#app {
    width: 100%;
    height: calc(100vh - 5em);
    font-size: calc(1rem * var(--baseFontSizeBL));
    --baseFontSizeBL: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
    color: var(--el-text-color-primary);
    overflow: hidden;
    overflow-y: auto;
    background: #ffffff;
}

.main {
    font-size: 1em;
    display: flex;
    box-sizing: border-box;
    width: 100vw;
    min-height: calc(100vh - 5em);
    height: calc(100vh - 5em);
    background: #ffffff;
    flex-direction: row;
    align-items: center;
    padding: 0 10vw;
    justify-content: center;
}

.main img {
    width: 35vw;
}

.main_left {
    display: flex;
    flex-direction: column;
    width: 35vw;
    height: 49em;
}

.main h1 {
    font-size: 6.5em;
    margin: 0;
}

.main p {
    font-size: 3em;
    margin: 2em 0;
    color: var(--el-text-color-regular);
    line-height: 1.5;
}

.btns {
    font-size: 2em;
    display: flex;
    margin-top: 1em;
    color: var(--primaryColor);
    align-items: center;
}

.download {
    color: #fff;
    background: var(--primaryColor);
    padding: 0.5em 1.5em;
    border-radius: 2em;
    margin-right: 1em;
    cursor: pointer;
}

.tryOnline {
    cursor: pointer;
    display: flex;
    align-items: center;
}

.tryOnline svg {
    width: 1em;
    height: 1em;
    margin-top: 0.25em;
}

.tryOnline svg path {
    fill: var(--el-color-primary);
}

.tryOnline:hover {
    text-decoration: underline;
}

.mian_item {
    font-size: 1em;
    display: flex;
    box-sizing: border-box;
    width: 100vw;
    min-height: calc(100vh - 5em);
    height: calc(100vh - 5em);
    flex-direction: row;
    align-items: center;
    margin: 5em 0;
}

.mian_item_left {
    width: 50vw;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    box-sizing: border-box;
    padding: 0 8vw;
}

.mian_item_left>h2 {
    font-size: 5em;
    margin-bottom: 0.35em;
}

.mian_item_left p {
    font-size: 2.5em;
    line-height: 1.8;
    margin: 0;
}

.mian_item_right {
    display: flex;
    align-items: center;
    height: 100%;
    width: 70vw;
    justify-content: center;
}

.mian_item_right iframe {
    border-radius: 2em;
    box-shadow: 0 0 40px #cbcbcb;
}

.main1 {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-sizing: border-box;
    padding: 5em 0;
}

.main1 p {
    font-size: 2.5em;
}

.main1>h2 {
    font-size: 5em;
    margin-bottom: 0.4em;
}

.tool_items {
    margin-top: 5em;
    display: flex;
    justify-content: space-around;
}

.tool_item {
    font-size: 1.8em;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 6em;
}

.tool_item_title {
    font-size: 1.3em;
    margin-bottom: 1em;
}

.tools {
    display: flex;
    flex-direction: column;
    white-space: nowrap;
    line-height: 2;
}

.tool {
    background: var(--el-color-primary-light-7);
    border-radius: 0.5em;
    padding: 0.2em 1em;
    margin: 0.5em;
}

/* .tool:hover {
    text-decoration: underline;
    color: var(--primaryColor);
} */

.main2 {
    background: linear-gradient(90deg, #284ff0, #f861bf);
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 85vw;
    padding: 10em 7em;
    box-sizing: border-box;
    margin: 0 0 7em;
    border-radius: 3em;
}

.main2 .btns {
    color: #fff;
}

.main2 .download {
    background-color: #fff;
    color: var(--el-text-color-primary);
}

.main2 h2 {
    font-size: 5em;
    margin: 0.5em 0;
    text-align: center;
}

.main2 p {
    font-size: 2.75em;
    text-align: center;
}

.page_footer_item {
    margin-right: 5em !important;
}

@media screen and (max-width: 900px) {
    #app {
        font-size: 12px !important;
    }

    .main {
        display: flex;
        flex-direction: column;
        padding: 0 5vw;
        justify-content: flex-start;
        margin-top: 5em;
        height: fit-content;
        min-height: unset;
        margin-bottom: 10em;
        text-align: center;
    }

    .main_left {
        width: 100%;
        height: fit-content;
        gap: 3em;
        margin-bottom: 4em;
    }

    .main h1 {
        font-size: 2.8em;
        text-align: center;
    }

    .main p {
        font-size: 1.5em;
        text-align: center;
        margin: 0;
    }

    .btns {
        width: 100%;
        margin: 0;
        font-size: 1.5em !important;
        justify-content: center;
    }

    .mian_item {
        margin: 0 0 10em;
        min-height: unset;
        gap: 3em;
        display: grid;
        grid-template-areas: "a" "b";
        box-sizing: border-box;
        padding: 0 5vw;
    }

    .mian_item_left {
        width: 100%;
        gap: 1em;
        grid-area: a;
        padding: 0;
    }

    .mian_item_left>h2 {
        font-size: 2em;
        text-align: center;
        width: 100%;
    }

    .mian_item_left p {
        font-size: 1.5em;
        text-align: center;
    }

    .mian_item_right {
        width: 100%;
        height: fit-content;
        grid-area: b;
    }

    .mian_item_right iframe {
        width: 100% !important;
        height: calc(90vw / 2.07) !important;
    }

    .main1 {
        box-sizing: border-box;
        padding: 0 5vw;
        margin-bottom: 10em;
    }

    .main1>h2 {
        font-size: 2em;
        width: 100%;
        text-align: center;
    }

    .main1 p {
        font-size: 1.5em;
        width: 100%;
        text-align: center;
    }

    .tool_items {
        box-sizing: border-box;
        width: 100%;
        display: block;
        margin-top: 2em;
    }

    .tool_item {
        width: 100%;
        font-size: 1em;
        margin: 2em 0 0;
    }

    .tools {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, calc(50% - 0.5em));
        row-gap: 1em;
        justify-content: space-between;
    }

    .tool {
        margin: 0;
        width: 100%;
        box-sizing: border-box;
    }

    .main2 {
        width: 90vw;
        margin: 0 auto 10em;
        padding: 2em;
        border-radius: 1em;
    }

    .main2 h2 {
        font-size: 2em;
    }
}