.help-page {
    .center-content {
        width: 990px;
    }

    .home-icon {
        font-size: 16px;
    }

    .red {
        color: #ce021b;
        margin: 0 5px;
    }

    .foot-pager {
        border-top: none;
        width: 740px;
        margin: 0 auto;
        padding-bottom: 10px;
    }

    .help-navigation {
        width: 163px;
        background: #fff;
        margin-bottom: 20px;

        .title {
            width: 100%;
            height: 54px;
            background: #eaeaea;
            padding-left: 20px;
            line-height: 54px;
            font-size: 18px;
            box-sizing: border-box;
        }

        .nav {
            background: #fbfbfb;

            li {
                cursor: pointer;
                padding-left: 20px;
                width: 100%;
                box-sizing: border-box;
            }

            .icon {
                cursor: pointer;
                margin-right: 10px;
                height: 13px;
                width: 13px;
                display: inline-block;
                position: relative;
                top: 1px;
            }

            .plus {
                background-image: resolve("help/plus.png");
            }

            .minus {
                background-image: resolve("help/minus.png");
            }

            .mult {
                margin-right: 26px;
                height: 14px;
                width: 14px;
            }

            li.selected > a {
                color: #ce021b;
            }
        }

        .big-category {
            height: 59px;
            line-height: 59px;
            font-size: 16px;
            border-top: 1px solid #e8e8e8;
        }

        .smll-category {
            display: none;
            height: 16px;
            line-height: 16px;
            margin-bottom: 14px;
            font-size: 14px;

            a {
                color: #6b6b6b;
            }
        }
    }

    .help-main {
        width: 785px;
        margin: 0 0 60px 40px;
        border: 1px solid #e0e0e0;
        padding-bottom: 20px;
    }

    .problem-box {
        position: fixed;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        line-height: calc(100vh);
        text-align: center;
        display: none;

        .mark {
            background: #000;
            opacity: 0.5;
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            bottom: 0;
            z-index: 1;
            cursor: pointer;
        }

        .problem-area {
            min-width: 345px;
            max-width: 610px;
            max-height: 380px;
            position: relative;
            z-index: 2;
            vertical-align: middle;
            display: inline-block;
            line-height: 24px;
            text-align: left;
            border: 5px solid rgba(0, 0, 0, 0.4);
        }

        .problem-cont {
            max-width: 610px;
            max-height: 380px;
            background: #fff;
        }

        .cont-area {
            margin: 0 auto;
            padding: 53px 18px 53px 45px;
        }

        .a-area,
        .q-area {
            position: relative;
            font-size: 14px;
            color: #444;
            min-height: 20px;
            margin-top: 15px;
            padding-left: 30px;

            &:before {
                content: "";
                width: 18px;
                height: 18px;
                display: block;
                position: absolute;
                left: 0;
                top: 2px;
            }
        }

        .a-area {
            margin-top: 10px;
            font-size: 18px;
            color: #000;
        }

        .q-area {
            line-height: 24px;
            max-height: 210px;
            overflow-y: auto;
            overflow-x: hidden;

            img {
                max-width: 100%;
            }
        }

        .a-area:before {
            background: url("/help/q.png") no-repeat;
        }

        .q-area:before {
            background: url("/help/a.png") no-repeat;
        }

        .iconfont {
            position: absolute;
            right: 28px;
            top: 21px;
            cursor: pointer;
            font-size: 30px;
            z-index: 4;
        }
    }

    ::-webkit-scrollbar {
        width: 16px;
        height: 16px;
    }

    ::-webkit-scrollbar-track,
    ::-webkit-scrollbar-thumb {
        border-radius: 999px;
        border: 5px solid transparent;
    }

    ::-webkit-scrollbar-track {
        box-shadow: 0 0 6px rgba(0, 0, 0, 0) inset;
    }

    ::-webkit-scrollbar-thumb {
        min-height: 20px;
        background-clip: content-box;
        box-shadow: 0 0 0 6px rgba(0, 0, 0, 0.3) inset;
    }

    ::-webkit-scrollbar-corner {
        background: transparent;
    }
}