.checkout-site{--checkout-bg:#08090a;--checkout-surface:#121416;--checkout-surface-soft:#17191c;--checkout-ink:#f5f4f0;--checkout-muted:#f5f4f09e;--checkout-line:#ffffff24;--checkout-line-strong:#ffffff3d;--checkout-light:#f2f1ed;--checkout-light-ink:#151719;--checkout-light-muted:#1517199e;isolation:isolate;background:radial-gradient(circle at 50% -12%, #4a5b6833, transparent 34%), radial-gradient(circle at 8% 36%, #ffffff09, transparent 25%), var(--checkout-bg);min-height:100dvh;color:var(--checkout-ink);position:relative;overflow-x:hidden}.checkout-site:before{content:"";z-index:-1;pointer-events:none;background:linear-gradient(#ffffff06,#0000 78%);height:420px;position:absolute;inset:0 0 auto}.checkout-site button,.checkout-site a{-webkit-tap-highlight-color:transparent}.checkout-site :is(button,a):focus-visible{outline-offset:3px;outline:2px solid #f5f4f0e0}.checkout-site .topbar.topbar-overlay{background:#0c0d0e6b;width:min(1180px,100% - 40px);box-shadow:inset 0 1px #ffffff2b,0 16px 50px #0000002e}.checkout-page{width:min(1180px,100% - 40px);margin:0 auto;padding:clamp(54px,6vw,76px) 0 clamp(78px,9vw,116px)}.checkout-hero{max-width:760px;margin:0 0 clamp(36px,4vw,52px);display:block}.checkout-top-back,.checkout-missing-action{color:#f5f4f0a8;background:0 0;border:0;border-radius:0;align-items:center;gap:8px;width:fit-content;min-height:0;padding:0;font-size:13px;font-weight:680;text-decoration:none;transition:color .16s,transform .16s;display:inline-flex}.checkout-top-back:hover,.checkout-missing-action:hover{color:var(--checkout-ink);transform:translate(-2px)}.checkout-hero h1,.checkout-missing-page h1{color:var(--checkout-ink);font-family:var(--landing-serif);letter-spacing:-.05em;margin:26px 0 0;font-size:clamp(54px,6vw,78px);font-weight:400;line-height:1}.checkout-lang-zh .checkout-hero h1,.checkout-lang-zh .checkout-missing-page h1{font-family:"Songti SC", STSong, var(--landing-serif);letter-spacing:-.065em;font-weight:600}.checkout-hero>p,.checkout-missing-page>p{color:#f5f4f0b3;max-width:650px;margin:18px 0 0;font-size:16px;line-height:1.7}.checkout-layout{grid-template-columns:minmax(0,1fr) minmax(330px,370px);align-items:start;gap:20px;display:grid}.checkout-main-card{border:1px solid var(--checkout-line);-webkit-backdrop-filter:blur(18px);background:#121416e0;border-radius:24px;gap:0;min-width:0;padding:clamp(24px,3vw,36px);display:grid;box-shadow:inset 0 1px #ffffff0b,0 28px 80px #0000002e}.checkout-package-head{grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:28px;padding-bottom:30px;display:grid}.checkout-section-label{color:var(--checkout-muted);letter-spacing:.02em;font-size:12px;font-weight:680;display:block}.checkout-package-head h2{color:var(--checkout-ink);letter-spacing:-.045em;margin:10px 0 0;font-size:clamp(28px,3.4vw,42px);line-height:1.05}.checkout-package-head p{color:var(--checkout-muted);margin:10px 0 0;font-size:14px;line-height:1.55}.checkout-package-price{text-align:right;min-width:180px}.checkout-package-price strong{color:var(--checkout-ink);letter-spacing:-.055em;margin:0;font-size:clamp(36px,4.2vw,54px);font-weight:620;line-height:.95;display:block}.checkout-package-price span{color:var(--checkout-muted);text-transform:none;margin-top:10px;font-size:12px;line-height:1.45;display:block}.checkout-credit-allocation{border:1px solid var(--checkout-line);background:var(--checkout-line);border-radius:18px;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;display:grid;overflow:hidden}.checkout-credit-allocation--single{grid-template-columns:1fr}.checkout-credit-allocation>div{background:#ffffff06;min-width:0;padding:20px}.checkout-credit-allocation span,.checkout-credit-allocation small{color:var(--checkout-muted);display:block}.checkout-credit-allocation