction: column;
        text-align: center;
        gap:30px;
    }
}
/* 手机超小屏单列 */
@media screen and (max-width:480px) {
    .advantage-row, .faq-row {
        grid-template-columns: 1fr;
    }
}