/* roulang page: index */
:root{
  --bg-deep:#071224;
  --bg-navy:#0A1D3A;
  --primary:#21D9FF;
  --primary-deep:#0b9fcb;
  --violet:#7B6CFF;
  --gold:#F5C464;
  --text-main:#EAF2FF;
  --text-2:rgba(234,242,255,.68);
  --text-3:rgba(234,242,255,.44);
  --glass-bg:rgba(255,255,255,.055);
  --glass-bg-2:rgba(255,255,255,.10);
  --glass-border:rgba(255,255,255,.14);
  --radius:16px;
  --radius-sm:10px;
  --shadow-line:0 0 0 1px rgba(255,255,255,.04) inset, 0 20px 60px rgba(0,0,0,.3);
  --shadow-glow:0 0 20px rgba(33,217,255,.28);
  --gutter:90px;
}
::selection{background:rgba(33,217,255,.3);color:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg-deep);
  color:var(--text-main);
  line-height:1.72;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(140,167,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(140,167,255,.035) 1px,transparent 1px);
  background-size:52px 52px;
  pointer-events:none;
  z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .2s,border .2s,background .2s}
a:hover{color:var(--primary)}
img,a,button,input,textarea,select{outline:none}
img{max-width:100%;display:block}
button{border:0}
.container{max-width:1240px;padding-left:24px;padding-right:24px}
section,footer{position:relative;z-index:1}
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.32;letter-spacing:-.4px;color:var(--text-main)}
p{margin-bottom:0}
.sec-title{font-size:36px;color:#fff;letter-spacing:-.5px}
.sec-sub{color:var(--text-2);font-size:16px;max-width:720px}
.section-pad{padding-top:var(--gutter);padding-bottom:var(--gutter)}
.mb-16{margin-bottom:16px}.mb-40{margin-bottom:40px}.mb-56{margin-bottom:56px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--primary);
  background:rgba(33,217,255,.1);
  border:1px solid rgba(33,217,255,.24);
  padding:8px 16px;
  border-radius:100px;
  text-transform:uppercase;
  margin-bottom:20px;
}
.eyebrow i{line-height:1}
.divider{
  height:1px;border:0;
  background:linear-gradient(90deg,transparent,rgba(120,180,255,.25) 30%,rgba(33,217,255,.65) 50%,rgba(120,180,255,.25) 70%,transparent);
  margin:0;
}
.glass{margin:0;border:1px solid var(--glass-border);background:var(--glass-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:var(--radius)}

/* Buttons */
.btn{--bs-btn-border-width:0;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:100px;font-weight:700;padding:13px 28px;font-size:15px;line-height:1.4;letter-spacing:.02em;transition:all .22s cubic-bezier(.2,.8,.2,1)}
.btn:focus-visible,.form-control:focus-visible,.form-check-input:focus-visible{outline:2px solid var(--primary);outline-offset:3px;box-shadow:none}
.btn-cyan{
  background:linear-gradient(135deg,#2ee5ff,#16c6ea);
  color:#02101F;
  box-shadow:0 10px 28px rgba(33,217,255,.18),0 0 18px rgba(33,217,255,.2);
  border:1px solid rgba(255,255,255,.25);
}
.btn-cyan:hover{color:#02101f; background:linear-gradient(135deg,#54eeff,#18cfef); transform:translateY(-2px); box-shadow:0 14px 34px rgba(33,217,255,.32),0 0 30px rgba(33,217,255,.25)}
.btn-cyan:active{transform:scale(.98)}
.btn-glass{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.35);color:#fff;backdrop-filter:blur(8px)}
.btn-glass:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);border-color:rgba(255,255,255,.6)}
.btn-glass:active{transform:translateY(0)}

/* Header & Nav */
.site-header{
  position:sticky;top:0;z-index:1080;
  background:rgba(7,18,36,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.site-header::before{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(33,217,255,.35),transparent);
  opacity:.7;
}
.navbar{padding:0;min-height:66px;flex-wrap:nowrap}
.navbar-brand{
  display:flex;align-items:center;gap:8px;padding:0 34px 0 0;margin:0;
  line-height:1.2;
}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(33,217,255,.24),rgba(123,108,255,.2));
  border:1px solid rgba(33,217,255,.36);
  box-shadow:0 0 18px rgba(33,217,255,.14),inset 0 0 10px rgba(33,217,255,.09);
  color:var(--primary);font-size:17px;
}
.brand-mark i{text-shadow:0 0 12px rgba(33,217,255,.8)}
.brand-text{display:flex;flex-direction:column;line-height:1.18;letter-spacing:0}
.brand-text-strong{font-size:23px;font-weight:900;color:#fff;display:flex;align-items:baseline;gap:4px}
.brand-text-strong small{font-size:12px;font-weight:700;color:var(--primary);letter-spacing:.16em}
.brand-text-sub{font-size:10px;font-weight:600;color:var(--text-3);letter-spacing:.5em;margin-top:3px}
.nav-channel{
  display:flex;align-items:stretch;gap:4px;margin:0;padding:0;list-style:none;
}
.nav-channel .nav-link{
  display:flex;align-items:center;
  padding:20px 12px;font-size:14px;font-weight:500;color:var(--text-2);
  position:relative;white-space:nowrap;
}
.nav-channel .nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  border-radius:2px 2px 0 0;
  background:linear-gradient(90deg,var(--primary),var(--violet));
  opacity:0;transform:scaleX(.4);transition:.25s;
}
.nav-channel .nav-link:hover{color:#fff}
.nav-channel .nav-link:hover::after,.nav-channel .nav-link.active::after{opacity:1;transform:scaleX(1)}
.nav-channel .nav-link.active{color:#fff}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-form{
  position:relative;width:220px;transition:width .3s;
}
.search-form:focus-within{width:260px}
.search-form .form-control{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.14);
  border-radius:50px;
  padding:8px 38px 8px 34px;
  height:40px;
  color:#fff;
  font-size:14px;
  transition:border .25s,background .25s;
}
.search-form .form-control::placeholder{color:rgba(234,242,255,.4)}
.search-form .form-control:focus{background:rgba(255,255,255,.1);border-color:rgba(33,217,255,.65);box-shadow:0 0 0 3px rgba(33,217,255,.1)}
.search-form .search-ico{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  color:var(--text-3);font-size:13px;pointer-events:none;
}
.search-form .btn-search{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  width:30px;height:30px;border-radius:50%;background:transparent;color:var(--text-3);font-size:13px;
}
.search-form .btn-search:hover{color:var(--primary)}
.nav-right .btn{padding:8px 18px;font-size:13px;border-radius:100px}
.nav-right .btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.22);color:var(--text-main)}
.nav-right .btn-ghost:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.4)}
.nav-right .btn-go{
  background:var(--primary);color:#02101F;font-weight:800;
  border:1px solid rgba(255,255,255,.18);
  padding:8px 18px;box-shadow:0 4px 14px rgba(33,217,255,.28)
}
.nav-right .btn-go:hover{background:#57ecff;color:#031522;box-shadow:0 4px 22px rgba(33,217,255,.45)}
.navbar-toggler{border:1px solid rgba(255,255,255,.22);border-radius:10px;width:46px;height:44px;display:grid;place-items:center;padding:0}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(33,217,255,.22)}
.navbar-toggler i{color:#fff}
@media (min-width:1280px){
  .nav-channel{gap:6px}
  .nav-channel .nav-link{padding-left:14px;padding-right:14px;font-size:14px}
  .nav-right .btn-go{margin-left:4px}
}