span{font-size:12px;font-weight:680}.checkout-credit-allocation strong{color:var(--checkout-ink);letter-spacing:-.045em;margin-top:8px;font-size:clamp(28px,3.2vw,38px);font-weight:560;line-height:1;display:block}.checkout-credit-allocation small{margin-top:10px;font-size:11px;line-height:1.45}.checkout-benefits{border:0;border-bottom:1px solid var(--checkout-line);background:0 0;border-radius:0;padding:30px 0}.checkout-benefits h3,.checkout-secure-handoff h3{color:var(--checkout-ink);margin:0;font-size:14px;font-weight:720}.checkout-benefits ul{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 26px;margin:18px 0 0;padding:0;list-style:none;display:grid}.checkout-benefits li{color:#f5f4f0c2;grid-template-columns:18px minmax(0,1fr);align-items:start;gap:9px;min-width:0;padding:0;font-size:13px;line-height:1.48;display:grid}.checkout-benefits li:before{display:none}.checkout-benefits li svg{color:#f5f4f09e;margin-top:1px}.checkout-secure-handoff{grid-template-columns:30px minmax(0,1fr);align-items:start;gap:14px;padding-top:28px;display:grid}.checkout-secure-handoff>svg{color:#f5f4f0b8}.checkout-secure-handoff p{max-width:650px;color:var(--checkout-muted);margin:8px 0 0;font-size:12px;line-height:1.6}.checkout-summary-card{background:var(--checkout-light);color:var(--checkout-light-ink);border:1px solid #ffffff8a;border-radius:24px;gap:0;padding:28px;display:grid;position:sticky;top:24px;box-shadow:inset 0 1px #ffffffbf,0 30px 80px #00000042}.checkout-summary-card .checkout-section-label{color:var(--checkout-light-muted)}.checkout-summary-card h2{color:var(--checkout-light-ink);font-family:var(--landing-serif);letter-spacing:-.045em;margin:10px 0 26px;font-size:34px;font-weight:400;line-height:1.05}.checkout-lang-zh .checkout-summary-card h2{font-family:"Songti SC", STSong, var(--landing-serif);letter-spacing:-.055em;font-weight:600}.checkout-summary-lines{border-top:1px solid #15171924;border-bottom:1px solid #15171924;gap:13px;padding:18px 0;display:grid}.checkout-summary-lines>div,.checkout-total-line{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.checkout-summary-lines span{color:var(--checkout-light-muted);font-size:13px;line-height:1.45}.checkout-summary-lines strong{max-width:185px;color:var(--checkout-light-ink);text-align:right;font-size:13px;font-weight:700;line-height:1.45}.checkout-total-line{align-items:baseline;padding:22px 0}.checkout-total-line span{color:var(--checkout-light-ink);font-size:14px;font-weight:720}.checkout-total-line strong{color:var(--checkout-light-ink);letter-spacing:-.05em;font-size:34px;font-weight:620;line-height:1}.checkout-status-line{color:#151719b8;background:#1517190b;border:1px solid #15171926;border-radius:13px;grid-template-columns:20px minmax(0,1fr);align-items:start;gap:9px;margin:0 0 14px;padding:12px;font-family:inherit;font-size:12px;line-height:1.5;display:grid}.checkout-status-line p{margin:0}.checkout-status-line.completed{color:#235c3b;background:#20704412;border-color:#20704442}.checkout-status-line.error{color:#812c2c;background:#972c2c12;border-color:#972c2c3d}.checkout-pay-btn{border:1px solid var(--checkout-light-ink);background:var(--checkout-light-ink);width:100%;min-height:50px;color:var(--checkout-light);white-space:nowrap;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:9px;padding:0 20px;font-size:13px;font-weight:760;text-decoration:none;transition:transform .16s,background .16s,opacity .16s;display:inline-flex}.checkout-pay-btn:hover:not(:disabled){background:#25282b;transform:translateY(-1px)}.checkout-pay-btn:active:not(:disabled){transform:translateY(0)scale(.99)}.checkout-pay-btn:disabled{color:#f2f1eddb;cursor:not-allowed;background:#1517194d;border-color:#15171938}.checkout-back-link{color:#151719ad;background:0 