:root{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#1d1d1f;background:#f5f5f7;font-size:16px;--bg:#f5f5f7;--paper:#fff;--ink:#1d1d1f;--muted:#6e6e73;--line:#e9e9ed;--field:rgba(118,118,128,.08);--blue:#007aff;--info:#e7f2ff;--info-ink:#526478;--nav:rgba(118,118,128,.12)}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);line-height:1.5}body:before{content:"";position:absolute;z-index:0;pointer-events:none;top:15px;left:50%;transform:translateX(-50%);width:min(900px,100%);height:470px;background:radial-gradient(ellipse at 26% 43%,#168dff21,transparent 50%),radial-gradient(ellipse at 70% 40%,#ee58b21b,transparent 55%);filter:blur(23px)}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}h2{font-size:25px;line-height:1.4;letter-spacing:-.015em;font-weight:650}h3{font-size:18px}button,input,textarea,select{outline:none}button:focus-visible,a:focus-visible{outline:3px solid #69adff;outline-offset:4px}input,textarea,select{color:var(--ink);background:var(--field);border:1px solid transparent;border-radius:14px;padding:14px 18px;width:100%;min-height:52px;transition:border-color .15s,box-shadow .15s}input:focus,textarea:focus,select:focus{border-color:#007aff88;box-shadow:0 0 0 3px #007aff14}input::placeholder,textarea::placeholder{color:#96969d}label{font-size:14px;font-weight:550}em{color:#f04343;font-style:normal}small{font-size:12px}.muted,.intro,.field-note{color:var(--muted)}.intro{font-size:14px;line-height:1.8;margin-top:7px}.field-note{font-size:12px;line-height:1.7}.centered{text-align:center}.mono{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px}.break{overflow-wrap:anywhere}.row{display:flex;justify-content:space-between;align-items:center;gap:15px}[hidden]{display:none!important}.hero{position:relative;padding:88px 24px 0;text-align:center}.hero h1{font-size:64px;font-weight:700;line-height:1.1;letter-spacing:-2px}.gradient-title{background:linear-gradient(100deg,#138fff 0%,#8e63f6 24%,#f33584 50%,#ff4e31 76%,#ff9700 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.features{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:33px}.features>span{display:inline-flex;align-items:center;gap:9px;padding:9px 15px;background:var(--paper);border-radius:30px;box-shadow:0 4px 10px #00000007;font-size:13px;font-weight:550}.features img,.info img{height:16px;width:16px;flex-shrink:0;filter:invert(35%) sepia(96%) saturate(2651%) hue-rotate(200deg) brightness(102%) contrast(105%)}.theme-toggle{position:absolute;right:16px;top:16px;border:0;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--paper);box-shadow:0 4px 15px #00000006;z-index:3}.theme-toggle img{height:20px;width:20px}.recharge-wrap{position:relative;max-width:760px;margin:51px auto 0;padding:0 20px}.tabs{display:flex;justify-content:center;max-width:366px;background:var(--nav);padding:3px;border-radius:999px;margin:0 auto 24px;gap:0}.tabs button{flex:1;border:0;padding:9px 15px;background:transparent;color:var(--muted);font-size:14px;font-weight:500;border-radius:999px;line-height:18px;white-space:nowrap}.tabs button[aria-selected=true]{background:var(--paper);color:var(--ink);font-weight:650;box-shadow:0 2px 4px #0002}.panel{background:var(--paper);border-radius:32px;padding:44px;box-shadow:0 20px 45px #0000000d;margin-bottom:22px}.steps{list-style:none;display:flex;padding:0;margin:-12px 20px 36px;justify-content:space-between}.steps li{position:relative;text-align:center;width:25%;font-size:12px;color:#85858b;display:flex;flex-direction:column;align-items:center;gap:8px}.steps li:not(:last-child):after{content:"";position:absolute;top:15px;left:calc(50% + 30px);width:calc(100% - 60px);height:3px;background:#ededf0}.steps b{height:32px;width:32px;border-radius:50%;background:#efeff2;color:#86868b;display:grid;place-items:center;font-size:14px;font-weight:550}.steps li.active{color:var(--ink)}.steps