/* Hero */
.hero-section{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  padding:110px 0 70px;
  background-image:linear-gradient(180deg,rgba(7,18,36,.35) 0%,rgba(7,18,36,.56) 45%,#071224 100%);
  background-size:cover;
}
.hero-section::before{
  content:"";pointer-events:none;
  position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat fixed;
  opacity:.28;z-index:-2;
}
.hero-section::after{
  content:"";pointer-events:none;
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(circle at 76% 28%,rgba(33,217,255,.13),transparent 38%),
    radial-gradient(circle at 10% 90%,rgba(123,108,255,.12),transparent 34%);
}
.hero-inner{display:flex;align-items:center}
.hero-copy{padding-right:24px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px 7px 16px;
  font-size:13px;border-radius:100px;
  background:rgba(33,217,255,.1);
  border:1px solid rgba(33,217,255,.22);
  color:var(--primary);margin-bottom:22px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary);animation:pulseDot 2s infinite}
@keyframes pulseDot{0%,100%{opacity:1}50%{opacity:.4}}
.hero-title{
  font-size:56px;
  font-weight:900;
  color:#fff;
  letter-spacing:-.5px;
  line-height:1.24;
  margin:0 0 22px;
}
.hero-title .keyword{color:#fff;background:linear-gradient(90deg,#2ee5ff,#62f2ff,#8c83ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{
  font-size:17px;color:var(--text-2);
  max-width:610px;line-height:1.8;margin-bottom:32px;
  letter-spacing:.01em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-note{display:flex;flex-wrap:wrap;gap:26px;color:var(--text-3);font-size:13px}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note i{color:var(--gold)}
.hero-visual-wrap{position:relative}
.hero-console{
  border-radius:24px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(8,20,42,.34);
  backdrop-filter:blur(16px);
  box-shadow:0 25px 70px rgba(0,0,0,.42),0 0 0 1px rgba(255,255,255,.04) inset;
  padding:14px;
}
.hero-console .console-head{display:flex;align-items:center;gap:8px;padding:10px 6px 16px}
.hero-console .dot-bars{display:flex;gap:7px}
.hero-console .dot-bars i{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.14)}
.hero-console .dot-bars i:first-child{background:rgba(255,122,122,.65)}
.hero-console .dot-bars i:nth-child(2){background:rgba(245,196,100,.65)}
.hero-console .dot-bars i:nth-child(3){background:rgba(33,217,255,.65)}
.console-screen{border-radius:16px;overflow:hidden;position:relative}
.console-screen img{width:100%;height:280px;object-fit:cover}
.console-screen::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,18,36,0) 35%,rgba(7,18,36,.45));pointer-events:none}
.console-float{
  position:absolute;left:18px;right:18px;bottom:16px;
  display:flex;align-items:center;gap:10px;
  background:rgba(7,18,36,.52);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.15);
  border-radius:14px;
  padding:10px 14px;
  color:#fff;font-size:13px;
}
.console-float .state{
  width:30px;height:30px;border-radius:10px;
  background:rgba(33,217,255,.18);display:grid;place-items:center;
  color:var(--primary);
}
.console-float .state-text{line-height:1.3}
.console-float .state-text b{font-size:14px}
.console-float .state-text small{color:var(--text-3);font-size:12px}
.console-float .pass{i{margin-left:auto;color:var(--primary);font-size:13px}}
.pulse-ring{
  position:absolute;z-index:2;top:34px;right:-16px;
  width:110px;height:110px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(33,217,255,.26),transparent 66%);
  border:1px solid rgba(33,217,255,.24);
  animation:floatRing 6s infinite ease-in-out;
}
@keyframes floatRing{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-12px) scale(1.05)}}
.scroll-hint{
  position:absolute;bottom:18px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--text-3);font-size:11px;
}
.scroll-hint .mouse{width:1px;height:36px;background:linear-gradient(180deg,var(--primary),transparent);position:relative;overflow:hidden}
.scroll-hint .mouse::before{content:"";position:absolute;top:-4px;left:-2px;width:5px;height:5px;background:#fff;border-radius:50%;box-shadow:0 0 8px var(--primary);animation:scrollDown 2.2s infinite}
@keyframes scrollDown{0%{top:-4px}70%{top:36px}100%{top:36px}}
@media (max-width:1199.98px){
  .nav-channel{display:none}
  .navbar{flex-wrap:wrap}
  .collapse.navbar-collapse{
    width:100%;border-top:1px solid rgba(255,255,255,.05);
    margin-top:0;padding:14px 0 18px;background:rgba(7,18,36,.94);
    border-radius:0 0 18px 18px;
  }
  .nav-channel{flex-direction:column;width:100%;gap:2px;margin-top:12px}
  .nav-channel .nav-link{border-radius:12px}
  .nav-channel .nav-link::after{display:none}
  .nav-right{width:100%;margin-left:0;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.06);padding-top:14px}
  .search-form{width:100%}
  .search-form:focus-within{width:100%}
  .nav-right .btn{flex:1}
  .navbar-brand{margin-right:auto}
}
@media (max-width:991.98px){
  :root{--gutter:64px}
  .hero-section{padding-top:90px;padding-bottom:80px}
  .hero-copy{padding-right:0}
  .hero-title{font-size:40px}
  .hero-sub{font-size:16px}
  .hero-visual-wrap{margin-top:52px}
  .console-screen img{height:240px}
  .pulse-ring{width:90px;height:90px;top:20px;right:-6px}
}
@media (max-width:767.98px){
  :root{--gutter:56px}
  .container{padding-left:18px;padding-right:18px}
  .sec-title{font-size:28px}
  .hero-title{font-size:32px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-note{flex-direction:column;gap:10px}
}

/* Metric strip */
.metric-strip{
  border-radius:22px;border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
  backdrop-filter:blur(8px);
  padding:0;
  display:flex;justify-content:space-between;
  margin-top:-36px;margin-bottom:20px;
}
.metric-strip .metric-item{
  flex:1;text-align:center;padding:28px 14px;position:relative;color:#fff;
}
.metric-strip .metric-item+.metric-item::before{content:"";position:absolute;left:0;top:24%;bottom:24%;width:1px;background:linear-gradient(180deg,transparent,rgba(255,255,255,.18),transparent)}
.metric-item .num{font-size:40px;font-weight:900;line-height:1.1;display:block;background:linear-gradient(90deg,#fff,#8cebff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.metric-item .num sup{font-size:16px;font-weight:700;top:-.4em}
.metric-item .name{font-size:13px;color:rgba(234,242,255,.7);margin-top:6px}
@media (max-width:767.98px){
  .metric-strip{flex-direction:column;margin-top:-12px;padding:18px 0}
  .metric-strip .metric-item+.metric-item::before{left:8%;right:8%;top:0;bottom:auto;width:auto;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent)}
  .metric-item .num{font-size:28px}
}

/* Section intro */
.section-head{margin-bottom:42px}
.section-head.center{text-align:center}
.section-head.center .sec-sub{margin-left:auto;margin-right:auto}
.text-icon{
  width:54px;height:54px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(33,217,255,.12),rgba(123,108,255,.1));
  border:1px solid rgba(33,217,255,.28);
  color:var(--primary);font-size:20px;
}
.text-icon.purple{color:var(--violet);border-color:rgba(123,108,255,.3)}

/* Steps */
.steps-section{background:transparent}
.steps-wrap{position:relative;margin-top:30px}
.steps-connector{display:none}
@media(min-width:992px){
  .steps-wrap::before{
    content:"";position:absolute;top:74px;left:13%;right:13%;
    height:1px;z-index:0;
    background-image:linear-gradient(90deg,rgba(33,217,255,.7),rgba(255,255,255,.16) 25%,rgba(255,255,255,.16) 75%,rgba(123,108,255,.7));
  }
}
.steps-row{position:relative;z-index:2;display:flex;gap:28px}
.step-card{
  flex:1;border-radius:18px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.13);
  padding:30px 24px;
  position:relative;
  transition:.28s;
}
.step-card:hover{transform:translateY(-6px);border-color:rgba(33,217,255,.45);background:rgba(255,255,255,.08);box-shadow:var(--shadow-glow)}
.step-num{
  font-size:15px;font-weight:900;letter-spacing:.14em;
  color:var(--primary);
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 10px;border:1px solid rgba(33,217,255,.24);
  border-radius:100px;background:rgba(33,217,255,.08);
}
.step-num i{color:var(--gold)}
.step-icon{
  width:68px;height:68px;border-radius:20px;
  margin:20px 0 18px;
  background:linear-gradient(145deg,rgba(33,217,255,.25),rgba(123,108,255,.22));
  border:1px solid rgba(255,255,255,.3);
  display:grid;place-items:center;font-size:28px;color:#fff;
  box-shadow:inset 0 0 20px rgba(33,217,255,.08);
}
.step-card h3{font-size:20px;margin-bottom:8px;font-weight:700}
.step-card p{color:var(--text-2);font-size:14px;line-height:1.8;min-height:72px}
.step-more{margin-top:18px;font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:6px}
.step-card:hover .step-more{color:var(--primary)}
.step-more i{transition:transform .2s}
.step-card:hover .step-more i{transform:translateX(5px)}
@media(max-width:991.98px){
  .steps-row{flex-direction:column}
  .step-card p{min-height:auto}
}

/* Cases */
.cases-section{background:linear-gradient(180deg,transparent,rgba(10,29,58,.42))}
.case-scene{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 46px;align-items:start;margin-top:28px}
.case-row{display:flex;flex-direction:column;row-gap:34px}
.case-row.mt-extra{margin-top:46px}
.case-card{
  display:grid;grid-template-columns:120px 1fr;column-gap:22px;
  border-radius:20px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.12);
  padding:18px;
  transition:.3s;
  min-height:168px;
}
.case-card:hover{transform:translateY(-4px);border-color:rgba(33,217,255,.42);background:rgba(255,255,255,.08);box-shadow:0 18px 42px rgba(0,0,0,.22)}
.case-card .case-img{border-radius:16px;overflow:hidden;width:120px;height:120px;background:linear-gradient(135deg,#0d3450,#16324f)}
.case-card .case-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.case-card:hover .case-img img{transform:scale(1.06)}
.case-body{display:flex;flex-direction:column}
.case-body .quote-text{font-size:15px;color:#dce5ee;line-height:1.75;font-weight:600}
.case-body .meta-line{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:16px}
.case-body .meta{border:1px solid rgba(255,255,255,.11);background:rgba(255,255,255,.03);padding:6px 10px;border-radius:8px;font-size:12px;color:var(--text-2)}
.case-body .meta b{color:var(--text-main);font-weight:600}
@media(max-width:767.98px){
  .case-scene{display:flex;flex-direction:column;gap:22px}
  .case-row.mt-extra{margin-top:0}
  .case-card{grid-template-columns:94px 1fr;column-gap:14px;padding:14px;align-items:start}
  .case-card .case-img{width:94px;height:94px}
  .case-card .quote-text{font-size:14px}
}
@media(max-width:420px){
  .case-card{grid-template-columns:1fr}
  .case-card .case-img{width:100%;height:120px;margin-bottom:14px}
}

/* FAQ custom */
.faq-layout{display:grid;grid-template-columns:1fr 1.4fr;gap:46px;align-items:start}
.faq-side .sticky-helper{position:sticky;top:110px}
.faq-side .help-chip{
  display:flex;align-items:flex-start;gap:12px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:20px;
  margin-top:28px;
}
.faq-side .help-chip i{color:var(--primary);font-size:18px;margin-top:2px}
.faq-side .help-chip p{font-size:14px;color:var(--text-2)}
.faq-side .help-chip a{color:var(--primary);font-weight:600}
.accordion.faq-acc{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:0;display:flex;flex-direction:column;gap:14px}
.accordion.faq-acc .accordion-item{border-radius:18px;overflow:hidden;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.11)}
.accordion.faq-acc .accordion-item:has(.show),.accordion.faq-acc .accordion-item:has(.collapsing){border-color:rgba(33,217,255,.4);box-shadow:0 0 0 1px rgba(33,217,255,.1),0 12px 30px rgba(0,0,0,.18)}
.accordion.faq-acc .accordion-button{
  background:transparent;color:#fff;font-weight:700;font-size:16px;
  padding:20px 22px 20px 24px;box-shadow:none;
  border-radius:18px!important;
  gap:12px;
}
.accordion.faq-acc .accordion-button::after{content:"\2b";font-family:"Font Awesome 6 Free";background:none;font-weight:900;width:auto;height:auto;font-size:15px;color:var(--text-3);transition:transform .2s}
.accordion.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--primary)}
.accordion.faq-acc .accordion-button:focus-visible{box-shadow:0 0 0 3px rgba(33,217,255,.4);outline:none}
.accordion.faq-acc .accordion-button:not(.collapsed){background:transparent}
.accordion.faq-acc .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:0 4px 4px 0;background:var(--primary)}
.accordion.faq-acc .accordion-body{padding:0 24px 22px 24px;color:var(--text-2);font-size:14px;line-height:1.85}
@media(max-width:991px){
  .faq-layout{grid-template-columns:1fr;gap:18px}
  .faq-side .sticky-helper{position:static}
}

