/* ===== 全局基础 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background: #FFFFFF;
    color: #1A1F36;
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

/* 通用容器 */
.bxap { width: 1200px; max-width: 96%; margin: 0 auto; }

/* 通用按钮：白底蓝字 + 蓝底白字 */
.bxdb {
    display: inline-flex; align-items: center; gap: 6px;
    background: #1E88E5; color: #FFFFFF;
    padding: 10px 22px; border-radius: 24px;
    font-weight: 700; font-size: 15px;
    border: 2px solid #1E88E5;
    transition: all 0.3s ease;
}
.bxdb:hover { background: #0D47A1; border-color: #0D47A1; }
.bxdb i { font-size: 18px; }
.bxdb1 { background: #FF8A3D; border-color: #FF8A3D; color: #FFFFFF; }
.bxdb1:hover { background: #E66A1A; border-color: #E66A1A; }
.bxlnk {
    display: inline-flex; align-items: center; gap: 6px;
    background: transparent; color: #FFFFFF;
    padding: 10px 22px; border-radius: 24px;
    font-weight: 700; font-size: 15px;
    border: 2px solid rgba(255,255,255,0.6);
    transition: all 0.3s ease;
}
.bxlnk:hover { background: rgba(255,255,255,0.15); border-color: #FFFFFF; }

/* ===== 头部 ===== */
.bxhd {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.97);
    border-bottom: 3px solid #1E88E5;
    backdrop-filter: blur(8px);
}
.bxhbox {
    display: flex; align-items: center; justify-content: space-between;
    height: 72px; gap: 24px;
}
.bxlg {
    display: flex; align-items: center; gap: 10px;
    color: #1A1F36;
}
.bxlg img {
    width: 44px; height: 44px; border-radius: 12px;
    border: 2px solid #1E88E5;
    background: #1E88E5;
}
.bxlg span {
    font-size: 20px; font-weight: 700;
    display: flex; align-items: baseline; gap: 8px;
    letter-spacing: 1px;
}
.bxlg em {
    font-style: normal; font-size: 12px;
    color: #FF6B9D; font-weight: 400;
    padding: 2px 8px; border: 1px solid #FF6B9D;
    border-radius: 10px;
}
.bxnv { display: flex; gap: 4px; flex: 1; justify-content: center; }
.bxnv a {
    padding: 8px 14px; font-size: 15px;
    color: #5A6373; border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}
.bxnv a::after {
    content: ""; position: absolute; left: 50%; bottom: 2px;
    width: 0; height: 2px; background: #FF6B9D;
    transition: all 0.3s ease; transform: translateX(-50%);
}
.bxnv a:hover { color: #1E88E5; }
.bxnv a:hover::after { width: 50%; }
.bxrt { display: flex; align-items: center; gap: 12px; }
.bxmenu {
    display: none; color: #1E88E5; font-size: 26px;
    padding: 4px;
}
.bxmnv {
    display: none;
    flex-direction: column; gap: 4px;
    padding: 12px 20px 20px;
    background: #FFFFFF;
    border-top: 1px solid #E3E8F0;
}
.bxmnv a {
    color: #5A6373; padding: 10px 12px;
    border-radius: 8px; font-size: 15px;
}
.bxmnv a:hover { background: #F2F6FB; color: #1E88E5; }
.bxmnv .bxdb { color: #FFFFFF; justify-content: center; margin-top: 8px; }

/* ===== 主视觉 ===== */
.bxan {
    background: linear-gradient(135deg, #1E88E5 0%, #0D47A1 60%, #2D2A55 100%);
    position: relative; overflow: hidden;
    padding: 70px 0 80px;
}
.bxan::before {
    content: ""; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 80% 20%, rgba(255,107,157,0.28) 0, transparent 30%),
        radial-gradient(circle at 15% 80%, rgba(255,138,61,0.22) 0, transparent 35%),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.08) 0, transparent 50%);
    pointer-events: none;
}
.bxan::after {
    content: ""; position: absolute; top: -40px; right: -40px;
    width: 180px; height: 180px; border-radius: 50%;
    border: 6px solid rgba(255,107,157,0.35);
    pointer-events: none;
}
.bxbx {
    display: flex; align-items: center; gap: 40px;
    position: relative; z-index: 1;
}
.bxat { flex: 1; }
.bxseal {
    display: inline-flex; align-items: center; gap: 6px;
    color: #FFFFFF; font-size: 13px;
    padding: 5px 14px;
    background: rgba(255,107,157,0.9);
    border: 1px solid #FF6B9D;
    border-radius: 4px;
    margin-bottom: 22px;
    letter-spacing: 2px;
}
.bxat h1 {
    font-size: 66px; color: #FFFFFF;
    letter-spacing: 6px; line-height: 1.1;
    margin-bottom: 14px; font-weight: 700;
}
.bx-sub {
    font-size: 26px; color: #FFD8E4;
    letter-spacing: 2px; margin-bottom: 22px;
}
.bx-desc {
    color: #E3ECF7; font-size: 15px;
    max-width: 480px; margin-bottom: 32px;
    line-height: 1.9;
}
.bxbtn { display: flex; gap: 16px; margin-bottom: 40px; }
.bxstat { display: flex; gap: 36px; }
.bxstat li { display: flex; flex-direction: column; }
.bxstat b {
    font-size: 24px; color: #FF8A3D;
    font-weight: 700; letter-spacing: 1px;
}
.bxstat span { font-size: 13px; color: #E3ECF7; margin-top: 2px; }

