:root{--ink:#172842;--muted:#708098;--accent:#245de6;--accent-dark:#1948c0;--line:#dfe7f1;--canvas:#f4f7fc;--danger:#c2373b;--mint:#edf3ff;--white:#fff;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--canvas);font-size:16px;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}button{cursor:pointer;border:0}button:disabled{cursor:not-allowed;opacity:.5}a{color:inherit;text-decoration:none}[hidden]{display:none!important}h1,h2,h3,p{margin:0}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #72a7ff;outline-offset:4px}input:focus-visible,textarea:focus-visible{outline:3px solid #b3ccff;outline-offset:1px;border-color:var(--accent)}
.site-header{max-width:1280px;margin:auto;min-height:88px;padding:18px 56px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:750;letter-spacing:.02em}.brand img{object-fit:contain;border-radius:12px;box-shadow:0 2px 12px #17376312}.brand-caption{display:block;margin-top:3px;font-size:11px;font-weight:500;letter-spacing:.12em;color:var(--muted);white-space:nowrap}.site-header nav{display:flex;align-items:center;gap:26px;font-size:13px;color:#52627a}.site-header nav a{padding:9px 0}.site-header nav a:last-child{background:#fff;border:1px solid var(--line);padding:10px 15px;border-radius:8px}.site-header nav a:hover{color:var(--accent)}main{max-width:1280px;margin:auto;padding:12px 56px 48px}.back-home{display:inline-flex;align-items:center;margin:0 0 18px;font-size:13px;color:var(--accent)}
.welcome-shell{position:relative;isolation:isolate;overflow:hidden;border-radius:24px;background:linear-gradient(118deg,#10294e 0%,#153c73 64%,#23548e 100%);box-shadow:0 16px 44px #17396513}.welcome-shell:before{content:"";position:absolute;z-index:-1;left:-150px;bottom:-345px;width:650px;height:650px;border:1px solid #ffffff0b;border-radius:50%;box-shadow:0 0 0 58px #ffffff03,0 0 0 120px #ffffff03}.welcome-shell:after{content:"";position:absolute;z-index:-1;right:-100px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,#61afff25,transparent 65%)}.welcome-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:center;gap:52px;padding:34px 40px}.page-intro{min-width:0}.eyebrow{display:flex;align-items:center;gap:11px;font-size:10px;font-weight:650;letter-spacing:.16em;color:#aac8f4}.eyebrow-line{width:24px;height:2px;background:#71afff}h1{font-size:clamp(34px,3.6vw,48px);letter-spacing:-1.6px;line-height:1.24;font-weight:700;margin:22px 0 18px;color:#fff}h1 span{color:#83bdff}.page-intro p{color:#bdcfe7;font-size:14px;line-height:1.9;max-width:420px}.hero-notes{display:flex;gap:16px;flex-wrap:wrap;margin-top:24px;font-size:11px;color:#d0def3}.hero-notes span:before{content:"✓";display:inline-block;margin-right:6px;color:#8ebdff}.channel-grid{display:grid;gap:10px;min-width:0}.channel-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:5px}.channel-heading h2{font-size:15px;letter-spacing:.02em;color:#fff;font-weight:600}.channel-heading>span{font-size:8px;letter-spacing:.12em;color:#b1c7e5}.channel-card{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid #ffffff4d;border-radius:14px;padding:18px 20px;position:relative;transition:transform .18s,box-shadow .18s}.channel-card:hover{transform:translateX(4px);box-shadow:0 5px 25px #030f2e22}.channel-number{font:500 13px/1 Consolas,monospace;color:#8a9ebb;align-self:flex-start;padding-top:6px}.channel-content{min-width:0;flex:1}.mode-badge{display:inline-block;background:#edf3ff;border-radius:4px;padding:3px 6px;font-size:9px;letter-spacing:.04em;color:#315bd7}.channel-card.ph .mode-badge{background:#ebf5fb;color:#2377a4}.channel-card h2{font-size:18px;line-height:1.35;font-weight:700;margin:5px 0;color:#183351}.channel-card p{font-size:11px;line-height:1.7;color:#718198}.channel-go{display:inline-block;margin-top:9px;font-size:11px;color:var(--accent);font-weight:600}.channel-arrow{display:grid;place-items:center;flex-shrink:0;align-self:center;width:33px;height:33px;border:1px solid #e1e9f5;border-radius:50%;color:var(--accent);font-size:19px;background:#f9fbff}.welcome-grid:has(#channel-picker[hidden]){grid-template-columns:1fr;padding:30px 40px}.welcome-grid:has(#channel-picker[hidden]) h1{font-size:36px;margin:16px 0 10px}.welcome-grid:has(#channel-picker[hidden]) .hero-notes{display:none}
