@font-face{font-family:Geist;src:url("/assets/fonts/geist-variable.woff2") format("woff2");font-weight:100 900;font-display:swap}@font-face{font-family:"Noto Sans SC";src:url("/assets/fonts/noto-sans-sc-100-900-subset.woff2") format("woff2");font-weight:100 900;font-display:swap}
:root{font-family:Geist,"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:#161719;background:#f7f7f2;font-synthesis:none;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}a{color:inherit;text-underline-offset:4px}button,a,input{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid #294ee8;outline-offset:4px}button{cursor:pointer}button:disabled{cursor:default}h1,h2,p{margin-top:0}.purchase-shell{max-width:1120px;margin:auto;padding:0 36px}.purchase-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:96px;border-bottom:1px solid #dcded6}.purchase-brand{font-size:18px;letter-spacing:1px;font-weight:700;text-decoration:none;display:flex;align-items:center;gap:9px}.purchase-brand>span{font-size:37px;line-height:1;font-weight:400}.purchase-back{font-size:12px;color:#656762;text-decoration:none;min-height:44px;display:flex;align-items:center}.purchase-body{padding:34px 0 70px;min-height:70vh}.purchase-steps{display:flex;list-style:none;padding:0;margin:0 0 50px;gap:30px;color:#888b83;font-size:12px}.purchase-steps li{display:flex;align-items:center;gap:8px;white-space:nowrap}.purchase-steps li>span{font-size:10px}.purchase-steps [aria-current]{color:#294ee8;font-weight:600}.purchase-eyebrow{font-size:10px;letter-spacing:2px;color:#74776f;margin-bottom:18px}.purchase-heading h1{font-size:38px;font-weight:550;letter-spacing:-1px;margin-bottom:12px}.purchase-heading>p:not(.purchase-eyebrow){font-size:14px;color:#6b6e65;line-height:1.8}.purchase-heading{margin-bottom:34px}.purchase-login-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:90px;align-items:start}.purchase-intro{padding-top:30px}.purchase-intro h1{font-size:44px;font-weight:550;letter-spacing:-1px;line-height:1.35;margin-bottom:26px}.purchase-lead{font-size:15px;line-height:1.9;color:#62665d}.purchase-mini-product{display:flex;gap:18px;align-items:center;margin:45px 0 24px;padding-top:27px;border-top:1px solid #daddd3}.purchase-mini-art{background:#181a1a;color:#bbbeb3;width:65px;height:84px;border-radius:5px;display:grid;place-items:center;font:38px Georgia,serif;flex-shrink:0}.purchase-mini-product small{font-size:10px;color:#797c72}.purchase-mini-product h2{font-size:19px;font-weight:550;margin:10px 0}.purchase-mini-product p{font-size:12px;color:#72776a;margin-bottom:0}.purchase-panel{background:#fff;border:1px solid #dedfd7;border-radius:12px;padding:30px}.purchase-panel>h2{font-size:20px;font-weight:550;margin:0 0 25px}.purchase-login-tabs{display:flex;gap:20px;border-bottom:1px solid #e6e7df;margin-bottom:24px}.purchase-login-tabs button{background:none;border:0;color:#7d8175;font-size:12px;padding:0 0 14px;min-height:44px;border-bottom:2px solid transparent}.purchase-login-tabs [aria-pressed=true]{color:#171a14;border-color:#171a14}.purchase-field{display:block;font-size:12px;color:#62675b;margin-top:19px}.purchase-field input{display:block;width:100%;min-width:0;background:#fafaf7;border:1px solid #dcded5;border-radius:5px;padding:13px 12px;min-height:46px;color:#20221d;font-size:14px;margin-top:9px}.purchase-field input::placeholder{color:#999d93}.purchase-code-row{display:flex;align-items:end;gap:9px}.purchase-code-row input{flex:1;width:50%}.purchase-code-row button{border:1px solid #d6d9cd;background:#fff;font-size:12px;border-radius:5px;white-space:nowrap;min-height:46px;padding:0 12px}.purchase-code-row button:disabled{color:#999}.purchase-button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:48px;width:100%;padding:13px 18px;border:1px solid transparent;border-radius:5px;font-size:13px;font-weight:500;line-height:1.5;text-decoration:none;transition:background .16s,color .16s}.purchase-button.primary{background:#294ee8;color:white}.purchase-button.secondary{background:transparent;color:#34392d;border-color:#d3d7ca}.purchase-button:disabled{background:#e8eae1;color:#989e8d;border-color:#e8eae1}.purchase-button+.purchase-button{margin-top:12px}.purchase-text-button{display:block;background:none;border:0;padding:12px 