@font-face{font-family:Harshita;src:url(./Harshita-C79_fwLB.woff2)format("woff2");font-weight:400;font-style:normal;font-display:swap}:root{--blue:#1a6ff4;--blue-light:#4d94ff;--blue-dark:#0047cc;--text-dark:#1a1a2e;--text-mid:#444;--text-gray:#888;--page-bg:linear-gradient(160deg, #e9f4ff 0%, #f4f0ff 40%, #fff 100%);color:var(--text-dark);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:#fff;font-family:PingFang SC,Microsoft YaHei,Segoe UI,system-ui,-apple-system,BlinkMacSystemFont,sans-serif}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--page-bg);min-width:320px;margin:0;overflow-x:hidden}button,input,textarea,select{font:inherit}button{padding:0}a{color:inherit;text-decoration:none}img{max-width:100%}.top-line{z-index:1001;background:linear-gradient(90deg, var(--blue), #a855f7, #06b6d4, var(--blue));background-size:200% 100%;height:3px;animation:4s linear infinite gradient-shift;position:fixed;top:0;left:0;right:0}.navbar{z-index:1000;-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);background:#ffffffc7;border-bottom:1px solid #c8dcff59;align-items:center;height:62px;padding:0 clamp(20px,4vw,48px);display:flex;position:fixed;top:0;left:0;right:0;box-shadow:0 2px 24px #0000000f}.nav-logo{flex:none;align-items:center;display:inline-flex}.nav-logo img{width:auto;height:36px;display:block}.nav-spacer{flex:1}.btn-nav{color:#fff;background:var(--blue);letter-spacing:.5px;cursor:pointer;border:none;border-radius:22px;flex-direction:column;align-items:center;margin-left:14px;padding:8px 22px;font-size:13px;font-weight:700;line-height:1.3;transition:all .3s;display:flex}.btn-nav-sub{letter-spacing:1px;text-transform:uppercase;opacity:.85;font-size:10px;font-weight:400;display:block}.btn-nav:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 5px 18px #1a6ff461}.hero-section{min-height:100svh;display:flex;position:relative;overflow:hidden}#explore,#videos,#register{scroll-margin-top:78px}.hero-slides,.hero-slide,.hero-gradient{position:absolute;inset:0}.hero-slide{opacity:0;background-position:top;background-repeat:no-repeat;background-size:cover;transition:opacity .9s;top:62px}.hero-slide.active{opacity:1}.hero-gradient{background:linear-gradient(105deg,#00143c52 0%,#000a1e24 55%,#0000 100%)}.hero-content{z-index:1;text-align:center;color:#fff;flex-direction:column;align-items:center;width:min(780px,100%);margin:0 auto;padding:calc(62px + 12vh) 24px 0;display:flex;position:relative}.hero-title-en{opacity:0;margin:14px 0 0;animation:.9s .2s forwards fade-up;transform:translateY(32px)}.hero-title-en img{width:auto;height:clamp(72px,10vw,280px);display:block}.hero-content h2{color:#fff;letter-spacing:0;text-shadow:0 3px 24px #00000040;opacity:0;margin:20px 0 0;font-size:clamp(42px,6vw,72px);font-weight:800;line-height:1.05;animation:.9s .4s forwards fade-up;transform:translateY(32px)}.hero-content p{color:#ffffffe0;letter-spacing:1px;opacity:0;margin:16px 0 0;font-size:22px;animation:.8s .6s forwards fade-up;transform:translateY(22px)}.hero-cta{color:#2b29ff;cursor:pointer;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);opacity:0;background:linear-gradient(#e9d9ff 0%,#dbc1fd 32%,#e2defd 69%,#b7ffee 100%);border:2px solid #fff9;border-radius:32px;align-items:center;gap:10px;width:fit-content;margin-top:36px;padding:13px 34px;font-size:20px;font-weight:700;transition:all .35s;animation:.8s .8s forwards fade-up;display:inline-flex;transform:translateY(22px)}.hero-cta:hover{background:#ffffff4d;border-color:#fff;transform:translateY(-3px);box-shadow:0 