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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: #14301d;
    background-color: #f2faf4;
    line-height: 1.7;
}

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

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

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

/* ---------- 头部 ---------- */
.hdkb {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.94);
    box-shadow: 0 2px 16px rgba(20, 122, 62, 0.08);
}

.hdin {
    display: flex;
    align-items: center;
    height: 72px;
}

.lgkb {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.lgkb img {
    width: 42px;
    height: 42px;
    border-radius: 10px;
}

.lgkb span {
    margin-left: 10px;
    font-size: 22px;
    font-weight: 800;
    color: #14301d;
    letter-spacing: 1px;
}

.nvkb {
    display: flex;
    align-items: center;
    margin-left: 36px;
    flex: 1;
}

.nvkb a {
    font-size: 15px;
    color: #3d5c46;
    padding: 8px 12px;
    border-radius: 8px;
    transition: color 0.2s, background-color 0.2s;
}

.nvkb a:hover {
    color: #149a52;
    background-color: #e4f5ea;
}

.ctkb {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    background: linear-gradient(120deg, #149a52 0%, #6fbf2a 100%);
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: 10px;
    box-shadow: 0 8px 18px rgba(20, 154, 82, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.ctkb i {
    margin-right: 6px;
    font-size: 17px;
}

.ctkb:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(20, 154, 82, 0.4);
}

.tgkb {
    display: none;
    border: none;
    background: none;
    font-size: 26px;
    color: #149a52;
    cursor: pointer;
}

/* ---------- Hero ---------- */
.hekb {
    position: relative;
    overflow: hidden;
    padding: 88px 0 100px;
    background: linear-gradient(160deg, #e4f6ea 0%, #f2faf4 55%, #eefbe4 100%);
}

.hekb::before {
    content: "";
    position: absolute;
    right: -140px;
    top: -140px;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(26, 162, 82, 0.14) 0%, rgba(26, 162, 82, 0) 68%);
}

.hekb::after {
    content: "";
    position: absolute;
    left: -120px;
    bottom: -160px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(111, 191, 42, 0.16) 0%, rgba(111, 191, 42, 0) 68%);
}

.hein {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 56px;
}

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

.hebd {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 600;
    color: #149a52;
    background-color: rgba(26, 162, 82, 0.1);
    border: 1px solid rgba(26, 162, 82, 0.22);
    padding: 6px 16px;
    border-radius: 999px;
}

.hebd i {
    margin-right: 6px;
    font-size: 15px;
}

.heh1 {
    margin-top: 18px;
    font-size: 64px;
    font-weight: 900;
    letter-spacing: 4px;
    line-height: 1.15;
    color: #14301d;
}

.heh3 {
    background: linear-gradient(120deg, #149a52 0%, #6fbf2a 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hetx {
    margin-top: 18px;
    font-size: 16px;
    color: #4a6852;
    max-width: 560px;
}

.hebt {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 34px;
    background: linear-gradient(120deg, #149a52 0%, #6fbf2a 100%);
    color: #ffffff;
    font-size: 20px;
    font-weight: 800;
    padding: 17px 54px;
    border-radius: 12px;
    box-shadow: 0 14px 30px rgba(20, 154, 82, 0.36);
    transition: transform 0.2s, box-shadow 0.2s;
}

.hebt i {
    margin-right: 10px;
    font-size: 22px;
}

.hebt:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 38px rgba(20, 154, 82, 0.46);
}

.heft {
    margin-top: 28px;
}

.heft span {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    color: #39543f;
    margin-right: 26px;
}

.heft i {
    margin-right: 6px;
    font-size: 17px;
    color: #149a52;
}

.hefr {
    flex-shrink: 0;
}

.hevs {
    position: relative;
    width: 460px;
    height: 520px;
}

.hvcir {
    position: absolute;
    right: 10px;
    top: 30px;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: linear-gradient(150deg, #149a52 0%, #6fbf2a 100%);
    opacity: 0.14;
}

