* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: #1E4A73;
    background: #F0F4F8;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
img {
    display: block;
    max-width: 100%;
}
a {
    color: inherit;
    text-decoration: none;
}
.vbox {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶栏 */
.vtop {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(240, 244, 248, 0.88);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(46, 107, 168, 0.18);
}
.vtop .vbox {
    height: 68px;
    display: flex;
    align-items: center;
    gap: 22px;
}
.vlogo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: #1E4A73;
}
.vlogo img {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    object-fit: cover;
    box-shadow: 0 0 14px rgba(46, 107, 168, 0.4);
}
.vnav {
    display: flex;
    gap: 22px;
    margin-left: 8px;
}
.vnav a {
    font-size: 15px;
    color: #5A6B7B;
    transition: color 0.2s;
}
.vnav a:hover {
    color: #2E6BA8;
}
.vbtn {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    border-radius: 999px;
    background: rgba(46, 107, 168, 0.1);
    border: 1px solid rgba(46, 107, 168, 0.45);
    color: #2E6BA8;
    font-size: 14px;
    font-weight: 700;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}
.vbtn:hover {
    background: #2E6BA8;
    color: #fff;
    box-shadow: 0 0 22px rgba(46, 107, 168, 0.35);
}
.vbar {
    display: none;
    margin-left: auto;
    border: none;
    background: none;
    font-size: 24px;
    color: #1E4A73;
    cursor: pointer;
    padding: 4px;
}

/* Hero 冷蓝灰底 bento 拼贴 */
.vhero {
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 82% 20%, rgba(58, 139, 216, 0.14) 0%, transparent 55%),
                radial-gradient(circle at 10% 85%, rgba(46, 107, 168, 0.1) 0%, transparent 55%),
                linear-gradient(180deg, #F0F4F8 0%, #E3EAF2 100%);
    padding: 72px 0 92px;
}
.vhero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(46, 107, 168, 0.06) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 75%);
    -webkit-mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 75%);
    pointer-events: none;
}
.vhero .vbox {
    position: relative;
    z-index: 2;
}
.vhero .ldwx {
    display: flex;
    align-items: center;
    gap: 48px;
}
.vsdn {
    flex: 1;
}
.vtg {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(46, 107, 168, 0.1);
    border: 1px solid rgba(46, 107, 168, 0.4);
    color: #2E6BA8;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 20px;
}
.vsdn h1 {
    font-size: 46px;
    line-height: 1.2;
    font-weight: 900;
    letter-spacing: -1px;
    color: #1E4A73;
}
.vhlt {
    background: linear-gradient(120deg, #2E6BA8, #3A8BD8 55%, #5BA0E0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.vds {
    margin-top: 18px;
    max-width: 520px;
    font-size: 16px;
    color: #5A6B7B;
}
.vcta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 32px;
    padding: 16px 38px;
    border-radius: 14px;
    background: linear-gradient(135deg, #2E6BA8, #3A8BD8);
    color: #fff;
    font-size: 17px;
    font-weight: 800;
    box-shadow: 0 0 32px rgba(46, 107, 168, 0.3), 0 14px 30px -10px rgba(46, 107, 168, 0.5);
    transition: transform 0.2s, box-shadow 0.2s;
}
.vcta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 46px rgba(46, 107, 168, 0.45), 0 20px 36px -10px rgba(46, 107, 168, 0.6);
}
.vdt {
    margin-top: 40px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.vd {
    min-width: 96px;
    padding: 13px 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(46, 107, 168, 0.18);
}
.vd strong {
    display: block;
    font-size: 22px;
    font-weight: 900;
    color: #3A8BD8;
}
.vd span {
    font-size: 12px;
    color: #7A8B9E;
}

