@media (min-width: 666px) {
    body nav {
        width: 100%;
        position: absolute;
        background: #222;
        margin: 0px;
        max-width: 100%;
        z-index: 2;
    }
    body nav ol {
        width: 100%;
        display: flex;
        justify-content: space-around;
        padding: 0px;
        margin: 0px;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    body nav ol li {
        display: inline-block;
        padding: 30px;
        flex-grow: 1;
        text-align: center;
        position: relative;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    body nav ol li:nth-of-type(4) ol:after {
        content: "\f06d";
        font-family: FontAwesome;
    }
    body nav ol li:hover ol:before {
        content: '';
        position: absolute;
        width: 20px;
        height: 20px;
        display: block;
        bottom: -30px;
        left: -15px;
        transform: rotate(45deg) scale(0.5);
        border: 3px solid orange;
        border-color: orange transparent transparent orange;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, orange 45%, orange 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        animation: clipin 0.4s ease-in 1 forwards;
        animation-delay: 0.2s;
        -webkit-clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
        clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
    }
    body nav ol li:hover li {
        position: relative;
    }
    body nav ol li:hover li:first-of-type:before {
        display: none;
    }
    body nav ol li:hover li:before {
        content: '';
        position: absolute;
        width: 20px;
        height: 20px;
        display: block;
        right: -30px;
        top: -15px;
        left: auto;
        transform: rotate(-45deg) scale(0.5);
        border: 3px solid red;
        border-color: red transparent transparent red;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, red 45%, red 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        animation: clipin 0.4s ease-in 1 forwards;
        -webkit-clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
        clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
    }
    @keyframes clipin {
        0% {
            -webkit-clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
            clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
        }
        50% {
            -webkit-clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
            clip-path: polygon(35% 35%, 35% 0, 35% 0, 35% 35%, 0 35%, 0 35%);
        }
        75% {
            -webkit-clip-path: polygon(35% 35%, 35% 0, 100% 0, 100% 100%, 0 100%, 0 35%);
            clip-path: polygon(35% 35%, 35% 0, 100% 0, 100% 100%, 0 100%, 0 35%);
        }
        100% {
            -webkit-clip-path: polygon(100% 100%, 100% 0, 100% 0, 100% 100%, 0 100%, 0 100%);
            clip-path: polygon(100% 100%, 100% 0, 100% 0, 100% 100%, 0 100%, 0 100%);
        }
    }
    body nav ol li ol:after {
        content: "\f25b";
        font-family: FontAwesome;
        vertical-align: center;
        font-size: 150px;
        color: #ff8000;
        position: absolute;
        padding-top: 5px;
        /** padding-top: 40px; **/
        height: calc(100%);
        /** height: calc(100% - 40px); �����Ӳ˵������С���� **/
        width: 100%;
        left: -100%;
        top: 0;
        background: orange;
        transform: rotate(-90deg);
        transform-origin: 0% 0%;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    body nav ol li:nth-of-type(1):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(1):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(1):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(1):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #ff2b00;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(2):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(2):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(2):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(2):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #ff5500;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(3):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(3):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(3):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(3):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #ff8000;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(4):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(4):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(4):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(4):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #ffaa00;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(5):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(5):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(5):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(5):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #ffd500;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(6):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(6):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(6):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(6):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: yellow;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(7):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(7):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(7):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(7):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #d5ff00;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(8):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(8):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(8):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(8):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #aaff00;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(9):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(9):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(9):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(9):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #80ff00;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:nth-of-type(10):hover a {