0;min-height:44px;font-size:12px;color:#294ee8;text-align:left}.purchase-text-button.small{font-size:11px;min-height:28px;padding:5px 0 0;margin-left:auto}.purchase-fineprint{font-size:11px!important;line-height:1.85;color:#868b7c;margin:14px 0 0;max-width:470px}.purchase-status{font-size:12px;line-height:1.75;min-height:0;color:#294ee8;margin:14px 0;overflow-wrap:anywhere}.purchase-status:empty{margin:0;height:18px}.purchase-status.is-error{color:#a33b25}.purchase-demo{border-top:1px solid #e1e4d8;margin-top:25px;padding-top:20px}.purchase-demo>p{font-size:11px;color:#828976;margin-bottom:13px}.purchase-demo small{display:block;font-size:10px;line-height:1.7;color:#909686}.purchase-footer{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;align-items:center;border-top:1px solid #dcded6;padding:25px 0 32px;font-size:10px;color:#858b7b}.purchase-footer>div{display:flex;gap:20px}.purchase-footer a{text-decoration:none}.purchase-footer small{width:100%;font-size:10px}.purchase-checkout-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:56px;align-items:start}.purchase-product{min-width:0}.purchase-card-art{background:#161719;color:white;padding:30px;min-height:240px;aspect-ratio:1.75;border-radius:9px;position:relative;overflow:hidden;box-shadow:0 14px 28px #13181115}.purchase-card-art>span{font-size:10px;letter-spacing:2px}.purchase-card-art>strong{position:relative;z-index:1;display:block;margin-top:43px;font-size:29px;font-weight:500}.purchase-card-art>small{display:block;margin-top:19px;font-size:8px;letter-spacing:2px;color:#bbb}.purchase-card-art>b{position:absolute;font:190px/1 Georgia,serif;right:-12px;bottom:-35px;color:#ffffff0e}.purchase-product-copy{padding:28px 0}.purchase-product-copy>span{font-size:10px;color:#838779}.purchase-product-copy h2{font-size:24px;font-weight:550;margin:12px 0 19px}.purchase-product-copy p{font-size:13px;line-height:1.85;color:#767c6d}.purchase-product-copy a,.purchase-service a{font-size:12px;color:#294ee8}.purchase-order dl{margin:0}.purchase-order dl>div,.purchase-payment-summary dl>div{display:flex;justify-content:space-between;align-items:start;gap:20px;font-size:12px;margin:0 0 18px}.purchase-order dt,.purchase-payment-summary dt{color:#767d6b;flex-shrink:0}.purchase-order dd,.purchase-payment-summary dd{margin:0;text-align:right;overflow-wrap:anywhere;min-width:0}.purchase-order .purchase-total,.purchase-payment-summary .purchase-total{align-items:center;border-top:1px solid #e0e3d7;padding-top:22px;margin-top:25px}.purchase-total dd{font-size:43px;letter-spacing:-2px}.purchase-total dd small{font-size:18px;letter-spacing:0;margin-right:4px}.purchase-total dd>span{font-size:21px;letter-spacing:-1px}.purchase-consent{display:flex;gap:9px;font-size:11px;line-height:1.85;color:#636b56;margin-top:17px}.purchase-consent input{width:17px;height:17px;margin:2px 0 0;accent-color:#294ee8;flex-shrink:0}.purchase-consent a{color:#414a35}.purchase-service{border-top:1px solid #e1e4d8;margin-top:25px;padding-top:22px;font-size:12px}.purchase-service strong{font-weight:500}.purchase-service p{font-size:11px;color:#858c78;margin:10px 0}.purchase-member{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:60px;align-items:center}.purchase-member h2{font-size:26px;font-weight:550;margin:16px 0}.purchase-member-tag{font-size:10px;border:1px solid #cdd7bf;color:#596a43;border-radius:20px;padding:6px 11px}.purchase-account-line{font-size:12px;color:#7b846e;margin:24px 0;overflow-wrap:anywhere}.purchase-account-line strong{font-weight:400;color:#333b2a;margin-left:10px}.purchase-member .purchase-button{max-width:340px}.purchase-payment-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:70px;align-items:start}.purchase-payment-summary{padding-top:24px}.purchase-payment-summary>span{font-size:11px;color:#828975}.purchase-payment-summary h2{font-size:29px;font-weight:550;margin:14px 0}.purchase-payment-summary>p{color:#737b66;font-size:14px}.purchase-payment-summary dl{margin-top:37px}.purchase-payment-channel{text-align:center;padding:36px 30px}.purchase-provider-mark{display:grid;place-items:center;width:56px;height:56px;margin:0 auto 20px;background:#1677ff;color:#fff;font-size:31px;border-radius:12px}.purchase-payment-channel .purchase-eyebrow{margin-bottom:12px}.purchase-payment-channel h2{font-size:22px;margin:0 0 17px;font-weight:550}.purchase-payment-channel>p:not(.purchase-eyebrow){font-size:13px;line-height:1.9;color:#737d63;margin-bottom:24px}.purchase-payment-channel .purchase-payment-note{font-size:10px!important;margin:22px 0 0!important}.purchase-failure{padding:35px 0;max-width:550px}.purchase-failure h1{font-size:28px;font-weight:500}.purchase-failure>p{font-size:14px;color:#73796a;line-height:1.8}.purchase-failure .purchase-button{max-width:260px}@media(max-width:900px){.purchase-shell{padding:0 28px}.purchase-login-layout{gap:38px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.purchase-intro h1{font-size:35px}.purchase-panel{padding:25px}.purchase-checkout-layout{gap:28px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.purchase-card-art{padding:25px;min-height:220px}.purchase-card-art>strong{font-size:25px}.purchase-card-art>small{font-size:7px;letter-spacing:1px}.purchase-payment-layout{gap:35px;grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.purchase-member{gap:35px}}@media(max-width:640px){.purchase-shell{padding:0 20px}.purchase-header{min-height:78px}.purchase-brand{font-size:15px}.purchase-brand>span{font-size:32px}.purchase-back{font-size:11px}.purchase-body{padding-top:27px;padding-bottom:45px}.purchase-steps{gap:23px;margin-bottom:32px;font-size:11px}.purchase-steps li{gap:6px}.purchase-login-layout,.purchase-checkout-layout,.purchase-member,.purchase-payment-layout{grid-template-columns:1fr;gap:28px}.purchase-intro{padding-top:0}.purchase-intro h1{font-size:32px;line-height:1.4;margin-bottom:17px}.purchase-intro .purchase-lead{font-size:13px;margin-bottom:0}.purchase-mini-product{margin:22px 0 0;padding-top:22px}.purchase-intro>.purchase-fineprint{display:none}.purchase-mini-art{height:63px;width:48px;font-size:30px}.purchase-mini-product h2{font-size:17px;margin:8px 0}.purchase-mini-product p{font-size:11px}.purchase-heading h1{font-size:31px}.purchase-heading>p:not(.purchase-eyebrow){font-size:13px}.purchase-heading{margin-bottom:28px}.purchase-panel{padding:24px 21px}.purchase-card-art{min-height:217px;aspect-ratio:1.65;padding:25px}.purchase-card-art>strong{font-size:28px;margin-top:35px}.purchase-card-art>small{font-size:8px}.purchase-product-copy{padding:24px 0 0}.purchase-product-copy h2{font-size:22px}.purchase-footer{gap:16px;padding-top:22px}.purchase-footer>div{gap:16px}.purchase-member{gap:30px}.purchase-member .purchase-button{max-width:none}.purchase-payment-summary{padding-top:0}.purchase-payment-summary h2{font-size:25px}.purchase-payment-summary dl{margin-top:28px}.purchase-payment-channel{padding:30px 22px}.purchase-payment-channel h2{font-size:21px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Order state is durable; controls retain visible focus and tactile feedback. */
html{-webkit-text-size-adjust:100%}.purchase-shell{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
button,a{touch-action:manipulation}button{user-select:none;-webkit-user-select:none}.purchase-button{transition:background 160ms ease,transform 100ms cubic-bezier(.23,1,.32,1)}[data-purchase-pointer=true] .purchase-button:active:not(:disabled){transform:scale(.98);transition-duration:160ms,140ms}[data-purchase-pointer=false] .purchase-button{transition:none}
.purchase-header-links{display:flex;gap:24px;align-items:center}.purchase-header-links a{white-space:nowrap}.purchase-card-art.is-course{background:#22342f}.purchase-card-art.is-course>strong{font-size:26px;line-height:1.45;max-width:85%;margin-top:32px;overflow-wrap:anywhere}.purchase-card-art.is-course>b{font-size:165px;right:-20px;bottom:-10px}
.purchase-price-pending{font-size:21px!important;letter-spacing:0!important;display:block;line-height:1.5}.purchase-total dd{font-variant-numeric:tabular-nums}.purchase-order-id{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;overflow-wrap:anywhere;font-size:11px!important;line-height:1.7}
