:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#20242c;background:#fff;font-size:14px;line-height:1.6;--line:#e5e7eb;--muted:#6b7280;--blue:#2563eb;--green:#147d60}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}a{color:inherit;text-decoration:none}button,a,input,textarea,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}button,a.primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:6px;padding:9px 14px;min-height:40px;font-weight:600}button svg,a svg,.item-heading svg{width:18px;height:18px;flex-shrink:0}svg{width:20px;height:20px}input,select,textarea{background:white;border:1px solid #d1d5db;border-radius:5px;min-width:0;width:100%;padding:10px 12px;color:inherit}input:focus,textarea:focus,select:focus{outline:2px solid #bfdbfe;border-color:var(--blue)}textarea{resize:vertical;min-height:110px}.primary{background:var(--blue);color:white}.primary:hover{background:#1d4ed8}.outline{background:white;border-color:#d1d5db;color:#374151}.outline:hover,.icon-button:hover{background:#f3f4f6}.text-button{background:transparent;color:var(--muted);padding:6px 8px}.text-button:hover{color:var(--blue)}.icon-button{padding:6px;width:36px;height:36px;min-height:36px;background:transparent;flex-shrink:0}.danger{color:#b91c1c}.wrap{max-width:1040px;margin:auto;padding-left:28px;padding-right:28px}.topbar{height:72px;border-bottom:1px solid var(--line)}.top-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-size:22px;font-weight:750;white-space:nowrap}.brand span{font-size:14px;font-weight:500;color:var(--muted);border-left:1px solid #d1d5db;margin-left:12px;padding-left:12px}.text-link{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}.portal{padding-top:42px}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}h1,h2,h3,p{margin-top:0}h1{font-size:24px;font-weight:650;line-height:1.4;margin-bottom:0}h2{font-size:18px;font-weight:650;margin-bottom:0}h3{font-size:15px;font-weight:650;margin-bottom:0}.tag,.badge{border-radius:4px;font-size:12px;background:#eff6ff;color:#1d4ed8;padding:3px 8px;white-space:nowrap}.redeem-section{padding-bottom:30px;border-bottom:1px solid var(--line)}.redeem-form{display:flex;gap:10px;max-width:680px}.redeem-form input{flex:1;min-height:48px}.redeem-form button{min-width:104px}.status{min-height:23px;font-size:13px;color:var(--muted);margin:12px 0 0}.status.error{color:#b91c1c}.status.success{color:var(--green)}#purchase{padding:30px 0;border-bottom:1px solid var(--line)}.purchase-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.purchase-item{border:1px solid var(--line);border-radius:6px;padding:22px;min-height:220px;overflow-wrap:anywhere}.item-heading{display:flex;align-items:center;gap:9px;margin-bottom:20px;color:#374151}.item-heading svg{color:var(--blue)}.account-item .item-heading svg{color:var(--green)}.account-count{color:var(--muted)}.account-count strong{font-size:26px;font-weight:650;color:var(--green);padding-right:4px}.account-item .primary{background:var(--green)}.download{width:100%}.license-code{padding:9px 10px;background:#f5f6f8;border-radius:4px;font:13px ui-monospace,monospace;overflow-wrap:anywhere;margin-bottom:8px}.actions{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.muted{color:var(--muted)}.small{font-size:12px}.purchase-item .small{margin:8px 0 0}.tutorial-section{padding:30px 0;border-bottom:1px solid var(--line)}.prose{white-space:pre-wrap;line-height:1.9;overflow-wrap:anywhere;color:#4b5563}.tutorial-row{padding:24px 0 0}.tutorial-row h3{margin-bottom:12px}.tutorial-row img{display:block;max-width:100%;max-height:640px;object-fit:contain}.image-button{display:block;padding:0;border:0;background:transparent;min-height:0;text-align:left}.tutorial-row