/* CTA */
.cta-section{
  padding-top:88px;padding-bottom:88px;
}
.cta-shell{
  position:relative;overflow:hidden;border-radius:26px;
  background:linear-gradient(135deg,rgba(13,38,68,.95),rgba(7,30,55,.94));
  border:1px solid rgba(255,255,255,.12);
  padding:34px;
}
.cta-shell::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.12;mix-blend-mode:screen;
}
.cta-shell::after{
  content:"";position:absolute;width:440px;height:200px;border-radius:50%;
  background:radial-gradient(ellipse,rgba(33,217,255,.26),transparent 68%);
  top:-80px;right:-70px;filter:blur(10px);
}
.cta-row{position:relative;z-index:5;display:grid;grid-template-columns:5fr 7fr;gap:52px}
.cta-explain h2{font-size:32px}
.cta-explain p{color:var(--text-2);margin-top:16px;line-height:1.85;font-size:15px}
.cta-steps{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:14px}
.cta-steps li{display:flex;gap:14px;align-items:flex-start;font-size:14px;color:var(--text-2)}
.cta-steps li .step-flag{width:28px;height:28px;flex:0 0 28px;border-radius:8px;background:rgba(33,217,255,.16);border:1px solid rgba(33,217,255,.3);color:var(--primary);font-weight:800;display:grid;place-items:center;font-size:13px}
.cta-form-card{border-radius:22px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);padding:30px;backdrop-filter:blur(18px);box-shadow:var(--shadow-line)}
.form-label{font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.04em}
.form-control{
  background:rgba(2,10,20,.34);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;height:48px;border-radius:10px;font-size:15px;
  padding:12px 16px;sans-serif:"Noto Sans SC","Microsoft YaHei";
}
.form-control option{background:#0a1d3a;color:#fff}
.form-control:focus{background:rgba(2,10,20,.48);border-color:var(--primary);box-shadow:0 0 0 3px rgba(33,217,255,.13)}
.form-control::placeholder{color:rgba(234,242,255,.42)}
textarea.form-control{height:auto;min-height:90px;resize:none}
.form-check-input{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.3);width:18px;height:18px}
.form-check-input:checked{background-color:var(--primary);border-color:var(--primary)}
.form-check-label{font-size:13px;color:var(--text-3)}
.form-check-label a{color:var(--primary)}
.form-check-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(33,217,255,.18)}
@media(max-width:991.98px){
  .cta-shell{padding:24px}
  .cta-row{grid-template-columns:1fr;gap:26px}
  .cta-explain h2{font-size:26px}
}
@media(max-width:575.98px){
  .cta-form-card{padding:20px}
  .cta-row .btn{width:100%}
}

/* CMS news */
.news-section{background:linear-gradient(180deg,transparent,rgba(10,29,58,.3))}
.news-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:32px;align-items:top}
.news-feature .feature-card{position:relative;border-radius:22px;overflow:hidden;border:1px solid rgba(255,255,255,.12);min-height:390px;display:flex;align-items:flex-end;background:#081b32}
.news-feature .feature-card::before{content:"";position:absolute;inset:0;background:url("/assets/images/coverpic/cover-3.png") center/cover;opacity:.5;z-index:0;transition:.4s}
.news-feature .feature-card:hover::before{opacity:.7;transform:scale(1.02)}
.news-feature .feature-body{position:relative;z-index:2;padding:34px;background:linear-gradient(180deg,transparent,rgba(4,10,20,.88))}
.feature-body .cate{display:inline-block;font-size:12px;color:#fff;background:rgba(33,217,255,.5);border-radius:100px;padding:4px 12px;margin-bottom:14px}
.feature-body h3{font-size:24px;line-height:1.5;font-weight:800}
.feature-body p{color:var(--text-2);font-size:14px;margin:10px 0}
.news-list{display:flex;flex-direction:column;gap:12px}
.news-list .news-item{
  display:flex;align-items:center;gap:18px;
  border-radius:16px;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.11);
  padding:16px 20px;
  transition:.25s;
}
.news-item:hover{background:rgba(255,255,255,.09);border-color:rgba(33,217,255,.4)}
.news-item .level-tag{color:var(--primary);font-size:12px;width:60px;flex:0 0 60px;display:inline-flex;align-items:center}
.news-item .news-main{flex:1;min-width:0}
.news-item .news-title{
  font-size:15px;font-weight:600;color:#fff;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:.2s
}
.news-item:hover .news-title{color:var(--primary)}
.news-item .news-summary{color:var(--text-3);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-item .news-date{font-size:12px;color:var(--text-3);flex:0 0 96px;text-align:right}
.news-link{display:inline-flex;align-items:center;margin-top:16px;color:var(--primary);font-size:14px;font-weight:700}
.news-link i{transition:.2s}
.news-link:hover i{transform:translateX(4px)}
.news-empty{
  grid-column:1/-1;border-radius:22px;
  border:1px dashed rgba(255,255,255,.2);
  background:rgba(255,255,255,.05);
  padding:60px;text-align:center;
  color:var(--text-3);font-size:15px;
}
.news-empty i{display:block;font-size:36px;color:var(--text-3);margin-bottom:8px}
@media(max-width:991.98px){
  .news-grid{grid-template-columns:1fr}
}
@media(max-width:575px){
  .news-item{flex-wrap:wrap;gap:8px;padding:12px}
  .news-item .news-date{flex:1;text-align:right}
}

