* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: #0a2540;
    background: #e6f0fb;
    line-height: 1.6;
    overflow-x: hidden;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: radial-gradient(#bcd4f0 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: 0.35;
    z-index: -1;
    pointer-events: none;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

.mrxw {
    width: 1200px;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.kqzx {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #d4e3f5;
}
.kqzx .mrxw {
    display: flex;
    align-items: center;
    height: 68px;
    gap: 20px;
}
.puxr {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 20px;
    color: #0a2540;
}
.puxr img { width: 36px; height: 36px; border-radius: 9px; }
.vtgy {
    display: flex;
    align-items: center;
    gap: 26px;
    margin-left: auto;
}
.vtgy a {
    font-size: 15px;
    color: #475569;
    transition: color 0.2s;
}
.vtgy a:hover { color: #2563eb; }
.mqza {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #2563eb;
    color: #fff;
    padding: 10px 22px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}
.mqza:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(37, 99, 235, 0.4); }
.tbrw {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #0a2540;
    cursor: pointer;
}

/* ===== Section title ===== */
.uvcw {
    text-align: center;
    font-size: 32px;
    font-weight: 800;
    color: #0a2540;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 16px;
}
.uvcw::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 52px;
    height: 4px;
    border-radius: 4px;
    background: linear-gradient(90deg, #2563eb, #0d9488);
}

/* ===== Hero ===== */
.wlpf {
    padding: 70px 0 80px;
    position: relative;
    overflow: hidden;
}
.wlpf::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -100px;
    width: 460px;
    height: 460px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.18), transparent 70%);
    z-index: 0;
}
.wlpf::after {
    content: "";
    position: absolute;
    bottom: -140px;
    left: -120px;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.16), transparent 70%);
    z-index: 0;
}
.wlpf .ldwx {
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}
.hqol {
    flex: 0 0 420px;
    position: relative;
}
.rpyc {
    border-radius: 26px;
    overflow: hidden;
    border: 6px solid #fff;
    box-shadow: 0 30px 60px rgba(10, 37, 64, 0.22);
    transform: rotate(-3deg);
    background: #fff;
}
.rpyc img { width: 100%; height: auto; display: block; }
.xkzm, .vbqn {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    padding: 10px 16px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 600;
    color: #0a2540;
    box-shadow: 0 10px 24px rgba(10, 37, 64, 0.16);
}
.xkzm { top: 30px; left: -26px; color: #0d9488; }
.xkzm i { color: #d97706; font-size: 18px; }
.vbqn { bottom: 40px; right: -24px; color: #2563eb; }
.vbqn i { font-size: 18px; }
.vsdn { flex: 1; }
.nwrp {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
    font-size: 14px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 18px;
}
.vsdn h1 {
    font-size: 50px;
    line-height: 1.15;
    font-weight: 800;
    color: #0a2540;
    margin-bottom: 20px;
}
.qzvy { color: #2563eb; }
.kplm {
    font-size: 17px;
    color: #475569;
    margin-bottom: 30px;
    max-width: 520px;
}
.lxsr {
    font-size: 17px;
    padding: 15px 38px;
}
.wmrj {
    display: flex;
    gap: 22px;
    margin-top: 26px;
    flex-wrap: wrap;
}
.wmrj span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: #475569;
}
.wmrj i { color: #0d9488; font-size: 18px; }

/* ===== Product showcase ===== */
.rbcw { padding: 80px 0; }
.nyqd {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.xkpm {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(10, 37, 64, 0.1);
    border-bottom: 4px solid #2563eb;
    transition: transform 0.25s;
}
.xkpm:nth-child(even) { border-bottom-color: #0d9488; }
.xkpm:hover { transform: translateY(-6px); }
.xkpm img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; }
.xkpm p {
    text-align: center;
    padding: 14px;
    font-size: 15px;
    font-weight: 600;
    color: #0a2540;
}