.hvcir::after {
    content: "";
    position: absolute;
    left: 40px;
    top: 40px;
    right: 40px;
    bottom: 40px;
    border-radius: 50%;
    border: 2px dashed rgba(26, 162, 82, 0.4);
}

.hvmain {
    position: absolute;
    right: 40px;
    top: 10px;
    width: 240px;
    background-color: #ffffff;
    border-radius: 18px;
    padding: 10px;
    box-shadow: 0 26px 56px rgba(20, 122, 62, 0.22);
}

.hvmain img {
    border-radius: 10px;
}

.hvsub {
    position: absolute;
    left: 6px;
    bottom: 46px;
    width: 168px;
    background-color: #ffffff;
    border-radius: 14px;
    padding: 8px;
    box-shadow: 0 18px 40px rgba(20, 122, 62, 0.18);
}

.hvsub img {
    border-radius: 8px;
}

.hvbd {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background-color: #ffffff;
    box-shadow: 0 12px 26px rgba(20, 122, 62, 0.2);
    font-size: 22px;
}

.hb1 {
    left: 30px;
    top: 66px;
    color: #ff5b7f;
}

.hb2 {
    right: 6px;
    top: 300px;
    color: #f5a623;
}

.hb3 {
    left: 190px;
    bottom: 0;
    color: #ff7a45;
}

/* ---------- 通用区块 ---------- */
.sekb {
    padding: 84px 0;
    scroll-margin-top: 80px;
}

.sebg {
    background-color: #e8f5ec;
}

.ttkb {
    text-align: center;
    margin-bottom: 52px;
}

.ttkb p {
    display: inline-block;
    font-size: 32px;
    font-weight: 900;
    color: #14301d;
    letter-spacing: 2px;
    position: relative;
    padding-bottom: 16px;
}

.ttkb p::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 46px;
    height: 5px;
    margin-left: -23px;
    border-radius: 3px;
    background: linear-gradient(120deg, #149a52 0%, #6fbf2a 100%);
}

/* ---------- 产品展示 ---------- */
.pdkb {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.pdcd {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 16px 16px 20px;
    box-shadow: 0 8px 24px rgba(20, 122, 62, 0.08);
    transition: transform 0.25s, box-shadow 0.25s;
}

.pdcd:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 36px rgba(20, 122, 62, 0.16);
}

.pdim {
    background-color: #ecf6ef;
    border-radius: 10px;
    overflow: hidden;
}

.pdim img {
    width: 100%;
    height: 432px;
    object-fit: cover;
    object-position: top;
}

.pdcd p {
    margin-top: 14px;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    color: #14301d;
}

/* ---------- 优势亮点 ---------- */
.avkb {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.avcd {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 34px 28px;
    box-shadow: 0 8px 24px rgba(20, 122, 62, 0.08);
    transition: transform 0.25s, box-shadow 0.25s;
}

.avcd:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 36px rgba(20, 122, 62, 0.16);
}

.avic {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 58px;
    height: 58px;
    border-radius: 16px;
    background: linear-gradient(135deg, #149a52 0%, #6fbf2a 100%);
    color: #ffffff;
    font-size: 26px;
    box-shadow: 0 10px 20px rgba(20, 154, 82, 0.3);
}

.avtt {
    margin-top: 18px;
    font-size: 19px;
    font-weight: 800;
    color: #14301d;
}

.avtx {
    margin-top: 8px;
    font-size: 14px;
    color: #5f7c68;
}

/* ---------- 下载中心 ---------- */
.dnkb {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.dncd {
    background-color: #ffffff;
    border: 1px solid #dcefe1;
    border-radius: 16px;
    padding: 30px 26px;
    text-align: center;
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.dncd:hover {
    transform: translateY(-6px);
    border-color: #b3e2c0;
    box-shadow: 0 18px 36px rgba(20, 122, 62, 0.14);
}