.flow-strip{display:grid;grid-template-columns:repeat(3,1fr);list-style:none;padding:22px 12px;margin:0;gap:20px}.flow-strip li{display:flex;align-items:center;gap:14px;min-width:0}.flow-strip li+li{border-left:1px solid var(--line);padding-left:32px}.flow-strip li>span{color:#456696;font:500 15px/1.2 Consolas,monospace}.flow-strip strong{font-size:12px;font-weight:650}.flow-strip p{font-size:10px;line-height:1.6;color:var(--muted);margin-top:4px}.purchase-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 26px;border:1px solid var(--line);border-radius:13px;background:#fff;padding:18px 22px}.purchase-copy{display:flex;align-items:center;gap:14px}.purchase-icon{display:grid;place-items:center;flex-shrink:0;width:38px;height:38px;border-radius:10px;background:#edf3ff;color:var(--accent);font-size:23px}.purchase-strip strong{font-size:14px;font-weight:650}.purchase-strip p{font-size:12px;line-height:1.7;color:var(--muted);margin-top:4px}.shop-button{display:inline-flex;align-items:center;justify-content:center;gap:25px;min-height:42px;background:var(--accent);color:#fff;padding:10px 17px;font-size:12px;border-radius:8px;white-space:nowrap;font-weight:600}.shop-button:hover{background:var(--accent-dark)}
.workspace{display:grid;grid-template-columns:270px minmax(0,1fr);gap:24px;align-items:start}.recharge-card{grid-column:2;grid-row:1;border:1px solid var(--line);border-radius:18px;background:#fff;min-width:0;overflow:hidden;box-shadow:0 8px 28px #1e396e05}.panel{padding:30px}.form-heading{padding-bottom:22px;border-bottom:1px solid #e7edf6}.section-kicker{font:600 9px/1.5 "Segoe UI",sans-serif;letter-spacing:.14em;color:#6582ad}.form-section-title{font-size:22px;line-height:1.4;margin:8px 0}.form-heading p{font-size:12px;line-height:1.7;color:var(--muted)}.form-field{margin:22px 0}label,.field-title{font-size:13px;font-weight:600}.form-field label{display:block;margin-bottom:10px}input:not([type=checkbox]),textarea{width:100%;border:1px solid #d9e3f1;border-radius:8px;padding:13px 14px;line-height:1.5;font-size:14px;color:var(--ink);background:#fafcff;min-width:0;transition:border-color .15s}input::placeholder,textarea::placeholder{color:#91a0b4}textarea{resize:vertical;min-height:146px;font:12px/1.8 Consolas,monospace;overflow-wrap:anywhere}.inline-row{display:flex;align-items:stretch;gap:9px}.inline-row input{flex:1;min-width:0}.inline-row button{padding:0 16px;border-radius:8px;background:#eaf1ff;color:#255bca;font-size:12px;flex-shrink:0;font-weight:600}.inline-row button:hover:not(:disabled){background:#dae7ff}.field-hint{font-size:11px;line-height:1.8;color:var(--muted);margin-top:9px}.field-hint a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.code-help{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 14px;margin-top:9px}.code-help .field-hint{margin:0;font-size:11px}.code-help>a{color:var(--accent);font-size:12px;text-decoration:underline;text-underline-offset:3px;white-space:nowrap}.account-summary{font-size:12px;line-height:1.8;padding:13px 15px;border-left:3px solid #91b4f4;background:#eff5ff;border-radius:0 8px 8px 0;overflow-wrap:anywhere}.service-note{font-size:12px;line-height:1.8;color:#806128;background:#fff8e9;border:1px solid #f1e4c7;padding:12px 14px;border-radius:8px;margin:18px 