/* roulang page: index */
:root{
  --rg-primary:#123f6d;
  --rg-primary-dark:#0c2c4d;
  --rg-primary-light:#1d5c9b;
  --rg-accent:#2f7ff0;
  --rg-accent-soft:#e9f2fe;
  --rg-bg:#f5f9fd;
  --rg-surface:#ffffff;
  --rg-text:#152438;
  --rg-muted:#64788f;
  --rg-border:#e3ebf5;
  --rg-radius:18px;
  --rg-radius-sm:12px;
  --rg-shadow-sm:0 4px 14px rgba(18,63,109,.06);
  --rg-shadow:0 14px 34px rgba(18,63,109,.09);
  --rg-shadow-lg:0 24px 60px rgba(18,63,109,.14);
  --rg-max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--rg-text);
  background:var(--rg-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--rg-primary-light);text-decoration:none;transition:color .2s ease;}
a:hover,a:focus{color:var(--rg-accent);}
h1,h2,h3,h4{font-weight:700;line-height:1.32;margin:0;color:var(--rg-primary-dark);letter-spacing:.2px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(47,127,240,.45);outline-offset:2px;}
[id]{scroll-margin-top:92px;}

.rg-container{width:100%;max-width:var(--rg-max);margin:0 auto;padding:0 24px;}

/* header */
.rg-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rg-border);
}
.rg-nav-wrap{display:flex;align-items:center;gap:18px;min-height:76px;position:relative;}
.rg-logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.rg-logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(150deg,#2a6db5,#0c2c4d);
  color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(18,63,109,.24);
}
.rg-logo-text{display:flex;flex-direction:column;line-height:1.16;}
.rg-logo-main{font-size:17px;font-weight:700;color:var(--rg-primary-dark);white-space:nowrap;}
.rg-logo-sub{font-size:12px;color:var(--rg-muted);letter-spacing:1px;white-space:nowrap;}
.rg-nav{display:flex;align-items:center;gap:4px;margin-left:14px;}
.rg-nav a{
  display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:10px;
  font-size:15px;font-weight:500;color:#3c4f66;
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.rg-nav a:hover,.rg-nav a:focus{background:var(--rg-accent-soft);color:var(--rg-primary);}
.rg-nav a.is-active{background:var(--rg-accent-soft);color:var(--rg-primary);font-weight:700;}
.rg-nav-side{margin-left:auto;display:flex;align-items:center;gap:12px;}
.rg-locator{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border:1px solid var(--rg-border);
  border-radius:999px;background:#fbfdff;
  font-size:13px;color:var(--rg-muted);white-space:nowrap;
}
.rg-locator strong{color:var(--rg-primary);font-weight:600;}
.rg-locator svg{flex-shrink:0;color:var(--rg-accent);}
.rg-menu-toggle{
  display:none;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--rg-border);
  border-radius:10px;padding:9px 13px;font-size:14px;
  color:var(--rg-primary);cursor:pointer;
}

/* buttons */
.rg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.rg-btn-primary{
  background:linear-gradient(135deg,#2568ab,var(--rg-primary));
  color:#fff;box-shadow:0 10px 24px rgba(18,63,109,.22);
}
.rg-btn-primary:hover,.rg-btn-primary:focus{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,63,109,.28);}
.rg-btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(18,63,109,.2);}
.rg-btn-ghost{background:#fff;border-color:#cfdeef;color:var(--rg-primary);}
.rg-btn-ghost:hover,.rg-btn-ghost:focus{border-color:var(--rg-accent);color:var(--rg-accent);background:#f6faff;}
.rg-btn-light{background:#fff;color:var(--rg-primary);box-shadow:0 10px 24px rgba(6,24,44,.24);}
.rg-btn-light:hover,.rg-btn-light:focus{color:var(--rg-accent);transform:translateY(-2px);}
.rg-btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.rg-btn-outline-light:hover,.rg-btn-outline-light:focus{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.rg-btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}
.rg-btn-block{width:100%;}

/* section */
.rg-section{padding:76px 0;}
.rg-section--alt{background:#fff;}
.rg-section--tint{background:linear-gradient(180deg,#f2f7fd,#f8fbfe);}
.rg-sec-head{max-width:760px;margin-bottom:38px;}
.rg-sec-head.is-center{margin-left:auto;margin-right:auto;text-align:center;}
.rg-eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  font-size:13px;font-weight:600;letter-spacing:.6px;
  margin-bottom:14px;
}
.rg-sec-title{font-size:clamp(22px,2.6vw,31px);}
.rg-sec-desc{margin-top:14px;color:var(--rg-muted);font-size:16px;line-height:1.85;}

/* grids */
.rg-grid{display:grid;gap:22px;}
.rg-grid>*{min-width:0;}
.rg-grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.rg-grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.rg-grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.rg-grid-news{grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:30px;}

/* cards */
.rg-card{
  background:var(--rg-surface);
  border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);
  padding:28px;
  box-shadow:var(--rg-shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rg-card:hover{transform:translateY(-4px);box-shadow:var(--rg-shadow);border-color:#cfe0f3;}
.rg-card h3{font-size:18px;margin-bottom:10px;}
.rg-card p{color:var(--rg-muted);font-size:15px;line-height:1.8;}
.rg-icon-box{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;margin-bottom:16px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
}
.rg-tag{
  display:inline-block;padding:4px 11px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
}

/* hero */
.rg-hero{
  position:relative;overflow:hidden;
  padding:66px 0 78px;
  background:
    radial-gradient(900px 460px at 8% -12%,#e6f0fd 0%,rgba(230,240,253,0) 62%),
    radial-gradient(820px 420px at 96% 4%,#e4effb 0%,rgba(228,239,251,0) 60%),
    #f7fafd;
}
.rg-hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:start;}
.rg-hero h1{font-size:clamp(26px,3.2vw,40px);line-height:1.3;letter-spacing:.3px;}
.rg-hero-lead{margin-top:20px;color:#41586f;font-size:16px;line-height:1.95;}
.rg-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.rg-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.rg-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--rg-border);
  font-size:13.5px;color:#42586e;box-shadow:var(--rg-shadow-sm);
}
.rg-chip span.dot{width:7px;height:7px;border-radius:50%;background:var(--rg-accent);display:inline-block;}

