:root{
  --navy:#0a1c3e; --navy-2:#0d2a5c; --navy-3:#102f66;
  --ink:#0c1830; --blue:#1e5bc6; --blue-bright:#38a4f7;
  --gold:#d9b45b; --gold-2:#c9a24a; --gold-soft:#e7cf94;
  --paper:#f5f7fb; --card:#ffffff; --line:#e3e9f3;
  --text:#1c2738; --muted:#5b6b85; --muted-2:#8997b0;
  --radius:16px; --radius-s:10px; --shadow:0 14px 40px rgba(10,28,62,.12);
  --shadow-s:0 6px 18px rgba(10,28,62,.10);
  --maxw:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC",system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);background:var(--paper);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Rajdhani","Noto Sans SC",sans-serif;color:var(--ink);line-height:1.25;font-weight:700;letter-spacing:.2px}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.gold{color:var(--gold)}
.brand-dim{opacity:.6}

/* background fx */
.bg-fx{position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(56,164,247,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(217,180,91,.10), transparent 55%),
    linear-gradient(180deg,#eef3fb, #f5f7fb 40%);}

/* header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(10px);
  background:rgba(10,28,62,.82);border-bottom:1px solid rgba(217,180,91,.25)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700}
.brand-mark{display:flex}
.brand-text{font-family:"Rajdhani","Noto Sans SC",sans-serif;font-size:20px;letter-spacing:.5px}
.site-nav{display:flex;gap:4px;flex-wrap:wrap}
.site-nav a{color:#dbe6f7;padding:8px 13px;border-radius:8px;font-size:15px;transition:.18s}
.site-nav a:hover{background:rgba(56,164,247,.18);color:#fff}
.site-nav a.active{color:var(--gold);background:rgba(217,180,91,.12)}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.nav-burger span{width:24px;height:2px;background:#fff;border-radius:2px}

/* hero */
.hero{position:relative;padding:74px 0 64px;color:#eaf2ff;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--navy-3) 100%);
  overflow:hidden;border-bottom:1px solid rgba(217,180,91,.3)}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,164,247,.35),transparent 65%);filter:blur(8px)}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;position:relative;z-index:1}
.hero-kicker{color:var(--gold-soft);letter-spacing:3px;font-size:13px;font-weight:700;margin:0 0 14px}
.hero h1{font-size:42px;margin:0 0 18px;color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.25)}
.hero-sub{color:#cdddf5;font-size:17px;max-width:620px;margin:0 0 26px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
.btn-primary{display:inline-block;background:linear-gradient(135deg,var(--blue),var(--blue-bright));color:#fff;
  padding:13px 24px;border-radius:10px;font-weight:600;box-shadow:0 10px 24px rgba(30,91,198,.4);transition:.2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(30,91,198,.5)}
.btn-ghost{display:inline-block;border:1px solid rgba(217,180,91,.6);color:var(--gold-soft);
  padding:13px 22px;border-radius:10px;font-weight:600;transition:.2s}
.btn-ghost:hover{background:rgba(217,180,91,.14);color:#fff}
.hero-stats{display:flex;gap:26px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats b{font-family:"Rajdhani",sans-serif;font-size:26px;color:var(--gold)}
.hero-stats span{font-size:13px;color:#a9c2e6}

/* hero visual */
.hero-visual{position:relative;height:340px}
.hv-ring{position:absolute;inset:30px;border:1px solid rgba(217,180,91,.35);border-radius:50%;animation:spin 26s linear infinite}
.hv-core{position:absolute;inset:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(56,164,247,.4);border-radius:24px;backdrop-filter:blur(4px)}
.hv-big{font-family:"Rajdhani",sans-serif;font-size:54px;font-weight:700;color:#fff}
.hv-small{font-family:"Rajdhani",sans-serif;font-size:22px;letter-spacing:4px;color:var(--gold)}
.hv-chip{position:absolute;background:rgba(10,28,62,.7);border:1px solid rgba(56,164,247,.5);color:#dbe9ff;
  padding:7px 12px;border-radius:20px;font-size:13px;box-shadow:var(--shadow-s)}
.hv-chip.c1{top:6px;left:0}.hv-chip.c2{top:30%;right:-6px}.hv-chip.c3{bottom:18%;left:-4px}.hv-chip.c4{bottom:2px;right:18%}
@keyframes spin{to{transform:rotate(360deg)}}