video{display:block;width:100%;max-height:600px;background:#111;border-radius:4px}.tutorial-row .prose{margin-top:12px}.support-section{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:30px 0}.support-section h2{margin-bottom:12px}.support-section .small{margin-top:12px}.qr-area{display:flex;flex-direction:column;align-items:center;gap:8px}.qr-area img{width:116px;height:180px;object-fit:contain}.footer{border-top:1px solid var(--line);padding-top:18px;padding-bottom:24px;color:#9ca3af;font-size:12px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#20242c;color:white;border-radius:6px;padding:10px 18px;z-index:1000;max-width:calc(100vw - 32px);text-align:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}dialog{border:none;padding:40px 20px 20px;border-radius:6px;max-width:95vw;max-height:95vh}dialog::backdrop{background:#0009}dialog img{display:block;max-width:calc(95vw - 40px);max-height:calc(95vh - 70px);object-fit:contain}.dialog-close{position:absolute;right:5px;top:2px}[hidden]{display:none!important}
/* Administration uses the same compact, unframed section layout. */
.tutorial-section .prose .tutorial-alert:first-child{font-size:22px;line-height:1.5;padding:14px 16px}@media(max-width:620px){.tutorial-section .prose .tutorial-alert:first-child{font-size:20px}}
.purchase-name{position:relative}.preset-options{position:absolute;left:0;right:0;top:100%;z-index:10;background:#fff;border:1px solid #d1d5db;border-radius:5px;box-shadow:0 8px 20px #0001;max-height:252px;overflow:auto}.preset-options button{display:block;text-align:left;width:100%;border-radius:0;font-size:13px;font-weight:400;background:#fff;color:#20242c;padding:9px 12px}.preset-options button:hover,.preset-options button:focus{background:#eff6ff;color:#1d4ed8;outline:none}.tutorial-section .prose{white-space:normal}.tutorial-section .prose h3{font-size:16px;color:#20242c;margin:24px 0 10px}.tutorial-section .prose p{margin:0 0 12px}.tutorial-section .prose strong{font-weight:700;color:#20242c}.tutorial-section .prose .tutorial-alert{color:#b91c1c;font-size:16px;font-weight:700;border-left:3px solid #dc2626;padding:8px 12px;background:#fef2f2}.tutorial-section .prose .tutorial-alert strong{color:inherit}
.admin-wrap{max-width:1240px}.login{max-width:380px;margin:80px auto;padding:0 20px}.login h1{margin-bottom:24px}.field{display:block;margin-bottom:16px;font-size:13px;color:#4b5563}.field input,.field select,.field textarea{display:block;margin-top:6px}.login .primary{width:100%}.admin-main{padding-top:28px}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:24px;overflow:auto}.tabs button{border-radius:0;border-bottom:2px solid transparent;background:transparent;color:var(--muted);white-space:nowrap}.tabs button[aria-selected=true]{border-bottom-color:var(--blue);color:var(--blue)}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid var(--line);margin-bottom:24px;padding-bottom:24px}.stat{padding-left:20px;border-left:1px solid var(--line)}.stat:first-child{padding-left:0;border:none}.stat span{font-size:12px;color:var(--muted);display:block}.stat strong{font-size:26px;font-weight:650}.admin-grid{display:grid;grid-template-columns:360px minmax(0,1fr);gap:32px}.admin-grid>section+section{border-left:1px solid var(--line);padding-left:32px}.admin-grid h2{margin-bottom:18px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.check{display:flex;align-items:center;gap:8px;margin:12px 0 18px;font-size:13px;color:#4b5563}.check input{width:16px;height:16px;margin:0}.table-scroll{overflow:auto}table{width:100%;border-collapse:collapse;text-align:left;font-size:12px}th{font-weight:500;color:var(--muted);background:#f9fafb}td,th{border-bottom:1px