/* Footer */
.footer{background:#04101f;border-top:1px solid rgba(255,255,255,.06);padding-top:64px}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(33,217,255,.45) 50%,transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:36px}
.footer-logo .foot-about{font-size:14px;color:var(--text-2);margin-top:20px;line-height:1.9}
.footer-title{font-size:14px;color:#fff;font-weight:700;margin-bottom:18px}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-links a{color:var(--text-2);font-size:14px}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-contact{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.footer-contact li{display:flex;gap:10px;color:var(--text-2);font-size:14px;align-items:flex-start}
.footer-contact li i{margin-top:2px;color:var(--primary);width:18px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 22px;
  font-size:13px;color:var(--text-3);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* Floating mobile cta */
.mobile-cta{display:none}
@media(max-width:767.98px){
  .mobile-cta{
    display:grid;position:fixed;z-index:1100;
    left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));
    grid-template-columns:1fr 1fr;gap:10px;
  }
  .mobile-cta .btn{width:100%;border-radius:16px;padding:14px;font-size:15px}
  body{padding-bottom:74px}
  .footer{scroll-margin-bottom:60px}
}
.mobile-cta .btn-glass{background:rgba(70,80,95,.64);color:#fff;border-color:rgba(255,255,255,.25)}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --bg-deep:#071224; --bg-panel:#0A1D3A; --bg-soft:#0E2546;
  --cyan:#21D9FF; --violet:#7B6CFF; --gold:#F5C464;
  --text:#EAF2FF; --muted:rgba(234,242,255,.68); --faint:rgba(234,242,255,.44);
  --line:rgba(255,255,255,.12); --line-soft:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.05); --glass-strong:rgba(255,255,255,.09);
  --radius:16px; --radius-sm:12px;
  --shadow-main:0 0 22px rgba(33,217,255,.28);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{background:var(--bg-deep);color:var(--text);font-family:var(--font);line-height:1.72;font-size:16px;overflow-x:hidden;
background-image:radial-gradient(circle at 50% 0%,rgba(33,217,255,.06),transparent 42%),linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
background-size:100% 100%,42px 42px,42px 42px;}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cyan)}
ul,ol{list-style:none;padding:0;margin:0}
img{max-width:100%;display:block}
.container{max-width:1240px}
.site-header{position:sticky;top:0;z-index:1080;min-height:64px;background:rgba(7,18,36,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line-soft);transition:background .3s ease}
.site-header .navbar{min-height:64px;padding:10px 0;flex-wrap:wrap}
.site-header .navbar>.container{display:flex;align-items:center;flex-wrap:wrap;gap:20px;row-gap:10px}
.navbar-brand{display:flex;align-items:center;gap:10px;padding:0;margin:0;color:var(--text)!important;line-height:1.15}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,rgba(33,217,255,.18),rgba(123,108,255,.14));border:1px solid rgba(33,217,255,.35);color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 0 18px rgba(33,217,255,.16)}
.brand-text{display:flex;flex-direction:column}
.brand-text-strong{font-size:18px;font-weight:800;letter-spacing:.2px;color:var(--text)}
.brand-text-strong small{color:var(--cyan);font-size:12px;font-weight:800;margin-left:2px}
.brand-text-sub{font-size:12px;color:var(--muted);letter-spacing:1px}
.navbar-toggler{width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.04);color:var(--text);font-size:18px;display:flex;align-items:center;justify-content:center;padding:0}
.navbar-toggler:hover{background:var(--glass-strong);border-color:rgba(33,217,255,.42)}
.site-header .navbar-collapse{flex:1 1 100%;margin-top:10px;border-top:1px solid rgba(255,255,255,.05);padding-top:10px}
@media (min-width:1200px){
  .site-header .navbar>.container{flex-wrap:nowrap}
  .site-header .navbar-collapse{display:flex;flex:1 1 auto;align-items:center;margin-top:0;border-top:0;padding-top:0;gap:28px}
}
.nav-channel{display:flex;flex-direction:column;gap:4px}
.nav-channel li{line-height:1}
.site-header .nav-link{position:relative;display:block;padding:10px 12px;font-size:15px;font-weight:500;color:var(--muted);border-radius:9px;transition:color .2s ease}
.nav-link i{font-size:14px}
@media (min-width:1200px){
  .nav-channel{flex-direction:row;gap:2px}
  .nav-link{white-space:nowrap}
}
.site-header .nav-link:hover{color:var(--text)}
.site-header .nav-link.active,.site-header .nav-link:focus{color:var(--text)}
.site-header .nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),rgba(33,217,255,.12));transform:scaleX(0);transform-origin:left;transition:transform .25s ease}
.site-header .nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
@media (min-width:1200px){.nav-right{margin-left:auto}.nav-right{flex-wrap:nowrap}}
.search-form{position:relative;width:100%;max-width:360px;display:flex;align-items:center;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);border-radius:999px;transition:all .25s ease}
@media (min-width:1200px){.search-form{width:220px}}
.search-form:focus-within{border-color:rgba(33,217,255,.7);box-shadow:0 0 0 2px rgba(33,217,255,.12);background:rgba(255,255,255,.09);width:260px}
.search-ico{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:14px;color:var(--faint);pointer-events:none}
.search-form .form-control{background:transparent;border:0;height:42px;border-radius:999px;padding-left:38px;padding-right:50px;font-size:14px;color:var(--text);box-shadow:none}
.search-form .form-control::placeholder{color:var(--faint)}
.btn-search{position:absolute;right:5px;top:50%;transform:translateY(-50%);width:32px;height:32px;border-radius:50%;border:0;background:rgba(33,217,255,.18);color:var(--cyan);display:flex;align-items:center;justify-content:center;transition:.2s}
.btn-search:hover{background:var(--cyan);color:#02101F}
.btn{font-family:var(--font);border-radius:10px;border:1px solid transparent;font-weight:600;transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:0 18px}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost i{color:var(--cyan)}
.btn-ghost:hover{background:rgba(255,255,255,.13);color:#fff;border-color:rgba(33,217,255,.5)}
.btn-go{background:linear-gradient(135deg,var(--cyan),#9BE9FF);color:#02101F;box-shadow:0 0 20px rgba(33,217,255,.18)}
.btn-go:hover{background:linear-gradient(135deg,#43DFFF,#21D9FF);color:#02101F;box-shadow:0 0 28px rgba(33,217,255,.4);transform:scale(1.03)}
.btn-go:active{transform:scale(.99)}
.page-banner{position:relative;padding:78px 0 92px;background:linear-gradient(90deg,rgba(7,18,36,.97) 0%,rgba(7,18,36,.88) 42%,rgba(10,29,58,.72) 100%),url('/assets/images/backpic/back-2.webp') center/cover;border-bottom:1px solid rgba(255,255,255,.05)}
.page-banner .banner-wrap{position:relative;z-index:2}
.crumbs{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:999px;padding:6px 14px;margin-bottom:28px}
.crumbs a:hover{color:var(--cyan)}
.banner-title{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:-.5px;margin:0 0 20px;max-width:980px}
.banner-title .keyword{color:var(--cyan)}
.banner-lead{font-size:17px;color:var(--muted);max-width:720px;margin-bottom:30px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px}
.banner-tags span{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:var(--text);border-radius:999px;padding:8px 16px}
.banner-tags i{color:var(--cyan)}
@media (max-width:768px){.page-banner{padding:52px 0 64px}.banner-title{font-size:32px;letter-spacing:-.3px}.banner-lead{font-size:15px}}
.doc-area{position:relative;padding:74px 0 70px}
.doc-side{position:relative}
.doc-side-inner{position:sticky;top:92px;display:flex;flex-direction:column;gap:22px}
.side-card{background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:18px;padding:22px 18px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.side-heading{font-size:14px;font-weight:700;color:var(--text);padding:0 10px 12px;border-bottom:1px solid rgba(255,255,255,.06);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.side-heading i{color:var(--cyan)}
.side-anchor li a{display:flex;gap:8px;padding:10px 14px;margin:3px 0;border-radius:10px;font-size:14px;color:var(--muted);line-height:1.4;transition:.2s;border:1px solid transparent}
.side-anchor li a:hover,.side-anchor li a.active{color:var(--cyan);background:rgba(33,217,255,.08);border-color:rgba(33,217,255,.2)}
.side-anchor li a i{font-size:11px;margin-top:5px;color:var(--faint)}
.attach-file{border:1px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden;background:var(--bg-panel)}
.attach-file .thumb{width:100%;height:120px;object-fit:cover}
.attach-body{padding:18px}
.attach-body h5{font-size:15px;font-weight:700;margin-bottom:6px}
.attach-body p{font-size:13px;color:var(--muted);margin-bottom:14px}
.btn-block{display:flex;width:100%}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}
.doc-content-main{max-width:100%}
.policy-section{position:relative;background:linear-gradient(145deg,rgba(255,255,255,.045),rgba(255,255,255,.015));border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:26px 26px 28px;margin-bottom:24px;overflow:hidden}
@media (min-width:768px){.policy-section{padding:34px 38px 36px}}
.section-h2{font-size:24px;font-weight:700;color:var(--text);margin:0 0 8px;display:flex;align-items:center;gap:12px}
.section-h2::before{content:"";flex:0 0 auto;width:4px;height:22px;border-radius:4px;background:linear-gradient(180deg,var(--cyan),rgba(33,217,255,.12))}
.section-h2 i{color:var(--cyan);font-size:20px}
.section-lead{color:var(--muted);margin-bottom:22px}
.term-section-title{color:var(--muted);font-size:18px;margin:28px 0 14px;font-weight:600}
.vsplit{display:grid;grid-template-columns:1fr;gap:14px;margin-top:12px}
@media(min-width:768px){.vsplit{grid-template-columns:repeat(2,1fr)}}
.mini-block-info{background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:18px 18px}
.mini-block-info h4{font-size:16px;font-weight:600;margin-bottom:6px;color:var(--text);display:flex;align-items:center;gap:8px}
.mini-block-info h4 i{color:var(--cyan);width:20px}
.mini-block-info p{font-size:14px;line-height:1.68;color:var(--muted);margin:0}
.notice-box{display:flex;gap:12px;background:rgba(33,217,255,.07);border:1px solid rgba(33,217,255,.16);border-radius:14px;padding:16px 18px;margin-top:18px}
.notice-box .tx{flex:1}
.notice-box strong{color:var(--cyan);font-weight:600}
.notice-box p{color:var(--text);font-size:14px;margin:0}
.notice-warn{background:rgba(245,196,100,.07);border-color:rgba(245,196,100,.2)}
.notice-warn .tx strong{color:var(--gold)}
.tick-list{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.tick-list li{display:flex;gap:10px;font-size:15px;color:var(--text);padding:10px 16px;background:rgba(255,255,255,.025);border:1px solid rgba(255,255,255,.07);border-radius:12px}
.tick-list li i{color:var(--cyan);margin-top:4px;flex:0 0 auto}
.code-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;background:rgba(123,108,255,.15);color:#c9c3ff;border:1px solid rgba(123,108,255,.28);border-radius:999px;font-size:12px;margin:0 4px}
.strong-label{color:var(--cyan);font-weight:600}
.flow-line{display:grid;grid-template-columns:1fr;gap:10px;margin:16px 0 0;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.07);border-radius:16px;padding:16px 16px}
@media(min-width:992px){.flow-line{grid-template-columns:repeat(3,1fr)}}
.flow-line span{font-size:14px;color:var(--muted);display:flex;gap:10px;align-items:center}
.flow-line b{color:var(--cyan);font-weight:700}
.styled-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:18px;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.styled-table th,.styled-table td{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.06);text-align:left;font-size:14px}
.styled-table th{background:rgba(255,255,255,.06);color:var(--text);font-weight:600}
.styled-table td{color:var(--muted)}
.styled-table tr:last-child td{border-bottom:0}
.compliance-note{display:flex;gap:16px;padding:18px 20px;background:linear-gradient(135deg,rgba(245,196,100,.09),rgba(255,255,255,.03));border:1px solid rgba(245,196,100,.22);border-radius:14px;margin-top:24px}
.compliance-note i{color:var(--gold);font-size:22px;flex:0 0 auto}
.compliance-note p{font-size:14px;color:var(--muted);margin:0}
.faq-block{margin-top:30px;border-top:1px solid rgba(255,255,255,.07);padding-top:22px}
.faq-title{font-size:24px;font-weight:700;margin:0 0 8px;display:flex;align-items:center;gap:10px}
.faq-title i{color:var(--cyan)}
.faq-list{margin-top:18px;display:flex;flex-direction:column;gap:14px}
.faq-item{background:rgba(7,18,36,.55);border:1px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden}
.faq-item .faq-q{width:100%;display:flex;gap:12px;align-items:flex-start;justify-content:space-between;background:transparent;border:0;color:var(--text);font-size:16px;font-weight:600;padding:20px 22px;text-align:left;min-height:58px}
.faq-item .faq-q:hover{color:var(--cyan)}
.faq-item .faq-q i{transition:transform .25s ease;margin-top:4px;color:var(--cyan)}
.faq-item.accordion-button:not(.collapsed) i{transform:rotate(180deg)}
.mini-cta{position:relative;padding:40px 0 90px}
.cta-panel{position:relative;background:linear-gradient(120deg,rgba(33,217,255,.1) 0%,rgba(255,255,255,.04) 45%,rgba(123,108,255,.09) 100%);border:1px solid rgba(33,217,255,.24);border-radius:24px;padding:34px 28px;display:flex;flex-direction:column;gap:24px;align-items:flex-start;overflow:hidden}
.cta-panel::before{content:"";position:absolute;width:280px;height:280px;right:-110px;bottom:-110px;border-radius:50%;background:radial-gradient(circle,rgba(33,217,255,.13),transparent 70%)}
@media(min-width:768px){.cta-panel{padding:44px 56px}.cta-panel{flex-direction:row;justify-content:space-between;align-items:center}}
.cta-panel h2{font-size:28px;font-weight:800;margin-bottom:12px}
.cta-panel p{font-size:15px;color:var(--muted);margin:0}
.cta-panel .cta-url i{color:var(--east);}
.footer{background:#040B17;border-top:1px solid rgba(33,217,255,.16);padding:70px 0 0;position:relative}
.footer::before{content:"";position:absolute;top:0;left:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,rgba(33,217,255,.5),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding-bottom:44px}
@media(min-width:576px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1200px){.footer-grid{grid-template-columns:1.35fr .85fr 1fr 1fr}}
.footer-logo-col .navbar-brand{color:#fff!important;margin-bottom:14px}
.foot-about{color:rgba(234,242,255,.5);font-size:13px;line-height:1.75;max-width:320px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin:0 0 14px}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:14px;color:rgba(234,242,255,.54);display:inline-flex;gap:8px;align-items:center}
.footer-links a::before{content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:9px;color:var(--cyan)}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:rgba(234,242,255,.54)}
.footer-contact i{color:var(--cyan);font-size:15px;margin-top:3px;width:18px;flex:0 0 auto}
.footer-bottom{display:flex;flex-direction:column;align-items:center;gap:8px;border-top:1px solid rgba(255,255,255,.07);padding:18px 0 20px;font-size:13px;color:rgba(234,242,255,.4)}
.footer-bottom a{color:var(--cyan)}
@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between}}
@media(max-width:1199.98px){
.site-header .navbar-collapse .navbar-collapse-inner{width:100%}
.nav-channel{width:100%;border-bottom:1px solid rgba(255,255,255,.06);padding-bottom:6px;margin-bottom:6px}
.nav-right{width:100%}
}
@media(max-width:575.98px){
.navbar-brand .brand-text-sub{font-size:11px;letter-spacing:.6px}
.btn{min-height:44px}
.page-banner{padding:44px 0 56px}
.doc-area{padding-top:52px}
.policy-section{padding:22px 18px}
.section-h2{font-size:21px}
.tick-list li{font-size:14px}
.mini-block-info p{font-size:13px}
.cta-panel{padding:28px 20px}
.cta-panel h2{font-size:24px}
.doc-side-inner{position:static}
.side-card{max-width:100%}
}

