.panel {
    position: relative;
    background: #fff;

    & + & {
        margin-top: 16px;
    }

    & + &--small {
        margin-top: 8px;
    }

    & > &__header {
        padding-top: @panel-padding;
        padding-bottom: 4px;
        border-bottom: 1px solid #eee;
        margin-left: @panel-padding;
        margin-right: @panel-padding;
        //margin-bottom: -4px;
        line-height: 24px;
        .clearfix;
    }

    &__title {
        font-weight: bold;
        font-size: 14px;
        display: inline-block;
        color: #333;
    }

    &__fn {
        float: right;
        &&--inline {
            float: none;
            display: inline-block;
            padding-left: 16px;
        }
    }

    &__close {
        position: absolute;
        right: -8px;
        top: -8px;

        i {
            font-size: 22px;
            color: #666;
            cursor: pointer;

            &:hover {
                color: shade(#666, 15%);
            }
        }
    }

    &__index {
        position: absolute;
        top: -1px;
        left: -1px;
        width: 24px;
        height: 24px;
        overflow: hidden;

        &:before {
            position: absolute;
            top: -24px;
            left: -24px;
            display: block;
            width: 48px;
            height: 48px;
            background: #ccc;
            border-radius: 50%;
            content: ' ';
        }
    }

    &__index__actived {
        position: absolute;
        top: -1px;
        left: -1px;
        width: 24px;
        height: 24px;
        overflow: hidden;

        &:before {
            position: absolute;
            top: -24px;
            left: -24px;
            display: block;
            width: 48px;
            height: 48px;
            background: @primary-color;
            border-radius: 50%;
            content: ' ';
        }
    }

    &__number {
        position: absolute;
        width: 20px;
        line-height: 20px;
        text-align: center;
        color: #fff;
    }

    & > &__body {
        padding: @panel-padding;
        transition: all .3s ease;
    }

    &--shadow {
        box-shadow: 0 0 6px rgba(0, 0, 0, .1);
        border: 1px solid #ddd;
    }

    &--transparent {
        background: transparent;
    }

    &--gray {
        background: @background-color-base;
        border: 1px solid #eee;
        border-radius: 3px;
    }

    &--actived {
        border:1px solid tint(@primary-color, 60%);
        box-shadow:0 0 6px rgba(230, 79, 66, .4);
    }

    &--split {
        border: 1px dashed #ddd;
        background: #f9f9f9;
    }

    &--no-margin {
        margin-bottom: 0;
    }

    &--hide-body {
        .panel {
            &__header {
                border-bottom: none;
            }
        }
    }

    &--mini-title {
        & > .panel {
            &__header {

                height: 12px;
                .panel__title {
                    background: #fff;
                    padding-right: 8px;
                }
            }
        }
    }

    &--line {
        margin-top: 16px;
        padding-top: 8px;
        border-top: 1px solid #ddd;
        border-bottom: 1px solid #ddd;

        & > .panel {
            &__header {
                border-bottom: none;
                margin-bottom: -16px;
            }
        }
    }

    &--gray&--no-header-bd &__header {
        padding-top: 12px;
    }

    & &--gray&--no-header-bd > &__header {
        padding-top: 10px;
    }

    &--small {
        & > .panel__body {
            padding: @panel-padding-small
        }

        & > .panel__header {
            padding-top: @panel-padding-small;
            margin-left: @panel-padding-small;
            margin-right: @panel-padding-small;

            .panel__title {
                font-size: 12px;
            }
        }
    }

    &--big {
        & > .panel__header {
            padding-top: @panel-padding-big;
            padding-bottom: @panel-padding-big / 2;
            margin-left: @panel-padding-big;
            margin-right: @panel-padding-big;

            .panel__title {
                font-size: 18px;
            }
        }
        & > .panel__body {
            padding: @panel-padding-big
        }
    }

    &--large {
        & > .panel__header {
            padding-top: @panel-padding-large;
            padding-bottom: @panel-padding-large / 2;
            margin-left: @panel-padding-large;
            margin-right: @panel-padding-large;

            .panel__title {
                font-size: 18px;
            }
        }
        & > .panel__body {
            padding: @panel-padding-large;
            padding-top: @panel-padding-large/1.5;
        }
    }

    &--no-header-bd {
        & > .panel {
            &__header {
                margin-bottom: -8px;
                border: transparent;
            }
        }
    }

    &--no-header-bd&--small {
        & > .panel {
            &__header {
                margin-bottom: -4px;
            }
        }
    }

    &--no-padding {
        & > .panel {
            &__header {
                margin-left: 0;
                margin-right: 0;
            }
            &__body {
                padding-left: 0;
                padding-right: 0;
            }
        }
    }

    &--no-header&--large > &__body {
        padding-top: @panel-padding-large;
    }

    &--gray-header {
        background: #f5f5f5;

        .panel {
            &__header {
                padding-top: 10px;
                padding-bottom: 10px;
            }
            &__body {
                background: #fff;
            }
        }
    }

    &--gray-header&--small &__header {
        padding-top: 4px;
        padding-bottom: 4px;
    }

    &--gray-header&--large &__header {
        padding-top: 16px;
        padding-bottom: 16px;
    }

}