li.active b{background:#007aff;color:#fff;box-shadow:0 0 0 5px #007aff17}.steps li.complete b{background:#e6f2ff;color:#007aff}.section-title{display:flex;justify-content:space-between;align-items:center;gap:12px}.step-tag{background:#e7f2ff;border-radius:20px;color:#007aff;font-size:12px;padding:5px 12px;font-weight:600;white-space:nowrap}.stack{display:flex;flex-direction:column;gap:12px;margin-top:23px}.stack>label{margin-top:0}.info{display:flex;align-items:flex-start;gap:12px;padding:16px 18px;background:var(--info);border-radius:18px;color:var(--info-ink);font-size:13px;line-height:1.8;margin-top:8px}.info img{margin-top:3px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;min-height:52px;padding:13px 24px;font-weight:600;font-size:16px;line-height:1.5;transition:filter .15s,transform .15s}.primary{color:white;background:linear-gradient(110deg,#2997ff,#0071e3 70%,#005bbd);box-shadow:0 7px 17px #007aff30}.primary:hover{filter:brightness(1.06)}.secondary{color:var(--ink);background:var(--nav)}.secondary:hover{filter:brightness(.98)}.full{width:100%}.stack>.primary{margin-top:8px}.button-group{display:flex;gap:12px;margin-top:14px}.grow{flex:1}.link-button{border:0;background:transparent;padding:5px 0;color:#0071e3;font-size:13px;cursor:pointer}.link-button:hover{text-decoration:underline}.plan-preview{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;background:var(--field);border-radius:16px;padding:19px 21px;margin:24px 0}.plan-preview>span{font-size:13px;color:var(--muted)}.plan-preview>strong{font-size:14px}.plan-preview small{flex-basis:100%;color:var(--muted)}.summary{margin:23px 0;background:var(--field);border-radius:18px;padding:21px;display:grid;gap:16px;font-size:14px}.summary>div{display:flex;justify-content:space-between;gap:20px}.summary dt{color:var(--muted);white-space:nowrap;flex-shrink:0}.summary dd{margin:0;text-align:right;min-width:0;overflow-wrap:anywhere}.check-label{display:flex;align-items:flex-start;gap:9px;font-weight:400;font-size:13px;color:var(--muted)}.check-label input{width:16px;height:16px;min-height:0;padding:0;flex:0 0 16px;margin:2px 0;accent-color:var(--blue)}.result-heading{text-align:center}.result-heading>img{height:42px;width:42px;margin:0 0 15px;filter:invert(35%) sepia(96%) saturate(2651%) hue-rotate(200deg) brightness(102%) contrast(105%)}.result-heading>img.success-icon{filter:invert(45%) sepia(80%) saturate(500%) hue-rotate(99deg)}.result-heading .intro{max-width:480px;margin:10px auto 0}.result-actions{display:flex;justify-content:center;gap:26px;margin:18px 0 9px}#start-over{margin-top:20px;min-height:44px;font-size:14px}progress{width:100%;height:5px;margin:22px 0 0;accent-color:var(--blue)}.error-message{margin:24px 0 0;padding:13px 17px;background:#fff0ec;color:#b03b2b;border:1px solid #f9d5ce;border-radius:14px;font-size:13px;line-height:1.7}.help-list{list-style:none;counter-reset:help;padding:0;margin:24px 0;display:grid;gap:23px}.help-list li{position:relative;padding-left:42px;counter-increment:help}.help-list li:before{content:counter(help);position:absolute;left:0;top:0;width:27px;height:27px;display:grid;place-items:center;color:#007aff;font-size:12px;border-radius:50%;background:var(--info)}.help-list strong{font-size:14px;font-weight:600}.help-list p{font-size:13px;color:var(--muted);line-height:1.85;margin-top:6px}footer{text-align:center;font-size:12px;color:#929297;margin:34px 0 42px}footer span{margin:0 8px}footer a:hover{color:#007aff}.admin-wrap{position:relative;width:calc(100% - 48px);max-width:1050px;margin:55px auto}.admin-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:26px}.admin-heading h1{font-size:30px;margin-top:10px}.admin-heading p{font-size:13px;color:var(--muted);margin-top:8px}.back-link{font-size:13px;color:#007aff}.small{min-height:38px;padding:8px 18px;font-size:13px}.admin-wrap .panel{padding:30px;border-radius:22px;box-shadow:0 10px 35px #00000007}.admin-wrap h2{font-size:20px}.admin-wrap .muted{font-size:13px;margin-top:8px}.login-panel{max-width:440px;margin:40px auto}.notice{padding:14px 18px;background:var(--info);color:var(--info-ink);border-radius:14px;font-size:13px;margin-bottom:24px}.admin-tabs{display:flex;gap:10px;margin-bottom:25px}.admin-tabs a{border-radius:999px;padding:9px 21px;font-size:14px;color:var(--muted);background:var(--nav)}.admin-tabs a.selected{background:#007aff;color:white}.generate-form{display:grid;grid-template-columns:1.4fr 1.5fr .65fr .65fr;gap:16px;align-items:end;margin-top:23px}.generate-form label{display:block;font-size:12px;margin-bottom:8px}.generate-form input,.generate-form select{font-size:13px;min-height:44px;padding:10px 12px;border-radius:11px}.generate-form button{grid-column:span 4;font-size:14px;min-height:44px}.new-codes{margin-top:25px}.new-codes textarea{font-family:ui-monospace,monospace;font-size:12px;line-height:1.8;margin-top:8px;resize:vertical;min-height:120px}.new-codes .muted{font-size:11px}.table-scroll{overflow:auto}.table-panel h2{margin-bottom:17px}.table-panel h2 small{font-weight:400;color:var(--muted);font-size:11px;margin-left:10px}table{width:100%;border-collapse:collapse;font-size:12px;text-align:left}th{font-weight:500;color:var(--muted);font-size:11px;padding:13px 10px;background:var(--field);white-space:nowrap}td{padding:16px 10px;border-bottom:1px solid var(--line);vertical-align:middle}td small{display:block;color:var(--muted);font-size:11px;margin-top:5px}td details p{max-width:230px;margin-top:8px}td summary{cursor:pointer}.badge{display:inline-flex;white-space:nowrap;align-items:center;padding:4px 9px;font-size:11px;font-weight:500;border-radius:8px;background:var(--field);color:var(--muted)}.badge.used,.badge.succeeded{background:#e6f6eb;color:#257a40}.badge.processing{background:#e7f2ff;color:#0071e3}.badge.locked,.badge.unknown,.badge.awaiting_verification{background:#fff1d9;color:#9a6b15}.badge.failed{background:#ffebe7;color:#ad4b3d}.inline-form{display:inline-block;margin-right:12px}.inline-form .link-button{font-size:11px}.actions{min-width:140px}.empty{padding:30px;text-align:center;color:var(--muted)}
:root[data-theme=dark]{color-scheme:dark;--bg:#111114;--paper:#212126;--ink:#f5f5f7;--muted:#aaaab2;--line:#36363d;--field:rgba(180,180,195,.09);--info:#1e3049;--info-ink:#a9c3df;--nav:rgba(180,180,195,.13)}[data-theme=dark] body:before{opacity:.75}[data-theme=dark] .theme-toggle img{filter:invert(1)}[data-theme=dark] .steps li:not(:last-child):after{background:#37373f}[data-theme=dark] .steps b{background:#383840;color:#b0b0b8}[data-theme=dark] .steps li.active b{background:#007aff;color:white}[data-theme=dark] .steps li.complete b{background:#213f60;color:#91c7ff}[data-theme=dark] .step-tag{background:#203c5e;color:#88c2ff}[data-theme=dark] .error-message{background:#452925;color:#ffb1a3;border-color:#5d342d}[data-theme=dark] .badge.succeeded,[data-theme=dark] .badge.used{background:#1c3b29;color:#84ce9e}[data-theme=dark] .badge.processing{background:#203d5e;color:#91c5ff}[data-theme=dark] .badge.failed{background:#492a27;color:#efb3a8}[data-theme=dark] .badge.locked,[data-theme=dark] .badge.unknown,[data-theme=dark] .badge.awaiting_verification{background:#433720;color:#e3c27b}
@media(min-width:1500px){.hero{padding-top:100px}.recharge-wrap{margin-top:55px}}
@media(max-width:760px){.hero{padding-top:88px}.hero h1{font-size:44px;letter-spacing:-1.5px}.features{gap:8px;margin-top:25px}.features>span{font-size:11px;padding:8px 12px;gap:6px}.features img{height:14px;width:14px}.recharge-wrap{margin-top:36px;padding:0 20px}.panel{padding:32px;border-radius:26px}.steps{margin:-3px 0 31px}.steps li:not(:last-child):after{left:calc(50% + 23px);width:calc(100% - 46px)}h2{font-size:23px}.hero .features{max-width:530px;margin-left:auto;margin-right:auto}.summary{font-size:13px}.admin-wrap{width:calc(100% - 32px);margin:35px auto}.generate-form{grid-template-columns:1fr 1fr}.generate-form button{grid-column:span 2}.admin-wrap .panel{padding:23px}.admin-heading h1{font-size:26px}}
