:root{--primary: rgb(255, 80, 0);--primary-dark: rgb(230, 69, 0);--primary-light: rgb(255, 122, 38);--primary-bg: rgb(255, 245, 240);--primary-glow: rgba(255, 80, 0, .15);--success: rgb(16, 185, 129);--success-bg: rgb(236, 253, 245);--success-border: rgb(167, 243, 208);--error: rgb(239, 68, 68);--error-bg: rgb(254, 242, 242);--error-border: rgb(254, 202, 202);--text-primary: rgb(31, 41, 55);--text-secondary: rgb(107, 114, 128);--text-tertiary: rgb(156, 163, 175);--bg-primary: rgb(255, 255, 255);--bg-secondary: rgb(249, 250, 251);--bg-tertiary: rgb(243, 244, 246);--border: rgb(229, 231, 235);--border-light: rgb(243, 244, 246);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05), 0 2px 4px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .08), 0 4px 10px rgba(0, 0, 0, .04);--radius-sm: 10px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 24px;--transition: all .25s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:#f5f5f7;color:var(--text-primary);line-height:1.6;min-height:100vh;-webkit-text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:560px;margin:0 auto;padding:0 16px}.header{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);position:sticky;top:0;z-index:100}.header .container{display:flex;align-items:center;justify-content:space-between;padding:14px 16px}.header-stats-bar{background:#0000001a;text-align:center;width:100%}.stats-bar-inner{display:flex;align-items:center;justify-content:center;gap:8px;padding:6px 0;text-align:center}.stats-bar-item{font-size:11px;color:#fffc}.stats-bar-item strong{color:#fff;font-weight:700}.stats-bar-dot{color:#fff6;font-size:11px}.logo{display:flex;align-items:center;gap:10px}.logo-icon{width:34px;height:34px;border-radius:10px;object-fit:cover;border:2px solid rgba(255,255,255,.3)}.logo-text{font-size:17px;font-weight:700;color:#fff;letter-spacing:.3px}.header-stats{display:flex;gap:16px;align-items:center}.stat-item{display:flex;flex-direction:column;align-items:center;gap:1px}.stat-value{font-size:18px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}.stat-label{font-size:10px;color:#ffffffbf;font-weight:500}.stat-divider{width:1px;height:20px;background:#ffffff40}.main{padding:16px 0 100px}.info-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:12px 14px;margin-bottom:10px;border:1px solid var(--border)}.info-details{cursor:pointer}.info-details summary{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--text-secondary);list-style:none;-webkit-user-select:none;user-select:none}.info-details summary::-webkit-details-marker{display:none}.info-icon{width:16px;height:16px;color:var(--primary);flex-shrink:0}.info-content{margin-top:10px;padding-top:10px;border-top:1px solid var(--border-light)}.info-list{list-style:none;display:flex;flex-direction:column;gap:6px}.info-list li{font-size:12px;color:var(--text-secondary);padding-left:14px;position:relative;line-height:1.5}.info-list li:before{content:"•";position:absolute;left:0;color:var(--primary);font-weight:700}.submit-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:14px;margin-bottom:10px;border:1px solid var(--border)}.submit-card--compact{padding:12px 14px}.submit-form{display:flex;gap:10px;position:relative}.code-input{flex:1;height:42px;padding:0 12px;font-size:15px;border:1.5px solid var(--border);border-radius:var(--radius-md);transition:var(--transition);background:var(--bg-secondary);color:var(--text-primary);font-variant-numeric:tabular-nums}.code-input:focus{outline:none;border-color:var(--primary);background:var(--bg-primary);box-shadow:0 0 0 3px var(--primary-glow)}.code-input.error{border-color:var(--error);box-shadow:0 0 0 3px #ef44441a}.code-input.success{border-color:var(--success);box-shadow:0 0 0 3px #10b9811a}.honeypot{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}.input-hint{font-size:11px;margin-top:6px;min-height:0;transition:var(--transition);padding-left:2px}.input-hint.error{color:var(--error)}.input-hint.success{color:var(--success)}.submit-btn{height:42px;padding:0 18px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border:none;border-radius:var(--radius-md);font-size:14px;font-weight:700;cursor:pointer;transition:var(--transition);box-shadow:0 2px 8px #ff500040;white-space:nowrap;flex-shrink:0;letter-spacing:.5px}.submit-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #ff500059}.submit-btn:active{transform:translateY(0);box-shadow:0 1px 4px #ff500033}.submit-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.list-card{background:var(--bg-primary);border-radius:var(--radius-lg);padding:14px;border:1px solid