/* quiz */
.rg-quiz{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:22px;padding:26px;
  box-shadow:var(--rg-shadow-lg);
}
.rg-quiz-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px;}
.rg-quiz-head h2{font-size:17px;}
.rg-quiz-head .rg-tag{flex-shrink:0;}
.rg-quiz-q{margin-bottom:18px;}
.rg-quiz-q h3{font-size:14px;color:#37485c;margin-bottom:10px;font-weight:600;}
.rg-opt-row{display:flex;flex-wrap:wrap;gap:9px;}
.rg-opt{
  padding:9px 15px;border-radius:10px;
  border:1px solid var(--rg-border);background:#f9fbfe;
  font-size:13.5px;color:#41566d;cursor:pointer;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.rg-opt:hover{border-color:#a9c9ec;color:var(--rg-primary);background:#f2f8ff;}
.rg-opt.is-selected{background:var(--rg-accent-soft);border-color:var(--rg-accent);color:var(--rg-primary);font-weight:600;}
.rg-quiz-result{
  margin-top:20px;padding:18px;border-radius:14px;
  background:linear-gradient(180deg,#f2f8ff,#eef6ff);
  border:1px dashed #bcd8f7;
}
.rg-quiz-result h4{font-size:14px;color:var(--rg-primary);margin-bottom:10px;}
.rg-quiz-result ul li{
  position:relative;padding-left:18px;
  font-size:13.8px;color:#3f556c;line-height:1.8;margin-bottom:6px;
}
.rg-quiz-result ul li:last-child{margin-bottom:0;}
.rg-quiz-result ul li::before{
  content:"";position:absolute;left:0;top:10px;
  width:7px;height:7px;border-radius:50%;background:var(--rg-accent);
}
.rg-quiz-result .rg-pending{font-size:13.8px;color:#5b7189;line-height:1.8;}

/* download */
.rg-dl-card{display:flex;flex-direction:column;height:100%;}
.rg-dl-card h3{font-size:19px;}
.rg-dl-card .rg-dl-sub{font-size:13px;color:var(--rg-muted);letter-spacing:.6px;margin-bottom:12px;}
.rg-dl-points{margin:14px 0 22px;}
.rg-dl-points li{
  position:relative;padding-left:20px;
  font-size:14px;color:#4a5f76;line-height:1.8;margin-bottom:7px;
}
.rg-dl-points li::before{
  content:"";position:absolute;left:2px;top:9px;
  width:8px;height:8px;border-radius:2px;
  background:var(--rg-accent);opacity:.7;
}
.rg-dl-card .rg-btn{margin-top:auto;}

/* stage */
.rg-stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:44px;align-items:center;}
.rg-stage-list{margin-top:24px;}
.rg-stage-list li{
  display:flex;gap:12px;padding:13px 0;
  border-bottom:1px dashed var(--rg-border);
  font-size:15px;color:#42586e;
}
.rg-stage-list li:last-child{border-bottom:0;}
.rg-stage-list .num{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  display:grid;place-items:center;font-size:13px;font-weight:700;
}
.rg-window{
  border-radius:18px;overflow:hidden;background:#fff;
  border:1px solid var(--rg-border);box-shadow:var(--rg-shadow-lg);
}
.rg-window-bar{
  display:flex;align-items:center;gap:8px;
  padding:13px 16px;background:#f2f7fd;border-bottom:1px solid var(--rg-border);
}
.rg-window-bar i{width:10px;height:10px;border-radius:50%;background:#cfdceb;display:inline-block;}
.rg-window-bar .rg-window-title{margin-left:8px;font-size:12.5px;color:#64788f;letter-spacing:.5px;}
.rg-window-body{padding:18px;}
.rg-window-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.rg-window-tabs span{
  padding:6px 12px;border-radius:8px;font-size:12.5px;
  background:#f5f9fd;color:#5a7089;border:1px solid var(--rg-border);
}
.rg-window-tabs span.on{background:var(--rg-primary);color:#fff;border-color:var(--rg-primary);}
.rg-window-rows li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 14px;border-radius:10px;background:#f8fbfe;
  font-size:13.5px;color:#3f556c;margin-bottom:8px;
}
.rg-window-rows li:last-child{margin-bottom:0;}
.rg-window-rows .state{
  font-size:12px;padding:3px 9px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);white-space:nowrap;
}
.rg-window-note{margin-top:14px;font-size:12px;color:#8b9bad;text-align:right;}

/* steps */
.rg-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rg-step{position:relative;padding-top:8px;}
.rg-step .rg-step-no{
  font-size:34px;font-weight:700;line-height:1;
  color:#cfe0f3;letter-spacing:1px;margin-bottom:12px;
}
.rg-step h3{font-size:17px;margin-bottom:9px;}
.rg-step p{font-size:14.5px;color:var(--rg-muted);line-height:1.85;}

/* channel */
.rg-channel{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:38px;align-items:center;
  background:linear-gradient(135deg,#164a7d,#0c2c4d);
  border-radius:24px;padding:44px;
  color:#e8f1fb;
  box-shadow:0 26px 60px rgba(12,44,77,.28);
}
.rg-channel h2{color:#fff;font-size:clamp(22px,2.4vw,29px);}
.rg-channel p{color:#c6ddef;font-size:15.5px;line-height:1.9;margin-top:14px;}
.rg-channel-side{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:16px;padding:24px;
}
.rg-channel-side h3{color:#fff;font-size:16px;margin-bottom:12px;}
.rg-channel-side ul li{
  font-size:14px;color:#cfe3f4;line-height:1.8;
  padding-left:16px;position:relative;margin-bottom:8px;
}
.rg-channel-side ul li:last-child{margin-bottom:0;}
.rg-channel-side ul li::before{
  content:"";position:absolute;left:0;top:9px;
  width:6px;height:6px;border-radius:50%;background:#7fb6ee;
}
.rg-channel .rg-btn{margin-top:22px;}

