@import "https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap";
:root{--font-primary:"Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body:"Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--bg-primary:#f8fafc;--bg-surface:#fff;--bg-sidebar:#0f172a;--bg-sidebar-card:#1e293b;--border-color:#e2e8f0;--border-focus:#ed2027;--text-main:#0f172a;--text-muted:#64748b;--text-subtle:#94a3b8;--text-inverse:#fff;--brand-primary:#ed2027;--brand-primary-hover:#d9141b;--brand-yellow:#facc15;--brand-yellow-hover:#eab308;--brand-emerald:#10b981;--brand-sky:#0284c7;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 3px 0 #0000000a, 0 1px 2px -1px #0000000a;--shadow-md:0 4px 12px -2px #0000000f, 0 2px 6px -2px #0000000a;--shadow-lg:0 12px 28px -4px #00000014, 0 4px 12px -4px #00000008;--shadow-glow:0 0 0 3px #ed20271f}*{box-sizing:border-box;font-family:var(--font-body);margin:0;padding:0}html,body{min-height:100vh;color:var(--text-main);font-family:var(--font-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f1f5f9}h1,h2,h3,h4,h5,h6{font-family:var(--font-primary);color:var(--text-main);letter-spacing:-.02em;font-weight:700}.checkout-top-accent{background:linear-gradient(90deg,#ed2027 0%,#ff4d53 60%,#facc15 100%);width:100%;height:4px}.checkout-wrapper{min-height:100vh;padding-bottom:env(safe-area-inset-bottom,24px);background:#f1f5f9;flex-direction:column;display:flex;position:relative}.checkout-page-container{width:100%;max-width:1120px;margin:32px auto 48px;padding:0 20px}@media (max-width:959px){.checkout-page-container{width:100%;max-width:500px;margin:10px auto 24px;padding:0 10px}}.checkout-grid{background:#fff;border-radius:24px;grid-template-columns:1fr;min-height:680px;display:grid;overflow:hidden;box-shadow:0 20px 50px -12px #0f172a1f,0 0 0 1px #0f172a0d}@media (max-width:959px){.checkout-grid{border-radius:18px;min-height:auto;box-shadow:0 10px 30px -5px #0f172a14,0 0 0 1px #0f172a0f}}@media (min-width:960px){.checkout-page-container{flex-direction:column;height:calc(100vh - 48px);max-height:950px;margin:24px auto;display:flex}.checkout-grid{grid-template-columns:440px 1fr;height:100%;min-height:0;max-height:100%;overflow:hidden}.checkout-sidebar{height:100%;max-height:100%;overflow-y:auto}.checkout-main{scroll-behavior:smooth;-webkit-overflow-scrolling:touch;height:100%;max-height:100%;overflow-y:auto}}@media (min-width:1200px){.checkout-grid{grid-template-columns:460px 1fr}}.checkout-main::-webkit-scrollbar{width:6px}.checkout-sidebar::-webkit-scrollbar{width:6px}.checkout-main::-webkit-scrollbar-track{background:0 0}.checkout-sidebar::-webkit-scrollbar-track{background:0 0}.checkout-main::-webkit-scrollbar-thumb{background:#0f172a1f;border-radius:9999px}.checkout-sidebar::-webkit-scrollbar-thumb{background:#0f172a1f;border-radius:9999px}.checkout-main::-webkit-scrollbar-thumb:hover{background:#0f172a40}.checkout-sidebar::-webkit-scrollbar-thumb:hover{background:#0f172a40}.checkout-sidebar{color:var(--text-main);background:linear-gradient(165deg,#fff5f5 0%,#fee2e2 50%,#fef2f2 100%);border-right:1.5px solid #fecaca;flex-direction:column;padding:40px 32px;display:flex;position:relative}.summary-merchant-bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:24px;display:flex}.mobile-summary-toggle{display:none}@media (max-width:959px){.checkout-sidebar{background:linear-gradient(#fff 0%,#fff8f8 100%);border-bottom:1.5px solid #fecaca;border-right:none;padding:14px 14px 12px}.summary-merchant-bar{margin-bottom:12px}.mobile-summary-toggle{cursor:pointer;color:#991b1b;-webkit-tap-highlight-color:transparent;background:#fff;border:1.5px solid #fecaca;border-radius:12px;justify-content:space-between;align-items:center;width:100%;padding:10px 12px;font-size:13px;font-weight:700;transition:all .2s;display:flex;box-shadow:0 2px 6px #ed20270f}.mobile-summary-toggle:active{background:#fff5f5;transform:scale(.99)}.mobile-summary-details{border-top:1px dashed #ed20274d;margin-top:14px;padding-top:18px;animation:.25s fadeIn;display:none}.mobile-summary-details.expanded{display:block}}@media (min-width:960px){.mobile-summary-details{flex-direction:column;height:100%;display:flex!important}}.checkout-main{background:#fff;flex-direction:column;width:100%;padding:40px 44px;display:flex}@media (max-width:959px){.checkout-main{padding:18px 14px calc(28px + env(safe-area-inset-bottom,0px))}.checkout-header{display:none!important}}.section-title{color:#0f172a;text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;font-size:13px;font-weight:700}.contact-pill-box{border-radius:var(--radius-sm);background:#f8fafc;border:1.5px solid #e2e8f0;justify-content:space-between;align-items:center;gap:8px;margin-bottom:20px;padding:12px 14px;font-size:13px;display:flex}@media (max-width:480px){.contact-pill-box{flex-direction:column;align-items:flex-start;gap:4px}}.checkout-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:24px;padding-bottom:18px;display:flex}.brand-logo{align-items:center;gap:12px;text-decoration:none;transition:opacity .2s;display:flex}.brand-logo:hover{opacity:.9}.brand-badge{color:#059669;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:9999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.methods-container{flex-direction:column;gap:12px;margin:22px 0;display:flex}.method-card{background:var(--bg-surface);border:1.5px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;box-shadow:var(--shadow-sm);padding:16px 