:root{--bg-primary: #090d16;--bg-secondary: #0f172a;--bg-card: rgba(17, 24, 39, .75);--bg-card-hover: rgba(30, 41, 59, .85);--bg-input: rgba(15, 23, 42, .8);--border-subtle: rgba(255, 255, 255, .08);--border-active: rgba(56, 189, 248, .4);--border-focus: #38bdf8;--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--accent-cyan: #38bdf8;--accent-blue: #3b82f6;--accent-green: #10b981;--accent-wechat: #07c160;--accent-amber: #f59e0b;--accent-red: #ef4444;--glow-cyan: rgba(56, 189, 248, .15);--glow-green: rgba(16, 185, 129, .18);--glow-red: rgba(239, 68, 68, .18);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .2);--shadow-md: 0 10px 25px -5px rgba(0, 0, 0, .4), 0 8px 10px -6px rgba(0, 0, 0, .3);--shadow-lg: 0 20px 35px -10px rgba(0, 0, 0, .5), 0 1px 3px 0 rgba(255, 255, 255, .05) inset;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 18px;--radius-full: 9999px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-display: "Outfit", var(--font-sans);--font-mono: "JetBrains Mono", monospace;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}[data-theme=light]{--bg-primary: #f8fafc;--bg-secondary: #f1f5f9;--bg-card: rgba(255, 255, 255, .85);--bg-card-hover: rgba(255, 255, 255, .95);--bg-input: rgba(255, 255, 255, .9);--border-subtle: rgba(0, 0, 0, .08);--border-active: rgba(59, 130, 246, .4);--border-focus: #2563eb;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--glow-cyan: rgba(59, 130, 246, .1);--glow-green: rgba(16, 185, 129, .12);--glow-red: rgba(239, 68, 68, .12);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 10px 20px -5px rgba(0, 0, 0, .08);--shadow-lg: 0 20px 30px -10px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .05)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.5;-webkit-font-smoothing:antialiased;background-image:radial-gradient(at 0% 0%,rgba(56,189,248,.08) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(16,185,129,.05) 0px,transparent 50%);background-attachment:fixed;transition:background-color var(--transition-normal),color var(--transition-normal)}.app-layout{display:flex;flex-direction:column;min-height:100vh}.app-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:var(--bg-card);border-bottom:1px solid var(--border-subtle);transition:border-color var(--transition-normal)}.header-container{max-width:1280px;margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand-group{display:flex;align-items:center;gap:.75rem}.brand-icon{width:36px;height:36px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--accent-cyan),var(--accent-blue));color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px #38bdf84d}.brand-text{display:flex;align-items:center;gap:.5rem}.brand-title{font-family:var(--font-display);font-weight:700;font-size:1.15rem;letter-spacing:-.02em;background:linear-gradient(to right,var(--text-primary),var(--accent-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent}.brand-badge{font-family:var(--font-mono);font-size:.7rem;padding:.15rem .45rem;border-radius:var(--radius-sm);background:var(--glow-cyan);color:var(--accent-cyan);border:1px solid var(--border-active)}.nav-tabs{display:flex;background:var(--bg-input);padding:.25rem;border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.tab-btn{display:flex;align-items:center;gap:.45rem;padding:.45rem 1rem;font-size:.875rem;font-weight:500;color:var(--text-secondary);background:transparent;border:none;border-radius:calc(var(--radius-md) - 2px);cursor:pointer;transition:all var(--transition-fast)}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{background:var(--bg-card-hover);color:var(--text-primary);box-shadow:var(--shadow-sm)}.header-actions{display:flex;align-items:center;gap:.75rem}.node-indicator{display:flex;align-items:center;gap:.45rem;padding:.35rem .75rem;border-radius:var(--radius-full);background:var(--bg-input);border:1px solid var(--border-subtle);font-size:.775rem;color:var(--text-secondary)}.pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--accent-green);box-shadow:0 0 #10b981b3;animation:pulse-green 2s infinite}@keyframes pulse-green{0%{transform:scale(.95);box-shadow:0 0 #10b981b3}70%{transform:scale(1);box-shadow:0 0 0 6px #10b98100}to{transform:scale(.95);box-shadow:0 0 #10b98100}}.latency-badge{font-family:var(--font-mono);font-size:.7rem;color:var(--accent-cyan)}.icon-button{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);background:var(--bg-input);border:1px solid var(--border-subtle);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.icon-button:hover{color:var(--text-primary);border-color:var(--border-active)}[data-theme=dark] .sun-icon{display:block}[data-theme=dark] .moon-icon,[data-theme=light] .sun-icon{display:none}[data-theme=light] .moon-icon{display:block}.app-main{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:2rem 1.5rem}.view-panel{display:none;animation:fadeIn .25s ease-out}.view-panel.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.glass-panel{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);transition:all var(--transition-normal)}.cashier-wrapper{max-width:620px;margin:0 auto;display:flex;flex-direction:column;gap:1.5rem}.search-card{padding:1.25rem;display:flex;flex-direction:column;gap:.75rem}.search-input-group{display:flex;align-items:center;gap:.75rem;background:var(--bg-input);border:1px solid var(--border-subtle);padding:.5rem .75rem;border-radius:var(--radius-md);transition:border-color var(--transition-fast)}.search-input-group:focus-within{border-color:var(--border-focus);box-shadow:0 0 0 2px var(--glow-cyan)}.search-input-group svg{color:var(--text-muted);flex-shrink:0}.search-input-group input{flex:1;background:transparent;border:none;color:var(--text-primary);font-size:.875rem;outline:none;font-family:var(--font-sans)}.quick-demo-chips{display:flex;align-items:center;gap:.5rem;font-size:.8rem;color:var(--text-muted)}.chip-btn{background:var(--glow-cyan);border:1px solid var(--border-active);color:var(--accent-cyan);font-size:.775rem;padding:.2rem .6rem;border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast)}.chip-btn:hover{background:var(--accent-cyan);color:#090d16}.cashier-card{padding:2rem 2.25rem;display:flex;flex-direction:column;gap:1.75rem;position:relative;overflow:hidden}.cashier-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent-cyan),var(--accent-blue),var(--accent-wechat))}.cashier-empty{text-align:center;padding:3rem 1rem;display:flex;flex-direction:column;align-items:center;gap:.75rem}.empty-icon{color:var(--text-muted);margin-bottom:.5rem}.cashier-empty h3{font-size:1.15rem;font-weight:600;color:var(--text-primary)}.cashier-empty p{font-size:.875rem;color:var(--text-secondary);max-width:380px}.cashier-header{display:flex;justify-content:space-between;align-items:flex-end;border-bottom:1px solid var(--border-subtle);padding-bottom:1.25rem}.order-desc-group{display:flex;flex-direction:column;gap:.4rem}.product-badge{font-size:.75rem;font-weight:600;color:var(--accent-wechat);background:#07c1601a;border:1px solid rgba(7,193,96,.3);padding:.2rem .5rem;border-radius:var(--radius-sm);display:inline-block;width:fit-content}.order-desc{font-size:1.2rem;font-weight:600;letter-spacing:-.01em}.order-price-box{display:flex;align-items:baseline;gap:.2rem;font-family:var(--font-display)}.currency-symbol{font-size:1.4rem;font-weight:700;color:var(--text-primary)}.amount-number{font-size:2.25rem;font-weight:800;color:var(--text-primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em}.currency-code{font-size:.75rem;color:var(--text-muted);margin-left:.2rem}.order-meta-list{display:flex;flex-direction:column;gap:.65rem;background:var(--bg-input);padding:.85rem 