.dnlg {
    width: 60px;
    height: 60px;
    border-radius: 14px;
    margin: 0 auto;
    box-shadow: 0 8px 18px rgba(20, 122, 62, 0.16);
}

.dntt {
    margin-top: 16px;
    font-size: 18px;
    font-weight: 800;
    color: #14301d;
}

.dntx {
    margin-top: 6px;
    font-size: 14px;
    color: #5f7c68;
    min-height: 44px;
}

.dnbt {
    display: inline-flex;
    align-items: center;
    margin-top: 16px;
    font-size: 15px;
    font-weight: 700;
    color: #149a52;
    background-color: #e4f5ea;
    padding: 10px 26px;
    border-radius: 10px;
    transition: background-color 0.2s, color 0.2s;
}

.dnbt i {
    margin-left: 6px;
    transition: transform 0.2s;
}

.dnbt:hover {
    background: linear-gradient(120deg, #149a52 0%, #6fbf2a 100%);
    color: #ffffff;
}

.dnbt:hover i {
    transform: translateX(4px);
}

/* ---------- 使用流程 ---------- */
.flkb {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.flcd {
    position: relative;
    background-color: #ffffff;
    border-radius: 16px;
    padding: 36px 24px 30px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(20, 122, 62, 0.08);
}

.flcd:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 58px;
    right: -24px;
    width: 24px;
    height: 2px;
    background-image: linear-gradient(90deg, #149a52 55%, transparent 45%);
    background-size: 8px 2px;
}

.flno {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    margin: 0 auto;
    border-radius: 50%;
    background: linear-gradient(135deg, #149a52 0%, #6fbf2a 100%);
    color: #ffffff;
    font-size: 20px;
    font-weight: 800;
    box-shadow: 0 10px 20px rgba(20, 154, 82, 0.3);
}

.fltt {
    margin-top: 16px;
    font-size: 18px;
    font-weight: 800;
    color: #14301d;
}

.fltx {
    margin-top: 8px;
    font-size: 14px;
    color: #5f7c68;
}

/* ---------- 常见问题 ---------- */
.qakb {
    max-width: 860px;
    margin: 0 auto;
}

.qait {
    background-color: #ffffff;
    border: 1px solid #dcefe1;
    border-radius: 14px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.qait.on {
    border-color: #b3e2c0;
    box-shadow: 0 12px 28px rgba(20, 122, 62, 0.12);
}

.qaqs {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 700;
    color: #14301d;
    cursor: pointer;
}

.qaqs i {
    font-size: 20px;
    color: #149a52;
    transition: transform 0.25s;
}

.qait.on .qaqs i {
    transform: rotate(45deg);
}

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

.qaan p {
    padding: 0 24px 20px;
    font-size: 14px;
    color: #5f7c68;
}

/* ---------- 产品资讯 ---------- */
.nwkb {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.nwcd {
    display: flex;
    background-color: #ffffff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 8px 24px rgba(20, 122, 62, 0.08);
    transition: transform 0.25s, box-shadow 0.25s;
}

.nwcd:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(20, 122, 62, 0.14);
}

.nwdt {
    flex-shrink: 0;
    width: 74px;
    height: 74px;
    border-radius: 14px;
    background: linear-gradient(135deg, #149a52 0%, #6fbf2a 100%);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 20px rgba(20, 154, 82, 0.28);
}

.nwdd {
    font-size: 20px;
    font-weight: 800;
    line-height: 1.2;
}

.nwyy {
    font-size: 12px;
    opacity: 0.85;
}

.nwct {
    margin-left: 18px;
    min-width: 0;
}

.nwtt {
    font-size: 17px;
    font-weight: 800;
    color: #14301d;
    line-height: 1.5;
}

.nwtx {
    margin-top: 6px;
    font-size: 13px;
    color: #5f7c68;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nwtm {
    margin-top: 10px;
    font-size: 12px;
    color: #8aa894;
}