/* safety */
.rg-safety{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.rg-safety-item{
  background:#fff;border:1px solid var(--rg-border);
  border-left:3px solid var(--rg-accent);
  border-radius:var(--rg-radius-sm);
  padding:22px;box-shadow:var(--rg-shadow-sm);
}
.rg-safety-item h3{font-size:15.5px;margin-bottom:8px;}
.rg-safety-item p{font-size:14px;color:var(--rg-muted);line-height:1.8;}

/* news */
.rg-news-list{display:grid;gap:18px;}
.rg-news-item{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius-sm);padding:24px;
  box-shadow:var(--rg-shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rg-news-item:hover{transform:translateY(-3px);box-shadow:var(--rg-shadow);border-color:#cfe0f3;}
.rg-news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.rg-news-time{font-size:12.5px;color:#8b9bad;}
.rg-news-title{font-size:17px;line-height:1.55;}
.rg-news-title a{color:var(--rg-primary-dark);}
.rg-news-title a:hover{color:var(--rg-accent);}
.rg-news-desc{margin-top:9px;font-size:14.2px;color:var(--rg-muted);line-height:1.8;}
.rg-news-more{margin-top:24px;}
.rg-empty{
  padding:34px;border-radius:var(--rg-radius-sm);
  background:#fff;border:1px dashed #cfdeef;
  color:var(--rg-muted);font-size:15px;text-align:center;
}
.rg-aside{background:#fff;border:1px solid var(--rg-border);border-radius:var(--rg-radius-sm);padding:26px;box-shadow:var(--rg-shadow-sm);}
.rg-aside h3{font-size:16px;margin-bottom:16px;}
.rg-aside-list li{
  font-size:14px;color:#4a5f76;line-height:1.75;
  padding:11px 0;border-bottom:1px dashed var(--rg-border);
}
.rg-aside-list li:last-child{border-bottom:0;padding-bottom:0;}
.rg-aside-list strong{display:block;color:var(--rg-primary-dark);font-size:14.5px;font-weight:600;margin-bottom:3px;}
.rg-aside-tip{
  margin-top:20px;padding:15px;border-radius:12px;
  background:var(--rg-accent-soft);color:#3f556c;font-size:13.5px;line-height:1.8;
}

/* faq */
.rg-faq{display:grid;gap:14px;}
.rg-faq-item{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius-sm);padding:22px 24px;
  box-shadow:var(--rg-shadow-sm);
}
.rg-faq-item h3{font-size:16px;margin-bottom:10px;display:flex;gap:10px;align-items:flex-start;}
.rg-faq-item h3 .q{
  flex-shrink:0;width:24px;height:24px;border-radius:7px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
}
.rg-faq-item p{font-size:14.5px;color:var(--rg-muted);line-height:1.85;padding-left:34px;}

/* cta */
.rg-cta{
  background:linear-gradient(135deg,#17497c,#0b2742);
  border-radius:26px;padding:48px;
  color:#e8f1fb;text-align:center;
  box-shadow:0 26px 60px rgba(11,39,66,.3);
}
.rg-cta h2{color:#fff;font-size:clamp(22px,2.6vw,30px);}
.rg-cta p{color:#c6ddef;font-size:15.5px;line-height:1.9;max-width:760px;margin:16px auto 0;}
.rg-cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px;}

/* footer */
.rg-footer{background:#0b2136;color:#9fb6cb;padding:58px 0 26px;margin-top:0;}
.rg-footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));gap:40px;}
.rg-footer .rg-logo-main{color:#fff;}
.rg-footer .rg-logo-sub{color:#8ba6bf;}
.rg-footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#93aec6;max-width:420px;}
.rg-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px;}
.rg-footer-links li{margin-bottom:10px;}
.rg-footer-links a{color:#9fb6cb;font-size:14px;}
.rg-footer-links a:hover,.rg-footer-links a:focus{color:#fff;}
.rg-footer-bottom{
  margin-top:40px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7d97ae;
}
.rg-footer-risk{margin-top:14px;font-size:12.5px;color:#6f8aa1;line-height:1.8;}

@media (max-width:1024px){
  .rg-hero-grid{grid-template-columns:minmax(0,1fr);gap:36px;}
  .rg-grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rg-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rg-safety{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rg-stage{grid-template-columns:minmax(0,1fr);gap:32px;}
  .rg-grid-news{grid-template-columns:minmax(0,1fr);}
  .rg-channel{grid-template-columns:minmax(0,1fr);padding:34px;}
  .rg-footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
  .rg-nav{margin-left:6px;}
  .rg-nav a{padding:9px 11px;font-size:14px;}
  .rg-locator{display:none;}
}
@media (max-width:768px){
  .rg-section{padding:56px 0;}
  .rg-menu-toggle{display:inline-flex;}
  .rg-nav{
    position:absolute;left:-24px;right:-24px;top:100%;
    display:none;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--rg-border);
    box-shadow:0 18px 34px rgba(18,63,109,.12);
    padding:12px 24px 18px;gap:4px;margin-left:0;
  }
  .rg-nav.is-open{display:flex;}
  .rg-nav a{padding:12px 14px;font-size:15px;}
  .rg-nav-side{margin-left:auto;}
  .rg-grid-2,.rg-grid-3,.rg-grid-4,.rg-safety,.rg-steps{grid-template-columns:minmax(0,1fr);}
  .rg-hero{padding:44px 0 56px;}
  .rg-hero-lead{font-size:15.5px;}
  .rg-quiz{padding:22px;}
  .rg-card{padding:24px;}
  .rg-channel{padding:28px;border-radius:20px;}
  .rg-cta{padding:34px 22px;border-radius:20px;}
  .rg-faq-item h3{font-size:15.2px;}
  .rg-faq-item p{padding-left:0;}
  .rg-footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .rg-window-note{text-align:left;}
}
@media (max-width:520px){
  .rg-container{padding:0 18px;}
  .rg-nav{left:-18px;right:-18px;padding:12px 18px 18px;}
  .rg-logo-main{font-size:15.5px;}
  .rg-logo-sub{font-size:11px;}
  .rg-logo-mark{width:36px;height:36px;border-radius:10px;font-size:14px;}
  .rg-hero h1{font-size:25px;}
  .rg-btn{width:100%;padding:13px 18px;}
  .rg-hero-actions{gap:10px;}
  .rg-cta-actions .rg-btn{width:100%;}
  .rg-dl-card .rg-btn{width:100%;}
  .rg-nav-side .rg-btn-sm{width:auto;}
  .rg-sec-title{font-size:21px;}
  .rg-window-rows li{font-size:12.8px;padding:10px 12px;}
}

