* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #f6f9fe;
    color: #12264d;
    line-height: 1.7;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    display: block;
    max-width: 100%;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 84px 20px 0;
}

/* ===================== 模块标题 ===================== */
.gvwcgv {
    text-align: center;
    font-size: 30px;
    font-weight: 900;
    letter-spacing: 2px;
    color: #12264d;
}

.gvwcgv::after {
    content: "";
    display: block;
    width: 44px;
    height: 4px;
    border-radius: 2px;
    margin: 12px auto 0;
    background: linear-gradient(90deg, #1a7ef0, #ff7a2f);
}

/* ===================== 头部 ===================== */
.mnswa {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e3ecfa;
}

.payvw {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.rparz {
    display: flex;
    align-items: center;
    gap: 10px;
}

.vshdk {
    width: 34px;
    height: 34px;
    border-radius: 9px;
}

.gdzmv {
    font-size: 19px;
    font-weight: 800;
    color: #12264d;
    letter-spacing: 0.5px;
}

.tspvrm {
    display: flex;
    gap: 24px;
}

.tspvrm a {
    font-size: 14.5px;
    color: #45577c;
    transition: color 0.2s;
}

.tspvrm a:hover {
    color: #1a7ef0;
}

.vmsta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.spqgh {
    display: inline-flex;
    align-items: center;
    padding: 9px 20px;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    border-radius: 999px;
    box-shadow: 0 6px 14px rgba(26, 126, 240, 0.32);
    transition: transform 0.2s;
}

.spqgh:hover {
    transform: translateY(-2px);
}

.trvhv {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: #eaf3fe;
    color: #1a7ef0;
    font-size: 20px;
    align-items: center;
    justify-content: center;
}

.zqybd {
    position: absolute;
    top: 62px;
    left: 20px;
    right: 20px;
    background: #ffffff;
    border: 1px solid #e3ecfa;
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(18, 38, 77, 0.14);
    padding: 10px 6px;
    display: none;
    flex-direction: column;
}

.zqybd.open {
    display: flex;
}

.mqeva {
    padding: 11px 18px;
    border-radius: 10px;
    font-size: 14.5px;
    color: #33456b;
    transition: background 0.2s;
}

.mqeva:hover {
    background: #f0f6ff;
    color: #1a7ef0;
}

/* ===================== Hero ===================== */
.xncfc {
    position: relative;
    max-width: none;
    width: 100%;
    padding: 64px 20px 76px;
    background: linear-gradient(180deg, #eaf3ff 0%, #f6f9fe 100%);
    overflow: hidden;
}

.gmjre {
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26, 126, 240, 0.14), transparent 68%);
    top: -140px;
    right: -110px;
}

.csfnr {
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 122, 47, 0.12), transparent 68%);
    bottom: -150px;
    left: -120px;
}

.kyqhr {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 52px;
    align-items: center;
}

.cxwtdx {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: 999px;
    background: #ffffff;
    border: 1px solid #d5e5fb;
    color: #1a7ef0;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 6px 14px rgba(26, 126, 240, 0.1);
}

.dwyvxw {
    margin-top: 20px;
    font-size: 56px;
    font-weight: 900;
    letter-spacing: 2px;
    color: #12264d;
    line-height: 1.2;
}

.dqgxk {
    margin-top: 18px;
    font-size: 15.5px;
    color: #5a6c92;
    max-width: 480px;
}

.kzvgm {
    margin-top: 28px;
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.vtbycf {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 14px 36px;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    color: #ffffff;
    font-size: 16px;
    font-weight: 800;
    border-radius: 999px;
    box-shadow: 0 10px 24px rgba(26, 126, 240, 0.36);
    transition: transform 0.2s;
}

.vtbycf:hover {
    transform: translateY(-3px);
}

.xkasf {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 13px;
    color: #6d7fa3;
}

.xkasf i {
    color: #21b573;
    font-size: 16px;
}

/* 书架样机 */
.pkzkf {
    position: relative;
}

.ejabj {
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 24px;
    padding: 18px;
    box-shadow: 0 24px 48px rgba(18, 38, 77, 0.12);
}

.kgngj {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 15px;
    font-weight: 800;
    color: #12264d;
    padding: 2px 4px 14px;
}