/* Hero 右侧 bento 拼贴墙 */
.hqol {
    flex: 1;
    display: flex;
    justify-content: center;
}
.bento {
    position: relative;
    width: 100%;
    height: 480px;
}
.bn {
    position: absolute;
    border-radius: 18px;
    object-fit: cover;
    border: 1.5px solid rgba(46, 107, 168, 0.3);
    box-shadow: 0 24px 44px -18px rgba(30, 74, 115, 0.35), 0 0 0 1px rgba(91, 160, 224, 0.08);
    transition: transform 0.35s, box-shadow 0.35s;
}
.b1 {
    top: 0;
    left: 8%;
    width: 46%;
    height: 58%;
    transform: rotate(-4deg);
    z-index: 2;
}
.b2 {
    top: 6%;
    right: 4%;
    width: 42%;
    height: 50%;
    transform: rotate(5deg);
    z-index: 3;
}
.b3 {
    bottom: 4%;
    left: 2%;
    width: 44%;
    height: 52%;
    transform: rotate(3deg);
    z-index: 4;
}
.b4 {
    bottom: 8%;
    right: 8%;
    width: 38%;
    height: 44%;
    transform: rotate(-6deg);
    z-index: 1;
    object-fit: cover;
    background: #E3EAF2;
}
.bn:hover {
    transform: rotate(0deg) translateY(-6px) scale(1.03);
    box-shadow: 0 30px 50px -18px rgba(30, 74, 115, 0.4), 0 0 28px rgba(58, 139, 216, 0.35);
    z-index: 9;
}
.bnbadge {
    position: absolute;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(91, 160, 224, 0.4);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    font-size: 13px;
    font-weight: 700;
    color: #1E4A73;
    box-shadow: 0 12px 28px -10px rgba(30, 74, 115, 0.25);
}
.bnbadge i {
    font-size: 17px;
}
.ba {
    top: 24%;
    left: -6%;
    transform: rotate(-3deg);
}
.ba i { color: #2E6BA8; }
.bb {
    bottom: 30%;
    right: -4%;
    transform: rotate(4deg);
}
.bb i { color: #5BA0E0; }

/* 模块标题 */
.mttl {
    text-align: center;
    font-size: 30px;
    font-weight: 900;
    color: #1E4A73;
    margin-bottom: 42px;
    position: relative;
}
.mttl::after {
    content: "";
    display: block;
    width: 46px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, #2E6BA8, #3A8BD8);
    margin: 12px auto 0;
    box-shadow: 0 0 12px rgba(46, 107, 168, 0.4);
}

/* 产品展示 */
.scp {
    padding: 84px 0;
    background: #F0F4F8;
}
.cpgr {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.cpit {
    border-radius: 18px;
    overflow: hidden;
    background: #FFFFFF;
    border: 1px solid rgba(46, 107, 168, 0.14);
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.cpit:hover {
    transform: translateY(-6px);
    border-color: rgba(46, 107, 168, 0.5);
    box-shadow: 0 24px 40px -18px rgba(46, 107, 168, 0.35);
}
.cpit img {
    width: 100%;
    aspect-ratio: 9 / 16;
    object-fit: cover;
}
.cpit figcaption {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 13px 10px;
    font-size: 14px;
    font-weight: 600;
    color: #5A6B7B;
}
.cpit figcaption i {
    color: #3A8BD8;
    font-size: 17px;
}

/* 优势亮点 */
.sys {
    padding: 84px 0;
    background: #E3EAF2;
}
.ysgr {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.ysit {
    position: relative;
    padding: 32px 26px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid rgba(46, 107, 168, 0.14);
    overflow: hidden;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.ysit::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(46, 107, 168, 0.7), transparent);
    opacity: 0;
    transition: opacity 0.25s;
}
.ysit:hover {
    transform: translateY(-5px);
    border-color: rgba(46, 107, 168, 0.4);
    box-shadow: 0 24px 40px -18px rgba(46, 107, 168, 0.3);
}
.ysit:hover::after {
    opacity: 1;
}
.ysic {
    width: 54px;
    height: 54px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #fff;
    margin-bottom: 18px;
}
.ya { background: linear-gradient(135deg, #2E6BA8, #3A8BD8); }
.yb { background: linear-gradient(135deg, #3A8BD8, #5BA0E0); }
.yc { background: linear-gradient(135deg, #2e7d32, #43a047); }
.yd { background: linear-gradient(135deg, #7b1fa2, #ab47bc); }
.ye { background: linear-gradient(135deg, #00838f, #26c6da); }
.yf { background: linear-gradient(135deg, #ef6c00, #ff9800); }
.ysit strong {
    display: block;
    font-size: 18px;
    color: #1E4A73;
    margin-bottom: 8px;
}
.ysit p {
    font-size: 14px;
    color: #5A6B7B;
}

