html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
font,
img,
ins,
kbd,
q,
s,
samp,
span,
small,
strike,
strong,
sub,
sup,
tt,
var,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
button,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
section,
nav,
header,
footer {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  font-weight: inherit;
  font-style: inherit;
  font-size: 100%;
  font-family: inherit;
  text-align: inherit;
  line-height: inherit;
}
html {
  width: 100%;
  height: 100%;
  -webkit-text-size-adjust: none;
  overflow-y: scroll;
}
.placeholder {
  color: var(--text-placeholder) !important;
}
::-webkit-input-placeholder {
  color: var(--text-placeholder);
}
:-moz-placeholder {
  color: var(--text-placeholder);
}
::-moz-placeholder {
  color: var(--text-placeholder);
}
:-ms-input-placeholder {
  color: var(--text-placeholder);
}
:focus::-webkit-input-placeholder {
  opacity: 0;
}
:focus:-moz-placeholder {
  opacity: 0;
}
:focus::-moz-placeholder {
  opacity: 0;
}
:focus:-ms-input-placeholder {
  opacity: 0;
}

body {
  width: 100%;
  min-height: 100%;
  color: var(--text-base);
  background: var(--bg-base);
  font: small-caption;
  line-height: 1.5;
  font-size: 14px;
  position: relative;
  overflow: hidden;
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
strong {
  font-weight: bold;
}
a {
  text-decoration: none;
  text-transform: none;
  color: inherit;
  transition: opacity 0.3s;
}
a img {
  border: 0;
}

a span {
  cursor: pointer;
}

.noFloat:after {
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
  overflow: hidden;
}
textarea {
  resize: none;
}
input,
textarea,
button,
select {
  font: small-caption;
  font-size: 14px;
  -webkit-appearance: none;
}
input:focus,
textarea:focus,
select:focus {
  outline: none;
}
ul,
ol,
dl {
  list-style: none;
  display: block;
}
dd,
dt,
li {
  display: block;
}

body {
    --bg-base: #fff;
    --bg-secondary: #f9f9f9;
    --bg-list: #e9edf6;
    --bg-dark: #101f3c;

    --text-base: #000;
    --text-caption: #666;
    --text-inverse: #fff;
    --text-placeholder: #b5b5b5;
    --text-secondary: #1b355d66;

    --brand-primary: #0066CC;
    --brand-secondary: #6dc2aa;

    --line-base: #e6e6e6;
    --line-secondary: #f5f5f5;
    --line-inverse: rgba(255, 255, 255, 0.2);

    --shadow-base: 0 0 20px #0d26534d;

    --mask-base: rgba(0, 0, 0, 0.5);
}

.mainwrap{
    margin-top: 164px;
}
@media (max-width: 768px) {
    .mainwrap{
        margin-top: 82px;
    }
}
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 20px;
}
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.header-top {
    display: flex;
    justify-content: center;
    padding: 40px 0 20px;
}
.header-banner {
    width: auto;
    max-width: 220px;
    margin: 0 auto;
    display: block;
}

.nav-desktop {
    padding:10px 0 ;
    display: flex;
    justify-content:center;
    align-items: center;
}

.nav-desktop a {
    text-decoration: none;
    font-weight: 500;
    font-style: normal;
    font-size: 14px;
    transition: color 0.3s;
    padding: 10px 20px;
}

.nav-desktop a:hover,
.nav-desktop a.active,
.nav-desktop a:active {
    color: #0E7BC3 !important;
}

.lang-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    color: var(--text-caption);
    font-weight: 500;
    font-style: normal;
    font-size: 14px;
    position: relative;
}

.lang-selector svg {
    width: 12px;
    height: 12px;
}

.lang-btn {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px;
    white-space: nowrap;
}

.lang-arrow {
    width: 12px;
    height: 12px;
    transition: transform 0.3s;
}

.lang-btn.active .lang-arrow {
    transform: rotate(180deg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-base);
    border: 1px solid #eee;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    min-width: 80px;
    z-index: 1001;
}
.lang-dropdown.active {
    display: block;
}

.lang-dropdown a {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 8px 16px;
    color: var(--text-caption);
    text-decoration: none;
    transition: background 0.3s;
    white-space: nowrap;
}

.lang-dropdown a:hover {
    background: #f5f5f5;
    color: var(--brand-primary);
    width: 100%;
}