.kgngj i {
    color: #1a7ef0;
    font-size: 19px;
}

.kgngj span {
    margin-left: auto;
    padding: 4px 12px;
    border-radius: 999px;
    background: #fff3ea;
    color: #ff7a2f;
    font-size: 12px;
    font-weight: 700;
}

.rjsedr {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.jfkqcz {
    position: relative;
    height: 148px;
    border-radius: 12px;
    background: linear-gradient(160deg, #7db6ff, #2f7fe0);
}

.jfkqcz::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 10px;
    transform: translateX(-50%);
    width: 58%;
    height: 7px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.75);
}

.jfkqcz:nth-child(2) {
    background: linear-gradient(160deg, #ffb27d, #e2632e);
}

.jfkqcz:nth-child(3) {
    background: linear-gradient(160deg, #9d8cff, #5a43d6);
}

.jfkqcz:nth-child(4) {
    background: linear-gradient(160deg, #6fd8c3, #1f9e83);
}

.jfkqcz:nth-child(5) {
    background: linear-gradient(160deg, #ff8fb0, #d64a74);
}

.jfkqcz:nth-child(6) {
    background: linear-gradient(160deg, #ffd66f, #e89a23);
}

.ngwhaa,
.mmagg {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 14px;
    padding: 10px 16px;
    box-shadow: 0 14px 30px rgba(18, 38, 77, 0.14);
}

.ngwhaa {
    top: -20px;
    right: -12px;
}

.mmagg {
    bottom: -22px;
    left: -14px;
}

.ngwhaa i,
.mmagg i {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: #ffffff;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
}

.mmagg i {
    background: linear-gradient(135deg, #ff9a4d, #ff7a2f);
}

.ngwhaa p,
.mmagg p {
    font-size: 12px;
    color: #6d7fa3;
    line-height: 1.4;
}

.ngwhaa span,
.mmagg span {
    font-size: 15px;
    font-weight: 800;
    color: #12264d;
    line-height: 1.3;
}

/* ===================== 产品展示 ===================== */
.whzbs {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.eafjm {
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 26px rgba(18, 38, 77, 0.07);
    transition: transform 0.25s;
}

.eafjm:hover {
    transform: translateY(-4px);
}

.eafjm img {
    width: 100%;
    height: auto;
}

.panfa {
    padding: 12px 16px;
    border-top: 1px solid #eef3fc;
    font-size: 14.5px;
    font-weight: 700;
    color: #33456b;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panfa::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a7ef0, #ff7a2f);
}

/* ===================== 优势亮点 ===================== */
.rzbbf {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.frybx {
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 16px;
    padding: 24px 22px;
    box-shadow: 0 8px 22px rgba(18, 38, 77, 0.06);
    transition: transform 0.25s;
}

.frybx:hover {
    transform: translateY(-4px);
}

.pachs {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 13px;
    font-size: 22px;
    color: #ffffff;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    box-shadow: 0 8px 16px rgba(26, 126, 240, 0.28);
}

.frybx:nth-child(even) .pachs {
    background: linear-gradient(135deg, #ff9a4d, #ff7a2f);
    box-shadow: 0 8px 16px rgba(255, 122, 47, 0.28);
}

.kzrby {
    margin-top: 16px;
    font-size: 16.5px;
    font-weight: 800;
    color: #12264d;
}

.knhxnz {
    margin-top: 8px;
    font-size: 13.8px;
    color: #6d7fa3;
}

/* ===================== 下载中心 ===================== */
.ybgbd {
    margin-top: 40px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.dqqbv {
    display: flex;
    align-items: center;
    gap: 14px;
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 16px;
    padding: 18px;
    box-shadow: 0 8px 22px rgba(18, 38, 77, 0.06);
    transition: transform 0.25s, box-shadow 0.25s;
}

.dqqbv:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(26, 126, 240, 0.14);
}

.asjyz {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 16px rgba(26, 126, 240, 0.26);
}

.asjyz img {
    width: 30px;
    height: 30px;
    border-radius: 7px;
}

.ebgnr {
    flex: 1;
    min-width: 0;
}

.jrthw {
    font-size: 15px;
    font-weight: 800;
    color: #12264d;
    line-height: 1.5;
}

.ghdcc {
    margin-top: 4px;
    font-size: 13px;
    color: #6d7fa3;
    line-height: 1.6;
}