0}.agreement{display:flex;align-items:flex-start;gap:8px;line-height:1.8;font-size:12px;font-weight:400;margin:18px 0}.agreement input{accent-color:var(--accent);flex-shrink:0;width:15px;height:15px;margin:4px 0 0}.primary-button{width:100%;min-height:49px;border-radius:8px;background:var(--accent);color:#fff;font-size:14px;font-weight:650;padding:13px 20px;transition:background .15s}.primary-button:hover:not(:disabled){background:var(--accent-dark)}.submit-note{font-size:11px;line-height:1.8;text-align:center;color:var(--muted);margin-top:11px}.field-error{color:var(--danger);font-size:12px;line-height:1.8;margin:9px 0}.submit-progress{font-size:12px;line-height:1.8;background:#edf4ff;color:#325783;border-radius:8px;padding:13px 15px;margin-top:13px}#validation-message{font-size:12px;line-height:1.8;margin-top:10px}#validation-message[data-state=ok]{background:#e9f7ef;color:#21744d;border-radius:7px;padding:10px 12px}#validation-message[data-state=error]{color:var(--danger)}#validation-message[data-state=pending]{color:#5d7698}
.summary-column{grid-column:1;grid-row:1;display:grid;gap:18px;min-width:0}.package-card{padding:22px;border-radius:16px;border:1px solid #d5e1f5;background:linear-gradient(145deg,#e5efff,#f0f5ff)}.package-top{display:flex;align-items:center;justify-content:space-between;gap:8px;color:#637b9e;font-size:11px}.mini-badge{font-size:9px;white-space:nowrap;padding:4px 6px;border-radius:4px;color:#3b64a2;background:#ffffffa8}.package-brand{font-size:15px;font-weight:700;margin:30px 0 18px;color:#21487e}.package-brand span{display:block;font-size:9px;letter-spacing:.16em;margin-top:6px;color:#6382ad;font-weight:500}.package-name{font-size:22px;font-weight:650;line-height:1.4;margin-bottom:10px;color:#1c3b65;overflow-wrap:anywhere}.package-card>p{font-size:12px;line-height:1.8;color:#6c82a2}.package-bottom{display:flex;justify-content:space-between;gap:10px;font-size:11px;padding-top:18px;margin-top:23px;border-top:1px solid #cddcf0;color:#6882a7}.package-bottom strong{font-size:11px;color:#315f9c;font-weight:600}.guide-card{padding:23px 22px;border:1px solid var(--line);background:#ffffffa8;border-radius:16px}.guide-card h2{font-size:14px}.guide-card ol{list-style:none;padding:0;margin:22px 0;display:grid;gap:21px}.guide-card li{display:flex;gap:12px}.guide-card li>span{font:11px/1.6 Consolas,monospace;color:#7290b9}.guide-card strong{font-size:12px;font-weight:600}.guide-card p{font-size:11px;line-height:1.7;margin-top:4px;color:var(--muted)}.guide-card>a{display:block;font-size:11px;line-height:1.8;color:var(--accent);border-top:1px solid var(--line);padding-top:16px}
.lookup-box{scroll-margin-top:24px;margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:17px;padding:28px;display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:center}.lookup-intro h2{font-size:22px;line-height:1.5;margin:8px 0}.stage-description{font-size:12px;line-height:1.8;color:var(--muted)}.lookup-box label{display:block;font-size:11px;margin-bottom:9px;color:#667d9a}.lookup-box input{font-size:12px;font-family:Consolas,monospace}.lookup-box .inline-row button{background:var(--accent);color:#fff;display:flex;align-items:center;gap:12px}.lookup-box .inline-row button:hover{background:var(--accent-dark)}.lookup-box>.result-box{grid-column:1/-1;margin-top:0}.result-box{scroll-margin-top:24px;background:#f0f5fd;border:1px solid #d6e2f4;border-radius:12px;padding:22px;margin-top:24px}.result-box:focus{outline:3px solid #a9c9ff;outline-offset:3px}.result-box h3{font-size:21px;line-height:1.5;margin-bottom:10px}.result-box p{font-size:12px;line-height:1.9;color:#657c9c;overflow-wrap:anywhere}.result-heading{display:flex;align-items:center;gap:13px;margin-bottom:15px}.result-heading h3{margin:7px 0 