solid var(--line);padding:10px 8px;vertical-align:middle}td{overflow-wrap:anywhere}td .actions{flex-wrap:nowrap}.nowrap{white-space:nowrap}.pager{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin-top:14px;color:var(--muted);font-size:12px}.toolbar{display:flex;align-items:center;gap:8px;margin-bottom:12px}.toolbar input{flex:1}.empty{padding:30px 10px;color:var(--muted);text-align:center}.subsection{padding-top:24px;margin-top:24px;border-top:1px solid var(--line)}details{margin:16px 0}summary{cursor:pointer;color:var(--muted);font-size:13px}details .field{margin-top:12px}.notice{font-size:12px;color:var(--muted);margin-bottom:16px;line-height:1.7}.tutorial-admin-item{border-bottom:1px solid var(--line);padding:16px 0}.tutorial-admin-item h3{margin-bottom:8px}.tutorial-admin-item img{max-height:150px;max-width:100%;display:block;margin:10px 0}.tutorial-admin-item video{max-height:180px;max-width:100%;display:block;margin:10px 0}.tutorial-admin-item .prose{font-size:12px;max-height:110px;overflow:auto}.count-note{font-size:13px;color:var(--green);margin-bottom:18px}.dialog-form{width:460px;max-width:calc(95vw - 40px)}.dialog-form h2{margin-bottom:18px}.badge.gray{background:#f3f4f6;color:#6b7280}.badge.red{background:#fef2f2;color:#b91c1c}.badge.green{background:#ecfdf5;color:#047857}
.admin-main .table-scroll{max-height:calc(100dvh - 340px);min-height:120px;overflow:auto;overscroll-behavior:contain}.admin-main th{position:sticky;top:0;z-index:1;background:var(--bg)}.admin-main .admin-grid{height:calc(100dvh - 255px);min-height:360px}.admin-main .admin-grid>section{min-height:0;overflow:auto;overscroll-behavior:contain}.admin-main .admin-grid>section:has(.table-scroll){display:flex;flex-direction:column}.admin-main .table-scroll{flex:1;min-height:0}.admin-main .pager{flex-shrink:0}.admin-main .extraction-grid{grid-template-columns:1fr 1fr;grid-template-rows:minmax(230px,1fr) minmax(140px,.6fr);gap:16px}.admin-main .extraction-history{grid-column:1/-1;border-left:0;padding:0;border-top:1px solid var(--line)}.extraction-grid .field{margin-bottom:10px}.extraction-grid h2{margin-bottom:12px}.extraction-grid textarea{max-height:100px}#product-summary,#license-summary{max-height:80px;overflow:auto}.admin-main [id^=extract-][id$=-result]{padding-bottom:16px}
@media(max-width:900px){.admin-grid{grid-template-columns:1fr}.admin-main .admin-grid{height:auto;min-height:0}.admin-main .admin-grid>section{max-height:65dvh}.admin-main .table-scroll{max-height:45dvh;min-height:160px}.admin-main .extraction-grid{grid-template-columns:1fr;grid-template-rows:auto}.extraction-history{grid-column:1!important}.admin-grid>section+section{border-left:0;border-top:1px solid var(--line);padding:24px 0 0}.purchase-item{padding:18px}.wrap{padding-left:20px;padding-right:20px}}
@media(max-width:620px){.topbar{height:62px}.brand{font-size:20px}.brand span{font-size:12px;margin-left:8px;padding-left:8px}.text-link{font-size:12px}.portal{padding-top:26px}h1{font-size:21px}.tag{display:none}.purchase-grid{grid-template-columns:1fr}.purchase-item{min-height:0;padding:20px}.redeem-form{gap:8px}.redeem-form button{min-width:80px;padding:10px}.support-section{gap:16px;align-items:flex-start}.support-section .outline{font-size:12px;padding:8px}.qr-area img{width:88px;height:156px}.stats{grid-template-columns:repeat(2,1fr);row-gap:16px}.stat:nth-child(3){border:none;padding-left:0}.wrap{padding-left:16px;padding-right:16px}.top-inner{gap:8px}.section-title{gap:8px}.footer{margin-top:0}.form-row{gap:10px}}