/* roulang page: article */
:root{
  --rg-primary:#123f6d;
  --rg-primary-dark:#0c2c4d;
  --rg-primary-light:#1d5c9b;
  --rg-accent:#2f7ff0;
  --rg-accent-soft:#e9f2fe;
  --rg-bg:#f5f9fd;
  --rg-surface:#ffffff;
  --rg-text:#152438;
  --rg-muted:#64788f;
  --rg-border:#e3ebf5;
  --rg-radius:18px;
  --rg-radius-sm:12px;
  --rg-shadow-sm:0 4px 14px rgba(18,63,109,.06);
  --rg-shadow:0 14px 34px rgba(18,63,109,.09);
  --rg-shadow-lg:0 24px 60px rgba(18,63,109,.14);
  --rg-max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--rg-text);
  background:var(--rg-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--rg-primary-light);text-decoration:none;transition:color .2s ease;}
a:hover,a:focus{color:var(--rg-accent);}
a:focus-visible,button:focus-visible{outline:2px solid var(--rg-accent);outline-offset:3px;border-radius:8px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--rg-primary-dark);font-weight:700;line-height:1.38;}
p{margin:0 0 1em;}
.rg-container{width:100%;max-width:var(--rg-max);margin:0 auto;padding:0 24px;}

/* header */
.rg-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rg-border);
}
.rg-nav-wrap{display:flex;align-items:center;gap:18px;min-height:76px;position:relative;}
.rg-logo{display:flex;align-items:center;gap:11px;flex-shrink:0;text-decoration:none;}
.rg-logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(150deg,#2a6db5,#0c2c4d);
  color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(18,63,109,.24);
}
.rg-logo-text{display:flex;flex-direction:column;line-height:1.16;}
.rg-logo-main{font-size:17px;font-weight:700;color:var(--rg-primary-dark);white-space:nowrap;}
.rg-logo-sub{font-size:12px;color:var(--rg-muted);letter-spacing:1px;white-space:nowrap;}
.rg-nav{display:flex;align-items:center;gap:4px;margin-left:14px;}
.rg-nav a{
  display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:10px;
  font-size:15px;font-weight:500;color:#3c4f66;
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.rg-nav a:hover,.rg-nav a:focus{background:var(--rg-accent-soft);color:var(--rg-primary);}
.rg-nav a.is-active{background:var(--rg-accent-soft);color:var(--rg-primary);font-weight:700;}
.rg-nav-side{margin-left:auto;display:flex;align-items:center;gap:12px;}
.rg-menu-toggle{
  display:none;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--rg-border);
  border-radius:10px;padding:9px 13px;font-size:14px;
  color:var(--rg-primary);cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.rg-menu-toggle:hover{border-color:var(--rg-accent);color:var(--rg-accent);}

/* buttons */
.rg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.rg-btn-primary{
  background:linear-gradient(135deg,#2568ab,var(--rg-primary));
  color:#fff;box-shadow:0 10px 24px rgba(18,63,109,.22);
}
.rg-btn-primary:hover,.rg-btn-primary:focus{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,63,109,.28);}
.rg-btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(18,63,109,.2);}
.rg-btn-ghost{background:#fff;border-color:#cfdeef;color:var(--rg-primary);}
.rg-btn-ghost:hover,.rg-btn-ghost:focus{border-color:var(--rg-accent);color:var(--rg-accent);background:#f6faff;}
.rg-btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}
.rg-btn-block{width:100%;}

/* section */
.rg-section{padding:72px 0;}
.rg-section--alt{background:#fff;}
.rg-section--tight{padding:56px 0;}
.rg-eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  font-size:13px;font-weight:600;letter-spacing:.6px;
  margin-bottom:14px;
}
.rg-sec-title{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.rg-sec-desc{color:var(--rg-muted);font-size:15.5px;max-width:760px;margin:0 0 34px;}
.rg-tag{
  display:inline-block;padding:4px 11px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
}

/* article hero */
.rg-article-hero{
  position:relative;overflow:hidden;
  padding:38px 0 58px;
  background:
    radial-gradient(820px 400px at 6% -20%,#e7f1fd 0%,rgba(231,241,253,0) 62%),
    radial-gradient(760px 380px at 98% 0%,#e6f0fc 0%,rgba(230,240,252,0) 60%),
    #f7fafd;
  border-bottom:1px solid var(--rg-border);
}
.rg-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--rg-muted);margin-bottom:24px;}
.rg-crumb a{color:var(--rg-muted);}
.rg-crumb a:hover{color:var(--rg-accent);}
.rg-crumb .sep{color:#c3d3e4;}
.rg-crumb .is-current{color:#42586e;}
.rg-article-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:44px;align-items:start;}
.rg-article-title{
  font-size:clamp(25px,3vw,36px);
  line-height:1.34;
  letter-spacing:.3px;
  margin:14px 0 0;
  overflow-wrap:break-word;
}
.rg-article-lead{
  margin-top:18px;
  color:#41586f;
  font-size:15.5px;
  line-height:1.95;
  max-width:66ch;
}
.rg-article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:24px;font-size:13.5px;color:var(--rg-muted);
}
.rg-article-meta .rg-meta-item{display:inline-flex;align-items:center;gap:7px;}
.rg-article-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--rg-accent);}
.rg-hero-side{
  background:#fff;
  border:1px solid #cfdff1;
  border-top:4px solid var(--rg-accent);
  border-radius:var(--rg-radius);
  padding:26px 24px;
  box-shadow:var(--rg-shadow);
}
.rg-hero-side h2{font-size:17px;margin:10px 0 10px;}
.rg-hero-side p{font-size:14px;color:var(--rg-muted);line-height:1.85;margin:0 0 18px;}
.rg-side-list{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:10px;}
.rg-side-list li{
  display:flex;align-items:flex-start;gap:9px;
  font-size:14px;color:#3d5468;line-height:1.6;
}
.rg-side-list li::before{
  content:"";flex:0 0 7px;width:7px;height:7px;border-radius:50%;
  background:var(--rg-accent);margin-top:8px;
}

