:root{font-family:Inter,Segoe UI,Microsoft YaHei,sans-serif;color:#1d2a24;background:#fff;font-synthesis:none;font-size:16px;line-height:1.65;--accent:#26634e;--muted:#69766f;--border:#dfe6e1;--soft:#f1f6f3}*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid #c5d4cb;border-radius:6px;padding:10px 17px;line-height:1.5;color:var(--accent);background:#fff;cursor:pointer;font-size:14px;font-weight:600;text-decoration:none}button:hover,.button:hover{background:var(--soft);text-decoration:none}button:disabled{cursor:not-allowed;background:#eef1ef;border-color:#e4e9e6;color:#819088}.button{color:#fff;background:var(--accent);border-color:var(--accent)}.button:hover{background:#1d503e}.button.secondary{background:#fff;color:var(--accent)}.full{width:100%}input,select,textarea{display:block;width:100%;border:1px solid #bdc9c1;border-radius:5px;padding:10px 12px;background:#fff;font-size:15px;color:#1d2a24;margin-top:6px}textarea{resize:vertical}label{display:block;font-size:14px;font-weight:600;margin-bottom:17px}input:focus,textarea:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid #afd6bd;outline-offset:2px}h1,h2,h3,p{margin-top:0}h1{font-size:36px;letter-spacing:-1px;line-height:1.3;margin-bottom:16px}h2{font-size:23px;line-height:1.4;margin-bottom:18px}h3{font-size:17px;margin-bottom:14px}p{margin-bottom:16px}hr{border:0;border-top:1px solid var(--border);margin:24px 0}.header{max-width:1200px;margin:0 auto;padding:23px 30px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.brand{font-size:24px;font-weight:700;display:flex;align-items:center;gap:12px;color:#17231f;white-space:nowrap}.brand span{color:var(--accent);font-size:31px;line-height:1}.brand:hover{text-decoration:none}.header nav{display:flex;gap:30px;font-size:14px}.header nav a{color:#536359}.header nav a.selected{color:var(--accent);font-weight:700}.main{max-width:1140px;margin:0 auto;padding:40px 0 70px;min-height:calc(100vh - 172px)}footer{max-width:1140px;margin:auto;border-top:1px solid var(--border);padding:23px 0;display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}footer div{display:flex;gap:25px}.intro{padding:20px 0 25px}.intro h1{font-size:48px;line-height:1.3}.intro p{font-size:19px;color:var(--muted)}.notice{padding:13px 17px;border-left:3px solid #81ad92;background:var(--soft);margin:16px 0 24px;font-size:14px;overflow-wrap:anywhere}.notice.error{border-color:#c26755;background:#fff3ef}.error{color:#a23d2a}.muted{color:var(--muted)}.small{font-size:13px}.services{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;margin:28px 0 45px}.service{border:1px solid var(--border);padding:28px;border-radius:8px;background:#fafcfb}.service.featured{background:var(--soft);border-color:var(--soft)}.service-number{font-size:12px;color:var(--muted);margin-bottom:20px}.service h2{font-size:28px;margin-bottom:12px}.service .button,.service button{margin-top:10px}.steps{border-top:1px solid var(--border);padding-top:28px}.steps ol{padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;list-style-position:inside}.steps li strong{margin-left:5px}.steps li span{display:block;color:var(--muted);font-size:14px;margin-top:8px}.inline-links{display:flex;justify-content:space-between;margin-top:30px;font-size:14px}.page-heading{margin-bottom:36px}.page-heading p{color:var(--muted)}.back{display:inline-block;font-size:14px;margin-bottom:24px}.two-column{display:grid;grid-template-columns:1.35fr 1fr;gap:30px;align-items:start}.two-column>section>h2:not(:first-child){margin-top:34px}.panel{border:1px solid var(--border);border-radius:8px;padding:26px;margin-bottom:24px;background:#fff}.purchase{background:#f8fbf9}.price{font-size:32px;font-weight:700;margin:8px 0}.feature-list{list-style:none;padding:0;margin-bottom:35px}.feature-list li{padding:15px 0;border-bottom:1px solid var(--border)}.feature-list span{display:block;margin-top:7px;font-size:14px;color:var(--muted)}.checkbox{display:flex;align-items:flex-start;gap:10px;font-weight:400}.checkbox