        color: #222;
    }
    body nav ol li:nth-of-type(10):hover ol li a {
        color: #fff;
    }
    body nav ol li:nth-of-type(10):hover:before {
        transform: translateY(0) rotate(0deg);
    }
    body nav ol li:nth-of-type(10):before {
        content: '';
        position: absolute;
        width: 100%;
        height: 100%;
        background: #55ff00;
        top: 0;
        left: 0;
        z-index: -1;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        transform: translateY(-125%) rotate(-5deg);
    }
    body nav ol li:hover ol {
        transform: translateY(0) translateZ(-1px);
    }
    body nav ol li:hover ol:after {
        transform: rotate(0deg);
    }
    body nav ol li:hover ol li:nth-of-type(1n) {
        transform: none;
        margin: 0px;
    }
    body nav ol li:hover ol li:nth-of-type(1n):hover:after {
        opacity: 1;
        top: 0vh;
    }
    body nav ol li a {
        color: #fff;
        text-decoration: none;
        text-transform: uppercase;
        letter-spacing: 2px;
        font-weight: 900;
    }
    body nav ol li ol {
        display: block;
        position: absolute;
        top: 100%;
        transform: translateY(-110%) translateZ(-5px);
        transform-origin: top right;
        z-index: -1;
        width: 120%;
        left: 0;
    }
    body nav ol li ol:hover li:nth-of-type(1n):hover {
        padding: 40px 30px;
    }
    body nav ol li ol li {
        display: block;
        margin: 20px 0;
    }
    body nav ol li ol li a {
        font-size: 14px;
    }
    body nav ol li ol li:before {
        display: none;
    }
    body nav ol li ol li:nth-of-type(1) {
        transition-delay: 0.1s;
        background: #ff2b00;
    }
    body nav ol li ol li:nth-of-type(1):before {
        animation-delay: 0.05s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #ff2b00 45%, #ff2b00 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #ff2b00 transparent transparent #ff2b00;
    }
    body nav ol li ol li:nth-of-type(2) {
        transition-delay: 0.2s;
        background: #ff5500;
    }
    body nav ol li ol li:nth-of-type(2):before {
        animation-delay: 0.1s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #ff5500 45%, #ff5500 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #ff5500 transparent transparent #ff5500;
    }
    body nav ol li ol li:nth-of-type(3) {
        transition-delay: 0.3s;
        background: #ff8000;
    }
    body nav ol li ol li:nth-of-type(3):before {
        animation-delay: 0.15s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #ff8000 45%, #ff8000 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #ff8000 transparent transparent #ff8000;
    }
    body nav ol li ol li:nth-of-type(4) {
        transition-delay: 0.4s;
        background: #ffaa00;
    }
    body nav ol li ol li:nth-of-type(4):before {
        animation-delay: 0.2s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #ffaa00 45%, #ffaa00 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #ffaa00 transparent transparent #ffaa00;
    }
    body nav ol li ol li:nth-of-type(5) {
        transition-delay: 0.5s;
        background: #ffd500;
    }
    body nav ol li ol li:nth-of-type(5):before {
        animation-delay: 0.25s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #ffd500 45%, #ffd500 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #ffd500 transparent transparent #ffd500;
    }
    body nav ol li ol li:nth-of-type(6) {
        transition-delay: 0.6s;
        background: yellow;
    }
    body nav ol li ol li:nth-of-type(6):before {
        animation-delay: 0.3s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, yellow 45%, yellow 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: yellow transparent transparent yellow;
    }
    body nav ol li ol li:nth-of-type(7) {
        transition-delay: 0.7s;
        background: #d5ff00;
    }
    body nav ol li ol li:nth-of-type(7):before {
        animation-delay: 0.35s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #d5ff00 45%, #d5ff00 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #d5ff00 transparent transparent #d5ff00;
    }
    body nav ol li ol li:nth-of-type(8) {
        transition-delay: 0.8s;
        background: #aaff00;
    }
    body nav ol li ol li:nth-of-type(8):before {
        animation-delay: 0.4s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #aaff00 45%, #aaff00 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #aaff00 transparent transparent #aaff00;
    }
    body nav ol li ol li:nth-of-type(9) {
        transition-delay: 0.9s;
        background: #80ff00;
    }
    body nav ol li ol li:nth-of-type(9):before {