/* 下载中心 */
.sxz {
    padding: 84px 0;
    background: #F0F4F8;
}
.xzgr {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.xzit {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 30px 26px;
    border-radius: 18px;
    background: #FFFFFF;
    border: 1px solid rgba(46, 107, 168, 0.18);
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.xzit:hover {
    transform: translateY(-5px);
    border-color: rgba(46, 107, 168, 0.55);
    box-shadow: 0 0 30px rgba(46, 107, 168, 0.12), 0 22px 40px -18px rgba(30, 74, 115, 0.2);
}
.xzic {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #2E6BA8;
    background: rgba(46, 107, 168, 0.1);
    border: 1px solid rgba(46, 107, 168, 0.3);
    margin-bottom: 12px;
}
.xzit strong {
    font-size: 17px;
    color: #1E4A73;
}
.xzit span {
    font-size: 13px;
    color: #7A8B9E;
}
.xzit em {
    margin-top: 16px;
    align-self: flex-start;
    font-style: normal;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, #2E6BA8, #3A8BD8);
    padding: 8px 22px;
    border-radius: 999px;
}

/* 使用流程 */
.slc {
    padding: 84px 0;
    background: #E3EAF2;
}
.lcgr {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    position: relative;
}
.lcit {
    position: relative;
    text-align: center;
    padding-top: 6px;
}
.lcit::before {
    content: "";
    position: absolute;
    top: 33px;
    left: calc(50% + 36px);
    right: calc(-50% + 36px);
    height: 2px;
    background: linear-gradient(90deg, rgba(46, 107, 168, 0.7), rgba(46, 107, 168, 0.08));
    z-index: 0;
}
.lcit:last-child::before {
    display: none;
}
.lcnm {
    position: relative;
    z-index: 1;
    width: 56px;
    height: 56px;
    margin: 0 auto 18px;
    border-radius: 16px;
    transform: rotate(45deg);
    background: #FFFFFF;
    border: 1.5px solid #2E6BA8;
    box-shadow: 0 0 18px rgba(46, 107, 168, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
}
.lcnm i {
    transform: rotate(-45deg);
    font-size: 22px;
    color: #2E6BA8;
}
.lcit strong {
    display: block;
    font-size: 17px;
    color: #1E4A73;
    margin-bottom: 8px;
}
.lcit p {
    font-size: 13px;
    color: #5A6B7B;
    padding: 0 6px;
}

/* 常见问题 */
.scj {
    padding: 84px 0;
    background: #F0F4F8;
}
.cjgr {
    max-width: 900px;
    margin: 0 auto;
}
.cjit {
    margin-bottom: 14px;
    border-radius: 14px;
    background: #FFFFFF;
    border: 1px solid rgba(46, 107, 168, 0.14);
    border-left: 3px solid transparent;
    overflow: hidden;
    transition: border-left-color 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.cjit.open {
    border-left-color: #2E6BA8;
    border-color: rgba(46, 107, 168, 0.35);
    box-shadow: 0 14px 28px -16px rgba(46, 107, 168, 0.3);
}
.cjq {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    color: #1E4A73;
}
.cjq i {
    flex-shrink: 0;
    font-size: 24px;
    color: #2E6BA8;
    transition: transform 0.3s;
}
.cjit.open .cjq i {
    transform: rotate(45deg);
}
.cja {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.cja p {
    padding: 0 24px 20px;
    font-size: 14px;
    color: #5A6B7B;
}
.cjit.open .cja {
    max-height: 220px;
}

/* 产品资讯 */
.szx {
    padding: 84px 0;
    background: #E3EAF2;
}
.zxgr {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}
.zxit {
    display: flex;
    border-radius: 18px;
    overflow: hidden;
    background: #FFFFFF;
    border: 1px solid rgba(46, 107, 168, 0.14);
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.zxit:hover {
    transform: translateY(-4px);
    border-color: rgba(46, 107, 168, 0.4);
    box-shadow: 0 22px 40px -18px rgba(46, 107, 168, 0.3);
}
.zximg {
    width: 168px;
    height: 120px;
    flex-shrink: 0;
    overflow: hidden;
    border-radius: 12px;
    margin: 14px 0 14px 14px;
}
.zximg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.35s;
}
.zxit:hover .zximg img {
    transform: scale(1.05);
}
.zxct {
    padding: 18px 20px 18px 16px;
    display: flex;
    flex-direction: column;
}
.zxct strong {
    font-size: 16px;
    color: #1E4A73;
    line-height: 1.5;
}
.zxct p {
    margin-top: 8px;
    font-size: 13px;
    color: #5A6B7B;
    flex: 1;
}
.zxct span {
    margin-top: 10px;
    font-size: 12px;
    color: #8499AD;
}

