@font-face{font-family:'Baloo 2';font-style:normal;font-weight:700;font-display:swap;
  src:url(/assets/fonts/baloo2-700.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Baloo 2';font-style:normal;font-weight:800;font-display:swap;
  src:url(/assets/fonts/baloo2-800.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:500;font-display:swap;
  src:url(/assets/fonts/plexmono-500.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'IBM Plex Mono';font-style:normal;font-weight:600;font-display:swap;
  src:url(/assets/fonts/plexmono-600.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --sand:#faf3e8; --sand-deep:#f3e8d4; --card:#ffffff;
  --char:#1a1512; --char-soft:#3a322a; --quiet:#7c6f5c; --line:#e4d8c2;
  --flag:#ffd23f; --flag-deep:#a67c00;
  --pop:#ff5a3c; --pop-deep:#d23b22;
  --leaf:#2b9d5a; --leaf-bg:#e7f4ea; --leaf-line:#bfe3c9;
  --amber-bg:#fff4e0; --amber-line:#f3d9a6; --amber-deep:#9a6b08;
  --cast:5px 5px 0 var(--char);
  --cast-sm:4px 4px 0 var(--char);
  --bend:14px; --bend-sm:9px;
  --face-display:"Baloo 2","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --face-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  --face-mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",monospace;
  --shell:1120px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{background:var(--sand);color:var(--char);font-family:var(--face-body);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--pop-deep);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--face-display);font-weight:800;line-height:1.18;letter-spacing:0;color:var(--char)}
.wrap{max-width:var(--shell);margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:10px;background:var(--char);color:#fff;padding:9px 14px;border-radius:8px;z-index:50}

.site-header{border-bottom:2px solid var(--char);background:var(--sand);position:sticky;top:0;z-index:30}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand .lg{width:36px;height:36px;border-radius:10px;background:var(--char);color:var(--flag);font-family:var(--face-display);font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center}
.brand b{font-family:var(--face-display);font-weight:800;font-size:20px;line-height:1;color:var(--char)}
.brand small{display:block;font-size:11px;color:var(--quiet);margin-top:2px;font-weight:400}
.nav-links{display:flex;gap:20px;font-size:14.5px;font-weight:500}
.nav-links a{color:var(--char);opacity:.82}
.nav-links a:hover{opacity:1;text-decoration:none}
.verify-pill{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:500;color:var(--leaf);background:var(--leaf-bg);border:1.5px solid var(--leaf-line);padding:7px 11px;border-radius:20px;flex:none}
.verify-pill .dot{width:7px;height:7px;border-radius:50%;background:var(--leaf)}
.menu-btn{display:none;border:2px solid var(--char);background:var(--card);border-radius:9px;width:44px;height:44px;align-items:center;justify-content:center;cursor:pointer}
.menu-btn span,.menu-btn span::before,.menu-btn span::after{content:"";display:block;width:18px;height:2px;background:var(--char);position:relative}
.menu-btn span::before{position:absolute;top:-6px}.menu-btn span::after{position:absolute;top:6px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--face-display);font-weight:700;font-size:15px;padding:11px 17px;min-height:44px;border-radius:11px;border:2px solid var(--char);background:var(--card);color:var(--char);cursor:pointer;transition:transform .08s,box-shadow .08s}
.btn:hover{text-decoration:none}
.btn-cta{background:var(--pop);color:#fff;box-shadow:var(--cast-sm)}
.btn-cta:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--char)}
.btn-ink{background:var(--char);color:#fff}
.btn-lg{font-size:17px;padding:15px 22px;border-width:2.5px}
.tag{display:inline-block;font-family:var(--face-mono);font-size:12px;font-weight:600;padding:5px 10px;border-radius:20px;border:1.5px solid var(--char);background:var(--card)}
.tag-cta{background:#ffe9e4;border-color:#ffc9bd;color:var(--pop-deep)}
.tag-stub{background:var(--flag);border-color:var(--char);color:var(--char)}
.cat-tag{font-size:11px;font-weight:500;color:var(--quiet)}

.code-box{display:flex;gap:9px;align-items:stretch}
.code-val{flex:1;display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--flag);border:2px solid var(--char);border-radius:11px;padding:0 8px 0 15px;font-family:var(--face-mono);font-weight:600;font-size:21px;letter-spacing:.05em;min-height:52px;color:var(--char)}
.copy-btn{border:none;background:var(--char);color:#fff;font-family:var(--face-display);font-weight:700;font-size:13px;padding:9px 13px;min-height:44px;border-radius:8px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.copy-btn.done{background:var(--leaf)}
.copy-btn svg{width:15px;height:15px}