.purchase-order-state{display:inline-block;padding:6px 10px;border:1px solid #dfe3d5;background:#f0f3e9;color:#64724b;font-size:10px!important;line-height:1.5;border-radius:4px;letter-spacing:0}.purchase-order-state.is-cancelled{background:#f4f4f0;color:#858a7e;border-color:#e3e5db}.purchase-payment-summary .purchase-order-state{margin-top:10px}.purchase-payment-channel .purchase-text-button{margin:4px auto 0;text-align:center}.purchase-cancel-confirm{border:1px solid #e9d5cb;background:#fcf7f3;padding:14px;border-radius:6px;margin-top:20px}.purchase-cancel-confirm>p{font-size:11px;line-height:1.7;color:#8a715f;margin:0}.purchase-text-button.danger{color:#a24e32}.purchase-orders-heading{display:flex;justify-content:space-between;gap:24px;align-items:center}.purchase-orders-heading h1{margin-bottom:12px}.purchase-orders-heading>div>p:last-child{font-size:12px;line-height:1.8;color:#78806d;overflow-wrap:anywhere}.purchase-orders-heading strong{font-weight:500;color:#414a35}.purchase-orders-heading>.purchase-text-button{flex-shrink:0}.purchase-order-filters{display:flex;gap:24px;margin:0 0 28px;border-bottom:1px solid #dde1d3}.purchase-order-filters a{font-size:12px;text-decoration:none;min-height:44px;padding-bottom:15px;display:flex;align-items:center;color:#7b846c;border-bottom:2px solid transparent}.purchase-order-filters [aria-current]{border-color:#294ee8;color:#294ee8}.purchase-order-list{display:grid;gap:14px}.purchase-order-row{background:#fff;border:1px solid #dedfd7;border-radius:9px;padding:24px 28px;display:flex;justify-content:space-between;gap:30px;align-items:center}.purchase-order-row>div{min-width:0}.purchase-order-row h2{font-size:20px;font-weight:550;margin:14px 0 12px;line-height:1.5;overflow-wrap:anywhere}.purchase-order-row p{font-size:11px;line-height:1.75;color:#838b75;margin:6px 0 0}.purchase-order-row-actions{width:190px;flex-shrink:0;text-align:right}.purchase-order-row-actions>strong{display:block;font-size:20px;font-weight:550;margin-bottom:20px;white-space:nowrap;font-variant-numeric:tabular-nums}.purchase-order-row-actions>.purchase-button{font-size:12px;min-height:44px}.purchase-empty{padding:55px 28px;border:1px dashed #cbd2bd;border-radius:9px;text-align:center}.purchase-empty h2{font-size:21px;font-weight:500}.purchase-empty p{font-size:13px;color:#879177;line-height:1.8}.purchase-empty .purchase-button{max-width:260px;margin:25px auto 0}.purchase-failure>.purchase-button{margin-bottom:12px}
@media(hover:hover) and (pointer:fine){.purchase-button.primary:hover:not(:disabled){background:#193ece}.purchase-button.secondary:hover{background:#f3f4ee}}
@media(pointer:coarse){.purchase-footer a{display:inline-flex;align-items:center;min-height:44px}.purchase-field input{font-size:16px}.purchase-text-button.small{min-height:44px}.purchase-consent{padding:4px 0}}
@media(max-width:640px){.purchase-header-links{gap:18px}.purchase-header{gap:12px}.purchase-header-links a{font-size:10px}.purchase-order-row{padding:22px;display:block}.purchase-order-row-actions{width:100%;display:flex;align-items:center;gap:20px;margin-top:23px;text-align:left}.purchase-order-row-actions>strong{margin:0;font-size:19px;flex:1}.purchase-order-row-actions>.purchase-button{width:auto;font-size:11px;padding:11px 13px;flex-shrink:0}.purchase-orders-heading{gap:15px}.purchase-orders-heading h1{font-size:29px}.purchase-orders-heading>.purchase-text-button{font-size:11px}.purchase-card-art.is-course>strong{font-size:25px;margin-top:30px}.purchase-empty{padding:35px 22px}.purchase-order-state{font-size:10px!important}}
@media(prefers-reduced-motion:reduce){.purchase-button{transition:none}[data-purchase-pointer=true] .purchase-button:active:not(:disabled){transform:none}}

.purchase-loading{max-width:1120px;margin:0 auto;padding:72px 36px;color:#747c68;font-size:14px;line-height:1.8}
.purchase-order-state.is-paid{color:#276049;background:#eef6ef;border-color:#c8ddce}.purchase-order-state.is-checking{color:#80571e;background:#fff7e8;border-color:#e8d6b6}.purchase-payment-channel[data-payment-state=paid] .purchase-provider-mark{background:#2f7459}.purchase-payment-channel .purchase-desktop-note{font-size:11px!important;line-height:1.8;text-align:left;padding:14px 16px;margin:16px 0 22px!important;background:#f7f8f3;border:1px solid #e2e5d9;border-radius:6px;color:#68745c}#purchase-app[aria-busy=true] .purchase-payment-channel{cursor:progress}.purchase-payment-channel h2{line-height:1.5;overflow-wrap:anywhere}