0;font-size:23px}.result-mark{display:grid;place-items:center;flex-shrink:0;width:47px;height:47px;border-radius:12px;background:#dce8fc;color:#3a68ae;font-size:26px}.status-success{background:#edf9f2;border:2px solid #55a77c}.status-success h3{color:#176341}.status-success .result-mark{background:#218457;color:#fff}.status-warning{background:#fff9ed;border-color:#ead5a5}.status-warning .result-mark{background:#f8e9c8;color:#9b6f25}.receipt-box{margin-top:12px;font-size:11px!important;font-family:Consolas,monospace}.result-box .query-feedback{font-size:11px;line-height:1.8;padding:10px 12px;background:#ffffffb3;border-radius:7px;margin:12px 0}.text-button{background:transparent;color:var(--accent);font-size:12px;font-weight:600;padding:5px 0;min-height:38px}.text-button:hover{text-decoration:underline}.query-actions{display:flex;gap:18px;flex-wrap:wrap;margin-top:6px}.query-actions button{width:auto}.account-link{display:inline-block;background:#218457;color:#fff;font-size:12px;font-weight:600;padding:11px 14px;border-radius:7px;margin-top:12px}.privacy-line{font-size:11px;line-height:1.8;color:var(--muted);margin-top:16px}
.help-section{display:grid;grid-template-columns:1fr 1.7fr;gap:50px;padding:36px 8px;margin-top:28px;border-top:1px solid var(--line);scroll-margin-top:24px}.help-intro .eyebrow{color:#6382ac}.help-intro h2{font-size:27px;line-height:1.5;margin:8px 0}.help-intro p{font-size:12px;line-height:1.8;color:var(--muted)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 0;font-size:13px;font-weight:600;cursor:pointer}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font-size:20px;color:#8497b3;font-weight:400}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list details p{font-size:12px;line-height:1.9;color:var(--muted);padding:0 26px 19px 0}.customer-service{scroll-margin-top:24px;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:28px 30px;border:1px solid #dbe5f4;border-radius:16px;background:#ecf2fc}.customer-service .eyebrow{color:#6382ac;font-size:9px}.customer-service h2{font-size:22px;margin:8px 0 10px}.customer-service p{color:#697e9b;font-size:12px;line-height:1.9}.customer-service .support-safety{font-size:11px;margin-top:8px}.support-account{flex-shrink:0;min-width:205px}.support-account label{display:block;font-size:10px;margin-bottom:6px;color:#6382ac}.support-account input{font:600 22px/1.4 Consolas,monospace;background:transparent;border:0;padding:0;margin:0 0 8px;letter-spacing:.05em;color:#264c83}.support-account button{background:#fff;border:1px solid #cedbee;border-radius:7px;padding:9px 15px;color:#355e97;font-size:11px}.site-footer{max-width:1168px;margin:auto;border-top:1px solid var(--line);padding:24px 0 28px;display:flex;justify-content:space-between;gap:20px;color:#8090a7;font-size:10px;letter-spacing:.03em}#toast{position:fixed;z-index:50;left:50%;bottom:28px;transform:translateX(-50%);background:#173052;color:#fff;box-shadow:0 8px 32px #15396026;border-radius:9px;padding:13px 20px;max-width:90vw;font-size:12px;line-height:1.7;text-align:center}.admin-title h1{color:var(--ink)}
@media(min-width:1450px){.site-header,main{max-width:1380px}.welcome-grid{padding:44px 48px;gap:74px}.channel-card{padding:21px 24px}.channel-card h2{font-size:21px}.channel-card p{font-size:12px}.channel-go{font-size:12px}.flow-strip{padding-top:26px;padding-bottom:26px}}
@media(max-width:1000px){.site-header{padding:18px 28px}main{padding:10px 28px 38px}.welcome-grid{padding:30px;gap:26px;grid-template-columns:1fr 1fr}h1{font-size:37px}.channel-card{padding:16px;gap:11px}.channel-card h2{font-size:16px}.channel-number{font-size:11px}.channel-heading>span{display:none}.flow-strip li+li{padding-left:20px}.site-footer{margin:0 28px}.workspace{grid-template-columns:230px minmax(0,1fr);gap:20px}.panel{padding:24px}.lookup-box{grid-template-columns:1fr 1.2fr;padding:24px}.lookup-intro h2{font-size:19px}}
