:root{
  --primary:#1453d6; --primary-dark:#0e3f9e; --primary-soft:#eaf1fd;
  --ink:#1a2233; --ink-2:#465269; --muted:#6b7689;
  --line:#dfe6f0; --bg:#f6f8fc; --card:#ffffff;
  --amber:#8a5a00; --amber-bg:#fff7e0; --amber-line:#f3dd9a;
  --red:#b42318; --green:#067647;
  --radius:12px; --shadow:0 1px 2px rgba(16,32,64,.05),0 10px 30px -18px rgba(16,32,64,.18);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{border:0}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* top bar */
.topbar{background:#0d1b33;color:#cdd9ef;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.topbar a{color:#ffd98a}
.topbar .tb-r{display:flex;gap:18px;align-items:center}
.ico{font-style:normal;margin-right:4px}

/* header */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;gap:16px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink);white-space:nowrap}
.brand .logo{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#1d6bff,#0e3f9e);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;letter-spacing:0}
.brand small{display:block;font-weight:400;font-size:12px;color:var(--muted);line-height:1.2}
.brand .logo-img{width:38px;height:38px;border-radius:10px;object-fit:contain;background:#fff;}
nav.main{flex:1;display:flex;justify-content:flex-end;gap:2px;flex-wrap:wrap}
nav.main a{color:var(--ink-2);padding:7px 10px;border-radius:8px;font-size:14px;white-space:nowrap}
nav.main a:hover{background:var(--primary-soft);color:var(--primary);text-decoration:none}
nav.main a.on{background:var(--primary-soft);color:var(--primary);font-weight:600}
.hdr-cta{display:flex;gap:8px;white-space:nowrap}
.hdr-cta .btn{padding:7px 13px}

/* buttons & chips */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid transparent;border-radius:9px;padding:9px 16px;font-size:14px;cursor:pointer;transition:.15s;font-family:inherit}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);text-decoration:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}
.btn-sm{padding:6px 12px;font-size:13px}
.chip{display:inline-block;background:var(--primary-soft);color:var(--primary-dark);border-radius:999px;padding:3px 12px;font-size:12.5px;font-weight:600}
.chip.amber{background:var(--amber-bg);color:var(--amber);border:1px solid var(--amber-line)}
.chip.gray{background:#eef1f6;color:var(--ink-2)}

/* devnote */
.devnote{background:var(--amber-bg);border-bottom:1px solid var(--amber-line);color:var(--amber);font-size:13px}
.devnote .wrap{display:flex;align-items:center;gap:10px;padding-top:8px;padding-bottom:8px}
.devnote button{margin-left:auto;background:none;border:none;color:var(--amber);cursor:pointer;font-size:15px;padding:0 4px}

/* hero */
.hero{background:linear-gradient(160deg,#eaf1fd 0%,#f6f8fc 55%,#fff 100%);border-bottom:1px solid var(--line)}
.hero .wrap{padding-top:56px;padding-bottom:56px;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero h1{font-size:34px;line-height:1.3;letter-spacing:.5px;color:var(--ink)}
.hero h1 .hl{color:var(--primary)}
.hero p.lead{margin:16px 0 24px;color:var(--ink-2);font-size:16px;max-width:640px}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.hero .acts .dim{font-size:13px;color:var(--muted)}
.hero-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.hero-panel h3{font-size:16px;margin-bottom:4px;display:flex;align-items:center;gap:8px}
.hero-panel .sub{font-size:12.5px;color:var(--muted);margin-bottom:14px}
.meta-row{display:flex;justify-content:space-between;font-size:13px;padding:8px 0;border-bottom:1px dashed var(--line)}
.meta-row:last-child{border-bottom:0}
.meta-row b{font-weight:600;color:var(--ink)}
.meta-row .st{font-size:12px;padding:1px 8px;border-radius:999px;background:#e7f6ec;color:var(--green);font-weight:600}

/* notice strip */
.notice{border-left:4px solid var(--primary);background:var(--card);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0 var(--radius) var(--radius) 0;padding:14px 18px;font-size:14px;margin:22px 0;display:flex;gap:10px}
.notice b{color:var(--primary-dark)}

/* layout blocks */
section.block{padding:34px 0}
.section-head{margin-bottom:20px}
.section-head h2{font-size:24px;position:relative;padding-left:14px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;background:var(--primary)}
.section-head p{color:var(--muted);margin-top:6px;font-size:14px}

.grid{display:grid;gap:16px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 1px 2px rgba(16,32,64,.04)}
.card h4{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.card h4 .ic{width:30px;height:30px;border-radius:8px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex:none}
.card p{color:var(--ink-2);font-size:13.5px}
.card ul{padding-left:18px;color:var(--ink-2);font-size:13.5px}
.card .more{margin-top:10px;font-size:13px}
.stat{text-align:center;padding:18px 10px}
.stat b{display:block;font-size:26px;color:var(--primary);line-height:1.2}
.stat span{font-size:12.5px;color:var(--muted)}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:st}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 16px 16px 58px;position:relative}
.step::before{counter-increment:st;content:counter(st);position:absolute;left:14px;top:16px;width:30px;height:30px;border-radius:50%;background:var(--primary-soft);color:var(--primary);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px}
.step b{display:block;margin-bottom:4px}
.step p{font-size:12.5px;color:var(--muted);line-height:1.6}