10px 36px #00000038}.hero-cta svg{width:18px;height:18px;transition:transform .3s}.hero-cta:hover svg{transform:rotate(45deg)}.hero-dots{z-index:2;gap:8px;display:flex;position:absolute;bottom:36px;left:50%;transform:translate(-50%)}.hero-dots button{cursor:pointer;background:#ffffff73;border:0;border-radius:4px;width:8px;height:8px;transition:width .3s,background .3s}.hero-dots button.active{background:#fff;width:26px}.scroll-indicator{z-index:2;color:#ffffffb3;letter-spacing:2px;flex-direction:column;align-items:center;gap:8px;font-size:11px;animation:2.2s infinite bounce;display:flex;position:absolute;bottom:36px;right:60px}.scroll-indicator svg{width:20px;height:20px}.section-inner{width:100%;max-width:1440px;margin:0 auto;padding:0 clamp(24px,5vw,60px)}.section-header{text-align:center}.section-header h2{color:var(--blue);letter-spacing:0;margin:0;font-size:clamp(28px,3.5vw,44px);font-weight:900;line-height:1.1}.section-header h2 img{width:auto;height:clamp(44px,5.5vw,80px);display:inline-block}.section-header p{color:var(--text-mid);letter-spacing:.5px;margin:10px 0 0;font-size:17px;font-weight:700}.explore-section{background:linear-gradient(#edf5ff 0%,#f8f5ff 60%,#fff 100%);padding:92px 0 80px}.filter-wrap{flex-wrap:wrap;justify-content:center;gap:14px;margin-top:38px;display:flex}.tag{color:#2b3038;cursor:pointer;-webkit-user-select:none;user-select:none;background:#fbfcfe;border:1.5px solid #e6e8ee;border-radius:28px;justify-content:flex-start;align-items:center;gap:9px;min-width:178px;padding:8px 18px;font-size:14px;font-weight:700;transition:all .28s cubic-bezier(.34,1.4,.64,1);display:flex;position:relative;box-shadow:0 1px 4px #1e283c0d}.tag:hover{border-color:color-mix(in srgb, var(--tag-color) 35%, #e6e8ee);transform:translateY(-2px);box-shadow:0 6px 18px #1e283c1f}.tag.active{color:color-mix(in srgb, var(--tag-color) 72%, #1a1a1a);background:color-mix(in srgb, var(--tag-color) 13%, white);border-color:color-mix(in srgb, var(--tag-color) 40%, white);box-shadow:0 6px 16px color-mix(in srgb, var(--tag-color) 28%, transparent);transform:translateY(-2px)}.tag-pin{filter:drop-shadow(0 1px 1.5px #0000002e);flex:none;width:14px;height:19px;transition:transform .28s cubic-bezier(.34,1.4,.64,1)}.tag.active .tag-pin{transform:scale(1.18)translateY(-1px)}.tag-text{text-align:left;flex-direction:column;align-items:flex-start;gap:2px;display:flex}.tag-text span{font-size:14px;font-weight:700;line-height:1.2}.tag-text small{letter-spacing:.3px;opacity:.7;font-size:10px;font-weight:500;line-height:1.2}.map-container{border-radius:20px;height:680px;margin-top:34px;position:relative;overflow:hidden;box-shadow:0 16px 56px #1a6ff421}@media (width<=900px){.map-container{height:480px}}@media (width<=600px){.map-container{height:340px;margin-top:20px}}#amapContainer{width:100%;height:100%}.amap-pin-wrap{cursor:pointer;flex-direction:column;align-items:center;display:flex;position:relative}.amap-pin-bounce{filter:drop-shadow(0 5px 6px #00000047);will-change:transform;transition:transform .2s,filter .2s;animation:2.4s ease-in-out infinite pinFloat}.amap-pin-wrap:hover .amap-pin-bounce{filter:drop-shadow(0 8px 14px #0006);animation-play-state:paused;transform:scale(1.15)translateY(-3px)}.amap-pin-svg{width:32px;height:44px;display:block}.amap-pin-shadow{background:#0000002e;border-radius:50%;width:14px;height:5px;margin-top:-2px;animation:2.4s ease-in-out infinite shadowScale}@keyframes pinFloat{0%,to{transform:translateY(0)}50%{transform:translateY(-7px)}}@keyframes