/* ===== Advantages ===== */
.jvxe {
    padding: 80px 0;
    background: #fff;
}
.wmro {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.tlzb {
    background: #fff;
    border-radius: 16px;
    padding: 30px 26px 28px 32px;
    box-shadow: 0 10px 26px rgba(10, 37, 64, 0.08);
    border-left: 5px solid #2563eb;
    transition: transform 0.25s, box-shadow 0.25s;
    position: relative;
}
.tlzb.bn2 { border-left-color: #0d9488; }
.tlzb:hover {
    transform: translateY(-5px);
    box-shadow: 0 16px 34px rgba(10, 37, 64, 0.14);
}
.pxlc {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    color: #fff;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
}
.tlzb.bn2 .pxlc { background: linear-gradient(135deg, #0d9488, #14b8a6); }
.qvnm { font-size: 20px; font-weight: 700; color: #0a2540; margin-bottom: 8px; }
.tlzb p { font-size: 14.5px; color: #64748b; }

/* ===== Download center (dark) ===== */
.kqsd {
    padding: 80px 0;
    background: #0a2540;
    position: relative;
    overflow: hidden;
}
.kqsd::before {
    content: "";
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 65%);
    z-index: 0;
}
.kqsd .mrxw { position: relative; z-index: 1; }
.zhce { color: #fff; }
.zhce::after { background: linear-gradient(90deg, #3b82f6, #14b8a6); }
.pnvx {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.lzcm {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    padding: 22px 24px;
    color: #fff;
    transition: background 0.25s, transform 0.25s, border-color 0.25s;
}
.lzcm:hover {
    background: rgba(37, 99, 235, 0.22);
    border-color: rgba(59, 130, 246, 0.6);
    transform: translateY(-4px);
}
.pxrc {
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, #2563eb, #0d9488);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
}
.vnqz { flex: 1; font-size: 17px; font-weight: 600; }
.kwmr { font-size: 20px; color: #3b82f6; }

/* ===== Process timeline ===== */
.vbdr { padding: 80px 0; background: #e6f0fb; }
.skwn {
    display: flex;
    justify-content: space-between;
    position: relative;
    gap: 20px;
}
.skwn::before {
    content: "";
    position: absolute;
    top: 28px;
    left: 40px;
    right: 40px;
    height: 3px;
    background: linear-gradient(90deg, #2563eb, #0d9488);
    border-radius: 3px;
}
.wpxt {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}
.mzvn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid #2563eb;
    color: #2563eb;
    font-size: 22px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
.wpxt:nth-child(even) .mzvn { border-color: #0d9488; color: #0d9488; box-shadow: 0 8px 20px rgba(13, 148, 136, 0.25); }
.wpxt .qvnm { margin-bottom: 8px; }
.wpxt p { font-size: 14px; color: #64748b; padding: 0 8px; }

/* ===== FAQ ===== */
.mqzf { padding: 80px 0; background: #fff; }
.urty { max-width: 860px; margin: 0 auto; }
.vbws {
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow 0.2s, border-color 0.2s;
}
.vbws.open { border-color: #2563eb; box-shadow: 0 10px 24px rgba(37, 99, 235, 0.12); }
.kqwn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: #0a2540;
}
.kqwn i {
    font-size: 22px;
    color: #2563eb;
    transition: transform 0.3s;
}
.vbws.open .kqwn i { transform: rotate(45deg); }
.rpyl {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.rpyl p { padding: 0 24px 22px; font-size: 15px; color: #64748b; }

/* ===== News ===== */
.xlkc { padding: 80px 0; }
.qwnb {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}
.rpyo {
    background: #fff;
    border-radius: 16px;
    padding: 26px 28px;
    box-shadow: 0 10px 26px rgba(10, 37, 64, 0.08);
    border-top: 4px solid #0d9488;
    transition: transform 0.25s, box-shadow 0.25s;
}
.rpyo:nth-child(even) { border-top-color: #2563eb; }
.rpyo:hover { transform: translateY(-5px); box-shadow: 0 16px 32px rgba(10, 37, 64, 0.14); }
.mzlb { font-size: 13px; color: #94a3b8; margin-bottom: 12px; }
.rpyo .qvnm { font-size: 18px; margin-bottom: 10px; }
.rpyo p { font-size: 14.5px; color: #64748b; }