/* 手机 mockup */
.bxmo {
    flex: 0 0 380px; position: relative;
    height: 520px; display: flex; justify-content: center;
}
.bxmo::before {
    content: ""; position: absolute; top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    width: 320px; height: 320px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.18) 0%, transparent 70%);
    pointer-events: none;
}
.bxmfm {
    position: absolute; top: 0; left: 50%;
    transform: translateX(-50%);
    width: 240px; height: 480px;
    border: 3px solid #FFFFFF;
    border-radius: 32px;
    background: #FFFFFF;
    padding: 10px; overflow: hidden;
}
.bxmwall {
    display: block; width: 100%; height: 12px;
    background: #1E88E5; border-radius: 6px;
    margin-bottom: 6px;
}
.bxmfm img {
    width: 100%; height: calc(100% - 18px);
    object-fit: cover; border-radius: 14px;
}
.bxmtwo {
    width: 200px; height: 400px;
    top: 80px; left: 22%;
    transform: rotate(-8deg);
    border-color: #FFD8E4;
    opacity: 0.9;
    z-index: -1;
}

/* ===== 通用 section ===== */
.bxse { padding: 72px 0; }
.bxbe { background: #F2F6FB; }
.bxtt {
    margin-bottom: 50px;
    display: flex; align-items: center; gap: 16px;
    position: relative;
}
.bxba {
    width: 8px; height: 36px; border-radius: 4px;
    background: linear-gradient(180deg, #1E88E5 0%, #FF6B9D 100%);
}
.bxtx {
    font-size: 30px; color: #1A1F36;
    letter-spacing: 4px; font-weight: 700;
}
.bxbs {
    font-size: 13px; color: #1E88E5;
    letter-spacing: 3px;
    padding: 4px 12px;
    border: 1px solid #1E88E5;
    border-radius: 4px;
}
.bxtt::after {
    content: ""; flex: 1; height: 2px;
    background: repeating-linear-gradient(90deg, #1E88E5 0 6px, transparent 6px 12px);
}

/* ===== 产品展示：翻页折角 ===== */
.bxcq {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.bxci {
    background: #FFFFFF; border: 2px solid #E3E8F0;
    border-radius: 20px; overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}
.bxci::before {
    content: ""; position: absolute; top: 0; right: 0;
    width: 32px; height: 32px;
    background: linear-gradient(225deg, #FF6B9D 50%, transparent 50%);
    z-index: 2;
}
.bxci::after {
    content: ""; position: absolute; top: 0; right: 0;
    width: 0; height: 0;
    border-style: solid;
    border-width: 0 32px 32px 0;
    border-color: transparent #FFFFFF transparent transparent;
    filter: drop-shadow(-2px 2px 1px rgba(255,107,157,0.3));
    z-index: 3;
}
.bxci:hover { transform: translateY(-6px); border-color: #1E88E5; }
.bxci:hover::before { background: linear-gradient(225deg, #1E88E5 50%, transparent 50%); }
.bxciimg { width: 100%; height: 240px; overflow: hidden; position: relative; }
.bxciimg img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.bxci:hover .bxciimg img { transform: scale(1.05); }
.bxic {
    text-align: center; padding: 14px;
    color: #1E88E5; font-size: 16px;
    font-weight: 700; letter-spacing: 1px;
    border-top: 1px dashed #E3E8F0;
    background: #FFFFFF;
    display: flex; align-items: center; justify-content: center; gap: 6px;
}
.bxic i { font-size: 18px; color: #FF6B9D; }