.nwtm i {
    margin-right: 4px;
}

/* ---------- 用户评价 ---------- */
.ugkb {
    columns: 3;
    column-gap: 24px;
}

.ugcd {
    break-inside: avoid;
    background-color: #ffffff;
    border-radius: 16px;
    padding: 26px 24px;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(20, 122, 62, 0.08);
    transition: transform 0.25s, box-shadow 0.25s;
}

.ugcd:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(20, 122, 62, 0.14);
}

.ugst {
    color: #f5a623;
    font-size: 15px;
}

.ugtx {
    margin-top: 12px;
    font-size: 14px;
    color: #39543f;
}

.ugft {
    display: flex;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid #e4f1e8;
}

.ugav {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e4f5ea;
    color: #149a52;
    font-size: 20px;
    flex-shrink: 0;
}

.ugft > div {
    margin-left: 12px;
}

.ugnm {
    font-size: 14px;
    font-weight: 700;
    color: #14301d;
    line-height: 1.4;
}

.ugtm {
    font-size: 12px;
    color: #8aa894;
    line-height: 1.4;
}

/* ---------- 页脚 ---------- */
.fokb {
    background-color: #0f2b1a;
    padding: 46px 0 30px;
}

.foin {
    display: flex;
    align-items: center;
}

.fokb .lgkb span {
    color: #ffffff;
}

.fokb .nvkb a {
    color: #9dbfa8;
}

.fokb .nvkb a:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.08);
}

.focr {
    margin-top: 30px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 13px;
    color: #7d9a86;
}

/* ---------- 移动端 ---------- */
@media (max-width: 767px) {
    .hdin {
        height: 60px;
    }

    .lgkb img {
        width: 36px;
        height: 36px;
    }

    .lgkb span {
        font-size: 19px;
    }

    .nvkb {
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        top: 60px;
        background-color: #ffffff;
        flex-direction: column;
        align-items: stretch;
        padding: 10px 16px 16px;
        margin-left: 0;
        box-shadow: 0 14px 24px rgba(20, 122, 62, 0.12);
    }

    .nvkb a {
        padding: 12px 10px;
        font-size: 15px;
    }

    .hdkb.opnv .nvkb {
        display: flex;
    }

    .ctkb {
        display: none;
    }

    .tgkb {
        display: block;
        margin-left: auto;
    }

    .hekb {
        padding: 54px 0 64px;
    }

    .hein {
        gap: 0;
    }

    .hefr {
        display: none;
    }

    .heh1 {
        font-size: 42px;
        text-align: center;
    }

    .hebd {
        display: flex;
        width: fit-content;
        margin: 0 auto;
    }

    .hetx {
        font-size: 14px;
        text-align: center;
    }

    .hebt {
        display: flex;
        width: 100%;
        font-size: 18px;
        padding: 15px 20px;
    }

    .heft {
        text-align: center;
    }

    .heft span {
        margin: 0 10px;
        font-size: 13px;
    }

    .sekb {
        padding: 56px 0;
        scroll-margin-top: 66px;
    }

    .ttkb {
        margin-bottom: 34px;
    }

    .ttkb p {
        font-size: 24px;
    }

    .pdkb {
        display: flex;
        overflow-x: auto;
        gap: 14px;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }

    .pdcd {
        flex: 0 0 72%;
        padding: 12px 12px 16px;
    }

    .pdim img {
        height: 443px;
    }

    .avkb {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .avcd {
        padding: 24px 20px;
    }

    .dnkb {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .dntx {
        min-height: 0;
    }

    .flkb {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .flcd:not(:last-child)::after {
        display: none;
    }

    .qaqs {
        padding: 16px 18px;
        font-size: 15px;
    }

    .nwkb {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .ugkb {
        columns: 1;
    }

    .foin {
        flex-direction: column;
        gap: 18px;
    }

    .fokb .nvkb {
        position: static;
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        background-color: transparent;
        box-shadow: none;
        padding: 0;
    }

    .fokb .nvkb a {
        padding: 6px 10px;
        font-size: 13px;
    }
}