:root{--paper:#090f24;--ink:#eef3ff;--line:#b3c9ed26;--gold:#e8c88e}
body{background-color:#090f24;background-image:radial-gradient(ellipse at 75% 2%,#233e7b55,transparent 28%),radial-gradient(ellipse at 5% 40%,#3046651f,transparent 32%),url('assets/stars.svg');background-size:100% 2500px,100% 3000px,780px 640px}
#cosmic-dust{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:3;opacity:.86}.pointer-aura{position:fixed;left:0;top:0;width:650px;height:650px;border-radius:50%;background:radial-gradient(circle,#4a70d210,transparent 65%);pointer-events:none;z-index:4;translate:-1000px -1000px}.reading-progress{position:fixed;top:0;left:0;height:2px;width:100%;transform:scaleX(0);transform-origin:left;background:linear-gradient(90deg,#a5c7fa,#edcc94);z-index:50;box-shadow:0 0 12px #e6c48288}.header{background:#090f24c9;border-bottom-color:#c0d0e919}.header-inner{height:104px}.brand-name{background:linear-gradient(115deg,#fff 25%,#c6d8f5 55%,#fff 80%);background-clip:text;color:transparent}.brand-dot{color:#efd5a3;filter:drop-shadow(0 0 10px #cdb17d40)}.hero{padding-top:65px;padding-bottom:65px;grid-template-columns:1.07fr 1fr;gap:28px;min-height:760px}.hero:before{opacity:.32;background-image:linear-gradient(90deg,#090f2488 0%,#090f24eb 43%,#090f2444 100%),url('assets/alphabet-pattern.svg');mask-image:linear-gradient(transparent,#000 15%,#000 80%,transparent)}.hero:after{display:none}.hero h1{font-weight:500;font-size:clamp(44px,4.6vw,68px);letter-spacing:-3px;line-height:1.11}.world-word{background:linear-gradient(115deg,#f6e5bf,#d7ae6a 45%,#f3dfb1 80%);background-clip:text;color:transparent;text-shadow:0 4px 30px #e2bd7410}.hero-intro{font-size:18px;color:#dce6f7}.hero-detail{font-size:13px;line-height:1.9;color:#a4b7d6}.hero-edition{display:flex;align-items:center;gap:11px;font-size:6px;letter-spacing:1.3px;color:#c8ad7e;margin:27px 0}.edition-line{width:32px;height:1px;background:linear-gradient(90deg,#d8b98180,transparent)}.button{position:relative;overflow:hidden;border-radius:3px}.button:before{content:'';position:absolute;inset:-100% -40%;background:linear-gradient(110deg,transparent 35%,#fff6 50%,transparent 65%);transform:translateX(-100%) skewX(-15deg);transition:transform .8s}.button:hover:before{transform:translateX(100%) skewX(-15deg)}.button-blue{background:linear-gradient(115deg,#ead1a1,#cfac70 55%,#e9ce9b);box-shadow:0 7px 35px #b893501f,inset 0 1px 0 #fff6}.hero-actions>.text-link{color:#c8d6ec}.hero-note{margin-top:31px}.hero-art{max-width:650px;align-self:center;transform:none!important;position:relative;min-width:0}.art-caption{font-size:8px;letter-spacing:2px;color:#a9bedf;padding:0 15px 0}.art-window{aspect-ratio:1;overflow:visible;border:0;border-radius:50%;background:transparent;box-shadow:none;margin-top:0}.world-art{border-radius:50%;opacity:.9}.planet-halo{position:absolute;width:72%;aspect-ratio:1;left:14%;top:14%;border-radius:50%;background:radial-gradient(circle,#486fcf27,#263d9f1a 45%,transparent 70%);filter:blur(20px);z-index:-1}#planet-stage{position:absolute;inset:-9%;z-index:1;touch-action:pan-y;cursor:grab}#planet-stage:active{cursor:grabbing}#planet-stage canvas{display:block;width:100%;height:100%;touch-action:pan-y}.scene-ready .world-art,.scene-ready .hello-bubble,.scene-ready .nihao-bubble,.scene-ready .art-bottom,.scene-ready .art-coordinates{opacity:0;visibility:hidden}.hero-art .round-stamp{width:76px;height:76px;left:4%;bottom:125px;z-index:2;background:#101a30cc;backdrop-filter:blur(14px);border-color:#e1c4925e;color:#e8ce9e;outline:0;box-shadow:0 0 40px #e6c27e0c;font-size:6px;pointer-events:none}.hero-art .round-stamp b{font-size:29px}.scene-greeting{text-align:center;font-family:Georgia,serif;font-size:34px;letter-spacing:-.8px;font-style:italic;color:#e9d7b3;margin-top:-15px;position:relative;z-index:2;text-shadow:0 0 30px #c4a57322}.scene-controls{display:flex;justify-content:center;gap:15px;align-items:center;margin-top:18px;position:relative;z-index:5}.scene-controls[hidden]{display:none}.scene-language{display:flex;gap:3px;padding:4px;border:1px solid #acc5eb30;border-radius:30px;background:#0b142abb;backdrop-filter:blur(12px)}.scene-language button{border:0;background:transparent;color:#a1b6d7;font-size:8px;letter-spacing:1.2px;border-radius:20px;padding:8px 16px;min-height:34px;transition:background .3s,color .3s}.scene-language button[aria-pressed=true]{background:#e2c38f;color:#17233b;box-shadow:0 2px 15px #d6b67b17}.orbit-control{width:42px;height:42px;border-radius:50%;border:1px solid #acc5eb30;background:#0b142abb;font-size:23px;color:#e5c995;line-height:1;transition:background .2s,transform .4s}.orbit-control:hover{background:#31466b;transform:rotate(30deg)}.art-foot{justify-content:center;gap:17px;color:#8aa3c9;letter-spacing:1.2px;font-size:5.5px;margin-top:12px}.art-foot>span:last-child{display:none}.promise-strip{background:linear-gradient(90deg,#070d1d66,#1a2a4666,#070d1d66);border-color:#abc6ee20}.promise-strip i{filter:drop-shadow(0 0 10px #f4cc8060)}.section{padding-block:115px}.section-heading h2,h2{font-weight:400}.section-heading .eyebrow{color:#b7a47f}.language-grid{gap:28px;perspective:1400px}.language-card{background:radial-gradient(ellipse at var(--shine-x,20%) var(--shine-y,0%),#668ec333,transparent 65%),linear-gradient(145deg,#1a2b49bb,#0f192ddd);border:1px solid #adc9f243;border-radius:16px;padding:34px 35px 25px;transform:perspective(1200px) rotateX(var(--tilt-x,0deg)) rotateY(var(--tilt-y,0deg));transition:transform .35s,border-color .35s,box-shadow .35s;transform-style:preserve-3d;box-shadow:0 20px 55px #0106144d,inset 0 1px #ffffff0c;isolation:isolate}.language-card:before{content:'';position:absolute;width:230px;height:230px;right:-90px;top:-100px;border:1px solid #b2c9ef20;border-radius:50%;box-shadow:0 0 0 25px #b2c9ef05,0 0 0 65px #b2c9ef04;pointer-events:none}.language-card:after{content:'';position:absolute;width:2px;height:80px;right:-1px;top:40%;background:linear-gradient(transparent,#d1e2ff,transparent);opacity:.5;pointer-events:none}.language-card:hover{border-color:#b4cff477;box-shadow:0 25px 70px #01061460,0 0 30px #92b8f00a}.language-card.chinese{background:radial-gradient(ellipse at var(--shine-x,80%) var(--shine-y,0%),#d1ae7030,transparent 65%),linear-gradient(145deg,#2c2b33c9,#171c2c)}.language-card .language-display{font-size:98px;margin-block:16px 20px;text-shadow:0 5px 35px #accbff20}.language-card .chinese-display{font-size:83px}.language-card .card-top{font-size:8px}.language-card h3{font-size:20px}.language-card