/* ===== 优势亮点：对话框造型 ===== */
.bxys {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.bxysc {
    background: #FFFFFF; border: 2px solid #1E88E5;
    border-radius: 20px; padding: 30px 26px;
    text-align: center; transition: all 0.3s ease;
    position: relative;
}
.bxysc::before {
    content: ""; position: absolute; bottom: -14px; left: 36px;
    width: 24px; height: 24px;
    background: #FFFFFF;
    border-right: 2px solid #1E88E5;
    border-bottom: 2px solid #1E88E5;
    transform: rotate(45deg);
    transition: all 0.3s ease;
}
.bxysc::after {
    content: ""; position: absolute; top: 14px; left: 14px;
    right: 14px; bottom: 14px;
    border: 1px dashed rgba(30,136,229,0.25);
    border-radius: 14px;
    pointer-events: none;
}
.bxysc:hover { background: #1E88E5; color: #FFFFFF; transform: translateY(-4px); border-color: #1E88E5; }
.bxysc:hover::before { background: #1E88E5; border-color: #1E88E5; }
.bxysc:hover .bxyi { background: #FF6B9D; color: #FFFFFF; border-color: #FF6B9D; }
.bxysc:hover .bxyt { color: #FFFFFF; }
.bxysc:hover .bxyd { color: #E3ECF7; }
.bxysc:hover .bxyn { color: rgba(255,107,157,0.4); }
.bxyn {
    position: absolute; top: 12px; right: 18px;
    font-size: 38px; color: rgba(30,136,229,0.30);
    font-weight: 700; line-height: 1;
    z-index: 2; transition: all 0.3s ease;
}
.bxyi {
    width: 64px; height: 64px; border-radius: 50%;
    background: #F2F6FB; color: #1E88E5;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 30px; margin: 0 auto 16px;
    border: 2px solid #1E88E5;
    position: relative; z-index: 1;
    transition: all 0.3s ease;
}
.bxyt {
    font-size: 20px; color: #1A1F36;
    font-weight: 700; margin-bottom: 10px;
    letter-spacing: 1px; position: relative; z-index: 1;
    transition: all 0.3s ease;
}
.bxyd {
    font-size: 14px; color: #5A6373;
    line-height: 1.8; position: relative; z-index: 1;
    transition: all 0.3s ease;
}

/* ===== 下载中心 ===== */
.bxdl {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.bxdli {
    background: #FFFFFF; border: 2px solid #E3E8F0;
    border-radius: 20px; padding: 28px 24px;
    text-align: center; transition: all 0.3s ease;
    position: relative; overflow: hidden;
}
.bxdli::after {
    content: ""; position: absolute; top: -40px; right: -40px;
    width: 100px; height: 100px; border-radius: 50%;
    background: rgba(30,136,229,0.10);
}
.bxdli:hover { transform: translateY(-4px); border-color: #1E88E5; background: #F2F6FB; }
.bxdlii {
    width: 60px; height: 60px; border-radius: 16px;
    background: #1E88E5; color: #FFFFFF;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 28px; margin: 0 auto 14px;
    border: 2px solid #1E88E5;
    position: relative; z-index: 1;
}
.bxdli:nth-child(2n) .bxdlii { background: #FF6B9D; border-color: #FF6B9D; }
.bxdli:nth-child(3n) .bxdlii { background: #FF8A3D; border-color: #FF8A3D; }
.bxdlt {
    font-size: 19px; color: #1A1F36; font-weight: 700;
    margin-bottom: 6px; letter-spacing: 1px;
    position: relative; z-index: 1;
}
.bxdlb {
    font-size: 13px; color: #5A6373;
    margin-bottom: 18px; position: relative; z-index: 1;
}
.bxdlr {
    display: inline-flex; align-items: center; gap: 6px;
    background: #1E88E5; color: #FFFFFF;
    padding: 9px 20px; border-radius: 22px;
    font-weight: 700; font-size: 14px;
    border: 2px solid #1E88E5;
    transition: all 0.3s ease;
    position: relative; z-index: 1;
}
.bxdlr:hover { background: #0D47A1; border-color: #0D47A1; }
.bxdlr i { font-size: 16px; }

/* ===== 使用流程 ===== */
.bxlc {
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 20px; position: relative;
}
.bxlc::before {
    content: ""; position: absolute; top: 50px; left: 12%;
    right: 12%; height: 3px;
    background: repeating-linear-gradient(90deg, #1E88E5 0 10px, transparent 10px 18px);
    z-index: 0;
}
.bxlci {
    text-align: center; position: relative; z-index: 1;
    background: #FFFFFF; border: 2px solid #1E88E5;
    border-radius: 20px; padding: 26px 18px 24px;
    transition: all 0.3s ease;
}
.bxlci:hover { transform: translateY(-4px); background: #F2F6FB; }
.bxln {
    font-size: 30px; color: #1E88E5; font-weight: 700;
    letter-spacing: 2px; margin-bottom: 10px;
}
.bxlb {
    width: 28px; height: 28px; border-radius: 50%;
    background: #FF6B9D; border: 4px solid #FFFFFF;
    margin: 0 auto 18px;
    box-shadow: 0 0 0 3px #1E88E5;
}
.bxlt {
    font-size: 18px; color: #1A1F36; font-weight: 700;
    margin-bottom: 8px; letter-spacing: 1px;
}
.bxld { font-size: 13px; color: #5A6373; line-height: 1.8; }