/* roulang page: article */
:root{
    --bg-void:#050b17;
    --bg-deep:#071224;
    --bg-panel:#0a1d3a;
    --glass:rgba(255,255,255,.055);
    --glass-2:rgba(255,255,255,.085);
    --line:rgba(255,255,255,.12);
    --line-dim:rgba(255,255,255,.07);
    --cyan:#21d9ff;
    --cyan-soft:rgba(33,217,255,.14);
    --violet:#7b6cff;
    --gold:#f5c464;
    --white:#eaf2ff;
    --muted:rgba(234,242,255,.68);
    --faint:rgba(234,242,255,.44);
    --danger:#ff8f9d;
    --radius:16px;
    --radius-inner:10px;
    --shadow-cyan:0 0 22px 0 rgba(33,217,255,.32);
    --shadow-card:0 20px 60px rgba(0,0,0,.35);
    --font-fallback:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    background:
        radial-gradient(1100px 520px at 72% -10%, rgba(33,217,255,.10), transparent 62%),
        radial-gradient(900px 600px at 8% 20%, rgba(123,108,255,.08), transparent 60%),
        var(--bg-void);
    background-attachment:fixed;
    color:var(--white);
    font-family:var(--font-fallback);
    font-size:16px;
    line-height:1.72;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
}
body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background-image:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size:42px 42px;
    mask-image:linear-gradient(to bottom, rgba(0,0,0,.75), transparent 88%);
    -webkit-mask-image:linear-gradient(to bottom, rgba(0,0,0,.75), transparent 88%);
    z-index:0;
}
img{max-width:100%;height:auto}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease}
a:hover{color:#7be8ff}
h1,h2,h3,h4,h5,h6{margin:0 0 .55em;letter-spacing:-.02em;color:#fff}
p{margin:0 0 1em}
ul,ol{margin:0 0 1.25em;padding-left:1.25em}

/* layout */
.container{max-width:1240px}
a,button,input,textarea,select{outline:none}
a:focus-visible,button:focus-visible,input:focus-visible,.form-check-input:focus-visible{
    outline:2px solid var(--cyan) !important;
    outline-offset:3px;
    border-radius:6px;
}

/* header */
.site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:1080;
    background:rgba(6,12,26,.62);
    backdrop-filter:blur(18px) saturate(160%);
    -webkit-backdrop-filter:blur(18px) saturate(160%);
    border-bottom:1px solid rgba(255,255,255,.09);
    box-shadow:0 6px 30px rgba(0,0,0,.25);
    transition:background .3s,box-shadow .3s;
}
.site-header.scrolled{
    background:rgba(4,9,19,.88);
    box-shadow:0 10px 40px rgba(0,0,0,.44),0 1px 0 rgba(33,217,255,.18);
}
.site-header .navbar{
    min-height:68px;
    padding:0 1rem;
    gap:18px;
    flex-wrap:nowrap;
    align-items:center;
}
.navbar-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    margin:0;
    padding:6px 0;
    flex-shrink:0;
}
.brand-mark{
    width:36px;height:36px;
    border-radius:11px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--cyan);
    background:linear-gradient(135deg, rgba(33,217,255,.22), rgba(33,217,255,.02));
    border:1px solid rgba(33,217,255,.36);
    box-shadow:0 0 16px rgba(33,217,255,.22), inset 0 0 12px rgba(33,217,255,.10);
    font-size:16px;
}
.brand-text{display:inline-flex;flex-direction:column;line-height:1.05;letter-spacing:0}
.brand-text-strong{color:#fff;font-weight:800;font-size:19px;display:flex;align-items:baseline}
.brand-text-strong small{color:var(--cyan);font-size:11px;font-weight:700;margin-left:3px;letter-spacing:.06em}
.brand-text-sub{font-size:11px;color:var(--muted);font-weight:500;letter-spacing:.04em;margin-top:2px}

.navbar-toggler{
    border:1px solid rgba(255,255,255,.2);
    background:rgba(255,255,255,.04);
    color:#fff;
    border-radius:10px;
    width:44px;height:44px;
    display:inline-flex;align-items:center;justify-content:center;
    box-shadow:none;
}
.navbar-toggler:hover{border-color:var(--cyan);color:var(--cyan)}

.nav-channel{
    list-style:none;
    display:flex;
    align-items:center;
    gap:2px;
    margin:0;
    padding:0;
}
.nav-channel li{margin:0}
.nav-channel .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    min-height:44px;
    padding:.45rem .82rem;
    color:var(--muted);
    font-size:14px;
    font-weight:500;
    white-space:nowrap;
    border-radius:8px;
}
.nav-channel .nav-link:hover{
    color:#fff;
}
.nav-channel .nav-link::after{
    content:"";
    position:absolute;
    left:16px;right:16px;bottom:6px;
    height:2px;
    background:linear-gradient(90deg,var(--cyan),transparent);
    border-radius:99px;
    opacity:0;
    transform:scaleX(.4);
    transform-origin:left center;
    transition:all .25s ease;
}
.nav-channel .nav-link:hover::after{opacity:.8;transform:scaleX(1)}
.nav-channel .nav-link.active{color:#fff}
.nav-channel .nav-link.active::after{opacity:1;transform:scaleX(1)}

.nav-right{
    display:flex;
    align-items:center;
    gap:12px;
    margin-left:auto;
    flex-shrink:0;
}
.search-form{
    position:relative;
    width:220px;
}
.search-ico{
    position:absolute;
    left:14px;top:50%;
    transform:translateY(-50%);
    color:var(--faint);
    font-size:14px;
    pointer-events:none;
    transition:color .2s;
}
.search-form .form-control{
    height:42px;
    width:100%;
    padding:0 44px 0 38px;
    background:rgba(255,255,255,.055);
    border:1px solid var(--line);
    border-radius:99px;
    color:#fff;
    font-size:13px;
    box-shadow:none;
    transition:all .25s ease;
}
.search-form .form-control::placeholder{color:var(--faint)}
.search-form .form-control:focus{
    width:100%;
    background:rgba(255,255,255,.09);
    border-color:rgba(33,217,255,.55);
    box-shadow:0 0 0 3px var(--cyan-soft);
}
.search-form .form-control:focus ~ .search-ico{color:var(--cyan)}
.btn-search{
    position:absolute;
    right:4px;top:4px;
    height:34px;width:34px;
    border-radius:50%;
    border:0;
    background:transparent;
    color:var(--faint);
    font-size:13px;
    display:inline-flex;align-items:center;justify-content:center;
    transition:all .2s;
}
.btn-search:hover{color:var(--cyan);background:var(--cyan-soft)}

.btn{border-radius:10px;padding:.55rem 1.25rem;font-size:15px;font-weight:700;transition:all .25s;box-shadow:none;border:1px solid transparent}
.btn-ghost{
    color:#fff;
    background:rgba(255,255,255,.04);
    border-color:rgba(255,255,255,.18);
    backdrop-filter:blur(10px);
}
.btn-ghost:hover{
    background:rgba(255,255,255,.11);
    color:#fff;
    border-color:rgba(255,255,255,.32);
    transform:translateY(-1px);
}
.btn-go{
    background:var(--cyan);
    border-color:var(--cyan);
    color:#02101f;
    box-shadow:var(--shadow-cyan);
}
.btn-go:hover{
    background:#5fe5ff;
    border-color:#5fe5ff;
    color:#02101f;
    transform:translateY(-2px);
    box-shadow:0 0 30px rgba(33,217,255,.5);
}
.btn-outline-soft{
    color:#fff;
    background:transparent;
    border-color:rgba(255,255,255,.25);
}
.btn-outline-soft:hover{
    color:#fff;
    border-color:var(--cyan);
    background:var(--cyan-soft);
}

/* main */
.site-main{position:relative;z-index:1}
.article-page-main{
    padding:124px 0 64px;
    position:relative;
}
.article-page-main::before{
    content:"";
    position:absolute;
    top:0;right:-10%;
    width:780px;height:500px;
    background:radial-gradient(closest-side, rgba(33,217,255,.16), transparent);
    filter:blur(20px);
    pointer-events:none;
}
.article-page-main::after{
    content:"";
    position:absolute;
    top:260px;left:-16%;
    width:640px;height:440px;
    background:radial-gradient(closest-side, rgba(123,108,255,.11), transparent);
    pointer-events:none;
    z-index:-1;
}