p{font-size:13px;line-height:1.9}.language-card .card-bottom{margin-top:27px;padding-top:21px}.language-tag{border-radius:20px;padding:5px 12px;letter-spacing:1px}.language-display svg{stroke-width:3;filter:drop-shadow(0 0 10px #d1b67b35)}.circle-link{width:44px;height:44px}.discovery-section{position:relative;isolation:isolate;overflow:hidden;padding-top:65px;background:radial-gradient(ellipse at 60% 45%,#263d6a2e,transparent 65%),linear-gradient(#0d142600,#0c1529aa);border-bottom:1px solid #b5cff01a}.discovery-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:75px;align-items:center;position:relative;z-index:1}.discovery-copy .eyebrow{font-size:8px;color:#c1aa7f}.discovery-copy h2{font-size:48px}.discovery-copy>p:not(.eyebrow){font-size:14px;line-height:1.9;color:#aebfda;margin-top:25px}.discovery-instruction{display:flex;align-items:center;gap:10px;font-size:9px;color:#d4be95;margin-top:30px}.discovery-instruction>span{font-size:25px}.discovery-orbit{position:absolute;width:1000px;height:1000px;border:1px solid #a6c4f017;top:-400px;right:-100px;border-radius:50%;transform:rotateX(55deg) rotateZ(-20deg);box-shadow:0 0 0 60px #a6c4f004,0 0 0 130px #a6c4f003;pointer-events:none}.word-cards{display:flex;gap:20px;perspective:1600px;padding:35px 0 65px}.word-card{width:50%;height:310px;background:none;border:0;padding:0;position:relative;perspective:1200px;transform:rotate(-6deg) translateY(-8px);transition:transform .4s;border-radius:16px;text-align:left}.word-card-zh{transform:rotate(8deg) translateY(32px)}.word-card:hover{transform:rotate(-3deg) translateY(-18px)}.word-card-zh:hover{transform:rotate(4deg) translateY(18px)}.word-card-inner{display:block;width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .8s cubic-bezier(.2,.7,.2,1)}.word-card[aria-expanded=true] .word-card-inner{transform:rotateY(180deg)}.word-face{display:flex;flex-direction:column;position:absolute;inset:0;border:1px solid #adc9ef5e;border-radius:16px;padding:25px 23px;backface-visibility:hidden;background:linear-gradient(135deg,#304669,#182942 70%,#1b2d4e);box-shadow:0 20px 45px #0004,inset 0 1px #ffffff24;color:#d9e6fb;overflow:hidden}.word-face:after{content:'✧';font-size:190px;color:#b4cff20a;position:absolute;right:-30px;bottom:-30px;pointer-events:none}.word-card-zh .word-face{border-color:#e0bd7c7a;background:linear-gradient(135deg,#594a35,#2e3037 65%,#40392e);color:#ebd0a3}.word-tag{font-size:7px;letter-spacing:1.6px}.word-symbol{font-size:63px;line-height:1.2;font-family:Georgia,serif;letter-spacing:-3px;margin-top:45px;position:relative;z-index:1}.word-symbol>span{color:#dec28f}.word-card-zh .word-symbol{font-size:57px}.word-bottom{font-size:6px;letter-spacing:.6px;display:flex;gap:10px;justify-content:space-between;align-items:center;margin-top:auto}.word-bottom b{font-size:20px;font-weight:400}.word-back{transform:rotateY(180deg);background:linear-gradient(135deg,#d5e3f8,#a8bcda);color:#1a3155}.word-card-zh .word-back{background:linear-gradient(135deg,#efdab2,#c5a576);color:#302c24}.word-translation{font-size:37px;font-family:Georgia,serif;margin-top:39px;letter-spacing:-1px}.word-explanation{font-size:12px;margin-top:15px;line-height:1.7}.universe-marquee{overflow:hidden;border-top:1px solid #adc9ef1f;padding-block:31px;margin-top:38px;mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);pointer-events:none}.universe-marquee>div{display:flex;width:max-content;animation:word-travel 50s linear infinite}.universe-marquee span{white-space:nowrap;font-size:68px;letter-spacing:-2px;font-family:Georgia,serif;color:transparent;-webkit-text-stroke:1px #a9bed538;font-weight:400;padding-right:20px}.teacher-section{background:#101e33db}.teacher-photo-wrap{isolation:isolate;perspective:1300px}.teacher-photo-wrap:before{content:'';position:absolute;inset:-15px;border:1px solid #d8bd8655;border-radius:180px 180px 8px 8px;z-index:-1;transform:rotate(-4deg);background:linear-gradient(145deg,#b2caed08,transparent)}.teacher-photo-wrap:after{content:'✧';position:absolute;top:20px;right:-45px;color:#ebce92;font-size:65px;text-shadow:0 0 25px #d4af6750}.teacher-photo-wrap>img{border:1px solid #e0be7c38;box-shadow:0 20px 65px #0005;filter:saturate(.88)}.experience-sticker{background:linear-gradient(125deg,#f4dfb3,#cfaa6e);box-shadow:0 14px 35px #0004,inset 0 1px #fff9;border:1px solid #e7ca974d;transform:rotate(8deg) translateZ(45px)}.teacher-copy .body-large{color:#d9e4f6}.teacher-fullname{letter-spacing:1px}.format-grid article{border-color:#b6cbed30}.format-grid article:before{content:'';height:1px;width:50px;background:linear-gradient(90deg,#e4c28a,transparent);position:absolute;top:-1px;left:0}.format-icon{filter:drop-shadow(0 0 20px #9bbdf330)}.space-section{background:#112039c9}.classroom-photo{background:linear-gradient(135deg,#d8e3f4,#adbfda);box-shadow:0 25px 70px #0005;border-radius:3px}.space-copy h2{font-size:46px}.contacts{background:radial-gradient(ellipse at 50% 80%,#27476e66,transparent 70%),linear-gradient(125deg,#112445bb,#142b4fcc);border-block-color:#d0b67e40;padding-block:92px}.contacts:before{content:'';display:block;width:120px;height:1px;background:linear-gradient(90deg,transparent,#e6c68c,transparent);margin:-92px auto 90px}.contact-heading h2>span{animation:star-turn 25s linear infinite}.big-phone{color:#f0dfbd;text-shadow:0 3px 25px #d3af6320}.effects-toggle{background:#111d32;border:1px solid #acc6ed3d;color:#c4d1e6;border-radius:30px;font-size:9px;padding:9px 12px;display:flex;gap:7px;align-items:center;white-space:nowrap}.effects-toggle[aria-pressed=false]{color:#9eafc7}.footer{gap:25px}.effects-paused *,.effects-paused *:before,.effects-paused *:after{animation-play-state:paused!important}.effects-paused .pointer-aura{display:none}
@keyframes word-travel{to{transform:translateX(-50%)}}@keyframes star-turn{to{transform:rotate(360deg)}}
@media(min-width:1450px){.hero{min-height:830px}.hero h1{font-size:73px}.hero-art{margin-right:-20px;max-width:680px}.hero-intro{font-size:21px}}
@media(max-width:1100px){.hero{min-height:680px;padding-block:55px}.hero h1{font-size:49px;letter-spacing:-2.3px}.hero-intro{font-size:16px}.hero-detail{font-size:12px}.scene-greeting{font-size:28px}.hero-art .round-stamp{left:0;bottom:120px;width:65px;height:65px;font-size:5px}.hero-art .round-stamp b{font-size:25px}.language-card{padding:27px}.language-card .language-display{font-size:84px}.language-card .chinese-display{font-size:73px}.language-card p{font-size:12px}.discovery-grid{gap:40px}.discovery-copy h2{font-size:39px}.word-cards{gap:15px}.word-card{height:280px}.word-face{padding:23px 18px}.word-symbol{font-size:49px}.word-card-zh .word-symbol{font-size:47px}.word-tag{font-size:6px}.word-bottom{font-size:5px}.word-translation{font-size:31px}.word-explanation{font-size:11px}.space-copy h2{font-size:39px}.footer{gap:18px}}
