:root{--brand:#1c4fd8;--bg:#f5f7fb;--card:#fff;--text:#1a1d24;--muted:#6b7280;--border:#e5e8ef;--radius:12px}
*{box-sizing:border-box}
body{margin:0;font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);-webkit-text-size-adjust:100%}
a{color:var(--brand);text-decoration:none}
.wrap{max-width:1400px;margin:0 auto;padding:0 16px}
.hd{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:9}
.hd .wrap{display:flex;align-items:center;gap:18px;height:78px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-img{height:50px;width:auto;display:block}
.brand-div{width:1px;height:24px;background:var(--border)}
.brand-sub{font-size:18px;font-weight:600;color:var(--brand);white-space:nowrap;letter-spacing:1px}
.logo{font-weight:700;font-size:19px;color:var(--text)}
.logo b{color:var(--brand)}
.hd nav{display:flex;gap:16px;font-size:16px;margin-left:auto;flex-wrap:wrap;justify-content:flex-end}
.hd nav a{color:var(--muted);white-space:nowrap}
.hd nav a:hover{color:var(--brand)}
.hero{padding:34px 0 6px;text-align:center}
.hero h1{margin:0 0 8px;font-size:25px}
.hero p{margin:0;color:var(--muted)}
.cat h2{font-size:16px;margin:26px 0 12px;padding-left:10px;border-left:3px solid var(--brand)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(208px,1fr));gap:12px}
.card{display:block;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;color:var(--text);transition:.15s}
.card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 6px 18px rgba(28,79,216,.1)}
.card b{display:block;font-size:15px;margin-bottom:4px}
.card span{color:var(--muted);font-size:13px}
.card .ic{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:#eef2ff;color:var(--brand);margin-bottom:10px}
.card .ic svg{width:22px;height:22px}
.card.soon .ic{background:#f1f3f7;color:#9aa3af}
.tico{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:#eef2ff;color:var(--brand);vertical-align:-4px;margin-right:9px}
.tico svg{width:19px;height:19px}
.card.soon{opacity:.55}
.card.soon:hover{transform:none;border-color:var(--border);box-shadow:none}
.panel{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin:16px 0}
.panel>*+*{margin-top:14px}
label{display:block;font-size:13px;color:var(--muted);margin:0 0 6px}
input,textarea,select{width:100%;font:inherit;padding:9px 11px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text)}
input[type=color]{padding:2px;height:38px}
textarea{min-height:104px;resize:vertical}
button{font:inherit;padding:9px 18px;border:0;border-radius:8px;background:var(--brand);color:#fff;cursor:pointer}
button.ghost{background:#eef2ff;color:var(--brand)}
button:disabled{opacity:.6;cursor:default}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.row>*{flex:0 0 auto}
.out{margin-top:12px;padding:12px;border-radius:8px;background:#f8fafc;border:1px dashed var(--border);word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;min-height:20px;white-space:pre-wrap}
.ft{border-top:1px solid var(--border);margin-top:36px;padding:20px 0 30px;color:var(--muted);font-size:13px;text-align:center}
.crumb{font-size:13px;color:var(--muted);margin:14px 0 0}
h1.t{font-size:22px;margin:10px 0 4px}
.tip{color:var(--muted);font-size:13px;margin:4px 0 0}
.qrbox{display:flex;justify-content:center;align-items:center;padding:14px;background:#fff;border:1px solid var(--border);border-radius:12px;min-height:236px}
.qrbox canvas,.qrbox img{max-width:100%;height:auto}
.ck{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text)}
.ck input{width:auto}
@media(max-width:900px){
  .hd .wrap{gap:10px;height:auto;min-height:64px;padding-top:8px;padding-bottom:8px;flex-wrap:nowrap}
  .hd nav{flex-wrap:nowrap;overflow-x:auto;flex:1 1 auto;min-width:0;justify-content:flex-start;margin-left:10px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .hd nav a{flex:0 0 auto}
  .hd nav::-webkit-scrollbar{display:none}
}
@media(max-width:560px){.hero h1{font-size:21px}.hd nav{gap:14px;font-size:15px}.brand-img{height:30px}.brand-div{height:20px}.brand-sub{font-size:14px;letter-spacing:0}.hd .wrap{gap:8px;height:auto;min-height:60px;padding-top:8px;padding-bottom:8px;flex-wrap:nowrap}}