/* bands */
.band{padding:58px 0}
.sec-h{font-size:30px;margin:0 0 26px;display:flex;align-items:center;gap:12px}
.sec-h::before{content:"";width:6px;height:26px;background:linear-gradient(var(--gold),var(--blue));border-radius:3px}
.line-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.line-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px 22px;box-shadow:var(--shadow-s);transition:.2s;overflow:hidden}
.line-card:hover{transform:translateY(-4px);border-color:rgba(217,180,91,.55);box-shadow:var(--shadow)}
.lc-no{font-family:"Rajdhani",sans-serif;font-size:34px;color:rgba(30,91,198,.18);font-weight:700}
.line-card h3{margin:4px 0 10px;font-size:21px}
.line-card p{color:var(--muted);font-size:14.5px;margin:0 0 14px}
.lc-more{color:var(--gold-2);font-weight:600;font-size:14px}

.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.svc-card{background:linear-gradient(160deg,#fff,#f3f7ff);border:1px solid var(--line);border-radius:var(--radius-s);padding:20px}
.svc-card h3{margin:0 0 8px;font-size:18px;color:var(--navy-2)}
.svc-card p{margin:0;color:var(--muted);font-size:14px}
.band-note{margin-top:18px;font-size:15px}
.band-note a{color:var(--gold-2);font-weight:600}

/* post cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;
  box-shadow:var(--shadow-s);transition:.2s;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(56,164,247,.4)}
.pc-cat{color:var(--gold-2);font-size:12.5px;font-weight:700;letter-spacing:.5px;margin:0 0 8px}
.post-card h3{margin:0 0 10px;font-size:18.5px;color:var(--ink)}
.pc-sum{color:var(--muted);font-size:14px;margin:0 0 14px;flex:1}
.pc-foot{color:var(--muted-2);font-size:12.5px;margin:0;display:flex;gap:8px}

/* doc layout */
.doc{padding:46px 0 30px}
.crumb{font-size:13.5px;color:var(--muted-2);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb span{margin:0 8px;color:#c2ccdd}
.doc-head{margin-bottom:22px;border-bottom:1px solid var(--line);padding-bottom:18px}
.doc-cat{color:var(--gold-2);font-weight:700;letter-spacing:1px;font-size:13px;margin:0 0 8px}
.doc-head h1{font-size:34px;margin:0 0 12px}
.prod-status{margin:0 0 10px;color:var(--blue);font-weight:600;font-size:14px}
.doc-meta{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted-2);font-size:13.5px}
.meta-author{color:var(--muted)}
.summary-box{display:flex;gap:14px;background:linear-gradient(135deg,#0d2a5c,#102f66);color:#eaf2ff;
  border-radius:var(--radius);padding:18px 20px;margin-bottom:26px;box-shadow:var(--shadow-s)}
.sb-tag{flex:none;background:var(--gold);color:#10233f;font-weight:700;font-size:13px;padding:3px 10px;border-radius:6px;height:fit-content}
.summary-box p{margin:0;font-size:15.5px}

.layout{display:grid;grid-template-columns:1fr 280px;gap:34px;align-items:start}
.doc-body{min-width:0}
.doc-body h2{font-size:25px;margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--gold)}
.doc-body h3{font-size:19px;margin:24px 0 10px;color:var(--navy-2)}
.doc-body p{margin:0 0 14px}
.doc-body ul,.doc-body ol{padding-left:22px;margin:0 0 14px}
.doc-body li{margin:6px 0}
.doc-body table.data,.param-mini{border-collapse:collapse;width:100%;margin:14px 0 20px;font-size:14.5px}
.doc-body table.data th,.doc-body table.data td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.doc-body table.data th{background:#eef3fb;color:var(--navy-2);font-weight:600}
.doc-body table.data tr:nth-child(even) td{background:#fafcff}
.doc-body blockquote{margin:16px 0;padding:12px 16px;border-left:4px solid var(--blue-bright);
  background:#eef5ff;border-radius:0 10px 10px 0;color:var(--navy-2)}
.doc-body code{background:#eef3fb;padding:2px 6px;border-radius:5px;font-size:13.5px}
.doc-body strong{color:var(--ink)}

/* faq */
.faq-block{margin-top:30px}
.faq-block h2{font-size:25px;margin:0 0 14px;padding-left:12px;border-left:4px solid var(--gold)}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-s);margin-bottom:10px;background:#fff;overflow:hidden}
.faq-item summary{cursor:pointer;padding:14px 18px;font-weight:600;color:var(--ink);list-style:none;position:relative;padding-right:42px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:18px;top:12px;font-size:20px;color:var(--gold-2)}
.faq-item[open] summary::after{content:"−"}
.faq-item p{margin:0;padding:0 18px 16px;color:var(--muted)}