@media(max-width:760px){.site-header{min-height:80px;padding:16px 22px}.site-header nav{gap:16px;font-size:11px}.site-header nav a:first-child{display:none}.site-header nav a:last-child{padding:8px 10px}.brand{font-size:21px;gap:9px}.brand img{width:39px;height:39px}.brand-caption{font-size:9px}main{padding:8px 20px 32px}.welcome-grid{grid-template-columns:1fr;padding:28px;gap:28px}.welcome-shell{border-radius:19px}h1{font-size:38px;margin:18px 0 14px}.page-intro p{font-size:13px}.hero-notes{margin-top:18px;font-size:10px}.channel-heading>span{display:block}.channel-heading h2{font-size:13px}.channel-card{padding:17px 19px}.channel-card h2{font-size:18px}.channel-card p{font-size:11px}.channel-number{font-size:12px}.channel-grid{gap:9px}.flow-strip{gap:10px;padding:20px 5px}.flow-strip li{gap:8px}.flow-strip li+li{padding-left:12px}.flow-strip p{display:none}.flow-strip strong{font-size:11px}.flow-strip li>span{font-size:12px}.purchase-strip{padding:16px;gap:15px}.purchase-strip strong{font-size:13px}.purchase-strip p{font-size:11px}.purchase-icon{display:none}.shop-button{font-size:11px;gap:15px;padding:10px 13px}.workspace{grid-template-columns:1fr}.recharge-card{grid-column:1;grid-row:1}.summary-column{grid-column:1;grid-row:2;grid-template-columns:1fr 1fr}.welcome-grid:has(#channel-picker[hidden]){padding:25px 28px}.welcome-grid:has(#channel-picker[hidden]) h1{font-size:30px}.lookup-box{grid-template-columns:1fr;gap:20px;padding:24px}.lookup-intro h2{font-size:21px}.help-section{grid-template-columns:1fr;gap:18px;padding:30px 3px}.help-intro h2{font-size:24px}.customer-service{padding:24px;gap:25px}.customer-service h2{font-size:20px}.support-account{min-width:165px}.support-account input{font-size:20px}.site-footer{margin:0 20px;padding:21px 0 25px;flex-wrap:wrap;font-size:9px}}
@media(max-width:480px){.site-header{padding:15px 16px}.site-header nav{gap:13px}.brand-caption{letter-spacing:.04em}.brand img{width:35px;height:35px}main{padding-left:14px;padding-right:14px}.welcome-grid{padding:25px 22px;gap:25px}.eyebrow{font-size:9px}h1{font-size:35px;letter-spacing:-1px}.channel-card{padding:16px 15px;gap:12px}.channel-card h2{font-size:17px}.channel-heading>span{font-size:7px}.channel-arrow{width:30px;height:30px}.hero-notes{gap:15px}.purchase-strip{gap:15px;align-items:flex-start}.purchase-copy strong{font-size:12px}.purchase-strip p{font-size:10px;max-width:165px}.shop-button{font-size:10px;min-height:40px;gap:9px;padding:10px 11px}.flow-strip{padding:18px 2px;gap:7px}.flow-strip li{gap:6px}.flow-strip li+li{padding-left:10px}.flow-strip strong{font-size:10px}.flow-strip li>span{font-size:11px}.panel{padding:23px 20px}.form-section-title{font-size:20px}.inline-row{gap:7px}.inline-row button{font-size:11px;padding:0 12px}input:not([type=checkbox]){font-size:12px;padding:12px}.summary-column{grid-template-columns:1fr}.package-brand{margin:22px 0 14px}.guide-card{padding:21px}.guide-card ol{grid-template-columns:repeat(3,1fr);gap:12px}.guide-card li{display:block}.guide-card strong{display:block;margin-top:5px;font-size:11px}.guide-card p{font-size:10px}.lookup-box{padding:22px 20px}.lookup-box input{font-size:10px}.customer-service{display:block;padding:24px 22px}.support-account{display:grid;grid-template-columns:1fr auto;align-items:center;gap:0 18px;margin-top:22px}.support-account label{grid-column:1}.support-account input{grid-column:1}.support-account button{grid-column:2;grid-row:1/3}.site-footer{margin:0 14px}.site-footer span:nth-child(2){font-size:9px}.result-heading h3{font-size:20px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important;scroll-behavior:auto!important}}