.ticket{position:relative;background:var(--card);border:2.5px solid var(--char);border-radius:18px;box-shadow:7px 7px 0 var(--char);padding:22px 24px}
.ticket .perf{position:absolute;width:18px;height:18px;background:var(--sand);border:2.5px solid var(--char);border-radius:50%}
.ticket .perf.l{left:-10px;top:50%;transform:translateY(-50%)}
.ticket .perf.r{right:-10px;top:50%;transform:translateY(-50%)}
.ticket-hd{display:flex;align-items:center;justify-content:space-between;gap:10px}
.ticket-ex{display:flex;align-items:center;gap:11px}
.ex-ico{width:42px;height:42px;border-radius:12px;background:var(--char);color:#fff;font-family:var(--face-display);font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;flex:none}
.ticket-ex b{font-family:var(--face-display);font-weight:800;font-size:21px;display:block;line-height:1.1}
.ticket-ex span{font-size:12px;color:var(--quiet)}
.bonus-lab{margin:16px 0 3px;font-size:13px;color:var(--quiet)}
.bonus-v{font-family:var(--face-display);font-weight:800;font-size:25px;line-height:1.15;color:var(--char)}
.bonus-v em{font-style:normal;color:var(--pop-deep)}
.bonus-v sup{font-size:14px;color:var(--quiet);font-weight:500}
.ticket-stub{margin-top:17px;border-top:2.5px dashed var(--char);padding-top:17px}
.stub-lab{font-size:12px;color:var(--quiet);margin-bottom:9px}
.ticket .btn-cta{display:flex;width:100%;margin-top:11px;min-height:54px;font-size:17px;border-width:2.5px;box-shadow:var(--cast-sm)}
.ticket-note{margin-top:10px;font-size:11.5px;line-height:1.5;color:var(--quiet)}
.ticket-note b{color:var(--pop-deep)}

.hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:46px 0 30px}
.hero h1{font-size:43px;margin-bottom:15px}
.hero h1,.article h1,.tool-wrap h1{overflow-wrap:anywhere}
.hero h1 .u{position:relative;white-space:nowrap}
.hero h1 .u::after{content:"";position:absolute;left:-2px;right:-2px;bottom:5px;height:11px;background:var(--flag);z-index:-1;border-radius:2px}
.hero .lead{font-size:17px;line-height:1.6;color:var(--char-soft);max-width:440px}
.hero .lead b{color:var(--char);border-bottom:2px solid var(--pop)}
.hero .foot-note{font-size:12px;color:var(--quiet);margin-top:12px;max-width:440px}
.hero .disclosure{display:flex;align-items:flex-start;gap:8px;margin-top:16px;font-size:12px;line-height:1.5;color:var(--quiet);max-width:440px}
.hero .disclosure svg{flex:none;margin-top:2px}
.hero-visual{display:block;margin-top:18px;max-width:440px;border:2px solid var(--char);border-radius:var(--bend-sm);overflow:hidden;box-shadow:var(--cast-sm);background:var(--card)}
.hero-visual img{width:100%;aspect-ratio:1200/630;object-fit:cover}

.section{padding:34px 0}
.section-hd{display:flex;align-items:baseline;justify-content:space-between;gap:12px;border-top:2px solid var(--char);padding-top:18px;margin-bottom:18px;flex-wrap:wrap}
.section-hd h2{font-size:24px}
.section-hd .more-link{font-size:13.5px;font-weight:500;color:var(--pop-deep)}
.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.filter-row button{font-family:var(--face-body);font-size:13px;font-weight:500;padding:7px 14px;min-height:44px;border:2px solid var(--char);background:var(--card);border-radius:20px;cursor:pointer}
.filter-row button.active{background:var(--char);color:#fff}
.ex-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.ex-card{background:var(--card);border:2px solid var(--char);border-radius:13px;box-shadow:var(--cast-sm);padding:15px;display:flex;flex-direction:column}
.ex-card .ex-top{display:flex;align-items:center;gap:10px;margin-bottom:11px}
.ex-card .ex-mini{width:32px;height:32px;border-radius:9px;color:#fff;font-family:var(--face-display);font-weight:800;font-size:12px;display:flex;align-items:center;justify-content:center;flex:none}
.ex-card .ex-name{font-family:var(--face-display);font-weight:800;font-size:16px;line-height:1.1}
.ex-card .ex-name small{display:block;font-family:var(--face-body);font-weight:400;font-size:11px;color:var(--quiet);margin-top:2px}
.ex-card .ex-code{font-family:var(--face-mono);font-weight:600;font-size:14px;color:var(--char);background:var(--flag);border:1.5px solid var(--char);border-radius:7px;padding:6px 9px;display:inline-flex;align-items:center;gap:7px;align-self:flex-start}
.ex-card .ex-meta{font-size:12px;color:var(--quiet);margin:10px 0 12px;flex:1}
.ex-card .ex-actions{display:flex;gap:8px}
.ex-card .ex-actions .btn{flex:1;font-size:13px;padding:9px 10px;border-width:2px}