/* related */
.related{margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}
.related h2{font-size:22px;margin:0 0 14px}
.rel-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.rel-list li{background:#fafcff;border:1px solid var(--line);border-radius:var(--radius-s);padding:14px 16px}
.rel-list a{font-weight:600;color:var(--ink)}
.rel-list span{display:block;color:var(--muted-2);font-size:12.5px;margin-top:4px}

/* sidebar */
.doc-side{position:sticky;top:84px;display:flex;flex-direction:column;gap:16px}
.toc-card,.kw-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);padding:16px;box-shadow:var(--shadow-s)}
.toc-title{margin:0 0 10px;font-weight:700;color:var(--navy-2);font-size:14px}
.toc{list-style:none;margin:0;padding:0;font-size:14px}
.toc li{margin:6px 0}
.toc-h3{padding-left:14px;color:var(--muted)}
.toc a{color:var(--muted)}
.toc a:hover{color:var(--blue)}
.kw-chips{display:flex;flex-wrap:wrap;gap:8px}
.kw-chips span{background:#eef3fb;color:var(--navy-2);padding:4px 10px;border-radius:20px;font-size:12.5px}
.param-mini td{padding:7px 10px;border-bottom:1px solid var(--line);font-size:13.5px}
.param-mini td:first-child{color:var(--muted);width:55%}
.side-cta{display:block;text-align:center;background:linear-gradient(135deg,var(--blue),var(--blue-bright));color:#fff;
  padding:11px;border-radius:10px;font-weight:600;margin-bottom:10px}
.side-note{color:var(--muted);font-size:13px;margin:0}

/* list pages */
.list-page{padding:46px 0 50px}
.list-head{margin-bottom:26px}
.list-head h1{font-size:34px;margin:0 0 10px}
.list-desc{color:var(--muted);max-width:760px;margin:0}
.group-h{font-size:23px;margin:30px 0 14px}
.card-grid .post-card h3{font-size:17px}

/* footer */
.site-footer{background:var(--navy);color:#c5d4ec;margin-top:40px;padding:46px 0 26px;border-top:3px solid var(--gold)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot-logo{font-family:"Rajdhani",sans-serif;font-size:22px;color:#fff;margin:0 0 10px;font-weight:700}
.foot-tag{color:#9fb6d8;font-size:14px;margin:0 0 8px;max-width:320px}
.foot-city{color:#7f98bd;font-size:13px;margin:0}
.foot-col h4{color:var(--gold-soft);font-size:15px;margin:0 0 12px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin:7px 0}
.foot-col a{color:#c5d4ec;font-size:14px}
.foot-col a:hover{color:var(--gold)}
.foot-record{margin-top:30px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);text-align:center}
.rec-line{margin:0 0 8px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap;align-items:center}
.rec-icp,.rec-police{color:#aec2e0;font-size:13.5px;display:inline-flex;align-items:center;gap:5px}
.rec-icp:hover,.rec-police:hover{color:var(--gold)}
.rec-copy{color:#7f98bd;font-size:12.5px;margin:0}

/* float rail (middle right): capsule + qr popover */
.float-rail{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;
  display:flex;flex-direction:column;align-items:flex-end;gap:14px}
.wc-wrap{position:relative}
.wc-capsule{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:999px;
  border:1px solid rgba(217,180,91,.6);background:linear-gradient(135deg,var(--blue),var(--blue-bright));
  color:#fff;font-size:14px;font-weight:600;letter-spacing:1px;cursor:pointer;
  box-shadow:0 10px 28px rgba(20,80,180,.4);transition:.2s}
.wc-capsule:hover{filter:brightness(1.12);transform:translateX(-3px)}
.wc-pop{position:absolute;right:0;bottom:calc(100% + 16px);width:244px;padding:18px 16px 16px;border-radius:18px;
  background:rgba(10,28,62,.96);border:1.5px solid var(--gold);backdrop-filter:blur(14px);
  box-shadow:0 24px 60px rgba(0,0,0,.55);text-align:center}
.wc-pop::after{content:"";position:absolute;right:26px;bottom:-8px;width:14px;height:14px;
  background:rgba(10,28,62,.96);border-right:1.5px solid var(--gold);border-bottom:1.5px solid var(--gold);
  transform:rotate(45deg)}
.wc-pop[hidden]{display:none}
.wc-pop-qr{width:184px;height:184px;margin:0 auto;background:#fff;border-radius:12px;padding:10px;
  box-shadow:0 8px 24px rgba(0,0,0,.35)}
.wc-pop-qr svg{width:100%;height:100%;display:block}
.wc-pop-hint{font-size:13px;color:#cdddf5;margin:12px 0 10px}
.wc-pop-link{display:block;background:linear-gradient(135deg,var(--blue),var(--blue-bright));
  color:#fff;padding:9px;border-radius:9px;font-weight:600;font-size:13.5px}
.wc-pop-link:hover{filter:brightness(1.08)}
.float-top{width:52px;height:52px;border-radius:999px;border:1px solid rgba(217,180,91,.55);
  background:rgba(10,28,62,.9);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:1px;cursor:pointer;box-shadow:var(--shadow);transition:.2s}
.float-top:hover{background:var(--blue);border-color:var(--blue-bright);transform:scale(1.06)}
.float-top-label{font-size:10px;color:var(--gold-soft);line-height:1}
.float-top{opacity:0;pointer-events:none}
.float-top.show{opacity:1;pointer-events:auto}