input{width:17px;height:17px;margin-top:3px;flex-shrink:0;accent-color:var(--accent)}.guide-layout{display:grid;grid-template-columns:180px 1fr;gap:45px}.guide-nav{display:flex;flex-direction:column;gap:16px;padding-top:17px;font-size:14px}.guide-body{max-width:760px}.guide-body section{padding:12px 0 24px;border-bottom:1px solid var(--border);margin-bottom:20px}.guide-body h2{font-size:21px}details{padding:15px 0;border-bottom:1px solid var(--border)}summary{cursor:pointer;font-weight:600}details p{margin:12px 0 0;color:var(--muted)}.lookup{display:grid;grid-template-columns:1fr 1.3fr auto;align-items:end;gap:16px}.lookup label{margin:0}.lookup button{height:46px}.mono{font-family:ui-monospace,Consolas,monospace;overflow-wrap:anywhere}.code{background:var(--soft);padding:14px;border:1px dashed #adc4b6;border-radius:5px;word-break:break-all;letter-spacing:1px;font-size:15px}.status{font-size:12px;padding:3px 8px;border-radius:4px;background:var(--soft);color:var(--accent);display:inline-block}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:25px 0 20px}.section-heading h1,.section-heading h2,.section-heading h3{margin:0}.section-heading p{margin:7px 0 0}dl{display:grid;grid-template-columns:100px 1fr;gap:12px;font-size:14px;margin:25px 0}dt{color:var(--muted)}dd{margin:0;overflow-wrap:anywhere}.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.empty{text-align:center;padding:50px 20px;background:#fafcfb;border:1px dashed var(--border);margin:30px 0}.empty p{color:var(--muted)}.recent{margin-top:25px;display:flex;flex-direction:column;align-items:center;gap:8px}.narrow{max-width:700px}.preserve{white-space:pre-wrap}.login{max-width:420px;margin:40px auto}.login h1{font-size:28px}.tabs{display:flex;border-bottom:1px solid var(--border);gap:12px;margin:28px 0;overflow-x:auto}.tabs button{border:0;border-radius:0;background:#fff;white-space:nowrap;border-bottom:3px solid transparent;padding:12px 16px}.tabs button.active{border-bottom-color:var(--accent);background:var(--soft)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:22px 0;border-bottom:1px solid var(--border)}.stats span{display:block;font-size:13px;color:var(--muted)}.stats strong{display:block;font-size:29px;margin-top:8px}.stats strong.small-strong{font-size:22px;padding-top:5px}.table-scroll{overflow-x:auto;margin-bottom:30px}table{border-collapse:collapse;width:100%;font-size:14px;text-align:left}th{font-weight:600;color:var(--muted);background:#f6f9f7;white-space:nowrap}th,td{padding:14px;border-bottom:1px solid var(--border);vertical-align:top}td strong{font-size:12px}td small{display:block;font-size:12px;color:var(--muted);margin-top:5px}td .mono{word-break:normal}.manage-form{display:grid;grid-template-columns:1fr 100px 1.6fr auto;gap:15px;align-items:end}.manage-form label{margin:0}.manage-form button{height:46px}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:17px}.created{margin-top:28px;padding-top:20px;border-top:1px solid var(--border)}@media(max-width:1200px){.main,footer{margin-left:30px;margin-right:30px}}@media(max-width:750px){.header{padding:17px 20px}.brand{font-size:19px}.brand span{font-size:26px}.header nav{gap:14px;font-size:12px}.main{margin:0;padding:30px 20px 45px}.intro{padding:12px 0 18px}.intro h1{font-size:35px}.intro p{font-size:16px}.services,.two-column{grid-template-columns:1fr;gap:16px}.service{padding:23px}.services{margin-bottom:30px}.steps ol{grid-template-columns:1fr;gap:16px}.steps li{padding-bottom:12px;border-bottom:1px solid var(--border)}.steps li span{margin-left:22px}.inline-links{gap:20px}.page-heading h1{font-size:30px}.page-heading{margin-bottom:25px}.panel{padding:20px}.lookup{grid-template-columns:1fr}.lookup button{width:100%}.guide-layout{grid-template-columns:1fr;gap:12px}.guide-nav{flex-direction:row;flex-wrap:wrap;padding:0;margin-bottom:10px}.stats{grid-template-columns:1fr 1fr;gap:22px}.stats strong{font-size:25px}.section-heading{align-items:flex-start}.section-heading h1{font-size:28px}.manage-form{grid-template-columns:1fr 