.breadcrumb-zone{
    max-width:900px;
    margin:0 auto 28px;
    padding:0 16px;
}
.breadcrumb{
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line-dim);
    border-radius:99px;
    padding:8px 18px;
    backdrop-filter:blur(12px);
    width:fit-content;
}
.breadcrumb-item{font-size:13px;color:var(--faint)}
.breadcrumb-item a{color:var(--muted)}
.breadcrumb-item a:hover{color:var(--cyan)}
.breadcrumb-item+.breadcrumb-item::before{
    content:"·";
    color:var(--faint);
    padding-right:8px;
}
.breadcrumb-item.active{color:var(--cyan)}

.article-layout{
    max-width:1160px;
    margin:0 auto;
    display:grid;
    grid-template-columns:200px minmax(0,760px) 1fr;
    gap:32px;
    padding:0 24px;
}
.article-toc{
    position:sticky;
    top:100px;
    height:fit-content;
    max-height:calc(100vh - 120px);
    overflow:auto;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line-dim);
    border-radius:16px;
    padding:18px 16px;
    backdrop-filter:blur(16px);
}
.toc-title{
    font-size:14px;
    font-weight:700;
    color:#fff;
    padding:0 8px 14px;
    margin-bottom:10px;
    border-bottom:1px solid var(--line-dim);
    display:flex;
    align-items:center;
    gap:8px;
}
.toc-title i{color:var(--cyan)}
.toc-list{list-style:none;margin:0;padding:0}
.toc-list li{margin:0}
.toc-list a{
    display:block;
    padding:6px 10px;
    margin:1px 0;
    color:var(--muted);
    font-size:13px;
    line-height:1.45;
    border-radius:8px;
    text-decoration:none;
    border-left:2px solid transparent;
}
.toc-list a:hover{color:#fff;background:rgba(255,255,255,.06)}
.toc-list a.active{
    color:var(--cyan);
    border-left-color:var(--cyan);
    background:var(--cyan-soft);
}

.article-col{min-width:0}
.article-paper{
    background:rgba(255,255,255,.045);
    border:1px solid var(--line);
    border-radius:22px;
    backdrop-filter:blur(18px);
    box-shadow:var(--shadow-card);
    padding:clamp(24px,5vw,58px);
    position:relative;
    overflow:hidden;
}
.article-paper::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:1px;
    background:linear-gradient(90deg, transparent, rgba(33,217,255,.7), transparent);
}

.article-head{
    text-align:center;
    padding:4px 0 28px;
}
.article-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:600;
    color:var(--cyan);
    background:var(--cyan-soft);
    border:1px solid rgba(33,217,255,.25);
    padding:5px 12px;
    border-radius:99px;
    margin-bottom:18px;
}
.article-title{
    font-size:clamp(32px,calc(1.6rem + 2vw),54px);
    font-weight:800;
    line-height:1.2;
    margin:0 0 16px;
    letter-spacing:-.03em;
    text-wrap:balance;
    background:linear-gradient(180deg,#fff,rgba(233,245,255,.88));
    -webkit-background-clip:text;
    background-clip:text;
    -webkit-text-fill-color:transparent;
}
.article-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:center;
    gap:12px;
    color:var(--faint);
    font-size:13px;
}
.article-meta .meta-item{
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.meta-chip{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--muted);
    background:rgba(255,255,255,.06);
    border:1px solid var(--line-dim);
    border-radius:99px;
    padding:2px 11px;
    font-size:12px;
}
.article-divider{
    border:0;
    height:1px;
    background:linear-gradient(90deg, transparent, var(--line), transparent);
    margin:0 0 32px;
}

/* body */
.article-cms-body{
    max-width:100%;
    color:rgba(235,244,255,.88);
    font-size:17px;
    line-height:1.9;
    word-break:break-word;
}
.article-cms-body h2{
    font-size:clamp(23px,2vw,29px);
    font-weight:700;
    margin:34px 0 18px;
    color:#fff;
    padding-left:14px;
    border-left:4px solid var(--cyan);
    line-height:1.45;
}
.article-cms-body h3{
    font-size:21px;
    font-weight:650;
    margin:28px 0 12px;
    color:var(--white);
    line-height:1.5;
}
.article-cms-body p{margin:0 0 1.1em}
.article-cms-body a{border-bottom:1px solid rgba(33,217,255,.3)}
.article-cms-body ul li, .article-cms-body ol li{margin-bottom:.45em}
.article-cms-body blockquote{
    position:relative;
    margin:30px 0;
    padding:20px 24px 18px 30px;
    background:linear-gradient(100deg, rgba(123,108,255,.14), rgba(255,255,255,.03));
    border:1px solid rgba(123,108,255,.22);
    border-radius:14px;
    color:rgba(234,242,255,.82);
    font-size:16px;
}
.article-cms-body blockquote::before{
    content:"“";
    position:absolute;
    left:10px;top:8px;
    font-size:38px;
    color:var(--violet);
    line-height:1;
    opacity:.7;
}
.article-cms-body img{
    border-radius:16px;
    margin:18px 0 24px;
    border:1px solid var(--line-dim);
    box-shadow:var(--shadow-card);
}
.article-cms-body pre{
    background:#081223;
    border:1px solid var(--line-dim);
    border-radius:12px;
    padding:18px 20px;
    overflow:auto;
    line-height:1.7;
    font-size:13px;
    margin:0 0 22px;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.article-cms-body code{
    font-family:"Roboto Mono",Consolas,Menlo,monospace;
    background:rgba(33,217,255,.08);
    border:1px solid rgba(33,217,255,.14);
    color:#8eecff;
    padding:.12em .4em;
    border-radius:6px;
    font-size:.88em;
}
.article-cms-body pre code{background:none;border:0;color:#cfe9ff;padding:0}
.article-cms-body table{
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    margin:24px 0;
    font-size:15px;
    border:1px solid var(--line-dim);
    border-radius:14px;
    overflow:hidden;
}
.article-cms-body th,.article-cms-body td{padding:13px 16px;border-bottom:1px solid var(--line-dim);text-align:left;vertical-align:top}
.article-cms-body tr:last-child td{border-bottom:0}
.article-cms-body th{background:rgba(33,217,255,.07);color:var(--white);font-weight:700}
.article-cms-body p:last-child{margin-bottom:0}

.article-end-note{
    display:flex;
    align-items:flex-start;
    gap:14px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line-dim);
    border-left:3px solid var(--gold);
    border-radius:14px;
    padding:18px 20px;
    margin-top:40px;
}
.article-end-note i{color:var(--gold);margin-top:4px}

.article-bottom-bar{
    display:flex;
    flex-wrap:wrap;
    justify-content:space-between;
    align-items:center;
    gap:14px;
    margin-top:36px;
    padding-top:26px;
    border-top:1px solid var(--line-dim);
}
.article-source{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--faint);
    font-size:13px;
    flex-wrap:wrap;
}
.article-source .avatar-mini{
    width:30px;height:30px;
    border-radius:50%;
    background:linear-gradient(135deg,#21d9ff,#7b6cff);
    display:inline-flex;align-items:center;justify-content:center;
    color:#fff;
    font-size:12px;
    font-weight:700;
}
.article-actions{display:inline-flex;gap:10px;flex-wrap:wrap}
.article-actions .btn{padding:.5rem 1.02rem;font-size:14px}

/* empty */
.empty-block{
    text-align:center;
    padding:40px 20px 30px;
}
.empty-icon{
    font-size:54px;
    color:var(--cyan);
    opacity:.7;
    display:block;
    margin-bottom:20px;
    text-shadow:0 0 30px rgba(33,217,255,.35);
}
.empty-block h1{
    font-size:30px;
    color:#fff;
    margin:0 0 12px;
}
.empty-block p{color:var(--muted);max-width:440px;margin:0 auto 24px}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* related */
.related-section{
    max-width:880px;
    margin:44px auto 0;
    padding:0 24px;
}
.related-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:22px;
}
.related-head h2{
    font-size:clamp(24px,3vw,30px);
    font-weight:800;
    margin:0;
}
.related-head .sub{font-size:14px;color:var(--faint);white-space:nowrap}
.related-stack{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
}
.related-item{
    display:grid;
    grid-template-columns:148px minmax(0,1fr);
    align-items:stretch;
    background:rgba(255,255,255,.045);
    border:1px solid var(--line-dim);
    border-radius:16px;
    overflow:hidden;
    transition:all .25s ease;
    backdrop-filter:blur(10px);
}
.related-item:hover{
    transform:translateY(-4px);
    border-color:rgba(33,217,255,.4);
    box-shadow:var(--shadow-cyan);
    background:rgba(255,255,255,.07);
}
.related-thumb{
    position:relative;
    min-height:120px;
    overflow:hidden;
}
.related-thumb img{
    width:100%;height:100%;
    object-fit:cover;
    display:block;
    transition:transform .4s ease;
}
.related-item:hover .related-thumb img{transform:scale(1.06)}
.related-thumb::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(90deg, transparent, rgba(5,11,23,.35));
}
.related-body{padding:20px 22px;display:flex;flex-direction:column;justify-content:center;min-width:0}
.related-body h3{font-size:18px;font-weight:700;margin:0 0 6px;line-height:1.4}
.related-body h3 a{color:#fff}
.related-body h3 a:hover{color:var(--cyan)}
.related-body p{font-size:13.5px;color:var(--muted);line-height:1.6;margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--faint);font-size:12px}
.related-tags .tag{color:var(--cyan);background:var(--cyan-soft);border-radius:99px;padding:1px 9px}

.return-actions{
    display:flex;
    justify-content:center;
    gap:14px;
    margin-top:36px;
    flex-wrap:wrap;
}