1rem;border-radius:var(--radius-md);border:1px solid var(--border-subtle)}.meta-row{display:flex;justify-content:space-between;align-items:center;font-size:.85rem}.meta-label{color:var(--text-secondary)}.meta-value{font-family:var(--font-mono);font-weight:500;color:var(--text-primary)}.meta-value.copyable{display:flex;align-items:center;gap:.4rem}.btn-copy{background:transparent;border:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;padding:2px;border-radius:var(--radius-sm);transition:color var(--transition-fast)}.btn-copy:hover{color:var(--accent-cyan)}.meta-value.countdown{color:var(--accent-amber);font-weight:600}.payment-action-box{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1.5rem 0;min-height:320px}.state-container{display:flex;flex-direction:column;align-items:center;text-align:center;width:100%;animation:fadeIn .3s ease-out}.qr-canvas-frame{position:relative;width:220px;height:220px;background:#fff;border-radius:var(--radius-lg);padding:12px;box-shadow:0 10px 30px #00000040;display:flex;align-items:center;justify-content:center}.qr-canvas{width:100%!important;height:100%!important;display:block;border-radius:var(--radius-sm)}.qr-logo-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:36px;height:36px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #00000026}.scan-guide{margin-top:1.25rem;display:flex;flex-direction:column;align-items:center;gap:.35rem}.scan-tip{font-size:.9rem;color:var(--text-primary)}.polling-cue{font-size:.75rem;color:var(--text-muted)}.success-icon-wrap{width:80px;height:80px;margin-bottom:1rem}.checkmark-svg{width:80px;height:80px;border-radius:50%;display:block;stroke-width:3;stroke:var(--accent-green);stroke-miterlimit:10;box-shadow:inset 0 0 0 var(--accent-green);animation:fill .4s ease-in-out .4s forwards,scale .3s ease-in-out .9s both}.checkmark-circle{stroke-dasharray:166;stroke-dashoffset:166;stroke-width:3;stroke-miterlimit:10;stroke:var(--accent-green);fill:none;animation:stroke .6s cubic-bezier(.65,0,.45,1) forwards}.checkmark-check{transform-origin:50% 50%;stroke-dasharray:48;stroke-dashoffset:48;animation:stroke .3s cubic-bezier(.65,0,.45,1) .8s forwards}@keyframes stroke{to{stroke-dashoffset:0}}@keyframes scale{0%,to{transform:none}50%{transform:scale3d(1.1,1.1,1)}}@keyframes fill{to{box-shadow:inset 0 0 0 30px #10b98126}}.success-title{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--accent-green);margin-bottom:.25rem}.success-sub{font-size:.875rem;color:var(--text-secondary);margin-bottom:1.5rem}.closed-icon-wrap{color:var(--accent-red);margin-bottom:1rem}.closed-title{font-size:1.35rem;font-weight:700;color:var(--accent-red);margin-bottom:.25rem}.closed-sub{font-size:.875rem;color:var(--text-secondary);margin-bottom:1.5rem}.cashier-footer-note{display:flex;align-items:center;justify-content:center;gap:.5rem;font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border-subtle);padding-top:1rem}.admin-wrapper{display:flex;flex-direction:column;gap:2rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}.stat-card{padding:1.25rem;display:flex;flex-direction:column;gap:.5rem}.stat-label{font-size:.8rem;color:var(--text-secondary)}.stat-val-group{display:flex;align-items:center;gap:.5rem}.status-indicator-badge{display:inline-flex;align-items:center;padding:.25rem .65rem;border-radius:var(--radius-sm);font-size:.8rem;font-weight:600}.status-indicator-badge.live{background:var(--glow-green);color:var(--accent-green);border:1px solid rgba(16,185,129,.4)}.status-indicator-badge.ready{background:var(--glow-cyan);color:var(--accent-cyan);border:1px solid var(--border-active)}.status-indicator-badge.edge{background:#a855f726;color:#c084fc;border:1px solid