        animation-delay: 0.45s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #80ff00 45%, #80ff00 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #80ff00 transparent transparent #80ff00;
    }
    body nav ol li ol li:nth-of-type(10) {
        transition-delay: 1s;
        background: #55ff00;
    }
    body nav ol li ol li:nth-of-type(10):before {
        animation-delay: 0.5s;
        background: linear-gradient(45deg, transparent -50%, transparent 45%, #55ff00 45%, #55ff00 55%, transparent 55%, transparent 125%);
        background-repeat: no-repeat;
        border-color: #55ff00 transparent transparent #55ff00;
    }
    body nav ol li ol li:first-of-type {
        margin-top: 0;
    }
    body nav ol li ol li:nth-of-type(even) {
        transform-origin: top left;
        transform: rotate(5deg);
    }
    body nav ol li ol li:nth-of-type(odd) {
        transform-origin: top right;
        transform: rotate(-5deg);
    }
}

@media (max-width: 666px) {
    body nav {
        position: absolute;
        top: 0;
        height: 45px;
        left: 0;
        background: #222;
        width: 100%;
    }
    body nav:hover ol li:nth-of-type(1n) {
        transform: rotate(0deg);
        margin: 0px;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    body nav:hover ol li:nth-of-type(1) {
        transition-delay: 0.0666666667s;
    }
    body nav:hover ol li:nth-of-type(1):hover a {
        color: #ff2b00;
    }
    body nav:hover ol li:nth-of-type(2) {
        transition-delay: 0.1333333333s;
    }
    body nav:hover ol li:nth-of-type(2):hover a {
        color: #ff5500;
    }
    body nav:hover ol li:nth-of-type(3) {
        transition-delay: 0.2s;
    }
    body nav:hover ol li:nth-of-type(3):hover a {
        color: #ff8000;
    }
    body nav:hover ol li:nth-of-type(4) {
        transition-delay: 0.2666666667s;
    }
    body nav:hover ol li:nth-of-type(4):hover a {
        color: #ffaa00;
    }
    body nav:hover ol li:nth-of-type(5) {
        transition-delay: 0.3333333333s;
    }
    body nav:hover ol li:nth-of-type(5):hover a {
        color: #ffd500;
    }
    body nav:hover ol li:nth-of-type(6) {
        transition-delay: 0.4s;
    }
    body nav:hover ol li:nth-of-type(6):hover a {
        color: yellow;
    }
    body nav:hover ol li:nth-of-type(7) {
        transition-delay: 0.4666666667s;
    }
    body nav:hover ol li:nth-of-type(7):hover a {
        color: #d5ff00;
    }
    body nav:hover ol li:nth-of-type(8) {
        transition-delay: 0.5333333333s;
    }
    body nav:hover ol li:nth-of-type(8):hover a {
        color: #aaff00;
    }
    body nav:hover ol li:nth-of-type(9) {
        transition-delay: 0.6s;
    }
    body nav:hover ol li:nth-of-type(9):hover a {
        color: #80ff00;
    }
    body nav:hover ol li:nth-of-type(10) {
        transition-delay: 0.6666666667s;
    }
    body nav:hover ol li:nth-of-type(10):hover a {
        color: #55ff00;
    }
    body nav:hover:before {
        transform: rotate(45deg);
        box-shadow: 0 0 0 0;
    }
    body nav:hover:after {
        transform: rotate(-45deg);
    }
    body nav:before,
    body nav:after {
        content: '';
        position: absolute;
        width: 30px;
        height: 3px;
        background: #fff;
        top: 5px;
        /** top: 10px; �����Ӳ˵������С���� */
        left: calc(50% - 0px);
        /** left: calc(50% - 15px) �����Ӳ˵������С���� **/
        border-radius: 5px;
        box-shadow: 0 10px 0 0 #fff;
        transition: transform 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 100ms ease-in-out;
        transition-delay: 0.1s, 0s;
        transform-origin: 0% 50%;
    }
    body nav:after {
        box-shadow: none;
        top: 30px;
        transform-origin: 0% 50%;
    }
    body nav:hover ol {
        transform: translateY(0) translateZ(-1px);
    }
    body nav:hover ol ol {
        transform: none;
    }
    body nav ol {
        position: absolute;
        width: 100%;
        top: 0px;
        display: table;
        left: 0;
        margin: 0px;
        transform: translateY(calc(-100% - 45px)) translateZ(-1px);
        text-align: center;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        background: #000;
        padding: 60px 0 20px;
        height: auto;
    }
    body nav ol li {
        position: relative;
        display: inline-block;
        width: 100%;
        clear: both;
        height: 50px;
        padding: 10px 0;
        margin: 10px 0;
        transition: all 300ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
        background: #000;
    }
    body nav ol li:nth-of-type(even) {
        transform: rotate(-5deg);
    }
    body nav ol li:nth-of-type(odd) {
        transform: rotate(5deg);
    }
    body nav ol li:hover ol {
        height: auto;
        transition: opacity 0.2s ease-in-out;
        opacity: 1;
    }
    body nav ol li a {
        color: #fff;
        text-decoration: none;
    }
    body nav ol ol {
        position: relative;
        transform: none;
        background: transparent;
        display: inline-block;
        width: 100%;
        height: auto;
        top: auto;
        padding: 0;
        height: 0;
        overflow: hidden;
        opacity: 0;
        transition: opacity 0.2s ease-in-out;
    }
    body nav ol ol li {
        font-size: 12px;
        height: auto;
    }
    body nav ol ol li:first-of-type {
        padding-top: 20px;
    }
}