@media(max-width:480px){.hero{padding:83px 16px 0}.hero h1{font-size:33px;letter-spacing:-1px;white-space:nowrap}.features{gap:8px;margin-top:25px;max-width:310px!important}.features>span{font-size:11px;min-width:130px;justify-content:center;padding:7px 10px}.recharge-wrap{margin-top:30px;padding:0 16px}.tabs{max-width:340px;margin-bottom:19px}.tabs button{font-size:13px;padding:9px 12px}.panel{padding:27px 22px;border-radius:24px;margin-bottom:18px}.steps{margin:0 -4px 30px}.steps li{font-size:10px;gap:8px}.steps b{height:28px;width:28px;font-size:12px}.steps li:not(:last-child):after{top:13px;left:calc(50% + 23px);width:calc(100% - 46px);height:2px}.steps li.active b{box-shadow:0 0 0 4px #007aff17}h2{font-size:21px}.intro{font-size:13px;line-height:1.8}.step-tag{font-size:10px;padding:4px 9px}.stack{gap:11px;margin-top:23px}input,textarea,select{font-size:16px;padding:13px 15px}.stack>label{font-size:13px}.info{font-size:12px;padding:14px;border-radius:15px;gap:9px}.primary,.secondary{font-size:14px;min-height:49px;padding:12px 20px}.button-group{gap:9px}.button-group .secondary{padding:12px 17px}.summary{padding:17px;gap:15px;margin:22px 0;font-size:12px}.summary>div{gap:12px}.summary dd.mono{font-size:10px}.field-note{font-size:11px}.plan-preview{padding:17px}.plan-preview>strong{font-size:13px}.result-heading>img{height:36px;width:36px}.result-actions .link-button{font-size:12px}.help-list{gap:20px}.help-list li{padding-left:36px}.help-list strong{font-size:13px}.help-list p{font-size:12px}.help-list li:before{width:24px;height:24px}.theme-toggle{width:39px;height:39px;right:14px;top:14px}.theme-toggle img{height:18px;width:18px}footer{font-size:10px;margin-top:28px}footer span{margin:0 5px}.admin-heading h1{font-size:25px}.admin-heading p{font-size:11px}.admin-heading{gap:10px}.admin-wrap .panel{padding:23px 18px;border-radius:20px}.generate-form{gap:15px 10px}.generate-form select{font-size:12px}.admin-wrap .small{min-height:35px;font-size:11px;padding:7px 14px}.admin-tabs a{font-size:13px}.admin-wrap h2{font-size:19px}.admin-wrap .muted{font-size:12px}.table-panel{padding-left:15px!important;padding-right:15px!important}th,td{padding:12px 9px}table{font-size:11px}.login-panel{margin-top:25px}.section-title{gap:7px}}
@media(max-width:360px){.hero h1{font-size:29px}.panel{padding:25px 18px}.features>span{min-width:122px;font-size:10px}.recharge-wrap{padding:0 12px}.steps li{font-size:9px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.mode-note{margin:-22px auto 21px;text-align:center;font-size:12px;color:var(--muted);line-height:1.8}.session-label{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}.session-label a{font-size:12px}.session-label label{font-size:14px}#session-json{font-family:ui-monospace,SFMono-Regular,monospace;font-size:12px;line-height:1.7;resize:vertical;min-height:150px}#session-fields .field-note{margin-top:9px}.tutorial-video{margin:24px 0 27px}.tutorial-video video{display:block;width:100%;height:auto;aspect-ratio:997/540;background:#131318;border-radius:16px}.tutorial-video .field-note{margin-top:10px}.help-list a{color:#0071e3;text-decoration:underline;text-underline-offset:3px}#captcha-note{margin:10px 0}#captcha-link{margin-bottom:5px}#email[readonly]{color:var(--muted)}
@media(max-width:480px){.mode-note{font-size:10px;margin:-8px 0 17px}.session-label{align-items:flex-start}.session-label label{font-size:13px}.session-label a{font-size:10px}#session-json{font-size:12px}.tutorial-video video{border-radius:12px}}