/* rail */
.article-rail .rail-card{
    position:sticky;
    top:100px;
    background:rgba(255,255,255,.035);
    border:1px solid var(--line-dim);
    border-radius:16px;
    padding:18px;
    backdrop-filter:blur(12px);
    font-size:13px;
}
.rail-card .rail-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.rail-card .rail-title i{color:var(--cyan)}
.rail-dot{display:flex;gap:10px;paddng:5px 0;color:var(--muted);line-height:1.5}
.rail-dot i{color:var(--violet)}
.rail-list{list-style:none;margin:0;padding:0}
.rail-list li{padding:6px 0;border-bottom:1px dashed var(--line-dim)}
.rail-list li:last-child{border-bottom:0}
.rail-list a{color:var(--muted)}
.rail-list a:hover{color:var(--cyan)}

/* bottom mini cta */
.page-mini-cta{
    background:radial-gradient(800px 260px at 50% 0%, rgba(33,217,255,.18), transparent 70%),
                rgba(255,255,255,.03);
    border-top:1px solid var(--line-dim);
    border-bottom:1px solid var(--line-dim);
    padding:54px 20px;
    backdrop-filter:blur(8px);
    text-align:center;
}
.mini-cta-inner{
    max-width:760px;
    margin:0 auto;
}
.mini-cta-inner h2{font-size:clamp(26px,4vw,32px);font-weight:800;margin-bottom:12px}
.mini-cta-inner p{color:var(--muted);margin-bottom:24px}
.mini-cta-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* footer */
.footer{
    background:#050c19;
    border-top:1px solid rgba(33,217,255,.18);
    position:relative;
    padding:68px 0 0;
    margin-top:0;
}
.footer::before{
    content:"";
    position:absolute;
    top:-1px;left:10%;right:10%;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(33,217,255,.75),transparent);
}
.footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.3fr;
    gap:40px;
    padding-bottom:52px;
}
.footer-logo-col .navbar-brand{margin-bottom:16px}
.footer-logo-col .navbar-brand .brand-mark{width:32px;height:32px;border-radius:9px;font-size:14px}
.footer-logo-col .brand-text-strong{font-size:17px}
.footer-logo-col .brand-text-sub{font-size:11px}
.foot-about{color:var(--faint);font-size:13.5px;line-height:1.8;max-width:320px;margin:18px 0 0}
.footer-title{
    font-size:16px;
    font-weight:700;
    color:#fff;
    margin-bottom:16px;
    padding-bottom:10px;
    position:relative;
}
.footer-title::after{
    content:"";
    position:absolute;
    left:0;bottom:0;
    width:30px;height:2px;
    background:var(--cyan);
}
.footer-links,.footer-contact{
    list-style:none;
    margin:0;padding:0;
}
.footer-links li,.footer-contact li{margin-bottom:13px}
.footer-links a{
    color:var(--muted);
    font-size:14px;
    transition:all .2s;
    display:inline-flex;
    align-items:center;
    gap:7px;
}
.footer-links a::before{
    content:"→";
    font-size:12px;
    color:var(--cyan);
    opacity:0;
    transform:translateX(-6px);
    transition:all .2s;
}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-links a:hover::before{opacity:1;transform:translateX(0)}
.footer-contact li{
    display:flex;
    gap:10px;
    align-items:flex-start;
    color:var(--muted);
    font-size:13.5px;
    line-height:1.55;
}
.footer-contact i{color:var(--cyan);margin-top:3px}
.footer-bottom{
    border-top:1px solid var(--line-dim);
    padding:22px 0;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    color:var(--faint);
    font-size:13px;
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--cyan)}

/* responsive */
@media (max-width:1199.98px){
    .nav-channel .nav-link{padding:.45rem .55rem}
    .search-form{width:190px}
}
@media (max-width:991.98px){
    .site-header .navbar{min-height:64px}
    .navbar-collapse{
        background:rgba(4,10,21,.94);
        border:1px solid var(--line-dim);
        border-radius:18px;
        padding:18px 16px;
        margin-top:10px;
        margin-bottom:10px;
        backdrop-filter:blur(20px);
        box-shadow:0 16px 40px rgba(0,0,0,.45);
    }
    .nav-channel{
        flex-direction:column;
        align-items:stretch;
        gap:2px;
        margin-bottom:14px;
    }
    .nav-channel .nav-link{
        min-height:46px;
        padding:12px 14px;
        font-size:16px;
        width:100%;
        border-radius:10px;
    }
    .nav-channel .nav-link::after{display:none}
    .nav-channel .nav-link.active{background:var(--cyan-soft)}
    .nav-right{
        flex-wrap:wrap;
        margin-left:0;
        border-top:1px solid var(--line-dim);
        padding-top:16px;
    }
    .search-form{width:100%;order:0}
    .search-form .form-control{width:100%}
    .search-form .form-control:focus{width:100%}
    .article-layout{
        grid-template-columns:minmax(0,1fr);
        gap:22px;
        padding:0 20px;
    }
    .article-toc{display:none}
    .article-rail{display:none}
    .article-paper{padding:28px 20px}
}
@media (max-width:767.98px){
    .article-page-main{padding:112px 0 40px}
    .breadcrumb-zone{padding:0 12px}
    .breadcrumb{flex-wrap:wrap;border-radius:16px;padding:8px 12px}
    .article-layout{padding:0 14px}
    .article-paper{border-radius:18px}
    .article-title{font-size:30px}
    .article-cms-body{font-size:16px;line-height:1.8}
    .article-bottom-bar{flex-direction:column;align-items:flex-start}
    .related-section{padding:0 14px}
    .related-head{flex-direction:column;align-items:flex-start;gap:8px}
    .related-head .sub{white-space:normal}
    .related-item{grid-template-columns:104px minmax(0,1fr)}
    .related-body{padding:14px}
    .related-body h3{font-size:15.5px}
    .related-body p{font-size:12.5px}
    .related-thumb{min-height:100px}
    .return-actions .btn{width:100%}
    .footer{padding-top:48px}
    .footer-grid{
        grid-template-columns:1fr;
        gap:34px;
        padding-bottom:36px;
    }
    .foot-about{max-width:100%}
    .footer-bottom{flex-direction:column;text-align:center;padding:20px 0}
    .article-actions{width:100%}
    .article-actions .btn{flex:1;text-align:center}
    .mini-cta-actions .btn{width:100%}
}
@media (max-width:390px){
    .nav-right{display:flex}
    .nav-right .btn-ghost{flex:1}
    .related-item{grid-template-columns:1fr}
    .related-thumb{min-height:140px}
    .article-meta{gap:10px}
}
@media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important}
    html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --bg-deep:#071224;
  --bg-deep2:#0A1D3A;
  --bg-card:rgba(255,255,255,0.05);
  --bg-card-hover:rgba(255,255,255,0.08);
  --brt:rgba(255,255,255,0.14);
  --brt-soft:rgba(255,255,255,0.08);
  --accent:#21D9FF;
  --accent-rgb:33,217,255;
  --accent-2:#7B6CFF;
  --gold:#F5C464;
  --txt:#EAF2FF;
  --txt-sub:rgba(234,242,255,0.68);
  --txt-weak:rgba(234,242,255,0.44);
  --txt-dark:#02101F;
  --radius:16px;
  --radius-in:8px;
  --radius-lg:24px;
  --shadow-card:0 18px 50px rgba(0,0,0,0.26);
  --shadow-glow:0 0 20px rgba(var(--accent-rgb),0.32);
  --fs-hero:clamp(2rem,4.8vw,3.4rem);
  --fs-h2:clamp(1.6rem,2.8vw,2.2rem);
  --fs-h3:1.3rem;
  --body-font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --english-font:Roboto,"PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.23,1,.32,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  font-family:var(--body-font);
  background:var(--bg-deep);
  color:var(--txt);
  line-height:1.72;
  font-size:16px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  background-image:
    linear-gradient(rgba(33,217,255,0.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(33,217,255,0.04) 1px,transparent 1px);
  background-size:60px 60px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-200px;
  left:50%;
  width:900px;
  height:600px;
  background:radial-gradient(circle,rgba(33,217,255,0.1) 0%,transparent 70%);
  pointer-events:none;
  filter:blur(40px);
  z-index:0;
}
p{color:var(--txt)}
a{text-decoration:none;color:inherit;transition:color .3s ease}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.btn{transition:all .25s var(--ease)}
.btn:focus-visible,.form-control:focus-visible,input:focus-visible,button:focus-visible{
  outline:2px solid rgba(var(--accent-rgb),0.9)!important;
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(var(--accent-rgb),0.18)!important;
}
.container{max-width:1240px;padding:0 24px}
section{position:relative;z-index:1}