/* article layout */
.rg-article-layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:34px;align-items:start;}
.rg-article-card{
  background:var(--rg-surface);
  border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);
  padding:38px 40px;
  box-shadow:var(--rg-shadow-sm);
  min-width:0;
}
.rg-article-body{font-size:16.5px;line-height:1.95;color:#29405a;overflow-wrap:break-word;}
.rg-article-body h2{
  font-size:22px;margin:34px 0 14px;padding-left:14px;
  border-left:4px solid var(--rg-accent);color:var(--rg-primary-dark);
}
.rg-article-body h2:first-child{margin-top:0;}
.rg-article-body h3{font-size:18px;margin:26px 0 10px;color:var(--rg-primary);}
.rg-article-body h4{font-size:16px;margin:22px 0 8px;color:var(--rg-primary-light);}
.rg-article-body p{margin:0 0 16px;}
.rg-article-body ul,.rg-article-body ol{margin:0 0 18px;padding-left:22px;}
.rg-article-body li{margin-bottom:8px;}
.rg-article-body img{border-radius:var(--rg-radius-sm);margin:18px auto;box-shadow:var(--rg-shadow-sm);}
.rg-article-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:var(--rg-accent-soft);color:#33495f;
  border-left:4px solid var(--rg-primary-light);
  border-radius:0 12px 12px 0;
  font-size:15.5px;
}
.rg-article-body blockquote p:last-child{margin-bottom:0;}
.rg-article-body a{color:var(--rg-accent);text-decoration:underline;}
.rg-article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;}
.rg-article-body th,.rg-article-body td{border:1px solid var(--rg-border);padding:10px 12px;text-align:left;}
.rg-article-body th{background:#f2f7fd;color:var(--rg-primary-dark);font-weight:600;}
.rg-empty{color:var(--rg-muted);font-size:15.5px;}
.rg-empty-actions{margin-top:18px;}

.rg-article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;min-width:0;}
.rg-side-card{
  background:var(--rg-surface);
  border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);
  padding:24px 22px;
  box-shadow:var(--rg-shadow-sm);
}
.rg-side-card h3{font-size:15.5px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--rg-border);}
.rg-side-card p{font-size:14px;color:var(--rg-muted);line-height:1.8;margin:0 0 16px;}
.rg-info-row{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:8px 0;border-bottom:1px dashed #eaf1f9;}
.rg-info-row:last-child{border-bottom:0;}
.rg-info-row dt{color:var(--rg-muted);margin:0;flex:0 0 auto;}
.rg-info-row dd{margin:0;color:#2f465c;text-align:right;min-width:0;overflow-wrap:break-word;}

/* feature cards */
.rg-grid{display:grid;gap:22px;}
.rg-grid>*{min-width:0;}
.rg-grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.rg-card{
  background:var(--rg-surface);
  border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);
  padding:28px;
  box-shadow:var(--rg-shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rg-card:hover{transform:translateY(-4px);box-shadow:var(--rg-shadow);border-color:#cfe0f3;}
.rg-card h3{font-size:17.5px;margin-bottom:10px;}
.rg-card p{color:var(--rg-muted);font-size:14.8px;line-height:1.82;margin:0;}
.rg-card .rg-tag{margin-bottom:12px;}

/* download */
.rg-download{
  background:linear-gradient(140deg,#123f6d 0%,#0b2740 100%);
  border-radius:24px;
  padding:46px 44px;
  color:#fff;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:38px;
  align-items:center;
  box-shadow:var(--rg-shadow-lg);
}
.rg-download h2{color:#fff;font-size:clamp(21px,2.4vw,27px);margin-bottom:12px;}
.rg-download p{color:#a9c2d9;font-size:14.8px;line-height:1.85;margin:0;}
.rg-download .rg-eyebrow{background:rgba(255,255,255,.14);color:#cfe4f8;}
.rg-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;}
.rg-dl-btn{
  display:flex;flex-direction:column;align-items:center;gap:5px;
  padding:20px 12px;border-radius:14px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;text-align:center;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.rg-dl-btn:hover,.rg-dl-btn:focus{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-3px);border-color:rgba(255,255,255,.5);}
.rg-dl-btn .t{font-size:15px;font-weight:700;white-space:nowrap;}
.rg-dl-btn .s{font-size:12.5px;color:rgba(255,255,255,.72);white-space:nowrap;}

/* notice */
.rg-notice{
  background:#fff;border:1px solid var(--rg-border);
  border-left:5px solid var(--rg-accent);
  border-radius:var(--rg-radius);
  padding:30px 34px;
  box-shadow:var(--rg-shadow-sm);
}
.rg-notice h2{font-size:20px;margin-bottom:14px;}
.rg-notice-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px;}
.rg-notice-list li{
  position:relative;padding-left:20px;
  font-size:14.8px;color:#43596f;line-height:1.85;
}
.rg-notice-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--rg-accent);
}

/* channel */
.rg-channel{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;
  align-items:center;
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);
  padding:36px 38px;
  box-shadow:var(--rg-shadow-sm);
}
.rg-channel h2{font-size:clamp(20px,2.3vw,25px);margin-bottom:10px;}
.rg-channel p{color:var(--rg-muted);font-size:15px;line-height:1.85;margin:0;max-width:720px;}