.qhjvnx {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #fff3ea;
    color: #ff7a2f;
    font-size: 19px;
    border: 1px solid #ffd9bd;
    transition: background 0.2s, color 0.2s;
}

.qhjvnx:hover {
    background: #ff7a2f;
    color: #ffffff;
}

/* ===================== 使用流程（时间轴） ===================== */
.ejyzv {
    position: relative;
    max-width: 720px;
    margin: 44px auto 0;
}

.ejyzv::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 8px;
    bottom: 8px;
    width: 3px;
    transform: translateX(-50%);
    border-radius: 2px;
    background: linear-gradient(180deg, #1a7ef0, #ff7a2f);
}

.waxpd {
    position: relative;
    width: 50%;
    padding: 0 46px 34px 0;
}

.waxpd:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 34px 46px;
}

.waxpd:last-child {
    padding-bottom: 0;
}

.wpjyj {
    position: absolute;
    top: 0;
    right: -23px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    color: #ffffff;
    font-size: 20px;
    border: 5px solid #f6f9fe;
    box-shadow: 0 8px 18px rgba(26, 126, 240, 0.3);
    z-index: 1;
}

.waxpd:nth-child(even) .wpjyj {
    right: auto;
    left: -23px;
    background: linear-gradient(135deg, #ff9a4d, #ff7a2f);
    box-shadow: 0 8px 18px rgba(255, 122, 47, 0.3);
}

.fbmgm {
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 14px;
    padding: 16px 20px;
    box-shadow: 0 8px 22px rgba(18, 38, 77, 0.06);
}

.waxpd:nth-child(odd) .fbmgm {
    text-align: right;
}

.races {
    font-size: 16px;
    font-weight: 800;
    color: #12264d;
}

.qcjwx {
    margin-top: 6px;
    font-size: 13.5px;
    color: #6d7fa3;
}

/* ===================== 常见问题 ===================== */
.nzmww {
    max-width: 860px;
    margin: 0 auto 14px;
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(18, 38, 77, 0.05);
}

.wgjdw {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 18px 22px;
    font-size: 15.5px;
    font-weight: 700;
    color: #12264d;
    text-align: left;
}

.kgbrh {
    flex-shrink: 0;
    color: #1a7ef0;
    font-size: 19px;
    transition: transform 0.25s;
}

.nzmww.open .kgbrh {
    transform: rotate(45deg);
}

.jjwnn {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.nzmww.open .jjwnn {
    max-height: 200px;
}

.jjwnn p {
    padding: 0 22px 18px;
    font-size: 14px;
    color: #6d7fa3;
}

/* ===================== 产品资讯 ===================== */
.apmnj {
    margin-top: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.hwkcd {
    display: flex;
    gap: 16px;
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 8px 22px rgba(18, 38, 77, 0.06);
    transition: transform 0.25s;
}

.hwkcd:hover {
    transform: translateY(-3px);
}

.xcdwpg {
    flex-shrink: 0;
    width: 62px;
    height: 70px;
    border-radius: 12px;
    background: linear-gradient(160deg, #12264d, #2a4a86);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
}

.ccaka {
    font-size: 23px;
    font-weight: 900;
    line-height: 1.1;
}

.bmseg {
    font-size: 11px;
    opacity: 0.8;
}

.qqpqy {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    background: #eaf3fe;
    color: #1a7ef0;
    font-size: 12px;
    font-weight: 700;
}

.pgywr {
    margin-top: 8px;
    font-size: 16px;
    font-weight: 800;
    color: #12264d;
}

.czwmep {
    margin-top: 6px;
    font-size: 13.5px;
    color: #6d7fa3;
}

/* ===================== 用户评价 ===================== */
.dvyxzz {
    margin-top: 40px;
    columns: 3;
    column-gap: 20px;
}

.pvrhq {
    position: relative;
    break-inside: avoid;
    margin-bottom: 20px;
    background: #ffffff;
    border: 1px solid #e6eefb;
    border-radius: 16px;
    padding: 20px 20px 16px;
    box-shadow: 0 8px 22px rgba(18, 38, 77, 0.06);
}

.zhwtw {
    position: absolute;
    right: 18px;
    top: 14px;
    font-size: 34px;
    color: #e3eeff;
}