@media(max-width:800px){.header-inner{height:82px}.hero{min-height:600px;gap:10px;grid-template-columns:1.1fr 1fr}.hero h1{font-size:40px;letter-spacing:-1.8px}.hero-intro{font-size:14px}.hero-detail{font-size:11px}.hero-edition{font-size:5px;letter-spacing:.8px;gap:8px}.edition-line{width:20px}.hero-art .art-caption{font-size:5px;letter-spacing:1px}.scene-greeting{font-size:24px}.scene-controls{gap:8px;margin-top:12px}.scene-language button{padding:6px 10px;font-size:7px}.orbit-control{width:36px;height:36px;font-size:20px}.hero-art .round-stamp{display:none}.section{padding-block:80px}.language-card{padding:24px}.language-card .language-display{font-size:72px}.language-card .chinese-display{font-size:61px}.language-card h3{font-size:17px}.language-card p{font-size:11px}.discovery-grid{grid-template-columns:.9fr 1.1fr;gap:25px}.discovery-copy h2{font-size:32px}.discovery-copy>p:not(.eyebrow){font-size:12px}.discovery-copy .eyebrow{font-size:6px}.discovery-instruction{font-size:8px;gap:6px}.word-card{height:250px}.word-face{padding:20px 14px}.word-symbol{font-size:42px}.word-card-zh .word-symbol{font-size:39px}.word-bottom{font-size:4px;gap:2px;letter-spacing:.2px}.word-tag{font-size:5px;letter-spacing:1px}.word-translation{font-size:26px}.word-explanation{font-size:10px}.universe-marquee span{font-size:56px}.space-copy h2{font-size:34px}.footer>span{display:none}.pointer-aura{display:none}.contacts{padding-block:65px}.contacts:before{margin:-65px auto 63px}}
@media(max-width:600px){.hero{min-height:0;padding-top:42px;padding-bottom:40px;gap:32px}.hero h1{font-size:clamp(35px,10.1vw,57px);letter-spacing:-2px}.hero-intro{font-size:17px}.hero-detail{font-size:12px}.hero .eyebrow{font-size:8px}.hero-edition{font-size:5.5px;gap:10px;margin:24px 0}.hero-art{width:100%;margin:0;max-width:470px}.art-window{aspect-ratio:1;margin-top:6px}.hero-art .art-caption{font-size:7px;letter-spacing:1.5px;padding-inline:15px}.scene-greeting{font-size:32px;margin-top:-8px}.scene-controls{margin-top:16px}.scene-language button{font-size:8px;padding:7px 16px}.orbit-control{width:41px;height:41px;font-size:23px}.art-foot{font-size:5.5px;margin-top:9px}.hero-art .round-stamp{display:flex;width:59px;height:59px;bottom:124px;left:0}.hero-art .round-stamp b{font-size:22px}.hero-art .round-stamp>span{font-size:5px}.hero-note{margin-top:25px}.section{padding-block:65px}.language-grid{gap:20px}.language-card{padding:27px 25px 22px;border-radius:13px}.language-card .language-display{font-size:85px}.language-card .chinese-display{font-size:71px}.language-card h3{font-size:18px}.language-card p{font-size:12px}.language-card .card-bottom{margin-top:24px;padding-top:17px}.discovery-section{padding-top:45px}.discovery-grid{display:block}.discovery-copy h2{font-size:38px;letter-spacing:-1.7px}.discovery-copy .eyebrow{font-size:7px}.discovery-copy>p:not(.eyebrow){font-size:13px;margin-top:21px}.discovery-instruction{font-size:9px;margin-top:20px}.word-cards{padding:48px 6px 