/* ===== Reviews ===== */
.ztms { padding: 80px 0; background: #fff; }
.wkpr {
    column-count: 3;
    column-gap: 22px;
}
.lvqx {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 26px 24px 20px;
    margin-bottom: 22px;
    break-inside: avoid;
    position: relative;
    transition: transform 0.25s, box-shadow 0.25s;
}
.lvqx:hover { transform: translateY(-4px); box-shadow: 0 14px 30px rgba(10, 37, 64, 0.12); }
.rnzc { font-size: 34px; color: #2563eb; opacity: 0.4; margin-bottom: 6px; }
.lvqx p { font-size: 14.5px; color: #334155; margin-bottom: 16px; }
.zpkw { display: flex; flex-direction: column; gap: 2px; }
.bnme { font-size: 14px; font-weight: 600; color: #0a2540; }
.kply { font-size: 12px; color: #94a3b8; }

/* ===== Footer ===== */
.bnsc {
    background: #0a2540;
    color: #cbd5e1;
    padding: 56px 0 26px;
}
.bnsc .mrxw {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
    padding-bottom: 28px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.wvxr { flex: 1; min-width: 240px; }
.bnsc .puxr { color: #fff; }
.bnsc .puxr img { width: 40px; height: 40px; }
.xrkq { font-size: 14px; color: #94a3b8; margin-top: 12px; max-width: 360px; }
.bnsc .vtgy { margin: 0; flex-wrap: wrap; }
.bnsc .vtgy a { color: #cbd5e1; font-size: 14px; }
.bnsc .vtgy a:hover { color: #60a5fa; }
.kvnz {
    text-align: center;
    font-size: 13px;
    color: #64748b;
    padding-top: 22px;
}

/* ===== Mobile ===== */
@media (max-width: 767px) {
    .vtgy { display: none; }
    .tbrw { display: block; }
    .kqzx .mqza { display: none; }
    .vtgy.open {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 68px;
        right: 0;
        width: 70%;
        max-width: 280px;
        height: calc(100vh - 68px);
        background: #fff;
        padding: 24px 20px;
        gap: 18px;
        box-shadow: -8px 0 30px rgba(10, 37, 64, 0.18);
        z-index: 99;
        overflow-y: auto;
    }
    .vtgy.open a { font-size: 16px; padding: 8px 0; border-bottom: 1px solid #f1f5f9; }

    .uvcw { font-size: 26px; margin-bottom: 28px; }

    .wlpf { padding: 40px 0 50px; }
    .wlpf .ldwx { flex-direction: column-reverse; gap: 40px; }
    .hqol { flex: none; width: 100%; max-width: 320px; margin: 0 auto; }
    .vsdn { text-align: center; }
    .vsdn h1 { font-size: 34px; }
    .kplm { margin-left: auto; margin-right: auto; font-size: 15px; }
    .lxsr { width: 100%; justify-content: center; }
    .wmrj { justify-content: center; }
    .xkzm { left: -10px; top: 14px; }
    .vbqn { right: -8px; bottom: 24px; }

    .rbcw, .jvxe, .kqsd, .vbdr, .mqzf, .xlkc, .ztms { padding: 56px 0; }

    .nyqd {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        scroll-snap-type: x mandatory;
        padding-bottom: 10px;
    }
    .nyqd::-webkit-scrollbar { display: none; }
    .xkpm { flex: 0 0 70%; scroll-snap-align: center; }

    .wmro { grid-template-columns: 1fr; }
    .pnvx { grid-template-columns: 1fr; }
    .skwn { flex-direction: column; gap: 28px; }
    .skwn::before { display: none; }
    .wpxt { text-align: left; display: flex; align-items: center; gap: 16px; }
    .wpxt .mzvn { margin: 0; }
    .wpxt .qvnm { margin-bottom: 0; }
    .wpxt p { padding: 0; }

    .qwnb { grid-template-columns: 1fr; }
    .wkpr { column-count: 1; }

    .bnsc .mrxw { flex-direction: column; align-items: flex-start; }
    .bnsc .mqza { width: 100%; justify-content: center; }
}