shadowScale{0%,to{opacity:.3;transform:scaleX(1)}50%{opacity:.12;transform:scaleX(.6)}}.amap-pin-label{white-space:nowrap;letter-spacing:.3px;color:#fff;pointer-events:none;background:#0000008f;border-radius:5px;margin-top:5px;padding:2px 8px;font-size:11px;font-weight:700}.amap-info-content{box-shadow:none!important;background:0 0!important;border:none!important;border-radius:16px!important;padding:0!important;overflow:visible!important}.amap-info-sharp,.amap-info-close{display:none!important}.amap-info-outer{box-shadow:none!important}.amap-iw-card{background:#fff;border-radius:16px;width:248px;animation:.38s cubic-bezier(.34,1.56,.64,1) forwards iwPop;position:relative;overflow:hidden;box-shadow:0 12px 48px #0000002e}@keyframes iwPop{0%{opacity:0;transform:scale(.75)translateY(10px)}to{opacity:1;transform:scale(1)translateY(0)}}.amap-iw-img{object-fit:cover;width:100%;height:114px;display:block}.amap-iw-img-placeholder{color:#8290a3;letter-spacing:1px;background:linear-gradient(135deg,#e8f1fb,#f3effb);justify-content:center;align-items:center;width:100%;height:114px;font-size:12px;display:flex}.amap-iw-body{padding:10px 13px 13px}.amap-iw-name-row{align-items:center;gap:7px;display:flex}.amap-iw-dot{border-radius:50%;flex-shrink:0;width:9px;height:9px}.amap-iw-name{color:var(--text-dark);font-size:14px;font-weight:800}.amap-iw-station{color:var(--text-gray);margin-top:2px;font-size:11px}.amap-iw-desc{color:var(--text-mid);-webkit-line-clamp:5;-webkit-box-orient:vertical;margin-top:7px;font-size:12px;line-height:1.65;display:-webkit-box;overflow:hidden}.amap-iw-close-btn{color:#fff;cursor:pointer;z-index:3;background:#00000052;border:none;border-radius:50%;justify-content:center;align-items:center;width:22px;height:22px;font-family:inherit;font-size:12px;line-height:1;transition:background .2s;display:flex;position:absolute;top:8px;right:8px}.amap-iw-close-btn:hover{background:#0000008c}.map-error{background:#edf5ff;flex-direction:column;justify-content:center;align-items:center;gap:14px;width:100%;height:100%;display:flex}.map-error p{color:#666;text-align:center;padding:0 32px;font-size:14px}.map-error a{color:var(--blue);font-weight:600;text-decoration:none}.map-error a:hover{text-decoration:underline}.video-section{background:#fff;padding:0 0 80px}.video-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;height:780px;margin-top:44px;display:grid}.video-col{flex-direction:column;gap:12px;min-height:0;display:flex}.video-col-mid .video-card:first-child{flex:0 0 300px}.video-col-mid .video-card:last-child,.video-col-right .video-card{flex:1}.video-card{color:#fff;cursor:pointer;background:#111827;border:0;border-radius:8px;width:100%;height:100%;min-height:0;transition:box-shadow .38s,transform .38s;position:relative;overflow:hidden;box-shadow:0 6px 24px #0000001a}.video-card:hover{transform:translateY(-4px)scale(1.01);box-shadow:0 20px 56px #0000003d}.video-card img{object-fit:cover;object-position:center top;width:100%;height:100%;transition:transform .6s cubic-bezier(.22,1,.36,1);display:block}.video-shade{opacity:1;transition:opacity .38s;position:absolute;inset:0}.video-card:hover .video-shade{background:linear-gradient(#00000026 0%,#0000002e 40%,#000000ad 100%)}.video-info{z-index:1;text-align:center;pointer-events:none;flex-direction:column;justify-content:center;align-items:center;padding:20px;display:flex;position:absolute;inset:0}.video-card:hover