.section-catalog .tabnav-link.current, .section-catalog .tabnav-link:hover {
	margin-bottom: 15px;
}
@media (max-width: 833px) {
    .section-hero{
    margin-top:-100px;
    }
}
@media (max-width: 694px) {
    .section-hero{
    margin-top:-120px;
    }
}
@media (max-width: 385px) {
    .section-hero{
   margin-top: -140px;
    }
}


@keyframes ribbon-drop {
    0% {
    transform: translateY(-100%);
}
100% {
    transform: translateY(0);
}
}.ribbon {
    --ribbon-link-inline-color: inherit;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.4285914286;
    font-weight: 400;
    letter-spacing: -0.016em;
    font-family: SF Pro Text, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
    --ribbon-link-color: rgb(0, 102, 204);
    --ribbon-focus-color: #0071e3;
    --ribbon-text-color: rgb(29, 29, 31);
    --ribbon-background-color: rgb(245, 245, 247);
    --ribbon-content-padding-top: 16px;
    --ribbon-content-padding-bottom: var(--ribbon-content-padding-top);
    --ribbon-content-width: 83.33333%;
    --ribbon-content-minimum-width: 320px;
    width: var(--ribbon-width);
    padding-top: var(--ribbon-padding-top);
    padding-bottom: var(--ribbon-padding-bottom);
}
.ribbon-variant-neutral-alpha.edu_ribbon.ribbon.theme-light{
    top:50px;
}
.ribbon-content-wrapper {
    text-align: center;
}
.ribbon-content {
    margin-left: auto;
    margin-right: auto;
    width: var(--ribbon-content-width);
    min-width: var(--ribbon-content-minimum-width);
}
.ribbon-link {
    white-space: nowrap;
}
.ribbon-link:focus {
    outline: 2px solid var(--sk-focus-color, #0071e3);
    outline-offset: var(--sk-focus-offset, 1px);
}
.ribbon-link-inline {
    color: var(--ribbon-link-inline-color);
}
.ribbon-link-inline, .ribbon-link-inline:link {
    text-decoration: underline;
}
.ribbon:lang(ar) {
    letter-spacing: 0em;
    font-family: SF Pro AR, SF Pro AR Text, SF Pro Text, SF Pro Gulf, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(ja) {
    line-height: 1.4;
    letter-spacing: 0em;
    font-family: SF Pro JP, SF Pro Text, SF Pro Icons, Hiragino Kaku Gothic Pro, ヒラギノ角ゴ Pro W3, メイリオ, Meiryo, ＭＳ Ｐゴシック, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(ko) {
    line-height: 1.5714285714;
    letter-spacing: 0em;
    font-family: SF Pro KR, SF Pro Text, SF Pro Icons, Apple Gothic, HY Gulim, MalgunGothic, HY Dotum, Lexi Gulim, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(zh) {
    line-height: 1.5;
    letter-spacing: 0em;
}
.ribbon:lang(th) {
    line-height: 1.3571828571;
    letter-spacing: 0em;
    font-family: SF Pro TH, SF Pro Text, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(zh-CN) {
    font-family: SF Pro SC, SF Pro Text, SF Pro Icons, PingFang SC, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(zh-HK) {
    font-family: SF Pro HK, SF Pro Text, SF Pro Icons, PingFang HK, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(zh-MO) {
    font-family: SF Pro HK, SF Pro TC, SF Pro Text, SF Pro Icons, PingFang HK, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon:lang(zh-TW) {
    font-family: SF Pro TC, SF Pro Text, SF Pro Icons, PingFang TC, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-content-wrapper {
    background-color: var(--ribbon-background-color);
    -webkit-backdrop-filter: blur(var(--ribbon-background-blur));
    backdrop-filter: blur(var(--ribbon-background-blur));
    padding-top: var(--ribbon-content-padding-top);
    padding-bottom: var(--ribbon-content-padding-bottom);
    border-radius: var(--ribbon-border-radius);
}
.ribbon-content {
    color: var(--ribbon-text-color);
}
.ribbon-link {
    color: var(--ribbon-link-color);
}
.ribbon-link:focus {
    outline-color: var(--ribbon-focus-color);
}
.ribbon-elevated {
