:root{color-scheme:light;--paper:#edf4f3;--ink:#173642;--muted:#607c83;--teal:#0c787d;--border:#d9e6e3;--card:#fff;--mint:#d5e9e0;--yellow:#ecd677;--orange:#e8a188}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer;touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--teal);outline-offset:4px}button:hover{filter:brightness(.96)}[hidden]{display:none!important}.page{width:min(1160px,100% - 64px);margin:auto}.header{display:flex;align-items:center;justify-content:space-between;padding:30px 0}.brand{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:750;letter-spacing:-.5px}.brand small{display:block;font-size:11px;font-weight:500;letter-spacing:3px;color:var(--muted);margin-top:2px}.cat-mark{width:43px;height:43px;border-radius:13px;background:var(--teal);position:relative;display:flex;align-items:center;justify-content:center;gap:9px;transform:rotate(-6deg)}.cat-mark:before,.cat-mark:after{content:"";position:absolute;top:9px;width:10px;height:12px;background:var(--paper);clip-path:polygon(0 0,100% 100%,0 100%)}.cat-mark:before{left:8px}.cat-mark:after{right:8px;transform:scaleX(-1)}.cat-mark i{width:5px;height:7px;border-radius:3px;background:var(--paper);margin-top:9px}.header-link{font-size:13px;color:var(--muted)}.header-link span{margin-left:8px}.hero{display:grid;grid-template-columns:1.06fr 1fr;align-items:center;padding:55px 0 70px;gap:40px}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--muted);display:flex;align-items:center;gap:8px;margin:0 0 24px}.eyebrow span{width:7px;height:7px;background:var(--teal);border-radius:50%}.hero h1{font-family:ui-rounded,"SF Pro Rounded","PingFang SC",sans-serif;font-size:clamp(54px,6vw,78px);letter-spacing:-4px;line-height:1.16;margin:0;font-weight:750}.hero h1 em{font-style:normal;color:var(--teal)}.hero-description{font-size:16px;line-height:1.9;color:var(--muted);margin:26px 0 24px}.hero-link{display:inline-flex;gap:27px;align-items:center;font-size:13px;font-weight:650;padding:13px 18px;border:1px solid #c5d9d5;border-radius:30px;background:#ffffff4d}.hero-art{position:relative;width:420px;height:340px;margin-left:auto;margin-right:25px}.tile{position:absolute;width:160px;height:160px;box-shadow:0 15px 0 -7px #28484612,0 25px 40px #29464012;border:1px solid #ffffff80;border-radius:32px;display:flex;flex-direction:column;justify-content:center;align-items:center;transition:transform .3s}.tile small{font-size:11px;font-weight:600;letter-spacing:1px}.tile-room{top:8px;left:38px;transform:rotate(-11deg);background:#d0e5dc;color:#327365}.tile-room>span{font-size:66px;line-height:1.3}.tile-math{top:26px;right:10px;transform:rotate(10deg);background:#e9d374;color:#60521c;z-index:2}.tile-math>span{font-size:39px;font-weight:750;letter-spacing:-2px;padding-bottom:17px}.tile-math>span>span{font-size:23px;padding:0 5px}.tile-train{bottom:2px;left:16px;transform:rotate(5deg);background:#e29c85;color:#70382c;z-index:3;flex-direction:row;gap:5px;padding-bottom:23px}.train-window{width:35px;height:46px;border-radius:12px 12px 7px 7px;background:#fcdbcc;border:1.5px solid #bd7964;position:absolute;top:28px}.train-window:nth-child(1){left:33px}.train-window:nth-child(2){right:33px}.tile-train strong{font-size:22px;position:absolute;top:86px;left:35px;font-style:italic}.tile-train small{position:absolute;bottom:25px;left:34px;font-size:10px}.tile-image{bottom:13px;right:17px;transform:rotate(-8deg);background:#adc9df;color:#3e6680;z-index:1}.tile-image>span{font-size:75px;line-height:1.1;padding-bottom:9px}.hero-art:hover .tile-room{transform:rotate(-14deg) translateY(-4px)}.hero-art:hover .tile-math{transform:rotate(13deg) translateY(-4px)}.applications{padding-top:29px;border-top:1px solid var(--border);scroll-margin-top:25px}.section-top{display:flex;align-items:end;justify-content:space-between;gap:25px}.section-kicker{font-size:12px;color:var(--muted);margin:0 0 9px}.section-top h2{margin:0;font-size:27px;letter-spacing:-1px;font-weight:650}.app-count{font-size:13px;display:inline-flex;vertical-align:middle;justify-content:center;align-items:center;min-width:25px;height:25px;border-radius:50%;background:#dce9e5;color:var(--muted);margin-left:5px}.search{display:flex;align-items:center;gap:10px;width:250px;height:43px;border:1px solid #d4e1dd;border-radius:13px;background:#ffffff88;padding:0 14px}.search svg{width:18px;height:18px;color:var(--muted);flex:none}.search input{outline:0;border:0;background:transparent;width:100%;font-size:13px;color:var(--ink);min-width:0}.search input::placeholder{color:#80978e}.filters{display:flex;gap:7px;margin:22px 0}.filters button{padding:9px 17px;border:1px solid transparent;border-radius:25px;background:transparent;color:var(--muted);font-size:12px}.filters button.selected{background:var(--ink);color:#fff}.app-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.app-card{background:var(--card);border-radius:23px;border:1px solid #dce7e4;overflow:hidden;transition:box-shadow .2s,transform .2s}.app-card:hover{box-shadow:0 14px 30px #213c4510;transform:translateY(-3px)}.cover-link{display:block;position:relative;padding:18px 18px 0;background:#e9f0ee;height:255px;overflow:hidden}.cover-link img{width:100%;height:100%;display:block;object-fit:cover;object-position:center;border-radius:13px 13px 0 0;box-shadow:0 2px 14px #243c3e15;background:#d4dfda}.cover-category{position:absolute;top:31px;left:31px;background:#fffffff0;backdrop-filter:blur(8px);border-radius:7px;padding:6px 10px;font-size:10px;color:#425e61}.card-body{padding:23px 24px 20px}.app-heading{display:flex;align-items:center;gap:11px}.app-heading h2{font-size:19px;letter-spacing:-.4px;margin:0;font-weight:650}.app-icon{width:35px;height:35px;display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:750;border-radius:11px;background:#dcebe5;color:#327365}.icon-number-split{background:#f0e3a4;color:#6d5c24}.icon-fuxing-3d{background:#f0d2c6;color:#974d37;font-style:italic;font-size:14px}.icon-image-studio{background:#d7e6f2;color:#4a7189;font-size:24px}.description{font-size:13px;color:var(--muted);line-height:1.85;margin:13px 0 20px;min-height:48px}.card-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #eef2ef;padding-top:16px;gap:12px}.card-footer>span{font-size:10px;color:#8b9e9b}.card-footer a{font-size:12px;font-weight:650;color:var(--teal)}.card-footer a span{margin-left:9px}.closing{display:flex;gap:19px;align-items:center;margin:53px 0 35px;border-top:1px solid var(--border);padding-top:30px}.closing-mark{font-size:32px;color:var(--teal)}.closing h2{font-size:16px;margin:0 0 7px;font-weight:600}.closing p{font-size:12px;color:var(--muted);margin:0}.closing>a{margin-left:auto;width:38px;height:38px;border:1px solid #d0dfd9;border-radius:50%;display:grid;place-items:center;color:var(--teal)}footer{display:flex;justify-content:space-between;border-top:1px solid var(--border);padding:20px 0 29px;color:#859994;font-size:10px;gap:14px}footer div{display:flex;gap:20px}.empty{text-align:center;padding:40px;color:var(--muted);border:1px dashed var(--border);border-radius:16px}.empty button{border:0;background:var(--teal);color:white;padding:11px 18px;border-radius:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
@media(max-width:850px){.page{width:calc(100% - 38px)}.header{padding:22px 0}.hero{padding:28px 0 38px;gap:0}.hero h1{font-size:56px}.hero-art{width:290px;height:290px;margin-right:0;transform:scale(.8);transform-origin:right center}.tile-room{left:-12px;top:0}.tile-math{right:-12px;top:10px}.tile-train{left:-35px;bottom:-17px}.tile-image{right:-15px;bottom:-22px}.hero-description{font-size:13px}.cover-link{height:210px}.card-body{padding:20px}.description{font-size:12px}.card-footer>span{font-size:9px}}
@media(max-width:590px){.header{padding:22px 0 14px}.brand{font-size:18px;gap:9px}.brand small{font-size:10px;letter-spacing:2px}.cat-mark{width:36px;height:36px;border-radius:11px}.header-link{font-size:11px}.hero{display:block;position:relative;padding:30px 0 34px;min-height:346px}.hero-copy{position:relative;z-index:2}.eyebrow{font-size:10px;margin-bottom:17px;letter-spacing:1px}.hero h1{font-size:51px;letter-spacing:-3px;line-height:1.18}.hero-description{font-size:12px;max-width:210px;line-height:1.9;margin:20px 0 19px}.hero-link{font-size:11px;gap:18px;padding:11px 15px}.hero-art{position:absolute;width:330px;height:320px;right:-9px;top:11px;transform:scale(.5);transform-origin:right center;z-index:1;opacity:.95}.tile-room{left:-8px}.tile-train{left:-31px;bottom:-2px}.tile-image{bottom:4px}.tile-math{right:4px}.applications{padding-top:23px}.section-top{display:block}.section-top h2{font-size:23px}.section-kicker{font-size:11px}.search{width:100%;height:44px;margin-top:18px}.filters{margin:15px 0 20px;gap:4px;flex-wrap:wrap}.filters button{font-size:11px;padding:9px 14px}.app-grid{grid-template-columns:1fr;gap:19px}.app-card{border-radius:20px}.cover-link{height:222px;padding:13px 13px 0}.cover-category{top:24px;left:24px}.card-body{padding:19px 19px 18px}.app-heading h2{font-size:18px}.description{font-size:12px;min-height:0;margin:12px 0 18px}.card-footer a{font-size:12px}.closing{gap:12px;margin:34px 0 24px;padding-top:24px}.closing h2{font-size:12px}.closing p{font-size:10px}.closing-mark{font-size:25px}.closing>a{width:32px;height:32px;flex:none}footer{display:block;font-size:10px;line-height:1.9}footer div{margin-top:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

.app-icon{width:48px;height:48px;border-radius:14px;object-fit:cover;flex:none}.tile{overflow:hidden;padding:0}.tile>img{width:100%;height:100%;object-fit:cover}.tile small{position:absolute;bottom:9px;left:12px;right:12px;background:#fffdf0e8;color:#274349;padding:6px 3px;border-radius:8px;text-align:center;font-size:10px;letter-spacing:0;backdrop-filter:blur(6px)}

@media(max-width:590px){.hero-art{right:-2px;transform:scale(.42)}.hero-description{max-width:190px}}