54px;gap:16px;max-width:430px;margin:auto}.word-card{height:260px;min-width:0}.word-card-zh{transform:rotate(6deg) translateY(20px)}.word-face{padding:21px 16px;border-radius:13px}.word-symbol{font-size:46px;margin-top:40px}.word-card-zh .word-symbol{font-size:42px}.word-tag{font-size:5px;letter-spacing:1.1px}.word-bottom{font-size:4.5px;line-height:1.7;letter-spacing:.2px;gap:5px}.word-bottom b{font-size:18px;flex-shrink:0}.word-translation{font-size:27px;margin-top:41px}.word-explanation{font-size:10px}.universe-marquee{padding-block:23px;margin-top:12px}.universe-marquee span{font-size:50px}.teacher-photo-wrap:before{inset:-9px;border-radius:150px 150px 6px 6px}.teacher-photo-wrap:after{font-size:44px;right:-22px;top:40px}.teacher-grid{gap:53px}.space-copy h2{font-size:36px}.contacts{padding-block:57px}.contacts:before{margin:-57px auto 55px}.effects-toggle{font-size:8px;padding:8px 11px}.footer>p{font-size:8px}.footer>.effects-toggle{order:3}.footer>.back-top{order:4}.footer{row-gap:24px}.footer-brand .brand-name{font-size:25px}}
@media(max-width:360px){.hero h1{font-size:35px}.hero-edition{font-size:5px;gap:6px}.scene-greeting{font-size:29px}.word-cards{gap:11px;padding-inline:4px}.word-card{height:235px}.word-face{padding:18px 12px}.word-symbol{font-size:38px}.word-card-zh .word-symbol{font-size:35px}.word-translation{font-size:23px}.word-explanation{font-size:9px}.word-bottom{font-size:4px}.discovery-copy h2{font-size:32px}}
.pointer-aura{inset:0;width:auto;height:auto;border-radius:0;background:radial-gradient(450px circle at var(--pointer-x,-1000px) var(--pointer-y,-1000px),#4a70d210,transparent 70%);translate:none}#planet-stage{inset:-18px}#planet-stage,#planet-stage canvas{touch-action:none;user-select:none;-webkit-user-select:none}
.globe-legend{--map-color:#f3cc80;text-align:center;margin:19px auto 0;max-width:410px;position:relative;z-index:5;padding-inline:12px}.globe-legend>p{display:flex;align-items:center;justify-content:center;gap:7px;margin:0;color:#d7e3f5;font-size:9px;line-height:1.7}.map-key{width:6px;height:6px;border-radius:50%;background:var(--map-color);box-shadow:0 0 12px var(--map-color);flex-shrink:0}.globe-legend>span{font-size:8px;line-height:1.8;display:block;color:var(--map-color);margin-top:5px}.globe-legend>small{display:block;color:#8fa5c6;font-size:7px;line-height:1.8;margin-top:8px}.globe-country{position:absolute;left:50%;bottom:5%;translate:-50% 0;padding:7px 13px;border:1px solid #b9d4f149;background:#101b32e8;backdrop-filter:blur(12px);border-radius:20px;z-index:4;color:#f2dbb5;font-size:10px;white-space:nowrap;pointer-events:none}.globe-country[hidden]{display:none}.hero-art .round-stamp{bottom:220px}.hero{min-height:825px}@media(max-width:800px){.globe-legend>p{font-size:8px}.globe-legend>span{font-size:7px}.globe-legend>small{font-size:6px}.hero{min-height:700px}}@media(max-width:600px){.hero{min-height:0}.globe-legend{margin-top:17px;max-width:350px}.globe-legend>p{font-size:9px}.globe-legend>span{font-size:8px}.globe-legend>small{font-size:7px}.hero-art .round-stamp{bottom:218px}.globe-country{font-size:9px}}
@media(prefers-reduced-motion:reduce){.word-card-inner,.word-card,.language-card{transition:none}.pointer-aura{display:none}.universe-marquee>div{animation:none}.contact-heading h2>span{animation:none}}