@charset "UTF-8";

:root{--red:#e63135;--red-dark:#c82129;--ink:#202321;--muted:#757873;--paper:#f7f7f5;--line:#dedfda;--header-height:88px;--page-pad:64px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box;letter-spacing:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-height) + 22px)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
body.modal-open{overflow:hidden}
button,a,input,textarea{-webkit-tap-highlight-color:transparent}
button,textarea{font:inherit}
button,a{touch-action:manipulation}
button{color:inherit;cursor:pointer}
button{border:0}
a{color:inherit;text-decoration:none}
button:disabled{cursor:default}
button:focus-visible,a:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--red);outline-offset:5px}
img{display:block;max-width:100%;object-fit:cover}
button img{width:100%}
svg.icon{width:20px;height:20px;flex-shrink:0;stroke-width:1.7;vertical-align:middle}
[hidden]{display:none!important}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{font-weight:650}
h2{font-size:44px;line-height:1.45}
h3{font-size:32px;line-height:1.5}
p{line-height:1.95}
::selection{background:var(--red);color:white}
.container{max-width:1440px;width:100%;padding-left:var(--page-pad);padding-right:var(--page-pad);margin-inline:auto}
.section{padding-block:100px}
.section-kicker{display:flex;justify-content:space-between;gap:20px;font-size:11px;font-weight:600;line-height:1.5;margin-bottom:38px;color:var(--muted)}
.section-kicker>span:first-child{display:flex;align-items:center;gap:12px;color:inherit}
.section-kicker>span:first-child::before{content:"";width:7px;height:7px;background:var(--red);flex-shrink:0}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:38px}
.section-heading p{font-size:15px;color:var(--muted);margin-top:14px}
.section-heading .section-kicker{margin-bottom:20px}
.tiny-label{font-size:10px;line-height:1.6;font-weight:600}
.red-text{color:var(--red)}
.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:30px;padding:14px 24px;font-size:13px;font-weight:600;line-height:1.5;transition:background .2s,transform .2s}
.button:hover{transform:translateY(-2px)}
.button-red{background:var(--red);color:white}
.button-red:hover{background:var(--red-dark)}
.button-white{background:white;color:var(--ink)}
.button-white:hover{background:var(--paper)}
.text-link{display:inline-flex;align-items:center;gap:20px;font-size:13px;font-weight:600;background:none;padding:0 0 9px;border-bottom:1px solid currentColor;line-height:1.8;white-space:nowrap}
.text-link:hover{color:var(--red)}
.icon-button{width:42px;height:42px;display:inline-flex;justify-content:center;align-items:center;background:transparent;flex-shrink:0;transition:background .2s}
.icon-button:hover{background:#0000000c}
.icon-button.light{color:white;border:1px solid #ffffff4d}
.icon-button.light:hover{background:#ffffff24}
.skip-link{position:fixed;left:10px;top:-100px;padding:15px;background:var(--ink);color:white;z-index:100}
.skip-link:focus{top:10px}
.site-header{height:var(--header-height);padding-inline:40px;background:#fdfdfb;display:flex;align-items:center;justify-content:space-between;gap:30px;position:sticky;top:0;z-index:30;border-bottom:1px solid #00000008}
.brand{display:flex;align-items:center;gap:18px;flex-shrink:0}
.brand-word{font-family:Arial,Helvetica,sans-serif;font-size:42px;font-weight:900;font-style:italic;line-height:1;display:flex;align-items:flex-end}
.brand-dot{width:8px;height:8px;margin:0 0 5px 4px;background:var(--red)}
.brand-divider{height:32px;width:1px;background:#d4d5d1}
.brand-edition{display:flex;flex-direction:column;gap:7px}
.brand-edition strong{font-size:12px;font-weight:600}
.brand-edition>span{font-family:Arial,sans-serif;font-size:8px;color:var(--muted)}
.desktop-nav{display:flex;align-items:center;gap:30px;height:100%;margin-left:auto}
.desktop-nav a{font-size:12px;position:relative;display:flex;align-items:center;height:100%;white-space:nowrap;color:#626560}
.desktop-nav a::after{content:"";position:absolute;bottom:19px;left:0;width:0;height:2px;background:var(--red);transition:width .2s}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--ink)}