0;border:0;border-radius:999px;justify-content:center;align-items:center;min-height:42px;margin-top:8px;padding:0 16px;font-size:12px;font-weight:690;text-decoration:none;transition:color .16s,background .16s;display:inline-flex}.checkout-back-link:hover{color:var(--checkout-light-ink);background:#1517190e}.checkout-note{color:var(--checkout-light-muted);border-top:1px solid #1517191f;grid-template-columns:17px minmax(0,1fr);align-items:start;gap:8px;margin:16px 0 0;padding-top:16px;font-size:11px;line-height:1.55;display:grid}.checkout-note svg{margin-top:1px}.checkout-dialog-backdrop{z-index:40;-webkit-backdrop-filter:blur(12px);background:#050607c2;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.checkout-success-modal{background:var(--checkout-light);width:min(500px,100vw - 32px);color:var(--checkout-light-ink);text-align:left;border:1px solid #ffffff8a;border-radius:24px;padding:38px;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffffd1,0 34px 100px #0000006b}.checkout-success-close{width:38px;height:38px;color:var(--checkout-light-ink);cursor:pointer;background:0 0;border:1px solid #15171924;border-radius:50%;place-items:center;padding:0;display:grid;position:absolute;top:16px;right:16px}.checkout-success-close:hover{background:#1517190f}.checkout-success-icon{color:#151719b8;margin-bottom:28px}.checkout-success-modal .checkout-section-label{color:var(--checkout-light-muted)}.checkout-success-modal h2{color:var(--checkout-light-ink);font-family:var(--landing-serif);letter-spacing:-.05em;margin:10px 0 12px;font-size:clamp(34px,5vw,48px);font-weight:400;line-height:1.05}.checkout-lang-zh .checkout-success-modal h2{font-family:"Songti SC", STSong, var(--landing-serif);letter-spacing:-.055em;font-weight:600}.checkout-success-copy{max-width:420px;color:var(--checkout-light-muted);margin:0;font-size:14px;line-height:1.65}.checkout-success-actions{grid-template-columns:1fr 1fr;gap:10px;margin-top:28px;display:grid}.checkout-success-actions .checkout-pay-btn,.checkout-success-actions .checkout-back-link{min-height:48px;margin:0}.checkout-success-actions .checkout-back-link{border:1px solid #15171929}.checkout-missing-page{align-content:center;justify-items:start;gap:0;width:min(760px,100% - 40px);min-height:calc(100dvh - 104px);margin:0 auto;padding:80px 0;display:grid}.checkout-missing-page h1{margin-top:18px}.checkout-missing-page .checkout-missing-action{margin-top:28px}@media (max-width:980px){.checkout-layout{grid-template-columns:1fr}.checkout-summary-card{order:-1;position:static}}@media (max-width:720px){.checkout-site .topbar.topbar-overlay{width:calc(100% - 24px)}.checkout-page{width:calc(100% - 24px);padding:42px 0 72px}.checkout-hero{margin-bottom:30px}.checkout-hero h1,.checkout-missing-page h1{margin-top:22px;font-size:clamp(46px,14vw,62px)}.checkout-hero>p,.checkout-missing-page>p{font-size:14px}.checkout-main-card,.checkout-summary-card{border-radius:20px}.checkout-main-card{padding:22px}.checkout-summary-card{padding:24px}.checkout-package-head{grid-template-columns:1fr;gap:22px}.checkout-package-price{text-align:left;min-width:0}.checkout-package-price span{max-width:260px}.checkout-benefits ul{grid-template-columns:1fr}}@media (max-width:480px){.checkout-credit-allocation{grid-template-columns:1fr}.checkout-success-modal{border-radius:20px;padding:32px 22px 24px}.checkout-success-actions{grid-template-columns:1fr}.checkout-missing-page{width:calc(100% - 24px)}}@media (prefers-reduced-transparency:reduce){.checkout-site .topbar.topbar-overlay,.checkout-main-card,.checkout-dialog-backdrop{-webkit-backdrop-filter:none}.checkout-site .topbar.topbar-overlay{background:#101214}.checkout-main-card{background:var(--checkout-surface)}}