.article{max-width:760px;margin:0 auto;padding:30px 0 10px}
.article-cover{margin:0 0 22px;border:2.5px solid var(--char);border-radius:var(--bend);overflow:hidden;box-shadow:var(--cast-sm)}
.article-cover img{width:100%;display:block}
.eyebrow{font-family:var(--face-mono);font-size:12px;font-weight:600;color:var(--pop-deep);letter-spacing:.04em}
.article h1{font-size:34px;margin:10px 0 14px}
.byline{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--quiet);border-bottom:2px solid var(--line);padding-bottom:16px;margin-bottom:8px}
.byline .av{width:34px;height:34px;border-radius:50%;background:var(--char);color:var(--flag);font-family:var(--face-display);font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center}
.byline a{color:var(--pop-deep)}
.toc{background:var(--sand-deep);border:2px solid var(--char);border-radius:var(--bend);padding:16px 20px;margin:22px 0}
.toc b{font-family:var(--face-display);font-size:15px;display:block;margin-bottom:8px}
.toc ol{margin:0;padding-left:20px}
.toc li{margin:4px 0;font-size:14.5px}
.toc a{color:var(--char-soft)}
.prose{font-size:16.5px;line-height:1.8}
.prose p{margin:0 0 17px}
.prose h2{font-size:25px;margin:34px 0 13px;padding-top:6px}
.prose h3{font-size:19px;margin:26px 0 10px}
.prose ul,.prose ol{margin:0 0 17px;padding-left:24px}
.prose li{margin:7px 0}
.prose strong{font-weight:700}
.prose a{color:var(--pop-deep);border-bottom:1px solid var(--pop);text-decoration:none}
.prose a:hover{background:#ffe9e4}
.prose blockquote{border-left:4px solid var(--pop);background:var(--card);margin:20px 0;padding:13px 18px;border-radius:0 8px 8px 0;color:var(--char-soft)}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px}
.prose th,.prose td{border:1.5px solid var(--char);padding:9px 11px;text-align:left}
.prose th{background:var(--sand-deep);font-family:var(--face-display);font-weight:700}
.prose figure{margin:20px 0}
.prose figcaption{font-size:13px;color:var(--quiet);margin-top:7px;text-align:center}
.callout{border:2px solid var(--char);border-radius:var(--bend);padding:15px 18px;margin:20px 0;background:var(--amber-bg);border-color:var(--amber-line)}
.callout.tip{background:var(--leaf-bg);border-color:var(--leaf-line)}
.callout.note{background:var(--sand-deep);border-color:var(--line)}
.callout b{font-family:var(--face-display)}
.updated{font-size:12.5px;color:var(--quiet);font-style:italic}

.cta-strip{border:2.5px solid var(--char);border-radius:var(--bend);background:var(--card);box-shadow:var(--cast-sm);padding:18px 20px;margin:26px 0}
.cta-strip .cs-hd{font-family:var(--face-display);font-weight:800;font-size:18px;margin-bottom:6px}
.cta-strip .cs-sub{font-size:13.5px;color:var(--quiet);margin-bottom:13px}
.cta-strip .cs-row{display:flex;gap:10px;align-items:stretch;flex-wrap:wrap}
.cta-strip .code-box{flex:1;min-width:200px}

.faq{margin:26px 0}
.faq details{border:2px solid var(--char);border-radius:var(--bend-sm);background:var(--card);margin-bottom:10px;padding:0 16px}
.faq summary{font-family:var(--face-display);font-weight:700;font-size:16px;padding:14px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--pop-deep);font-weight:700}
.faq details[open] summary::after{content:"\2013"}
.faq details[open] summary{border-bottom:1.5px solid var(--line)}
.faq .faq-a{padding:13px 0 16px;font-size:15px;line-height:1.7;color:var(--char-soft)}