    font-size: 17px;
    line-height: 1.4705882353;
    font-weight: 400;
    letter-spacing: -0.022em;
    font-family: SF Pro Text, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
    --ribbon-content-padding-top: 24px;
}
.ribbon-elevated:lang(ar) {
    letter-spacing: 0em;
    font-family: SF Pro AR, SF Pro AR Text, SF Pro Text, SF Pro Gulf, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(ja) {
    line-height: 1.3529611765;
    letter-spacing: 0em;
    font-family: SF Pro JP, SF Pro Text, SF Pro Icons, Hiragino Kaku Gothic Pro, ヒラギノ角ゴ Pro W3, メイリオ, Meiryo, ＭＳ Ｐゴシック, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(ko) {
    line-height: 1.5882352941;
    letter-spacing: 0em;
    font-family: SF Pro KR, SF Pro Text, SF Pro Icons, Apple Gothic, HY Gulim, MalgunGothic, HY Dotum, Lexi Gulim, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(zh) {
    letter-spacing: 0em;
}
.ribbon-elevated:lang(th) {
    line-height: 1.3529611765;
    letter-spacing: 0em;
    font-family: SF Pro TH, SF Pro Text, SF Pro Icons, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(zh-CN) {
    font-family: SF Pro SC, SF Pro Text, SF Pro Icons, PingFang SC, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(zh-HK) {
    font-family: SF Pro HK, SF Pro Text, SF Pro Icons, PingFang HK, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(zh-MO) {
    font-family: SF Pro HK, SF Pro TC, SF Pro Text, SF Pro Icons, PingFang HK, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated:lang(zh-TW) {
    font-family: SF Pro TC, SF Pro Text, SF Pro Icons, PingFang TC, Helvetica Neue, Helvetica, Arial, sans-serif;
}
.ribbon-elevated.ribbon-inset {
    --ribbon-border-radius: 12px;
}
.ribbon-blue {
    --ribbon-background-color: rgb(0, 113, 227);
    --ribbon-text-color: rgb(245, 245, 247);
    --ribbon-link-color: rgb(245, 245, 247);
    --ribbon-focus-color: rgb(255, 255, 255);
}
.ribbon-variant-neutral-alpha {
    --ribbon-background-color: rgba(245, 245, 247, 0.8);
}
.ribbon-variant-neutral-alt {
    --ribbon-background-color: rgb(255, 255, 255);
}
.ribbon-blue-to-default {
    --ribbon-background-color: rgb(245, 245, 247);
    --ribbon-background-color-initial: rgb(0, 113, 227);
    --ribbon-text-color: rgb(29, 29, 31);
    --ribbon-text-color-initial: rgb(245, 245, 247);
    --ribbon-link-color: rgb(0, 102, 204);
    --ribbon-link-color-initial: rgb(245, 245, 247);
}
@keyframes ribbon-animate-background {
    0% {
    background-color: var(--ribbon-background-color-initial);
}
100% {
    background-color: var(--ribbon-background-color);
}
}.ribbon-animate-color .ribbon-content-wrapper {
    background-color: var(--ribbon-background-color-initial);
    animation: ribbon-animate-background .8s ease-in-out 1.6s forwards;
}
@media(prefers-reduced-motion) {
    .ribbon-animate-color .ribbon-content-wrapper {
    background-color: var(--ribbon-background-color);
    animation: none;
}
}@keyframes ribbon-animate-text-color {
    0% {
    color: var(--ribbon-text-color-initial);
}
100% {
    color: var(--ribbon-text-color);
}
}.ribbon-animate-color .ribbon-content {
    color: var(--ribbon-text-color-initial);
    animation: ribbon-animate-text-color .8s ease-in-out 1.6s forwards;
}
@media(prefers-reduced-motion) {
    .ribbon-animate-color .ribbon-content {
    color: var(--ribbon-text-color);
    animation: none;
}
}@keyframes ribbon-animate-link-color {
    0% {
    color: var(--ribbon-link-color-initial);
}
100% {
    color: var(--ribbon-link-color);
}
}.ribbon-animate-color .ribbon-link {
    color: var(--ribbon-link-color-initial);
    animation: ribbon-animate-link-color .8s ease-in-out 1.6s forwards;
}
@media(prefers-reduced-motion) {
    .ribbon-animate-color .ribbon-link {