/* ===== 常见问题 ===== */
.bxwt {
    max-width: 880px; margin: 0 auto;
    display: flex; flex-direction: column; gap: 14px;
}
.bxwti {
    background: #FFFFFF; border: 2px solid #E3E8F0;
    border-radius: 14px; overflow: hidden;
    transition: all 0.3s ease;
}
.bxwti.active { border-color: #1E88E5; background: #F2F6FB; }
.bxwh {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 22px; cursor: pointer;
}
.bxwq {
    display: flex; align-items: center; gap: 8px;
    font-size: 16px; color: #1A1F36; font-weight: 700;
    letter-spacing: 1px;
}
.bxwq i { color: #FF6B9D; font-size: 18px; }
.bxwi {
    color: #1E88E5; font-size: 22px;
    transition: transform 0.3s ease;
}
.bxwti.active .bxwi { transform: rotate(180deg); color: #FF6B9D; }
.bxwb {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    padding: 0 22px;
}
.bxwti.active .bxwb { max-height: 200px; padding: 0 22px 18px; }
.bxwb p {
    font-size: 14px; color: #5A6373; line-height: 1.9;
    border-top: 1px dashed #E3E8F0; padding-top: 14px;
}

/* ===== 产品资讯 ===== */
.bxzx {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.bxzxi {
    background: #FFFFFF; border: 2px solid #E3E8F0;
    border-radius: 16px; padding: 24px;
    display: flex; gap: 20px; align-items: flex-start;
    transition: all 0.3s ease;
    border-left: 6px solid #1E88E5;
}
.bxzxi:nth-child(2n) { border-left-color: #FF6B9D; }
.bxzxi:nth-child(3n) { border-left-color: #FF8A3D; }
.bxzxi:hover { transform: translateX(6px); border-color: #1E88E5; }
.bxzimg {
    flex: 0 0 64px; width: 64px; height: 64px;
    border-radius: 14px; background: #F2F6FB;
    color: #1E88E5; font-size: 30px;
    display: flex; align-items: center; justify-content: center;
    border: 2px solid #1E88E5;
}
.bxztxt { flex: 1; }
.bxzt {
    font-size: 17px; color: #1A1F36; font-weight: 700;
    margin-bottom: 4px; letter-spacing: 1px; line-height: 1.5;
}
.bxzm {
    font-size: 12px; color: #FF6B9D; margin-bottom: 8px;
    letter-spacing: 1px;
}
.bxzd { font-size: 14px; color: #5A6373; line-height: 1.8; }

/* ===== 用户评价：对话气泡 ===== */
.bxpj {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px; align-items: start;
}
.bxpji {
    background: #FFFFFF; border: 2px solid #E3E8F0;
    border-radius: 20px; padding: 24px 22px;
    transition: all 0.3s ease;
    position: relative;
}
.bxpji::before {
    content: ""; position: absolute; top: 24px; left: -14px;
    width: 24px; height: 24px;
    background: #FFFFFF;
    border-left: 2px solid #E3E8F0;
    border-bottom: 2px solid #E3E8F0;
    transform: rotate(45deg);
    transition: all 0.3s ease;
}
.bxpji:hover { border-color: #1E88E5; }
.bxpji:hover::before { border-color: #1E88E5; }
.bxpji::after {
    content: "\201D"; position: absolute; top: 6px; right: 16px;
    font-size: 60px; color: #1E88E5; opacity: 0.35;
    font-family: serif; line-height: 1;
}
.bxph {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 14px;
}
.bxpa {
    width: 44px; height: 44px; border-radius: 50%;
    background: #F2F6FB; color: #1E88E5;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; border: 2px solid #1E88E5;
}
.bxpn {
    font-size: 16px; color: #1A1F36; font-weight: 700;
    letter-spacing: 1px;
}
.bxpt { font-size: 12px; color: #FF6B9D; margin-top: 2px; }
.bxpd { font-size: 14px; color: #5A6373; line-height: 1.9; }