.menu-toggle {
    display: none;
    cursor: pointer;
    padding: 10px 0;
    position: absolute;
    left:20px;
    top: 20px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #0078C8;
    margin: 5px 0;
    transition: all 0.3s;
}

.nav-mobile {
    display: none;
    background: var(--bg-base);
    padding: 16px;
    border-top: 1px solid #eee;
    position:absolute;
    width: 100%;
    left: 0;
    right: 0;
    top: 100%;
    margin: 0;
    max-height: 510px;
    box-sizing: border-box;
    overflow-y: auto;
    z-index: 999;
}



.nav-mobile a {
    text-decoration: none;
    font-weight: 500;
    font-style: normal;
    font-size: 15px;
    display: block;
    line-height: 20px;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}


.nav-mobile .lang-selector-mobile {
    gap: 4px;
    cursor: pointer;
    font-weight: 400;
    font-size: 12px;
}

.nav-mobile .lang-selector-mobile .lang-btn {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    padding:8px 0;
    font-size: 15px;
}

.nav-mobile .lang-selector-mobile svg {
    width: 10px;
    height: 10px;
}

.nav-mobile .lang-dropdown-mobile {
    background-color: var(--bg-secondary);
    display: none;
}

.nav-mobile .lang-dropdown-mobile.active {
    display: block;
}

.nav-mobile .lang-dropdown-mobile a {
    display: block;
    padding: 8px 16px;
    color: var(--text-caption);
    text-decoration: none;
    font-size: 12px;
    border: none;
}

.nav-mobile .lang-dropdown-mobile a:hover {
    background: #f5f5f5;
    color: var(--brand-primary);
}


.nav-mobile a:hover,
.nav-mobile a.active,
.nav-mobile a:active {
    color: #0E7BC3 !important;
}





@media (max-width: 768px) {
    .header-top{
        padding: 20px 0;
    }
    .nav-desktop {
        display: none;
    }

    .menu-toggle {
        display: block;
        z-index: 1002;
    }

    .header .container {
        position: relative;
    }
    .nav-mobile.active {
        display: block;
    }

}





.footer-organizers-wrapper {
    padding: 80px 0 ;
}

.footer-organizers .item + .item{
    margin-top: 48px;
}
.footer-organizers h4 {
    font-weight: 500;
    font-size: 32px;
    line-height: 40px;
    text-align: center;
    margin-bottom: 8px;
}

.footer-organizers p {
    font-weight: 400;
    font-size: 16px;
    line-height: 28px;
    text-align: center;
}


.footer-bottom {
    background: #1A1A1A;
    color: #999;
    padding: 24px 0;
    border-top: 1px solid #333;
}

.footer-bottom .container {
    padding: 0 20px;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.footer-bottom-left p {
    font-size: 12px;
    line-height: 16px;
}

.footer-bottom-right {
    text-align: right;
    display: flex;
    gap: 24px;
    align-items: center;
}

.footer-legal-item {
    font-size: 12px;
    line-height: 16px;
}

.gongan-icon {
    width: 12px;
    height: 12px;
    margin-right: 4px;
    vertical-align: middle;
}


.section-divider{
    width: 100%;
    height: 1px;
    background-color: #DEDEDE;
}


.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    font-size: 24px;
    background: #F36B3A;
    color: var(--bg-base);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 999;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}



@media (max-width: 900px) {
    .footer-bottom-content {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    .footer-bottom-right{
        flex-direction: column;
        gap:10px
    }
}


@media (max-width: 768px) {
    .footer-organizers-wrapper{
        padding: 60px 0;
    }
    .footer-organizers h4 {
        font-size: 24px;
    }
    .back-to-top {
        width: 34px;
        height: 34px;
        font-size: 20px;
    }

}




.partners {
    padding: 80px 0;
}

.partners h2 {
    text-align: center;
    font-weight: 500;
    font-size: 32px;
    line-height:1.3;
    margin-bottom: 30px;
}

.partners-grid {
    display:flex;
    justify-content:space-between;
    align-items: center;
    flex-wrap:wrap;
    gap:32px
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-item img {
    width: 300px;
    height: 130px;
    object-fit: contain;
    margin: 0 auto;
}

@media (max-width: 980px) {
    .partners h2 {
        font-size: 28px;
    }
}
@media (max-width: 768px) {
    .partners {
        padding:60px 0 40px ;
    }
    .partners-grid {
        flex-direction: column;
        justify-content: center;
    }
}


@media (max-width: 850px) {
    .enheader .nav-desktop a {
    padding: 10px 15px;
    }
}