img{transform:scale(1.06)}.video-modal-backdrop{z-index:2000;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#040814e6;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.video-modal-box{background:#0d1117;border:1px solid #ffffff12;border-radius:8px;flex-direction:column;width:min(1160px,96vw);max-height:88vh;display:flex;overflow:hidden;box-shadow:0 36px 96px #000000bf}.video-modal-header{background:#ffffff08;border-bottom:1px solid #ffffff12;flex:none;align-items:center;gap:12px;padding:15px 20px;display:flex}.video-modal-badge{border-radius:3px;flex:none;width:5px;height:22px}.video-modal-header h2{color:#fff;letter-spacing:.3px;flex:1;margin:0;font-size:16px;font-weight:800}.video-modal-count{color:#ffffff57;margin-right:8px;font-size:12px}.video-modal-close{color:#ffffffa6;cursor:pointer;background:#ffffff14;border:0;border-radius:50%;flex:none;justify-content:center;align-items:center;width:32px;height:32px;font-size:18px;line-height:1;display:flex}.video-modal-body{flex:1;min-height:0;display:flex;overflow:hidden}.video-modal-main{flex-direction:column;flex:1 1 0;min-width:0;display:flex}.video-modal-player{background:#000;flex:none;width:100%;padding-top:56.25%;position:relative}.video-modal-player video{border:0;width:100%;height:100%;position:absolute;inset:0}.video-modal-now{background:#ffffff05;border-top:1px solid #ffffff0f;flex:none;padding:12px 18px 14px}.video-modal-now span{letter-spacing:1.5px;font-size:10px;font-weight:800;display:block}.video-modal-now strong{color:#fff;text-overflow:ellipsis;white-space:nowrap;margin-top:5px;font-size:14px;font-weight:700;display:block;overflow:hidden}.video-modal-empty{text-align:center;place-content:center;min-height:360px;padding:40px;display:grid}.video-modal-empty p{color:#fff;margin:0;font-size:24px;font-weight:800}.video-modal-empty span{color:#ffffff80;margin-top:8px;font-size:14px}.video-playlist{background:#00000040;border-left:1px solid #ffffff12;flex-direction:column;flex:none;width:290px;display:flex;overflow:hidden}.playlist-header{color:#ffffff52;letter-spacing:1.8px;border-bottom:1px solid #ffffff0f;flex:none;padding:12px 16px 10px;font-size:10px;font-weight:800}.playlist-list{flex:1;overflow-y:auto}.playlist-item{width:100%;color:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-bottom:1px solid #ffffff0a;align-items:center;gap:10px;padding:10px 14px;display:flex;position:relative}.playlist-item:hover{background:#ffffff0d}.playlist-item.active{background:color-mix(in srgb, var(--zone-color) 18%, transparent)}.playlist-item.active:before{content:"";background:var(--zone-color);width:3px;position:absolute;top:0;bottom:0;left:0}.playlist-num{color:#ffffff40;text-align:center;flex:none;width:18px;font-size:11px;font-weight:800}.playlist-item.active .playlist-num{color:var(--zone-color)}.playlist-thumb{background:#1a1e2e;border-radius:6px;flex:none;width:76px;height:44px;position:relative;overflow:hidden}.playlist-thumb img{object-fit:cover;width:100%;height:100%;display:block}.playlist-thumb-overlay{color:#fff;opacity:0;background:#00000052;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.playlist-item:hover .playlist-thumb-overlay,.playlist-item.active .playlist-thumb-overlay{opacity:1}.playlist-thumb-overlay svg{width:16px;height:16px}.playlist-info{flex:1;min-width:0}.playlist-info strong{color:#ffffffb3;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:700;line-height:1.4;display:block;overflow:hidden}.playlist-item.active .playlist-info strong{color:#fff}.playlist-info