var(--border);margin-bottom:10px}.list-card:last-of-type{margin-bottom:0}.list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.list-title{font-size:15px;font-weight:700;color:var(--text-primary)}.list-filter{display:flex;gap:6px;background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:3px}.filter-btn{padding:5px 14px;background:transparent;border:none;border-radius:8px;font-size:12px;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:var(--transition)}.filter-btn:hover{color:var(--text-primary)}.filter-btn.active{background:var(--bg-primary);color:var(--primary);box-shadow:0 1px 3px #00000014}.list-content{display:flex;flex-direction:column;gap:8px}.code-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:var(--radius-md);transition:var(--transition);border:1px solid transparent;gap:12px}.code-item.available{background:var(--success-bg);border-color:var(--success-border)}.code-item.used{background:var(--bg-secondary);border-color:var(--border-light);opacity:.6}.code-item:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}.code-left{display:flex;align-items:center;gap:12px;min-width:0}.code-number{font-size:18px;font-weight:700;color:var(--text-primary);letter-spacing:1.5px;font-family:SF Mono,Courier New,monospace;white-space:nowrap}.code-time{font-size:11px;color:var(--text-tertiary);white-space:nowrap}.code-ip{font-size:10px;color:var(--text-tertiary);white-space:nowrap}.code-meta-group{display:flex;align-items:center;gap:8px;min-width:0}.code-right{flex-shrink:0;display:flex;gap:6px}.used-badge{display:inline-flex;align-items:center;padding:4px 10px;background:var(--bg-tertiary);color:var(--text-tertiary);border-radius:6px;font-size:11px;font-weight:500}.help-btn{display:inline-flex;align-items:center;gap:4px;padding:7px 12px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;border:none;border-radius:8px;font-size:13px;font-weight:600;cursor:pointer;transition:var(--transition);box-shadow:0 2px 6px #ff500033;white-space:nowrap}.help-btn--go{background:linear-gradient(135deg,var(--success),rgb(5,160,110));box-shadow:0 2px 6px #10b98140}.help-btn:hover{transform:translateY(-1px);box-shadow:0 3px 10px #ff50004d}.help-btn:active{transform:translateY(0);box-shadow:0 1px 3px #ff500026}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 20px;color:var(--text-secondary)}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-state p{margin-top:12px;font-size:13px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 20px;color:var(--text-secondary)}.empty-state svg{width:48px;height:48px;color:var(--text-tertiary);margin-bottom:12px}.empty-state p{font-size:13px}.load-more{text-align:center;padding:14px;color:var(--text-tertiary);font-size:12px}.toast{position:fixed;top:70px;left:50%;transform:translate(-50%) translateY(0);padding:10px 20px;background:var(--text-primary);color:#fff;border-radius:var(--radius-sm);font-size:13px;font-weight:500;box-shadow:var(--shadow-lg);z-index:3000;max-width:90%;word-break:break-word}.toast.success{background:var(--success)}.toast.error{background:var(--error)}.gzh-banner{padding:6px 0 0}.gzh-card{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--bg-primary);border-radius:var(--radius-lg);border:1px solid var(--border);cursor:pointer;transition:var(--transition)}.gzh-card:active{transform:scale(.98)}.gzh-card-left{display:flex;align-items:center;gap:12px;min-width:0}.gzh-wechat-icon{width:38px;height:38px;background:linear-gradient(135deg,#07c160,#06ad56);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.gzh-card-text{min-width:0}.gzh-card-title{font-weight:700;color:var(--text-primary);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.gzh-card-desc{color:var(--text-secondary);font-size:11px;margin-top:2px}.gzh-highlight{color:#07c160;font-weight:700}.gzh-card-action{background:#07c1601a;color:#06ad56;padding:6px 14px;border-radius:20px;font-size:12px;font-weight:700;white-space:nowrap;flex-shrink:0;margin-left:12px}.gzh-modal-card{max-width:400px;width:100%}.gzh-modal-header{background:linear-gradient(135deg,#07c160,#06ad56)}.gzh-modal-body{text-align:center;padding:24px 20px 28px}.gzh-modal-icon{width:52px;height:52px;background:linear-gradient(135deg,#07c160,#06ad56);border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;box-shadow:0 4px 14px #07c16040}.gzh-modal-name{font-size:17px;font-weight:800;color:var(--text-primary);margin-bottom:6px}.gzh-modal-copied{font-size:13px;color:var(--success);margin-bottom:20px}.gzh-modal-steps{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:16px 14px;margin-bottom:20px}.gzh-step{display:flex;align-items:flex-start;gap:10px;padding:8px 0;border-bottom:1px solid