18px;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.method-card:hover:not(.disabled){box-shadow:var(--shadow-md);border-color:#cbd5e1;transform:translateY(-2px)}.method-card.active{border-color:var(--brand-primary);box-shadow:var(--shadow-glow), var(--shadow-md);background:#fffcfc}.method-card.disabled{opacity:.5;cursor:not-allowed;background:#f8fafc}.method-header{justify-content:space-between;align-items:center;gap:10px;width:100%;display:flex}.method-info{flex:1;align-items:center;gap:12px;min-width:0;display:flex}.method-icon{color:#334155;background:#f8fafc;border:1px solid #e2e8f0;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:42px;height:42px;transition:all .2s;display:flex}.method-card.active .method-icon{color:var(--brand-primary);background:#fef2f2;border-color:#fecaca}.method-title-wrap{flex:1;min-width:0}.method-title-wrap h4{color:#0f172a;margin-bottom:2px;font-size:14px;font-weight:700;line-height:1.25}.method-title-wrap p{color:var(--text-muted);font-size:12px;line-height:1.3}.method-radio{border:2px solid #cbd5e1;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:20px;height:20px;transition:all .2s;display:flex}.method-card.active .method-radio{border-color:var(--brand-primary);background:var(--brand-primary)}.method-radio:after{content:"";opacity:0;background:#fff;border-radius:50%;width:8px;height:8px;transition:all .2s;transform:scale(0)}.method-card.active .method-radio:after{opacity:1;transform:scale(1)}.method-expanded-content{border-top:1px solid #e2e8f0;margin-top:16px;padding-top:16px;animation:.25s ease-in-out fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.form-group{margin-bottom:16px}.form-label{color:#334155;margin-bottom:6px;font-size:13px;font-weight:600;display:block}.form-input,.form-select{width:100%;font-size:14px;font-family:var(--font-body);color:var(--text-main);border:1.5px solid var(--border-color);border-radius:var(--radius-sm);appearance:none;background:#fff;outline:none;padding:12px 14px;transition:all .2s}@media (max-width:768px){.form-input,.form-select{padding:11px 13px;font-size:16px}.method-card{padding:14px}.method-info{gap:10px}.method-icon{width:40px;height:40px}}.form-input:focus,.form-select:focus{border-color:var(--brand-primary);box-shadow:var(--shadow-glow)}.input-with-addon{align-items:stretch;display:flex}.input-addon{border:1.5px solid var(--border-color);border-radius:var(--radius-sm) 0 0 var(--radius-sm);color:var(--text-muted);background:#f1f5f9;border-right:none;align-items:center;padding:0 14px;font-size:14px;font-weight:500;display:flex}.input-with-addon .form-input{border-radius:0 var(--radius-sm) var(--radius-sm) 0}.btn-pay{width:100%;font-size:16px;font-family:var(--font-primary);color:#fff;background:linear-gradient(135deg, var(--brand-primary) 0%, #c41218 100%);border-radius:var(--radius-md);cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;justify-content:center;align-items:center;gap:10px;min-height:48px;padding:15px 24px;font-weight:700;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;box-shadow:0 4px 14px #ed202759}.btn-pay:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #ed202773}.btn-pay:active:not(:disabled){transform:translateY(0)}.btn-pay:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{color:#334155;border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:pointer;-webkit-tap-highlight-color:transparent;background:#f1f5f9;align-items:center;gap:6px;padding:10px 16px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn-secondary:hover{background:#e2e8f0}.sim-config-grid{grid-template-columns:1fr 380px;gap:28px;display:grid}@media (max-width:959px){.sim-config-grid{grid-template-columns:1fr;gap:20px}}.dropzone-box{border-radius:var(--radius-md);text-align:center;cursor:pointer;background:#fafbfc;border:2px dashed #cbd5e1;padding:24px 16px;transition:all .2s;position:relative}.dropzone-box:hover{border-color:var(--brand-indigo);background:#f5f7ff}.dropzone-preview{border-radius:var(--radius-sm);max-height:180px;box-shadow:var(--shadow-sm);object-fit:contain;margin-top:10px}.modal-backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:9999;background:#0f172ab3;justify-content:center;align-items:center;padding:20px;animation:.2s fadeIn;display:flex;position:fixed;inset:0}.modal-card{border-radius:var(--radius-lg);width:100%;max-width:480px;box-shadow:var(--shadow-lg);background:#fff;padding:28px;animation:.25s cubic-bezier(.16,1,.3,1) slideUp;position:relative}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.summary-item-row{color:#475569;border-bottom:1px solid #f1f5f9;justify-content:space-between;align-items:center;padding:10px 0;font-size:14px;display:flex}.summary-item-row:last-child{border-bottom:none}.summary-total-hero{border:2px solid var(--brand-primary);border-radius:var(--radius-lg);background:#fff;margin-bottom:24px;padding:24px 20px;box-shadow:0 4px 20px #ed202714}.summary-total-hero .amount{color:#0f172a;letter-spacing:-.03em;margin-top:4px;font-size:34px;font-weight:800}.summary-total-hero .cny-equivalent{color:var(--text-muted);margin-top:4px;font-size:13px}.toast-badge{color:#fff;box-shadow:var(--shadow-lg);z-index:10000;background:#1e293b;border-radius:9999px;align-items:center;gap:8px;padding:12px 20px;font-size:13px;font-weight:600;animation:.2s slideUp;display:flex;position:fixed;bottom:24px;right:24px}