/* footer */
.rg-footer{background:#0d2438;color:#b9cad9;padding:56px 0 28px;}
.rg-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;
  padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);
}
.rg-footer .rg-logo-main{color:#fff;}
.rg-footer .rg-logo-sub{color:#8ba7bd;}
.rg-footer-desc{font-size:14px;color:#9db4c8;line-height:1.85;margin:16px 0 0;max-width:520px;}
.rg-footer h4{color:#fff;font-size:15px;margin:0 0 14px;}
.rg-footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.rg-footer-links a{color:#b9cad9;font-size:14px;transition:color .2s ease;}
.rg-footer-links a:hover,.rg-footer-links a:focus{color:#fff;}
.rg-footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:20px;font-size:13px;color:#8299ad;
}
.rg-footer-risk{margin:16px 0 0;font-size:12.5px;line-height:1.9;color:#7d94a8;}

/* responsive */
@media (max-width:1024px){
  .rg-article-hero-inner{grid-template-columns:minmax(0,1fr);gap:30px;}
  .rg-article-layout{grid-template-columns:minmax(0,1fr);}
  .rg-article-side{position:static;}
  .rg-download{grid-template-columns:minmax(0,1fr);padding:38px 32px;gap:28px;}
  .rg-download .rg-dl-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .rg-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rg-channel{grid-template-columns:minmax(0,1fr);}
  .rg-channel .rg-btn{justify-self:start;}
  .rg-footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:900px){
  .rg-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border:1px solid var(--rg-border);
    border-radius:0 0 14px 14px;
    box-shadow:var(--rg-shadow);
    padding:12px;margin-left:0;gap:4px;
  }
  .rg-nav.is-open{display:flex;}
  .rg-nav a{padding:11px 14px;}
  .rg-menu-toggle{display:inline-flex;}
  .rg-nav-side .rg-btn-primary{display:none;}
}
@media (max-width:768px){
  .rg-container{padding:0 18px;}
  .rg-section{padding:52px 0;}
  .rg-section--tight{padding:42px 0;}
  .rg-article-hero{padding:28px 0 42px;}
  .rg-article-card{padding:26px 20px;}
  .rg-article-body{font-size:16px;}
  .rg-article-body h2{font-size:19.5px;margin-top:28px;}
  .rg-article-body h3{font-size:17px;}
  .rg-grid-3{grid-template-columns:minmax(0,1fr);}
  .rg-notice-list{grid-template-columns:minmax(0,1fr);}
  .rg-notice{padding:24px 20px;}
  .rg-download{padding:30px 22px;border-radius:18px;}
  .rg-download .rg-dl-grid{grid-template-columns:minmax(0,1fr);}
  .rg-channel{padding:26px 22px;}
  .rg-footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .rg-hero-side{padding:22px 20px;}
  .rg-card{padding:22px;}
}
@media (max-width:520px){
  .rg-logo-main{font-size:15.5px;}
  .rg-logo-sub{font-size:11px;}
  .rg-logo-mark{width:36px;height:36px;font-size:13.5px;border-radius:10px;}
  .rg-article-title{font-size:22px;}
  .rg-article-lead{font-size:15px;}
  .rg-btn{width:100%;}
  .rg-menu-toggle{width:auto;}
  .rg-channel .rg-btn,.rg-article-meta .rg-btn{width:auto;}
  .rg-article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .rg-footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --rg-primary:#123f6d;
  --rg-primary-dark:#0c2c4d;
  --rg-primary-light:#1d5c9b;
  --rg-accent:#2f7ff0;
  --rg-accent-soft:#e9f2fe;
  --rg-bg:#f5f9fd;
  --rg-surface:#ffffff;
  --rg-text:#152438;
  --rg-muted:#64788f;
  --rg-border:#e3ebf5;
  --rg-radius:18px;
  --rg-radius-sm:12px;
  --rg-shadow-sm:0 4px 14px rgba(18,63,109,.06);
  --rg-shadow:0 14px 34px rgba(18,63,109,.09);
  --rg-shadow-lg:0 24px 60px rgba(18,63,109,.14);
  --rg-max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--rg-text);
  background:var(--rg-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--rg-primary-light);text-decoration:none;transition:color .2s ease;}
a:hover,a:focus{color:var(--rg-accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.35;color:var(--rg-text);font-weight:700;}
p{margin:0 0 12px;}
ul,ol{margin:0;padding:0;list-style:none;}
.rg-container{width:100%;max-width:var(--rg-max);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.rg-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rg-border);
}
.rg-nav-wrap{display:flex;align-items:center;gap:18px;min-height:76px;position:relative;}
.rg-logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.rg-logo-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(150deg,#2a6db5,#0c2c4d);
  color:#fff;display:grid;place-items:center;
  font-size:15px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(18,63,109,.24);
}
.rg-logo-text{display:flex;flex-direction:column;line-height:1.16;}
.rg-logo-main{font-size:17px;font-weight:700;color:var(--rg-primary-dark);white-space:nowrap;}
.rg-logo-sub{font-size:12px;color:var(--rg-muted);letter-spacing:1px;white-space:nowrap;}
.rg-nav{display:flex;align-items:center;gap:4px;margin-left:14px;}
.rg-nav a{
  display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:10px;
  font-size:15px;font-weight:500;color:#3c4f66;
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.rg-nav a:hover,.rg-nav a:focus{background:var(--rg-accent-soft);color:var(--rg-primary);}
.rg-nav a.is-active{background:var(--rg-accent-soft);color:var(--rg-primary);font-weight:700;}
.rg-nav-side{margin-left:auto;display:flex;align-items:center;gap:12px;}
.rg-menu-toggle{
  display:none;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--rg-border);
  border-radius:10px;padding:9px 13px;font-size:14px;
  color:var(--rg-primary);cursor:pointer;
}
.rg-menu-toggle:hover{border-color:var(--rg-accent);color:var(--rg-accent);}