    color: var(--ribbon-link-color);
    animation: none;
}
}.ribbon-drop-wrapper {
    animation: ribbon-drop .8s ease-in-out forwards;
}
@media(prefers-reduced-motion) {
    .ribbon-drop-wrapper {
    animation: none;
}
}.ribbon-inset {
    --ribbon-width: 83.33333%;
    --ribbon-padding-top: 16px;
    --ribbon-border-radius: 10px;
    margin: 0 auto;
}
.ribbon-inset .ribbon-content {
    width: var(--ribbon-width);
}
@media(max-width:734px) {
    .ribbon-inset {
    --ribbon-width: 87.5%}
.ribbon-inset .ribbon-content {
    min-width: var(--ribbon-width);
}
}.ribbon-blur {
    --ribbon-background-blur: 20px;
}
.theme-dark.ribbon, .theme-dark .ribbon {
    --ribbon-text-color: rgb(245, 245, 247);
    --ribbon-background-color: rgb(29, 29, 31);
    --ribbon-link-color: rgb(41, 151, 255);
    --ribbon-focus-color: #0071e3;
}
.theme-dark.ribbon-blue, .theme-dark .ribbon-blue {
    --ribbon-background-color: rgb(0, 113, 227);
    --ribbon-text-color: rgb(245, 245, 247);
    --ribbon-link-color: rgb(245, 245, 247);
    --ribbon-focus-color: rgb(255, 255, 255);
}
.theme-dark.ribbon-variant-neutral-alpha, .theme-dark .ribbon-variant-neutral-alpha {
    --ribbon-background-color: rgba(29, 29, 31, 0.8);
}
.theme-dark.ribbon-variant-neutral-alt, .theme-dark .ribbon-variant-neutral-alt {
    --ribbon-background-color: rgb(0, 0, 0);
}
.theme-dark.ribbon-blue-to-default, .theme-dark .ribbon-blue-to-default {
    --ribbon-background-color: rgb(29, 29, 31);
    --ribbon-text-color: rgb(245, 245, 247);
    --ribbon-link-color: rgb(41, 151, 255);
}
.theme-light.ribbon, .theme-light .ribbon {
    --ribbon-text-color: rgb(29, 29, 31);
    --ribbon-background-color: rgb(245, 245, 247);
    --ribbon-link-color: rgb(0, 102, 204);
    --ribbon-focus-color: #0071e3;
}
.theme-light.ribbon-blue, .theme-light .ribbon-blue {
    --ribbon-background-color: rgb(0, 113, 227);
    --ribbon-text-color: rgb(245, 245, 247);
    --ribbon-link-color: rgb(245, 245, 247);
    --ribbon-focus-color: rgb(255, 255, 255);
}
.theme-light.ribbon-variant-neutral-alpha, .theme-light .ribbon-variant-neutral-alpha {
    --ribbon-background-color: rgba(245, 245, 247, 0.8);
}
.theme-light.ribbon-variant-neutral-alt, .theme-light .ribbon-variant-neutral-alt {
    --ribbon-background-color: rgb(255, 255, 255);
}
.theme-light.ribbon-blue-to-default, .theme-light .ribbon-blue-to-default {
    --ribbon-background-color: rgb(245, 245, 247);
    --ribbon-text-color: rgb(29, 29, 31);
    --ribbon-link-color: rgb(0, 102, 204);
}
.ribbon, .ribbon.edu_ribbon {
    z-index: 3;
    position: relative;
}
.ribbon.edu_ribbon {
    margin-top: calc(var(--r-localnav-height)*-1);
}
html.text-zoom .ribbon.edu_ribbon {
    margin-top: -108px;
}
@media(max-width:734px) {
    html.text-zoom .ribbon.edu_ribbon {
    margin-top: -100px;
}
}.ribbon.edu_ribbon+.section-welcome .inline-media-ui-button .play-pause-button {
    margin-top: calc(var(--welcome-media-ui-offset) + var(--r-globalnav-height) + var(--r-localnav-height));
}
@media(max-width:734px) {
    .ribbon.edu_ribbon+.section-welcome.section-welcome-localnav-overlap.section-welcome-globalnav-overlap {
    --welcome-margin-top: calc(var(--r-globalnav-height)*-1 + var(--r-localnav-height)*-1 - 20px);
}
}@media(min-width:1376px) {
    html.no-enhanced.text-zoom .ribbon.edu_ribbon+.section-welcome.section-welcome-localnav-overlap.section-welcome-globalnav-overlap {
    --welcome-margin-top: calc(var(--r-localnav-height)*-1);
}
}@media(max-width:734px) {
    html.no-enhanced.text-zoom .ribbon.edu_ribbon+.section-welcome.section-welcome-localnav-overlap.section-welcome-globalnav-overlap {
    --welcome-margin-top: calc(var(--r-globalnav-height)*-1 + var(--r-localnav-height)*-1 - 70px);
}
}