.desktop-nav a.active::after{width:18px}
.header-actions{display:flex;gap:10px;align-items:center}
.header-signup{font-size:12px;min-height:42px;padding:11px 20px;gap:24px}
.menu-button,.mobile-only{display:none}
.mobile-nav{position:absolute;top:var(--header-height);left:0;right:0;padding:12px 24px 24px;background:var(--paper);box-shadow:0 15px 20px #0000000a}
.mobile-nav a{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);font-size:16px}
.hero{position:relative;isolation:isolate;color:white;min-height:610px;height:min(730px,calc(100svh - 158px));background:#383b3a;overflow:hidden}
.hero-image{position:absolute;inset:0;z-index:-3;width:100%;height:100%;object-fit:cover;object-position:center 56%;transition:opacity .18s}
.hero-image.changing{opacity:.25}
.hero-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,rgba(15,22,23,.84) 0%,rgba(16,20,22,.62) 30%,rgba(16,20,22,.15) 68%,rgba(16,20,22,.02) 100%),linear-gradient(0deg,rgba(10,17,19,.55),transparent 25%)}
.hero-content{padding-top:48px;padding-bottom:100px;position:relative}
.eyebrow{font-family:Arial,sans-serif;font-size:10px;font-weight:600;display:flex;align-items:center;gap:12px;line-height:1.5}
.status-dot{height:6px;width:6px;background:var(--red);flex-shrink:0}
.edition-tag{margin-left:5px;color:#e3e5e4;font-size:9px;border-left:1px solid #ffffff69;padding-left:15px}
.hero-year{font-family:Arial,Helvetica,sans-serif;font-size:72px;line-height:1;font-weight:700;margin:27px 0 9px}
.hero h1{font-size:64px;line-height:1.23;font-weight:700}
.title-period{color:var(--red);margin-left:5px}
.hero-location{font-size:22px;display:flex;align-items:center;gap:15px;margin-top:16px;line-height:1.5;font-weight:500}
.hero-location>span{width:30px;height:2px;background:var(--red)}
.hero-description{font-size:13px;line-height:1.95;color:#e1e4e3;margin-top:22px}
.hero-content>.button{margin-top:25px;gap:46px;font-size:12px;min-height:45px}
.hero-bottom{position:absolute;left:0;right:0;bottom:24px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.hero-coordinate{font-family:Arial,sans-serif;font-size:10px;display:flex;align-items:center;gap:9px}
.hero-coordinate .icon{width:14px;height:14px}
.hero-gallery-control{display:flex;align-items:center;gap:8px}
.scene-caption{font-size:10px;color:#e0e3e1;margin-right:20px}
.slide-counter{display:flex;align-items:center;gap:10px;font-family:Arial,sans-serif;font-size:10px;margin-right:12px}
.slide-counter b{font-size:15px;font-weight:500}.slide-counter>span{color:#d2d4d3}
.hero-gallery-control .icon-button{width:34px;height:34px}.hero-gallery-control .icon{width:16px}
.event-ribbon{background:#efefeb;border-bottom:1px solid #e1e2dc}
.ribbon-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.ribbon-inner>span,.ribbon-inner>a{font-size:11px;display:flex;gap:12px;align-items:center;white-space:nowrap}
.ribbon-inner>span .icon{color:var(--red);width:18px;height:18px}
.ribbon-inner>a{font-weight:600}.ribbon-inner>a:hover{color:var(--red)}
.about-intro{display:grid;grid-template-columns:1.05fr 1fr;gap:100px}
.english-subtitle{font-family:Arial,sans-serif;font-size:10px;color:#8b8e88;margin-top:25px}
.about-copy{padding-top:3px}.about-copy p{font-size:14px;color:#666b65;margin-bottom:16px}.about-copy .text-link{margin-top:14px}
.statistics{margin-top:66px;padding-block:34px 38px;display:grid;grid-template-columns:1.1fr 1fr 1fr 1.2fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-context{display:flex;flex-direction:column;gap:13px}.stat-context>.tiny-label{color:var(--muted)}.stat-context>strong{font-size:22px;line-height:1.6;font-weight:500}.source-note{font-size:9px;color:var(--muted);line-height:1.8}
.stat{border-left:1px solid var(--line);padding-left:36px;display:flex;flex-direction:column;justify-content:center;gap:10px}.stat>strong{font-family:Arial,Helvetica,sans-serif;font-weight:500;font-size:68px;line-height:1.1;color:var(--red);white-space:nowrap}.stat>strong>span{font-size:34px;vertical-align:top;position:relative;top:5px;margin-left:5px}.stat>span{font-size:13px;margin-top:4px}.stat>small{font-family:Arial,sans-serif;font-size:8px;color:var(--muted)}