.tool-wrap{max-width:760px;margin:0 auto;padding:30px 0}
.tool-panel{background:var(--card);border:2.5px solid var(--char);border-radius:var(--bend);box-shadow:var(--cast);padding:22px 24px;margin:22px 0}
.field{margin-bottom:16px}
.field label{display:block;font-weight:500;font-size:14px;margin-bottom:7px}
.field .hint{font-size:12px;color:var(--quiet);font-weight:400}
input[type=number],input[type=text],select{width:100%;font-family:var(--face-body);font-size:16px;padding:11px 13px;border:2px solid var(--char);border-radius:9px;background:var(--sand);color:var(--char)}
input:focus,select:focus{outline:none;box-shadow:0 0 0 3px rgba(255,90,60,.25)}
input[type=range]{width:100%;min-height:44px}
.tool-result{background:var(--sand-deep);border:2px solid var(--char);border-radius:var(--bend);padding:18px 20px;margin-top:18px}
.tool-result .big{font-family:var(--face-display);font-weight:800;font-size:30px;color:var(--pop-deep)}
.tool-result .row{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.tool-result .row:last-child{border-bottom:none}
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}

.redirect-box{max-width:640px;margin:40px auto;padding:0 22px}
.redirect-card{background:var(--card);border:2.5px solid var(--char);border-radius:18px;box-shadow:var(--cast);padding:28px 30px}
.redirect-card h1{font-size:27px;margin:8px 0 12px}
.redirect-card .warning{border:2px solid var(--amber-line);background:var(--amber-bg);border-radius:var(--bend);padding:14px 16px;margin:16px 0;font-size:14px;line-height:1.6}

.site-footer{border-top:2px solid var(--char);background:var(--sand-deep);margin-top:40px;padding:34px 0 26px}
.foot-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:26px}
.foot-cols h4{font-family:var(--face-display);font-size:15px;margin-bottom:11px}
.foot-cols ul{list-style:none}
.foot-cols li{margin:6px 0}
.foot-cols a{font-size:13.5px;color:var(--char-soft)}
.foot-cols a:hover{color:var(--pop-deep)}
.foot-brand{font-family:var(--face-display);font-weight:800;font-size:18px;display:flex;align-items:center;gap:9px;margin-bottom:10px}
.foot-brand .lg{width:32px;height:32px;border-radius:9px;background:var(--char);color:var(--flag);display:flex;align-items:center;justify-content:center;font-size:16px}
.foot-disc{font-size:12.5px;color:var(--quiet);line-height:1.6;max-width:300px}
.foot-bottom{border-top:1.5px solid var(--line);margin-top:26px;padding-top:18px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--quiet)}
.foot-bottom a{color:var(--quiet)}

.crumb{font-size:13px;color:var(--quiet);padding:16px 0 0}
.crumb a{color:var(--quiet)}
.crumb a:hover{color:var(--pop-deep)}
.page-title{font-size:34px;margin:10px 0 18px;max-width:760px}

@media(max-width:920px){
  .ex-grid{grid-template-columns:repeat(2,1fr)}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .wrap{padding:0 16px}
  .nav-links{display:none}
  .menu-btn{display:flex}
  .verify-pill{display:none}
  .hero{display:flex;flex-direction:column;gap:20px;padding:16px 0 18px}
  .hero .ticket{order:-1}
  .hero .hero-copy{order:1}
  .hero h1{font-size:29px}
  .hero .lead{font-size:15px}
  .hero-visual{max-width:100%;margin-top:14px}
  .article h1{font-size:27px}
  .prose{font-size:16px}
  .prose h2{font-size:22px}
  .tool-grid{grid-template-columns:1fr}
}
@media(max-width:380px){
  .hero h1{font-size:26px}
  .ex-grid{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr}
  .code-val{font-size:18px}
}

.mobile-nav{display:none;border-bottom:2px solid var(--char);background:var(--sand)}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;padding:12px 22px;border-bottom:1px solid var(--line);font-weight:500;color:var(--char)}

.ex-card{transition:transform .13s ease, box-shadow .13s ease}
a.ex-card{cursor:pointer}
a.ex-card:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--char);text-decoration:none}
a.ex-card:hover .ex-name{color:var(--pop-deep)}
.btn{transition:transform .09s ease, box-shadow .09s ease, background .15s ease}
.btn:not(.btn-cta):not(.btn-ink):hover{background:var(--sand-deep)}
.copy-btn{transition:background .15s ease, transform .08s ease}
.copy-btn:active{transform:scale(.96)}
.nav-links a{transition:opacity .15s ease}
.foot-cols a,.toc a,.crumb a{transition:color .15s ease}
.faq summary{transition:color .15s ease}
.faq summary:hover{color:var(--pop-deep)}
.verify-pill{transition:box-shadow .15s ease}

a:focus-visible,button:focus-visible,.btn:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--pop);outline-offset:2px;border-radius:4px}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}