var(--border-light)}.gzh-step:last-child{border-bottom:none}.gzh-step-num{width:22px;height:22px;background:linear-gradient(135deg,#07c160,#06ad56);color:#fff;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex-shrink:0}.gzh-step-text{font-size:13px;color:var(--text-primary);line-height:1.5;text-align:left}.gzh-step-text 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.history-summary{margin-bottom:10px}.history-tabs{display:flex;gap:6px}.history-tab--active{background:var(--bg-primary)!important;color:var(--primary)!important;box-shadow:0 1px 3px #00000014!important}.history-panel{max-height:min(35vh,260px);overflow-y:auto;-webkit-overflow-scrolling:touch}.history-row{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;margin-bottom:6px;gap:10px}.history-row:last-child{margin-bottom:0}.history-row-code{font-size:15px;font-weight:700;color:var(--primary);font-family:SF Mono,Courier New,monospace;font-variant-numeric:tabular-nums;letter-spacing:1px}.history-row-time{font-size:11px;color:var(--text-tertiary);flex-shrink:0}.history-empty{font-size:13px;color:var(--text-tertiary);text-align:center;padding:24px 10px}.history-footer{display:flex;align-items:center;justify-content:space-between;padding-top:10px;margin-top:6px;border-top:1px solid var(--border-light)}.history-meta{font-size:10px;color:var(--text-tertiary)}.history-clear-btn{font-size:11px;color:var(--text-tertiary);background:none;border:none;cursor:pointer;padding:2px 6px}.history-clear-btn:hover{color:var(--error)}.footer{text-align:center;padding:24px 16px 16px;color:var(--text-tertiary);font-size:11px;line-height:1.8}.footer a{color:var(--text-secondary);text-decoration:none}@media (max-width: 640px){.header .container{padding:12px 16px}.logo-text{font-size:15px}.stat-value{font-size:16px}.stat-label{font-size:9px}.main{padding:12px 0 90px}.submit-card,.list-card,.info-card,.history-card{padding:14px;border-radius:var(--radius-lg)}.submit-form{flex-direction:row}.code-input{flex:1;min-width:0}.submit-btn{width:auto;flex-shrink:0;padding:0 20px}.list-header{flex-direction:row;align-items:center}.code-number{font-size:16px}.filter-btn{font-size:11px;padding:4px 10px}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000073;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:20px}.modal-card{background:var(--bg-primary);border-radius:var(--radius-xl);width:100%;max-width:340px;box-shadow:var(--shadow-lg);overflow:hidden;animation:modalIn .25s ease}@keyframes modalIn{0%{opacity:0;transform:scale(.92) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:linear-gradient(135deg,var(--primary),var(--primary-light))}.modal-title{font-size:16px;font-weight:700;color:#fff}.modal-close{background:#fff3;border:none;color:#fff;font-size:18px;line-height:1;cursor:pointer;padding:0;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:.9;transition:opacity .2s}.modal-close:hover{opacity:1;background:#ffffff4d}.modal-body{padding:20px 18px;text-align:center}.modal-subtitle{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:4px}.modal-desc{font-size:12px;color:var(--text-secondary);margin-bottom:16px}.modal-steps{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.modal-step{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-secondary);border-radius:var(--radius-sm)}.step-num{width:22px;height:22px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}.step-text{font-size:13px;color:var(--text-primary);font-weight:500}.modal-code{font-size:28px;font-weight:800;color:var(--primary);letter-spacing:4px;font-family:SF Mono,Courier New,monospace;padding:14px;background:var(--primary-bg);border:2px dashed var(--primary);border-radius:var(--radius-md);margin-bottom:10px}.modal-copied{font-size:12px;color:var(--success);font-weight:600}.cross-promo-bar{padding:8px 0 0}.cross-promo-card{display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#fff5f0,#ffe8d6);border:1px solid rgba(255,80,0,.12);border-radius:12px;padding:10px 14px;cursor:pointer;transition:transform .15s,box-shadow .15s}.cross-promo-card:active{transform:scale(.98);box-shadow:0 2px 8px #ff500026}.cross-promo-left{display:flex;align-items:center;gap:12px}.cross-promo-icon{font-size:20px;width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:#ff50001a;border-radius:10px;flex-shrink:0}.cross-promo-text{display:flex;flex-direction:column;gap:2px}.cross-promo-title{font-size:14px;font-weight:600;color:var(--text-primary)}.cross-promo-desc{font-size:12px;color:var(--text-secondary)}.cross-promo-arrow{font-size:20px;color:var(--text-tertiary);font-weight:300}.toast-enter-active,.toast-leave-active{transition:all .25s ease}.toast-enter-from,.toast-leave-to{opacity:0;transform:translate(-50%) translateY(-16px)}