.about-bottom{display:flex;align-items:center;gap:13px;padding-top:24px}.red-marker{width:5px;height:5px;background:var(--red);flex-shrink:0}.about-bottom p{font-size:11px;color:#777c76}.about-bottom>.tiny-label{margin-left:auto;color:#91948d;font-size:8px}
.challenges-section{background:#212624;color:#fff}.challenges-section .section-kicker{color:#b5b9b3}.challenges-section .section-heading p{color:#b2b7b0}.outlined-word{font-family:Arial,sans-serif;font-size:66px;font-weight:700;color:transparent;-webkit-text-stroke:1px #737a73;line-height:1}
.challenge-tabs{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid #535951;margin-top:45px}.challenge-tab{display:flex;align-items:center;padding:22px 22px 22px 0;gap:16px;background:transparent;font-size:19px;color:#9ea69c;border-bottom:3px solid transparent;position:relative;top:1px}.challenge-tab.active{color:white;border-color:var(--red)}.challenge-tab:hover{color:white}.challenge-tab+.challenge-tab{padding-left:28px}.tab-number{font-family:Arial,sans-serif;font-size:12px;color:#939b90}.tab-english{font-family:Arial,sans-serif;font-size:10px;align-self:center;margin-left:6px}.challenge-tab .icon{margin-left:auto}.challenge-tab.active .tab-number{color:var(--red)}
.challenge-panel{display:grid;grid-template-columns:1.1fr 1fr;gap:58px;margin-top:38px;min-height:430px}.challenge-image{position:relative;overflow:hidden;display:block;padding:0;background:#161b17;min-width:0}.challenge-image img{height:100%;object-fit:cover;object-position:48% center;transition:transform .55s}.image-trigger:hover img{transform:scale(1.025)}.image-corner{position:absolute;top:16px;right:16px;background:#161e1b70;color:white;width:34px;height:34px;display:flex;align-items:center;justify-content:center;z-index:2}.image-corner>.icon{width:16px;height:16px}.photo-label{position:absolute;bottom:0;left:0;font-size:9px;color:white;padding:12px 16px;background:#171e1bbd;text-align:left;line-height:1.6;max-width:100%}
.challenge-detail{padding-block:8px}.challenge-detail h3{font-size:34px;margin-top:15px;line-height:1.45}.challenge-detail>p:not(.detail-note){font-size:13px;line-height:1.95;color:#bcc2b8;margin-top:18px;max-width:480px}.challenge-points{margin-top:24px}.challenge-point{display:flex;align-items:center;gap:16px;padding-block:12px;border-top:1px solid #ffffff1c;font-size:12px}.challenge-point>span{font-family:Arial,sans-serif;font-size:10px;color:#aab2a3}.challenge-point>.icon{width:14px;height:14px;margin-left:auto;color:#aab2a3}.detail-note{color:#9da596;font-size:9px;margin-top:13px;line-height:1.9}.challenge-footer{display:flex;justify-content:flex-end;gap:38px;margin-top:32px}.challenge-footer>span{display:flex;align-items:center;gap:8px;font-size:10px;color:#b5beac}.challenge-footer .icon{width:14px;height:14px}
.exchange-section{border-bottom:1px solid var(--line);padding-block:75px}.exchange-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:75px;align-items:center}.exchange-copy .section-kicker{margin-bottom:22px}.exchange-copy h2{font-size:35px}.exchange-copy>p{font-size:13px;color:var(--muted);margin-top:22px}.exchange-topics{display:flex;gap:32px;margin-top:30px}.exchange-topics>span{font-size:11px;display:flex;align-items:center;gap:8px}.exchange-topics .icon{width:16px;color:var(--red)}.exchange-image{position:relative;padding:0;overflow:hidden;aspect-ratio:1.75;background:#e7e8e3}.exchange-image img{height:100%;transition:transform .55s}
.exhibition-section{background:#fff}.exhibition-panorama{width:100%;aspect-ratio:2.7;position:relative;overflow:hidden;padding:0;background:#d8dfdc;display:block}.exhibition-panorama img{width:100%;height:100%;object-position:center 50%;transition:transform .55s}.exhibition-panorama::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#0b151dcc,transparent 68%)}.panorama-caption{position:absolute;z-index:1;left:32px;bottom:45px;color:white;display:flex;flex-direction:column;gap:12px;text-align:left}.panorama-caption>span{font-family:Arial,sans-serif;font-size:9px}.panorama-caption>strong{font-size:26px;font-weight:500}.exhibition-panorama .photo-label{z-index:1;background:none;left:auto;right:0;font-size:8px}.zone-tabs{display:grid;grid-template-columns:repeat(4,1fr);margin-top:34px;border-bottom:1px solid var(--line);scroll-margin-top:110px}.zone-tab{background:none;display:flex;align-items:center;gap:12px;text-align:left;padding:19px 14px;border-bottom:3px solid transparent;position:relative;top:1px}.zone-tab>span{font-family:Arial,sans-serif;font-size:18px;font-weight:600;color:#949992}.zone-tab>strong{font-size:12px;font-weight:500}.zone-tab>.icon{margin-left:auto;width:16px}.zone-tab.active{border-color:var(--red);background:#fafaf7}.zone-tab.active>span{color:var(--red)}.zone-tab:hover{background:#f7f7f4}.zone-panel{display:grid;grid-template-columns:1.4fr 1fr;gap:80px;min-height:330px;padding:38px 35px 28px}.zone-detail h3{font-size:28px;margin-top:12px}.zone-detail>p{font-size:13px;line-height:1.95;color:var(--muted);margin-top:14px;max-width:520px}.equipment-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;padding:0;margin:22px 0;gap:13px 25px}.equipment-list>li{display:flex;gap:9px;font-size:11px;align-items:center}.equipment-list .icon{width:13px;height:13px;color:var(--red)}.zone-range{display:inline-block;font-size:10px;color:var(--muted);padding-top:17px;border-top:1px solid var(--line)}.zone-product{width:100%;height:275px;display:flex;flex-direction:column;align-items:center;gap:12px}.zone-product img{height:235px;width:100%;object-fit:contain;mix-blend-mode:multiply}.zone-product figcaption{font-size:9px;color:#959a90}.exhibition-plan{display:flex;align-items:center;justify-content:space-between;gap:25px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0}.plan-total{display:flex;gap:18px;align-items:center}.plan-total>strong{font-family:Arial,sans-serif;font-size:50px;font-weight:500;line-height:1.1}.plan-total>span{display:flex;flex-direction:column;gap:6px;font-size:12px}.plan-total small{font-size:8px;color:var(--muted)}.plan-breakdown{display:flex;gap:26px;align-items:center}.plan-breakdown>span{font-size:10px;color:var(--muted);display:flex;flex-direction:column;gap:10px}.plan-breakdown b{font-family:Arial,sans-serif;font-size:21px;font-weight:500;color:var(--ink)}.exhibition-plan .text-link{font-size:11px}.exhibition-note{font-size:9px;color:var(--muted);margin-top:16px}
.huaian-section{padding-block:100px;background:#e9ece5;overflow:hidden}.huaian-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:70px;align-items:center}.huaian-copy .section-kicker{margin-bottom:30px}.city-en{font-family:Arial,sans-serif;font-size:12px;font-weight:600;color:#798272;margin-bottom:12px}.huaian-copy h2{font-size:48px;line-height:1.4}.city-description{font-size:13px;color:#6d7668;margin-top:24px;max-width:530px}.city-features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:35px;border-top:1px solid #cdd3c7;padding-top:22px}.city-features>div{display:flex;flex-direction:column;gap:9px}.city-features>div>span{font-family:Arial,sans-serif;font-size:10px;color:#86907d}.city-features strong{font-size:13px;font-weight:500}.city-features p{font-size:9px;color:#78826e;line-height:1.8}.city-photo{align-self:stretch;min-height:420px;display:flex;flex-direction:column;padding-top:32px}.city-photo>img{height:100%;flex:1;width:100%;object-fit:cover;object-position:53% center}.city-photo figcaption{display:flex;align-items:center;gap:7px;margin-top:17px;font-size:9px;color:#6d7666}.city-photo figcaption .icon{height:12px;width:12px}.city-photo figcaption>span{margin-left:auto;font-family:Arial,sans-serif;font-size:8px}
.moments-section{background:var(--paper)}.moments-section h2{font-size:34px}.moments-subtitle{font-size:10px;color:var(--muted)}.moments-grid{display:grid;grid-template-columns:1.1fr .8fr 1.1fr;gap:20px}.moment{padding:0;aspect-ratio:1.28;position:relative;overflow:hidden;text-align:left;background:#dce0d8}.moment>img{height:100%;transition:transform .55s}.moment:nth-child(2)>img{object-position:center 38%}.moment::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#06170ecf,transparent 60%)}.moment-caption{position:absolute;bottom:25px;left:24px;right:20px;color:white;display:grid;grid-template-columns:1fr 20px;gap:8px;z-index:1}.moment-caption>strong{font-size:18px;font-weight:500}.moment-caption>span{grid-column:1;font-family:Arial,sans-serif;font-size:8px;color:#e3e8df}.moment-caption>.icon{grid-column:2;grid-row:1/3;align-self:center}