1fr}.manage-form label:nth-child(3){grid-column:1/-1}.tabs{gap:0}.tabs button{font-size:13px;padding:11px 12px}footer{margin:0 20px;gap:20px;flex-wrap:wrap}.login{margin:12px auto}.field-pair{grid-template-columns:1fr}.narrow{width:100%}h2{font-size:21px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}.app-shell{min-height:100vh}.storefront{position:relative;isolation:isolate;padding:16px 0;color:#19271f}.storefront:before{content:"";position:fixed;inset:0;z-index:-1;background:#111 url(/nailong-background.jpg) center 35%/cover no-repeat;pointer-events:none}.storefront .header{background:#fffffff0;border:1px solid rgba(255,255,255,.55);border-radius:10px}.storefront .main{margin-top:22px;margin-bottom:22px;padding:36px 30px 44px;background:#ffffffc7;border:1px solid rgba(255,255,255,.55);border-radius:10px}.storefront footer{padding:20px 24px;background:#fffffff0;border-radius:10px;border-top:0}.storefront .service,.storefront .panel,.storefront .empty{background:#ffffffe8}.storefront .service.featured,.storefront .notice{background:#eef6f0f0}.storefront .header .brand{font-size:22px;letter-spacing:.3px}.storefront .muted,.storefront .intro p,.storefront .page-heading p{color:#536056}@media(max-width:1200px){.storefront .header{margin-left:20px;margin-right:20px}}@media(max-width:750px){.storefront{padding:10px 0}.storefront .header{margin:0 12px;padding:14px}.storefront .header .brand{font-size:17px;gap:6px;letter-spacing:0}.storefront .header .brand span{font-size:22px}.storefront .header nav{gap:10px}.storefront .main{margin:14px 12px;padding:24px 17px 32px;background:#ffffffd6}.storefront footer{margin:0 12px;padding:17px}.storefront:before{background-position:center center}}.guide-first strong{display:block;font-size:17px}.guide-first p{margin:8px 0 14px}.guide-actions{margin:24px 0 30px}.guide-sidebar{align-self:start;position:sticky;top:20px}.guide-toc{padding:14px 0}.guide-toc .guide-nav{gap:5px}.guide-nav button{text-align:left;border:0;background:transparent;padding:9px 4px;line-height:1.6;font-size:13px;color:var(--accent)}.guide-nav button:hover{background:var(--soft)}.guide-body h2{scroll-margin-top:25px}.guide-body h2:focus{outline:2px solid var(--accent);outline-offset:6px}.guide-instructions{padding-left:24px}.guide-instructions li{margin:16px 0;padding-left:5px;line-height:1.9}.guide-where{font-size:13px;color:var(--accent);margin-top:-6px}.guide-done{border-left:3px solid var(--accent);background:var(--soft);padding:13px 17px;margin:18px 0}.guide-done p{margin:6px 0 0}.guide-note{font-size:14px;color:#485e50;line-height:1.85}.guide-extra{background:#fffc;padding:16px;border:1px solid var(--border);border-radius:6px;margin:15px 0}.guide-extra p{line-height:1.85}.guide-extra pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px;background:#eef1f0;padding:12px}.guide-example figure{margin:18px 0}.guide-example img{width:300px;max-width:100%;height:auto;display:block;border-radius:8px}.guide-example figcaption{margin:10px 0;font-size:13px;color:var(--muted)}.guide-resources{padding-left:20px}.guide-resources li{margin:14px 0}.guide-resources p{font-size:13px;color:var(--muted);margin:5px 0}.guide-body table{background:#fffc}.guide-body table td{min-width:90px;line-height:1.7}.guide-body .table-scroll{margin-top:15px}@media(max-width:750px){.guide-sidebar{position:static}.guide-toc .guide-nav{display:flex;flex-direction:column;gap:2px}.guide-actions{gap:10px}.guide-actions .button{width:100%;text-align:center}.guide-body h2{font-size:21px}.guide-body section{padding-top:10px}.guide-body table{font-size:13px}.guide-body table td,.guide-body table th{padding:9px}.guide-first button{font-size:13px}}@media print{.storefront:before,.header,footer,.guide-sidebar,.guide-actions{display:none!important}.storefront .main{background:#fff;border:0;padding:0;margin:0}.guide-layout{display:block}.guide-body{max-width:none}.guide-body h2{break-after:avoid}.guide-instructions li,.guide-done{break-inside:avoid}}