.gtagp {
    display: flex;
    align-items: center;
    gap: 10px;
}

.axxdjp {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    color: #ffffff;
    font-size: 14px;
    font-weight: 800;
}

.pvrhq:nth-child(even) .axxdjp {
    background: linear-gradient(135deg, #ff9a4d, #ff7a2f);
}

.bwjrz {
    font-size: 14.5px;
    font-weight: 800;
    color: #12264d;
}

.nwddt {
    margin-left: auto;
    display: inline-flex;
    gap: 2px;
    color: #ff9a3d;
    font-size: 13px;
}

.emyvp {
    margin-top: 12px;
    font-size: 14px;
    color: #45577c;
}

.bcqha {
    margin-top: 10px;
    font-size: 12.5px;
    color: #9aa9c6;
}

/* ===================== 页脚 ===================== */
.hqfvk {
    margin-top: 84px;
    background: #0f2b54;
    color: #ffffff;
}

.ntcrfe {
    max-width: 1200px;
    margin: 0 auto;
    padding: 52px 20px 36px;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
}

.kcdgv {
    margin-top: 14px;
    font-size: 13.8px;
    color: rgba(255, 255, 255, 0.72);
    max-width: 320px;
}

.hqfvk .gdzmv {
    color: #ffffff;
}

.bdhkqw {
    font-size: 15px;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.tgsvnm {
    display: flex;
    flex-direction: column;
}

.lpzvcs {
    font-size: 13.8px;
    color: rgba(255, 255, 255, 0.72);
    padding: 5px 0;
    transition: color 0.2s;
}

.lpzvcs:hover {
    color: #ffffff;
}

.xzhpvd {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 24px;
    border-radius: 999px;
    background: #ff7a2f;
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 8px 18px rgba(255, 122, 47, 0.34);
    transition: transform 0.2s;
}

.xzhpvd:hover {
    transform: translateY(-2px);
}

.kqtsbn {
    margin-top: 12px;
    font-size: 12.5px;
    color: rgba(255, 255, 255, 0.6);
}

.vjdwmz {
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    text-align: center;
    padding: 18px 20px 22px;
    font-size: 12.8px;
    color: rgba(255, 255, 255, 0.6);
}

/* ===================== 返回顶部 ===================== */
.fhzqtp {
    position: fixed;
    right: 22px;
    bottom: 26px;
    z-index: 90;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a7ef0, #3d9bff);
    color: #ffffff;
    font-size: 20px;
    box-shadow: 0 10px 22px rgba(26, 126, 240, 0.36);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.3s;
}

.fhzqtp.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ===================== 移动端 ===================== */
@media (max-width: 767px) {
    section {
        padding: 56px 16px 0;
    }

    .tspvrm {
        display: none;
    }

    .trvhv {
        display: inline-flex;
    }

    .xncfc {
        padding: 90px 20px;
    }
    .spqgh {
        display: none;
    }
    .kyqhr {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .pkzkf {
        display: none;
    }

    .dwyvxw {
        font-size: 40px;
    }

    .dqgxk {
        font-size: 14.5px;
    }

    .kzvgm {
        margin-top: 24px;
    }

    .vtbycf {
        width: 100%;
        justify-content: center;
    }

    .gvwcgv {
        font-size: 24px;
    }

    .whzbs {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        margin-top: 30px;
        padding-bottom: 8px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
    }

    .eafjm {
        flex: 0 0 72%;
        scroll-snap-align: start;
    }

    .rzbbf {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .ybgbd {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .ejyzv::before {
        left: 20px;
        transform: none;
    }

    .waxpd,
    .waxpd:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding: 0 0 26px 56px;
    }

    .waxpd:last-child {
        padding-bottom: 0;
    }

    .wpjyj,
    .waxpd:nth-child(even) .wpjyj {
        left: -1px;
        right: auto;
        width: 42px;
        height: 42px;
        font-size: 18px;
        border-width: 4px;
    }

    .fbmgm,
    .waxpd:nth-child(odd) .fbmgm {
        text-align: left;
    }

    .apmnj {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .dvyxzz {
        columns: 1;
    }

    .ntcrfe {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 40px 18px 28px;
    }

    .fhzqtp {
        right: 16px;
        bottom: 20px;
    }
}