small{color:#ffffff52;margin-top:3px;font-size:11px;display:block}.playlist-empty{color:#ffffff73;text-align:center;margin:0;padding:20px;font-size:13px}.playlist-foot{color:#fff6;text-align:center;margin:0;padding:14px;font-size:12px}.register-section{background:linear-gradient(135deg,#e4f0ff 0%,#ede8ff 100%);padding:92px clamp(24px,5vw,60px)}.register-inner{text-align:center;max-width:700px;margin:0 auto}.register-title-en,.register-title-cn{margin:0}.register-title-en img{width:auto;height:clamp(44px,5.5vw,80px);display:inline-block}.register-title-cn{color:var(--text-dark);margin-top:8px;font-size:clamp(20px,2.4vw,30px);font-weight:800}.register-email{margin-top:32px}.register-email span{color:var(--text-gray);letter-spacing:.5px;font-size:15px}.register-email a{color:var(--blue);letter-spacing:1px;margin-top:10px;font-size:clamp(15px,1.8vw,22px);display:block}.site-footer{color:#ffffff73;text-align:center;background:#101828;padding:28px 24px}.site-footer p{margin:5px 0 0;font-size:12px;line-height:1.8}.site-footer .footer-small{opacity:.7;font-size:11px}@keyframes gradient-shift{to{background-position:200%}}@keyframes fade-up{to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(8px)}}@media (width<=1023px){.video-grid{grid-template-columns:1fr 1fr;height:auto}.video-grid>.video-card{height:500px}.video-col-mid .video-card:first-child{flex:0 0 190px}.video-col-right{flex-direction:row;grid-column:1/-1;height:220px}}@media (width<=700px){.navbar{height:58px;padding:0 16px}.nav-logo img{height:30px}.hero-slide{top:58px}.hero-content{padding:calc(58px + 13vh) 20px 0}.hero-title-en img{height:clamp(68px,22vw,118px)}.hero-content h2{font-size:clamp(42px,14vw,60px)}.hero-content p{font-size:18px}.scroll-indicator{bottom:24px;right:24px}.explore-section{padding-top:66px}.filter-wrap{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:26px;display:grid}.tag{min-width:0;min-height:48px;box-shadow:none;gap:7px;padding:7px 12px}.tag:hover{transform:none}.tag.active{transform:translateY(-2px);box-shadow:0 6px 16px #1f293729}.tag-text span{white-space:nowrap;font-size:12px}.tag-text small{white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:8px;line-height:1.15;overflow:hidden}.video-grid{grid-template-columns:1fr;gap:10px}.video-grid>.video-card{height:220px}.video-col,.video-col-right{flex-direction:column;gap:10px;height:auto}.video-col-mid .video-card:first-child{flex:0 0 180px}.video-col-mid .video-card:last-child,.video-col-right .video-card{flex:0 0 210px}.site-footer p{max-width:320px;margin-left:auto;margin-right:auto}.video-modal-backdrop{padding:12px}.video-modal-box{width:min(100%,720px);max-height:92vh}.video-modal-body{flex-direction:column}.video-playlist{border-top:1px solid #ffffff12;border-left:0;width:100%;max-height:230px}.video-modal-count{display:none}}.particles{pointer-events:none;position:absolute;inset:0;overflow:hidden}.particle{background:#ffffff8c;border-radius:50%;animation:linear infinite floatUp;position:absolute}@keyframes floatUp{0%{opacity:0;transform:translateY(100vh)scale(0)}5%{opacity:.8}90%{opacity:.3}to{opacity:0;transform:translateY(-80px)scale(1)}}.reveal{opacity:0;transition:opacity .75s cubic-bezier(.22,1,.36,1),transform .75s cubic-bezier(.22,1,.36,1);transform:translateY(44px)}.reveal.visible{opacity:1;transform:translateY(0)}.delay-1{transition-delay:.1s}.delay-2{transition-delay:.2s}.delay-3{transition-delay:.3s}.delay-4{transition-delay:.4s}.delay-5{transition-delay:.5s}.navbar.solid{background:#fffffff5;box-shadow:0 2px 32px #0000001f}