/* ===== 页脚 ===== */
.bxft {
    background: #2D2A55; color: #E3ECF7;
    padding: 50px 0 0; border-top: 3px solid #1E88E5;
    position: relative;
}
.bxft::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0;
    height: 60px;
    background: linear-gradient(180deg, rgba(30,136,229,0.18) 0%, transparent 100%);
    pointer-events: none;
}
.bxfttop {
    display: flex; align-items: flex-start; justify-content: space-between;
    gap: 40px; padding-bottom: 30px;
    border-bottom: 1px dashed rgba(255,107,157,0.35);
    position: relative;
}
.bxftb { flex: 1; max-width: 360px; }
.bxftb .bxlg { margin-bottom: 14px; color: #FFFFFF; }
.bxftb .bxlg img { background: #1E88E5; border-color: #FFFFFF; }
.bxftd { font-size: 14px; color: #E3ECF7; line-height: 1.9; }
.bxftn {
    display: flex; flex-wrap: wrap; gap: 8px 18px;
    flex: 2; justify-content: center;
    align-content: center;
}
.bxftn a {
    color: #E3ECF7; font-size: 14px;
    padding: 4px 8px; border-radius: 6px;
    transition: all 0.3s ease;
}
.bxftn a:hover { color: #FF6B9D; background: rgba(255,107,157,0.10); }
.bxftdl { flex: 0 0 auto; }
.bxftbot {
    padding: 18px 0; text-align: center;
    font-size: 13px; color: #FFD8E4;
    display: flex; flex-direction: column; gap: 4px;
}

/* ===== 返回顶部 ===== */
.bxtop {
    position: fixed; right: 28px; bottom: 28px;
    width: 48px; height: 48px; border-radius: 50%;
    background: #1E88E5; color: #FFFFFF;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; border: 2px solid #FF6B9D;
    opacity: 0; visibility: hidden;
    transition: all 0.3s ease; z-index: 99;
}
.bxtop.show { opacity: 1; visibility: visible; }
.bxtop:hover { background: #0D47A1; border-color: #FF8A3D; }

/* ===== 移动端 (767px 断点) ===== */
@media (max-width: 767px) {
    body { font-size: 15px; }
    .bxnv, .bxrt .bxdb { display: none; }
    .bxmenu { display: block; }
    .bxhbox { height: 60px; gap: 12px; }
    .bxlg img { width: 38px; height: 38px; }
    .bxlg span { font-size: 17px; }
    .bxlg em { font-size: 10px; padding: 1px 6px; }

    .bxan { padding: 40px 0 50px; }
    .bxan::after { width: 100px; height: 100px; right: -20px; top: -20px; }
    .bxbx { flex-direction: column; gap: 30px; text-align: center; }
    .bxat { order: 2; }
    .bxmo { flex: 0 0 auto; order: 1; height: 380px; width: 100%; }
    .bxmfm { width: 180px; height: 360px; }
    .bxmtwo { width: 150px; height: 300px; }
    .bxat h1 { font-size: 42px; letter-spacing: 3px; }
    .bx-sub { font-size: 18px; }
    .bx-desc { font-size: 14px; margin: 0 auto 24px; }
    .bxbtn { justify-content: center; }
    .bxstat { justify-content: center; gap: 18px; flex-wrap: wrap; }
    .bxstat b { font-size: 20px; }

    .bxse { padding: 50px 0; }
    .bxtt { margin-bottom: 36px; gap: 10px; }
    .bxtx { font-size: 24px; letter-spacing: 2px; }
    .bxbs { display: none; }
    .bxba { height: 30px; }

    .bxcq { grid-template-columns: 1fr; gap: 18px; }
    .bxciimg { height: 200px; }

    .bxys { grid-template-columns: 1fr; gap: 18px; }
    .bxysc { padding: 24px 20px; }

    .bxdl { grid-template-columns: 1fr; gap: 18px; }

    .bxlc { grid-template-columns: 1fr; gap: 18px; }
    .bxlc::before { display: none; }

    .bxwt { gap: 12px; }
    .bxwh { padding: 14px 16px; }
    .bxwq { font-size: 15px; }

    .bxzx { grid-template-columns: 1fr; gap: 18px; }
    .bxzxi { padding: 18px; gap: 14px; }
    .bxzimg { flex: 0 0 52px; width: 52px; height: 52px; font-size: 24px; }

    .bxpj { grid-template-columns: 1fr; gap: 18px; }
    .bxpji::before { display: none; }

    .bxfttop { flex-direction: column; gap: 24px; padding-bottom: 24px; }
    .bxftn { justify-content: flex-start; }
    .bxftdl { align-self: flex-start; }
    .bxtop { right: 16px; bottom: 16px; width: 42px; height: 42px; font-size: 20px; }
}