/* ---------- buttons ---------- */
.rg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.rg-btn-primary{
  background:linear-gradient(135deg,#2568ab,var(--rg-primary));
  color:#fff;box-shadow:0 10px 24px rgba(18,63,109,.22);
}
.rg-btn-primary:hover,.rg-btn-primary:focus{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(18,63,109,.28);}
.rg-btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(18,63,109,.2);}
.rg-btn-ghost{background:#fff;border-color:#cfdeef;color:var(--rg-primary);}
.rg-btn-ghost:hover,.rg-btn-ghost:focus{border-color:var(--rg-accent);color:var(--rg-accent);background:#f6faff;}
.rg-btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}

/* ---------- section ---------- */
.rg-section{padding:76px 0;}
.rg-section--alt{background:#fff;}
.rg-section--tint{background:linear-gradient(180deg,#f2f7fd,#f8fbfe);}
.rg-eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  font-size:13px;font-weight:600;letter-spacing:.6px;
  margin-bottom:14px;
}
.rg-sec-head{max-width:780px;margin-bottom:36px;}
.rg-sec-head h2{font-size:clamp(22px,2.6vw,31px);}
.rg-sec-head p{color:var(--rg-muted);font-size:15.5px;margin:0;}

/* ---------- grids & cards ---------- */
.rg-grid{display:grid;gap:22px;}
.rg-grid>*{min-width:0;}
.rg-grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.rg-grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.rg-grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.rg-card{
  display:block;
  background:var(--rg-surface);
  border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);
  padding:28px;
  box-shadow:var(--rg-shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rg-card:hover{transform:translateY(-4px);box-shadow:var(--rg-shadow);border-color:#cfe0f3;}
.rg-card h3{font-size:18px;margin-bottom:10px;}
.rg-card p{color:var(--rg-muted);font-size:15px;line-height:1.8;margin:0;}
.rg-tag{
  display:inline-block;padding:4px 11px;border-radius:999px;
  background:var(--rg-accent-soft);color:var(--rg-primary-light);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;margin-bottom:14px;
}
.rg-icon-box{
  width:44px;height:44px;border-radius:13px;
  background:linear-gradient(150deg,#e9f2fe,#d5e6fb);
  color:var(--rg-primary);display:grid;place-items:center;
  font-size:17px;font-weight:700;margin-bottom:16px;
}
.rg-check-list{margin:14px 0 0;display:grid;gap:9px;}
.rg-check-list li{
  position:relative;padding-left:20px;
  font-size:14.5px;color:var(--rg-muted);line-height:1.75;
}
.rg-check-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:8px;height:8px;border-radius:50%;
  background:var(--rg-accent);opacity:.75;
}

/* ---------- hero ---------- */
.rg-page-hero{
  position:relative;overflow:hidden;
  padding:56px 0 68px;
  background:
    radial-gradient(900px 460px at 6% -16%,#e6f0fd 0%,rgba(230,240,253,0) 62%),
    radial-gradient(820px 420px at 98% 2%,#e4effb 0%,rgba(228,239,251,0) 60%),
    #f7fafd;
  border-bottom:1px solid var(--rg-border);
}
.rg-page-hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:46px;align-items:center;}
.rg-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--rg-muted);margin-bottom:16px;}
.rg-crumb a{color:var(--rg-muted);}
.rg-crumb a:hover{color:var(--rg-accent);}
.rg-crumb span.sep{color:#b8c9da;}
.rg-page-hero h1{font-size:clamp(25px,3vw,37px);line-height:1.32;letter-spacing:.3px;}
.rg-hero-lead{margin-top:18px;color:#41586f;font-size:16px;line-height:1.95;}
.rg-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.rg-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.rg-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--rg-border);
  font-size:13.5px;color:#42586e;box-shadow:var(--rg-shadow-sm);
}
.rg-chip span.dot{width:7px;height:7px;border-radius:50%;background:var(--rg-accent);}

/* phone-style panel */
.rg-phone{
  max-width:352px;margin:0 0 0 auto;
  background:#fff;border:1px solid var(--rg-border);
  border-radius:26px;padding:18px;
  box-shadow:var(--rg-shadow-lg);
  display:flex;flex-direction:column;gap:14px;
  min-height:430px;
}
.rg-phone-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.rg-phone-title{font-size:14.5px;font-weight:700;color:var(--rg-primary-dark);}
.rg-phone-badge{
  font-size:11.5px;font-weight:600;color:var(--rg-primary-light);
  background:var(--rg-accent-soft);border-radius:999px;padding:3px 9px;
}
.rg-phone-list{display:grid;gap:9px;flex:1;}
.rg-phone-list li{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:12px;
  background:#f7fafd;border:1px solid #eaf1f9;
  min-width:0;
}
.rg-phone-ico{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(150deg,#2a6db5,#0c2c4d);
  color:#fff;font-size:12px;font-weight:700;
  display:grid;place-items:center;
}
.rg-phone-name{
  font-size:14px;color:#2c4054;font-weight:600;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rg-phone-tag{
  margin-left:auto;flex-shrink:0;font-size:11.5px;color:var(--rg-muted);
  background:#fff;border:1px solid var(--rg-border);
  border-radius:999px;padding:2px 9px;
}
.rg-phone-foot{
  border-top:1px dashed #dbe7f3;padding-top:12px;
  font-size:12.5px;color:var(--rg-muted);text-align:center;letter-spacing:.4px;
}

/* steps */
.rg-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.rg-step{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);padding:26px;
  box-shadow:var(--rg-shadow-sm);min-width:0;
  transition:transform .22s ease,box-shadow .22s ease;
}
.rg-step:hover{transform:translateY(-3px);box-shadow:var(--rg-shadow);}
.rg-step-num{
  width:38px;height:38px;border-radius:11px;
  background:var(--rg-accent-soft);color:var(--rg-primary);
  display:grid;place-items:center;font-weight:700;font-size:15px;
  margin-bottom:14px;
}
.rg-step h3{font-size:16.5px;margin-bottom:8px;}
.rg-step p{font-size:14.5px;color:var(--rg-muted);margin:0;line-height:1.8;}