.registration-section{background:#202623;color:white;position:relative}.registration-section .section-kicker{color:#b3bcb0}.registration-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:start}.registration-year{color:var(--red);font-family:Arial,sans-serif;font-size:15px;font-weight:600;margin-bottom:18px}.registration-copy h2{font-size:49px;line-height:1.4}.registration-copy>p:not(.registration-year){font-size:12px;color:#a7b0a3;margin-top:25px}.event-details{margin:32px 0 0;max-width:400px}.event-details>div{display:flex;align-items:center;gap:25px;padding:14px 0;border-top:1px solid #ffffff21;font-size:11px}.event-details dt{display:flex;align-items:center;gap:9px;color:#a5b19d}.event-details dt .icon{width:14px;height:14px}.event-details dd{margin:0;color:#d8dfd4}.registration-entry{background:#fff;color:var(--ink);padding:34px 38px 24px;min-height:435px;border-radius:2px}.entry-index{font-family:Arial,sans-serif;font-size:9px;color:var(--muted)}.entry-title{display:flex;align-items:center;justify-content:space-between;margin-top:19px}.entry-title h3{font-size:27px}.entry-title>.icon{width:29px;height:29px;color:var(--red)}.entry-description{font-size:12px;color:var(--muted);margin-top:13px}.code-label{display:block;font-size:10px;color:var(--muted);margin-top:25px}.mini-program-code{width:100%;display:block;height:62px;border:1px solid #e1e4dc;border-radius:0;resize:none;margin-top:9px;padding:12px;background:#f6f7f3;font-family:var(--font);font-size:12px;line-height:1.6;color:#545d50;overflow-wrap:anywhere;word-break:break-all}.registration-entry .button{display:flex;width:100%;justify-content:space-between;margin-top:17px}.entry-instruction{font-size:10px;color:var(--muted);margin-top:12px;line-height:1.8}.entry-footer{margin-top:25px;padding-top:17px;border-top:1px solid var(--line);display:flex;gap:8px;align-items:center;font-size:9px;color:#8a9484}.entry-footer .icon{width:13px;height:13px}.copy-status{font-size:11px;line-height:1.6;color:#41783a;min-height:18px;padding-top:9px}.embedded-form-container{margin-top:40px;background:#fff;padding:15px;color:var(--ink)}.embedded-form-container iframe{width:100%;height:800px;border:0}.embedded-form-container p{font-size:12px;margin-top:15px}
.site-footer{background:#161c19;color:white}.footer-main{display:flex;align-items:center;gap:40px;justify-content:space-between;padding-block:35px;border-bottom:1px solid #ffffff14}.footer-brand{gap:22px}.footer-brand .brand-word{font-size:34px}.footer-brand .brand-dot{width:6px;height:6px;margin-bottom:4px}.footer-brand-copy{font-size:8px;line-height:2;color:#a4aca1}.footer-main>p{color:#909c88;font-size:11px}.back-top{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid #7a887354}.back-top:hover{background:#ffffff1a}.footer-bottom{display:flex;justify-content:space-between;gap:20px;font-size:8px;color:#75816d;padding-block:19px;line-height:1.8}
.lightbox{width:min(1200px,94vw);max-width:94vw;max-height:94svh;position:fixed;border:0;border-radius:2px;background:#1a211d;color:white;padding:15px 20px 20px;overflow:auto;box-shadow:0 20px 100px #00000070}.lightbox::backdrop{background:#07120be8;backdrop-filter:blur(6px)}.lightbox-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:12px}.lightbox-toolbar>span{font-size:12px;line-height:1.8}.lightbox-toolbar .icon-button{width:34px;height:34px}.lightbox>img{margin:auto;max-height:calc(90svh - 80px);max-width:100%;width:auto;height:auto;object-fit:contain;background:white}

@media(min-width:1600px){.site-header{padding-inline:max(48px,calc((100vw - 1440px)/2 + 64px))}.hero{height:730px}.hero-content{padding-top:61px}.hero-year{font-size:80px;margin-top:35px}.hero h1{font-size:70px}.hero-description{margin-top:26px}.hero-content>.button{margin-top:30px}}
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