/* 用户评价 */
.spj {
    padding: 84px 0;
    background: #F0F4F8;
}
.pjgr {
    column-count: 3;
    column-gap: 20px;
}
.pjit {
    break-inside: avoid;
    margin-bottom: 20px;
    padding: 24px 22px;
    border-radius: 16px;
    background: #FFFFFF;
    border: 1px solid rgba(46, 107, 168, 0.14);
    position: relative;
}
.pjit::before {
    content: "\201C";
    position: absolute;
    top: 4px;
    right: 18px;
    font-size: 46px;
    line-height: 1;
    color: rgba(46, 107, 168, 0.2);
    font-family: Georgia, serif;
}
.pjhd {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}
.pjhd i {
    font-size: 20px;
    color: #2E6BA8;
}
.pjhd span {
    font-size: 14px;
    font-weight: 700;
    color: #1E4A73;
}
.pjhd em {
    margin-left: auto;
    font-style: normal;
    font-size: 12px;
    color: #8499AD;
}
.pjit p {
    position: relative;
    font-size: 14px;
    color: #5A6B7B;
    line-height: 1.75;
}

/* 页脚 */
.vfoot {
    padding: 44px 0;
    background: #DDE5EE;
    border-top: 1px solid rgba(46, 107, 168, 0.14);
}
.vfoot .vbox {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.vfoot .vlogo {
    color: #1E4A73;
}
.vfoot .vnav {
    margin-left: auto;
    flex-wrap: wrap;
}
.vfoot .vnav a {
    color: #5A6B7B;
    font-size: 14px;
}
.vfoot .vnav a:hover {
    color: #2E6BA8;
}

/* 移动端 */
@media (max-width: 767px) {
    .vtop .vbox {
        height: 58px;
        gap: 12px;
    }
    .vlogo {
        font-size: 16px;
    }
    .vlogo img {
        width: 32px;
        height: 32px;
    }
    .vnav {
        display: none;
        position: fixed;
        top: 58px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 14px;
        margin-left: 0;
        padding: 16px 20px;
        background: #E3EAF2;
        border-bottom: 1px solid rgba(46, 107, 168, 0.2);
        z-index: 99;
    }
    .vnav.open {
        display: flex;
    }
    .vtop .vbtn {
        display: none;
    }
    .vbar {
        display: block;
    }
    .vhero {
        padding: 40px 0 54px;
    }
    .vhero .ldwx {
        flex-direction: column-reverse;
        gap: 34px;
    }
    .vsdn h1 {
        font-size: 29px;
    }
    .vds {
        font-size: 15px;
    }
    .vcta {
        width: 100%;
        justify-content: center;
    }
    .bento {
        height: 300px;
    }
    .b1 { left: 4%; width: 50%; height: 56%; }
    .b2 { right: 2%; width: 44%; height: 48%; }
    .b3 { left: 0; width: 48%; height: 50%; }
    .b4 { right: 4%; width: 40%; height: 42%; }
    .bnbadge {
        padding: 7px 12px;
        font-size: 11px;
        border-radius: 11px;
    }
    .bnbadge i {
        font-size: 14px;
    }
    .ba { top: 18%; left: -4%; }
    .bb { bottom: 28%; right: -2%; }
    .vdt {
        gap: 10px;
    }
    .vd {
        min-width: calc(50% - 5px);
        padding: 10px 14px;
    }
    .mttl {
        font-size: 24px;
        margin-bottom: 28px;
    }
    .scp, .sys, .sxz, .slc, .scj, .szx, .spj {
        padding: 52px 0;
    }
    .cpgr {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        padding-bottom: 10px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }
    .cpit {
        flex: 0 0 68%;
        scroll-snap-align: start;
    }
    .ysgr {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .xzgr {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .lcgr {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .lcit {
        display: flex;
        align-items: flex-start;
        text-align: left;
        gap: 16px;
        padding-bottom: 26px;
    }
    .lcit::before {
        top: 28px;
        left: 27px;
        right: auto;
        width: 2px;
        height: calc(100% - 30px);
        background: linear-gradient(180deg, rgba(46, 107, 168, 0.7), rgba(46, 107, 168, 0.08));
    }
    .lcnm {
        margin: 0;
        flex-shrink: 0;
    }
    .zxgr {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .zximg {
        width: 128px;
        height: 96px;
    }
    .zxct {
        padding: 14px 16px 14px 12px;
    }
    .zxct p {
        display: none;
    }
    .pjgr {
        column-count: 1;
    }
    .vfoot .vnav {
        margin-left: 0;
        gap: 14px;
    }
}