/* wechat card stage */
.card-stage{min-height:calc(100vh - 64px);display:flex;align-items:center;justify-content:center;
  padding:60px 20px;background:radial-gradient(900px 500px at 50% -10%,rgba(56,164,247,.18),transparent 60%),
  linear-gradient(160deg,#081633,#0d2a5c 70%)}
.card-scene{perspective:1400px}
.glass-card{position:relative;width:360px;max-width:92vw;padding:30px 28px 22px;border-radius:24px;
  background:linear-gradient(155deg,rgba(20,46,92,.72),rgba(10,28,62,.55));
  border:1.5px solid var(--gold);backdrop-filter:blur(16px);
  box-shadow:0 30px 80px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.18);
  color:#eaf2ff;overflow:hidden}
.gc-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.gc-brand{font-size:11px;letter-spacing:2px;color:var(--gold-soft);font-weight:700}
.gc-badge{font-size:10px;color:#0c1830;background:var(--gold);padding:2px 8px;border-radius:20px;font-weight:700}
.gc-logo{width:56px;margin:0 auto 12px}
.gc-name{text-align:center;font-size:22px;font-weight:700;margin:0;color:#fff}
.gc-co{text-align:center;font-size:13px;color:#a9c2e6;margin:2px 0 0}
.gc-title{text-align:center;font-size:13px;color:var(--gold-soft);margin:6px 0 18px}
.gc-qr{width:188px;height:188px;margin:0 auto;background:#fff;border-radius:16px;padding:12px;
  box-shadow:0 10px 30px rgba(0,0,0,.4)}
.gc-qr svg{width:100%;height:100%;display:block}
.gc-hint{text-align:center;font-size:13px;color:#cdddf5;margin:16px 0 10px}
.gc-hint b{color:var(--gold-soft)}
.gc-link{display:block;text-align:center;background:linear-gradient(135deg,var(--blue),var(--blue-bright));
  color:#fff;padding:11px;border-radius:10px;font-weight:600;margin-bottom:16px}
.gc-link:hover{filter:brightness(1.08)}
.gc-foot{display:flex;justify-content:space-between;font-size:11px;color:#8aa3c9;border-top:1px solid rgba(255,255,255,.12);padding-top:12px}
.gc-glow{position:absolute;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(56,164,247,.5),transparent 70%);
  top:-60px;right:-60px;filter:blur(20px);pointer-events:none}

/* cta band */
.cta-band{padding:20px 0 60px}
.cta-inner{background:linear-gradient(135deg,var(--navy-2),var(--navy-3));border:1px solid rgba(217,180,91,.3);
  border-radius:var(--radius);padding:40px;text-align:center;color:#eaf2ff}
.cta-inner h2{color:#fff;font-size:28px;margin:0 0 12px}
.cta-inner p{color:#c5d4ec;margin:0 0 22px}

/* 404 */
.err-page{text-align:center;padding:90px 0}
.err-code{font-family:"Rajdhani",sans-serif;font-size:96px;color:var(--gold);margin:0;font-weight:700}
.err-page h1{font-size:30px;margin:0 0 12px}
.err-sub{color:var(--muted);margin:0 0 26px}
.err-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* responsive */
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{height:260px;order:-1}
  .line-grid,.svc-grid,.card-grid{grid-template-columns:repeat(2,1fr)}
  .layout{grid-template-columns:1fr}
  .doc-side{position:static;flex-direction:row;flex-wrap:wrap}
  .doc-side>*{flex:1;min-width:240px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .hero h1{font-size:30px}
  .line-grid,.svc-grid,.card-grid{grid-template-columns:1fr}
  .nav-burger{display:flex}
  .site-nav{display:none;position:absolute;top:64px;left:0;right:0;background:rgba(10,28,62,.97);
    flex-direction:column;padding:10px 22px;gap:0}
  #navToggle:checked ~ .site-nav{display:flex}
  .site-nav a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}
  .rel-list{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .float-rail{right:10px}
  .float-btn{width:46px;height:46px}
}