/* pages */
main{min-height:60vh}
.page{display:none}
.page.on{display:block}
.page-hero{background:var(--card);border-bottom:1px solid var(--line)}
.page-hero .wrap{padding:30px 20px 26px}
.page-hero h1{font-size:26px}
.page-hero p{color:var(--muted);font-size:14px;margin-top:6px;max-width:860px}
.breadcrumb{font-size:12.5px;color:var(--muted);margin-bottom:10px}
.breadcrumb a{color:var(--muted)}

/* legal doc */
.doc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:38px 46px;margin:26px 0}
.doc .doc-title{font-size:23px;text-align:center;line-height:1.4}
.doc .doc-meta{text-align:center;color:var(--muted);font-size:13px;margin:8px 0 6px}
.doc .doc-alert{background:var(--amber-bg);border:1px solid var(--amber-line);color:var(--amber);font-size:13.5px;border-radius:10px;padding:12px 16px;margin:18px 0}
.doc h2{font-size:17px;margin:28px 0 10px;padding-left:12px;border-left:4px solid var(--primary);line-height:1.5}
.doc h3{font-size:15px;margin:18px 0 8px;color:var(--ink)}
.doc p,.doc li{color:var(--ink-2);font-size:14px}
.doc p{margin:8px 0}
.doc ul,.doc ol{padding-left:26px;margin:8px 0}
.doc li{margin:5px 0}
.doc .sub{font-size:13px;color:var(--muted)}
.doc table{width:100%;border-collapse:collapse;margin:12px 0;font-size:13.5px}
.doc th,.doc td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.doc th{background:#f2f6fd;color:var(--ink);font-weight:600}
.doc .tag{display:inline-block;background:var(--primary-soft);color:var(--primary-dark);font-size:12px;border-radius:6px;padding:1px 8px;margin-right:6px}

/* token placeholder */
.ph{color:#b45309;border-bottom:1.5px dashed #d9a95c;background:rgba(255,247,224,.55);border-radius:3px;padding:0 3px;font-style:normal;font-weight:500}

/* license cards */
.lic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:6px}
.lic{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.lic .lic-top{background:linear-gradient(135deg,#f2f6fd,#e7eefb);padding:18px 20px;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line)}
.lic .lic-top .em{width:40px;height:40px;border-radius:10px;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.lic .lic-top b{font-size:15.5px}
.lic .lic-top span{font-size:12px;color:var(--muted)}
.lic .lic-bd{padding:14px 20px 18px;font-size:13px;color:var(--ink-2);flex:1}
.lic .lic-bd div{padding:3px 0;font-size:13px}
.lic .lic-bd .lbl{color:var(--muted);font-size:12px}
.lic .lic-img{height:120px;border:1.5px dashed #c9d6ea;border-radius:8px;margin-top:10px;background:repeating-linear-gradient(45deg,#fbfcfe,#fbfcfe 10px,#f2f6fd 10px,#f2f6fd 20px);display:flex;align-items:center;justify-content:center;color:#93a4bd;font-size:12.5px;text-align:center;padding:8px}
.lic .lic-img.obtained{border-style:solid;border-color:var(--line);background:#f7faf4;color:var(--green)}
.lic .st{font-size:12px;border-radius:999px;padding:1px 10px;background:#fff;border:1px solid var(--line);font-weight:600}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.c-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.c-item h4{display:flex;align-items:center;gap:8px;font-size:15px;margin-bottom:12px}
.c-item .em{width:34px;height:34px;border-radius:9px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px}
.c-item p{font-size:13.5px;color:var(--ink-2);margin:5px 0}
.c-item .tip{font-size:12px;color:var(--muted)}

/* footer */
.site-footer{background:#0d1b33;color:#aeb9cc;font-size:13px;margin-top:44px}
.site-footer a{color:#cdd9ef}
.site-footer a:hover{color:#fff}
.site-footer .wrap{padding:40px 20px 8px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px;padding-bottom:26px}
.f-grid h5{color:#fff;font-size:14px;margin-bottom:12px;font-weight:600}
.f-grid ul{list-style:none}
.f-grid li{margin:6px 0}
.f-grid p{margin:6px 0;line-height:1.9}
.beian-bar{border-top:1px solid #22314d;padding:16px 0 20px;text-align:center;font-size:12.5px;line-height:2.1;color:#8f9cb3}
.beian-bar a{color:#cdd9ef}
.beian-bar .sep{margin:0 6px;color:#42598a}

/* toast & misc */
#toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);background:#0d1b33;color:#fff;padding:11px 18px;border-radius:10px;font-size:13.5px;opacity:0;pointer-events:none;transition:.25s;z-index:99;max-width:88vw;box-shadow:0 12px 30px rgba(0,0,0,.25)}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.demo-line{color:#8f9cb3;font-size:12px}
.anchor-offset{scroll-margin-top:84px}

@media (max-width:980px){
  .grid.g4,.grid.g3,.steps,.lic-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}
  .hero .wrap{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .grid.g4,.grid.g3,.grid.g2,.steps,.lic-grid,.contact-grid{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .doc{padding:24px 20px}
  .site-header .wrap{height:auto;flex-wrap:wrap;padding-top:10px;padding-bottom:10px;gap:8px}
  nav.main{justify-content:flex-start;width:100%}
  .hero h1{font-size:26px}
  .topbar .tb-r{display:none}
}
@media print{
  .site-header,.topbar,.site-footer,.devnote,#toast,.hdr-cta{display:none!important}
  .page{display:block!important;page-break-after:always}
  body{background:#fff}
}