rgba(168,85,247,.3)}.status-indicator-badge.hmac{background:#f59e0b26;color:#fbbf24;border:1px solid rgba(245,158,11,.3)}.stat-sub{font-size:.75rem;color:var(--text-muted)}.admin-columns{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media (max-width: 900px){.admin-columns{grid-template-columns:1fr}}.form-card{padding:1.5rem;display:flex;flex-direction:column;gap:1.25rem}.card-header{display:flex;justify-content:space-between;align-items:center}.card-header h3{font-size:1.05rem;font-weight:600}.card-tag{font-family:var(--font-mono);font-size:.75rem;color:var(--accent-cyan);background:var(--glow-cyan);padding:.15rem .45rem;border-radius:var(--radius-sm)}.admin-form{display:flex;flex-direction:column;gap:1rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-group{display:flex;flex-direction:column;gap:.4rem}.form-group label{font-size:.8rem;color:var(--text-secondary);font-weight:500}.form-group input,.form-group select{background:var(--bg-input);border:1px solid var(--border-subtle);color:var(--text-primary);padding:.6rem .8rem;border-radius:var(--radius-md);font-size:.875rem;outline:none;font-family:var(--font-sans);transition:border-color var(--transition-fast)}.form-group input:focus,.form-group select:focus{border-color:var(--border-focus)}.input-hint{font-size:.7rem;color:var(--text-muted)}.form-actions{margin-top:.5rem}.log-console-wrap{margin-top:1rem;display:flex;flex-direction:column;border:1px solid var(--border-subtle);border-radius:var(--radius-md);overflow:hidden;background:#050811}.console-header{display:flex;justify-content:space-between;align-items:center;padding:.4rem .75rem;background:#ffffff08;border-bottom:1px solid var(--border-subtle);font-size:.75rem;color:var(--text-muted)}.btn-clear{background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:.7rem}.btn-clear:hover{color:var(--text-primary)}.console-body{padding:.75rem;font-family:var(--font-mono);font-size:.75rem;color:#38bdf8;max-height:200px;overflow-y:auto;white-space:pre-wrap;word-break:break-all}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.25rem;font-size:.875rem;font-weight:600;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--accent-cyan),var(--accent-blue));color:#fff;box-shadow:0 4px 14px #38bdf840}.btn-primary:hover{filter:brightness(1.1);box-shadow:0 6px 20px #38bdf859;transform:translateY(-1px)}.btn-secondary{background:var(--bg-card-hover);color:var(--text-primary);border:1px solid var(--border-subtle)}.btn-secondary:hover{border-color:var(--border-active);background:var(--bg-input)}.btn-danger{background:var(--accent-red);color:#fff;box-shadow:0 4px 14px #ef444440}.btn-danger:hover{filter:brightness(1.1);box-shadow:0 6px 20px #ef444459;transform:translateY(-1px)}.toast-shelf{position:fixed;bottom:2rem;right:2rem;display:flex;flex-direction:column;gap:.5rem;z-index:100;pointer-events:none}.toast{pointer-events:auto;display:flex;align-items:center;gap:.6rem;padding:.65rem 1rem;border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-subtle);box-shadow:var(--shadow-lg);font-size:.85rem;animation:toastIn .25s ease-out}.toast.success{border-color:var(--accent-green);color:var(--accent-green)}.toast.error{border-color:var(--accent-red);color:var(--accent-red)}.toast.info{border-color:var(--accent-cyan);color:var(--accent-cyan)}@keyframes toastIn{0%{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.app-footer{margin-top:auto;border-top:1px solid var(--border-subtle);background:var(--bg-card);padding:1.25rem 1.5rem;font-size:.8rem;color:var(--text-muted)}.footer-content{max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.75rem}.footer-links{display:flex;align-items:center;gap:.5rem}.footer-links a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition-fast)}.footer-links a:hover{color:var(--accent-cyan)}.sep{color:var(--border-subtle)}