/* download */
.rg-download{
  background:linear-gradient(135deg,#0e3257,#17497c 62%,#1d5c9b);
  border-radius:26px;padding:46px;
  color:#fff;box-shadow:var(--rg-shadow-lg);
}
.rg-download-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:36px;align-items:center;}
.rg-download h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.rg-download p{color:#c6dcf2;font-size:15px;line-height:1.85;margin:0;}
.rg-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;}
.rg-dl-btn{
  display:flex;flex-direction:column;gap:3px;min-width:0;
  padding:18px 18px;border-radius:14px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;
  transition:background .2s ease,transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rg-dl-btn strong{font-size:15.5px;color:#fff;font-weight:700;white-space:nowrap;}
.rg-dl-btn span{font-size:12.5px;color:rgba(255,255,255,.78);white-space:nowrap;}
.rg-dl-btn:hover,.rg-dl-btn:focus{
  background:rgba(255,255,255,.2);border-color:#fff;
  color:#fff;transform:translateY(-3px);
  box-shadow:0 14px 28px rgba(4,20,38,.3);
}
.rg-dl-note{margin-top:16px;font-size:12.5px;color:rgba(255,255,255,.7);line-height:1.8;}

/* news */
.rg-news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rg-news-card{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);padding:24px;
  box-shadow:var(--rg-shadow-sm);min-width:0;
  display:flex;flex-direction:column;gap:10px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rg-news-card:hover{transform:translateY(-4px);box-shadow:var(--rg-shadow);border-color:#cfe0f3;}
.rg-news-card h3{font-size:16.5px;line-height:1.55;margin:0;}
.rg-news-link{color:var(--rg-primary-dark);}
.rg-news-link:hover,.rg-news-link:focus{color:var(--rg-accent);}
.rg-news-card p{font-size:14.5px;color:var(--rg-muted);margin:0;line-height:1.8;}
.rg-news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:auto;padding-top:8px;font-size:12.5px;color:var(--rg-muted);}
.rg-news-cat{background:var(--rg-accent-soft);color:var(--rg-primary-light);border-radius:999px;padding:2px 10px;font-weight:600;}
.rg-empty{
  background:#fff;border:1px dashed #cfdeef;border-radius:var(--rg-radius-sm);
  padding:30px;text-align:center;color:var(--rg-muted);font-size:15px;
}

/* faq */
.rg-faq{display:grid;gap:14px;}
.rg-faq details{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius-sm);padding:18px 22px;
  box-shadow:var(--rg-shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.rg-faq details:hover{border-color:#cfe0f3;box-shadow:var(--rg-shadow);}
.rg-faq summary{
  cursor:pointer;font-weight:700;color:var(--rg-primary);
  font-size:15.5px;list-style:none;outline:none;
}
.rg-faq summary::-webkit-details-marker{display:none;}
.rg-faq summary::after{content:"＋";float:right;color:var(--rg-accent);font-weight:700;}
.rg-faq details[open] summary::after{content:"－";}
.rg-faq summary:focus-visible{outline:2px solid var(--rg-accent);outline-offset:4px;border-radius:6px;}
.rg-faq p{margin:12px 0 0;color:var(--rg-muted);font-size:14.8px;line-height:1.85;}

/* cta strip */
.rg-cta{
  background:#fff;border:1px solid var(--rg-border);
  border-radius:var(--rg-radius);padding:38px;
  box-shadow:var(--rg-shadow);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.rg-cta h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:8px;}
.rg-cta p{margin:0;color:var(--rg-muted);font-size:15px;}
.rg-cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* footer */
.rg-footer{background:#0d2b48;color:#c5d7ea;padding:62px 0 28px;}
.rg-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;}
.rg-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.rg-footer .rg-logo-mark{box-shadow:none;}
.rg-footer .rg-logo-main{color:#fff;}
.rg-footer .rg-logo-sub{color:#8fb0cc;}
.rg-footer-desc{font-size:14px;line-height:1.85;color:#a9c1d8;margin:16px 0 0;}
.rg-footer-links li{margin-bottom:10px;}
.rg-footer-links a{color:#c5d7ea;font-size:14px;transition:color .2s ease;}
.rg-footer-links a:hover,.rg-footer-links a:focus{color:#fff;}
.rg-footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:38px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8fb0cc;
}
.rg-footer-risk{margin:16px 0 0;font-size:12.5px;line-height:1.85;color:#7f9ab4;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .rg-page-hero-grid{grid-template-columns:1fr;gap:34px;}
  .rg-phone{margin:0 auto;}
  .rg-grid-3,.rg-grid-4,.rg-steps,.rg-news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rg-download-grid{grid-template-columns:1fr;}
  .rg-footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .rg-nav-wrap{flex-wrap:wrap;}
  .rg-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border:1px solid var(--rg-border);
    border-radius:14px;box-shadow:var(--rg-shadow);
    padding:10px;display:none;margin-left:0;z-index:90;
  }
  .rg-nav.is-open{display:flex;}
  .rg-nav a{justify-content:flex-start;padding:12px 14px;}
  .rg-menu-toggle{display:inline-flex;}
  .rg-nav-side .rg-btn{display:none;}
}
@media (max-width:768px){
  .rg-container{padding:0 18px;}
  .rg-section{padding:52px 0;}
  .rg-page-hero{padding:38px 0 48px;}
  .rg-grid-2,.rg-grid-3,.rg-grid-4,.rg-steps,.rg-news-grid,.rg-dl-grid{grid-template-columns:1fr;}
  .rg-download{padding:30px 22px;border-radius:20px;}
  .rg-cta{padding:28px 22px;}
  .rg-footer-grid{grid-template-columns:1fr;gap:26px;}
  .rg-footer{padding:48px 0 24px;}
  .rg-phone{max-width:100%;min-height:0;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .rg-card{padding:22px;}
  .rg-logo-main{font-size:15.5px;}
  .rg-logo-sub{font-size:11px;}
  .rg-hero-actions .rg-btn{width:100%;}
  .rg-dl-btn strong,.rg-dl-btn span{white-space:normal;}
}