/* 导航 */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1070;
  height:64px;
  background:rgba(7,18,36,0.68);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,0.1);
  transition:background .35s ease,box-shadow .35s ease;
}
.site-header.scrolled{
  background:rgba(5,12,24,0.92);
  box-shadow:0 6px 32px rgba(0,0,0,0.34);
}
.site-header .navbar{
  min-height:64px;
  padding:0 16px;
  position:relative;
}
.navbar-brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:0!important;
  margin-right:32px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:linear-gradient(145deg,rgba(33,217,255,0.3),rgba(123,108,255,0.14));
  border:1px solid rgba(33,217,255,0.5);
  color:var(--accent);
  font-size:17px;
  box-shadow:0 0 16px rgba(33,217,255,0.3),inset 0 0 8px rgba(33,217,255,0.15);
  position:relative;
}
.brand-mark .fa-solid{filter:drop-shadow(0 0 4px rgba(33,217,255,0.8))}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text-strong{
  font-size:21px;
  font-weight:800;
  letter-spacing:.5px;
  color:#fff;
  font-family:var(--english-font);
}
.brand-text-strong small{
  font-size:11px;
  font-weight:600;
  color:var(--accent);
  margin-left:2px;
  letter-spacing:1px;
}
.brand-text-sub{
  font-size:11px;
  color:var(--txt-sub);
  letter-spacing:2px;
}
.navbar-collapse{justify-content:space-between}
.nav-channel{
  display:flex;
  gap:6px;
  align-items:center;
  background:transparent;
  margin:0 auto;
  padding:0;
}
.nav-channel .nav-link{
  padding:8px 15px;
  font-size:14px;
  font-weight:500;
  color:rgba(234,242,255,0.74);
  border-radius:10px;
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
  transition:color .25s ease;
}
.nav-channel .nav-link::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:2px;
  height:2px;
  border-radius:8px;
  background:var(--accent);
  box-shadow:0 0 8px rgba(33,217,255,0.8);
  opacity:0;
  transform:scaleX(0.25);
  transition:opacity .3s ease,transform .3s ease;
}
.nav-channel .nav-link:hover{color:#fff}
.nav-channel .nav-link:hover::after,
.nav-channel .nav-link.active::after{opacity:1;transform:scaleX(1)}
.nav-channel .nav-link.active{
  color:#fff;
  background:rgba(33,217,255,0.09);
}
.nav-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.search-form{
  display:flex;
  align-items:center;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.16);
  border-radius:30px;
  padding:0 6px 0 31px;
  height:40px;
  width:220px;
  position:relative;
  transition:border-color .3s ease,width .3s ease,background .3s ease;
}
.search-form:focus-within{
  width:260px;
  border-color:rgba(33,217,255,0.55);
  background:rgba(255,255,255,0.09);
}
.search-ico{
  position:absolute;
  left:12px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--txt-sub);
  pointer-events:none;
}
.search-form .form-control{
  background:transparent;
  border:none;
  box-shadow:none;
  padding:0;
  height:40px;
  font-size:13px;
  color:#fff;
}
.search-form .form-control::placeholder{color:rgba(234,242,255,0.42)}
.btn-search{
  width:28px;
  height:28px;
  border-radius:50%;
  background:transparent;
  border:none;
  color:var(--accent);
  font-size:13px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .3s ease;
}
.btn-search:hover{background:rgba(33,217,255,0.16)}
.btn-ghost,.btn-go{
  height:40px;
  border-radius:30px;
  padding:0 20px;
  font-size:14px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  letter-spacing:.3px;
  border:1px solid transparent;
}
.btn-ghost{
  background:rgba(255,255,255,0.06);
  border-color:rgba(255,255,255,0.28);
  color:#fff;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.14);
  color:#fff;
  border-color:rgba(255,255,255,0.45);
  transform:translateY(-1px);
}
.btn-go{
  background:var(--accent);
  color:var(--txt-dark);
  font-weight:700;
  box-shadow:var(--shadow-glow);
}
.btn-go:hover{
  background:#55e3ff;
  color:var(--txt-dark);
  transform:scale(1.03);
  box-shadow:0 0 26px rgba(var(--accent-rgb),0.48);
}
.navbar-toggler{
  border:none;
  background:rgba(255,255,255,0.06);
  border-radius:12px;
  padding:8px 12px;
  color:var(--txt);
  font-size:20px;
  box-shadow:none;
}
.navbar-toggler:hover{background:rgba(255,255,255,0.12)}
.navbar-toggler:focus{box-shadow:none;outline:2px solid rgba(33,217,255,0.6)}
@media(max-width:1200px){
  .search-form{width:165px}
  .search-form:focus-within{width:180px}
  .navbar-brand{margin-right:12px}
  .brand-text-strong{font-size:19px}
  .nav-channel .nav-link{padding:8px 10px;font-size:13px}
}
@media(max-width:991px){
  .site-header{height:auto;min-height:64px}
  .navbar{padding-top:8px;padding-bottom:8px}
  .navbar-collapse{
    background:rgba(7,18,36,0.98);
    border-radius:16px;
    padding:18px 17px 24px;
    margin-top:13px;
    border:1px solid rgba(255,255,255,0.12);
    box-shadow:0 20px 45px rgba(0,0,0,0.35);
    flex-direction:column;
    align-items:stretch;
  }
  .nav-channel{
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    margin-bottom:18px;
    width:100%;
  }
  .nav-channel .nav-link{
    font-size:16px;
    padding:12px 16px;
    border-radius:12px;
    background:transparent;
    display:flex;
    align-items:center;
    justify-content:space-between;
    border-bottom:1px solid rgba(255,255,255,0.05);
  }
  .nav-channel .nav-link::after{display:none}
  .nav-channel .nav-link.active,.nav-channel .nav-link:hover{
    background:rgba(33,217,255,0.1);
    color:#fff;
  }
  .nav-right{
    flex-direction:column;
    width:100%;
    gap:9px;
  }
  .search-form{
    width:100%;
  }
  .search-form:focus-within{width:100%}
  .btn-ghost,.btn-go{width:100%}
}

/* hero */
.page-hero{
  margin-top:64px;
  padding:90px 0 76px;
  background-color:var(--bg-deep2);
  position:relative;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,0.09);
}
.page-hero .back-bg{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-3.png);
  background-size:cover;
  background-position:center 40%;
  background-repeat:no-repeat;
}
.page-hero .back-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(7,18,36,0.96) 0%,rgba(7,18,36,0.82) 42%,rgba(10,29,58,0.45) 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-180px;
  left:15%;
  width:430px;
  height:430px;
  background:radial-gradient(circle,rgba(33,217,255,0.18),transparent 70%);
  filter:blur(60px);
  border-radius:50%;
  z-index:1;
}
.page-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;
  flex-wrap:wrap;
  gap:5px;
  font-size:13px;
  color:var(--txt-sub);
  margin-bottom:20px;
}
.crumb a{color:var(--txt-sub)}
.crumb a:hover{color:var(--accent)}
.crumb i{font-size:11px;margin:0 4px;color:var(--txt-weak)}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  padding:8px 17px;
  border-radius:30px;
  color:var(--accent);
  background:rgba(33,217,255,0.14);
  border:1px solid rgba(33,217,255,0.32);
  letter-spacing:1px;
  margin-bottom:18px;
}
.hero-tag::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 10px var(--accent);
}
.page-hero h1{
  font-size:var(--fs-hero);
  font-weight:800;
  letter-spacing:-.5px;
  line-height:1.22;
  max-width:820px;
  color:#fff;
  text-shadow:0 8px 25px rgba(0,0,0,0.25);
}
.page-hero .lead-desc{
  font-size:17px;
  color:var(--txt-sub);
  max-width:760px;
  margin-top:18px;
  line-height:1.8;
}
@media(max-width:768px){
  .page-hero{padding:70px 0 58px}
  .page-hero .lead-desc{font-size:15px}
}

/* doc body */
.cat-main{
  position:relative;
  padding:64px 0 40px;
  background:linear-gradient(180deg,rgba(7,18,36,0.5) 0%,transparent 160px);
}
.doc-wrap{
  display:flex;
  gap:32px;
  align-items:flex-start;
  position:relative;
}
.doc-sidebar{
  width:260px;
  flex-shrink:0;
  position:sticky;
  top:100px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:18px;
  padding:22px 16px;
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.doc-sidebar h4{
  font-size:14px;
  color:var(--txt-sub);
  font-weight:600;
  letter-spacing:1.5px;
  padding:0 10px 15px;
  border-bottom:1px solid rgba(255,255,255,0.1);
  margin-bottom:14px;
}
.side-nav li{display:block}
.side-nav a{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  padding:10px 12px;
  color:rgba(234,242,255,0.72);
  border-radius:11px;
  transition:all .25s ease;
}
.side-nav a .num{
  font-size:11px;
  color:var(--txt-weak);
  font-family:var(--english-font);
  width:22px;
  text-align:right;
}
.side-nav a:hover{
  background:rgba(33,217,255,0.1);
  color:var(--accent);
}
.doc-content{
  flex:1;
  min-width:0;
  background:rgba(255,255,255,0.035);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:20px;
  padding:42px 46px 28px;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  position:relative;
}
@media(max-width:991px){
  .doc-wrap{flex-direction:column}
  .doc-sidebar{
    position:static;
    width:100%;
    padding:16px 18px;
  }
  .side-nav{
    display:flex;
    flex-wrap:wrap;
    gap:6px;
  }
  .side-nav li{width:auto}
  .doc-sidebar h4{width:100%;border:none;padding-bottom:8px;margin-bottom:2px}
  .side-nav a{padding:8px 12px;font-size:13px}
  .side-nav a .num{display:none}
  .doc-content{padding:34px 7px 24px}
}
@media(max-width:520px){
  .doc-content{padding:28px 5px 20px}
}

/* content sections */
.content-sec{
  padding:24px 0 38px;
  border-bottom:1px solid rgba(255,255,255,0.07);
  position:relative;
}
.content-sec:last-child{border-bottom:none}
.content-sec .sec-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.content-sec .sec-head .icon-badge{
  width:42px;
  height:42px;
  border-radius:13px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  color:var(--accent);
  background:rgba(33,217,255,0.13);
  border:1px solid rgba(33,217,255,0.25);
  flex-shrink:0;
}
.content-sec h2{
  font-size:var(--fs-h2);
  font-weight:700;
  color:#fff;
  letter-spacing:.2px;
  line-height:1.3;
  margin:0;
}
.content-sec .lead{
  font-size:15px;
  color:var(--txt-sub);
  margin-top:8px;
  line-height:1.85;
}
.bleed-note{
  display:flex;
  gap:13px;
  align-items:flex-start;
  background:rgba(33,217,255,0.08);
  border:1px solid rgba(33,217,255,0.17);
  border-radius:14px;
  padding:16px 18px;
  font-size:14px;
  color:var(--txt-sub);
  margin:18px 0;
}
.bleed-note i{color:var(--accent);margin-top:4px;font-size:15px}

/* figure mix */
.two-col-mix{
  display:grid;
  grid-template-columns:2fr 3fr;
  gap:28px;
  align-items:center;
  margin-top:22px;
}
.two-col-mix .visual-card{
  border-radius:16px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,0.13);
  background:rgba(255,255,255,0.03);
  box-shadow:0 20px 45px rgba(0,0,0,0.3);
}
.visual-card img{
  width:100%;
  height:240px;
  object-fit:cover;
  transition:transform .7s cubic-bezier(.23,1,.32,1);
}
.visual-card:hover img{transform:scale(1.04)}
.text-note h3{
  font-size:1.3rem;
  font-weight:700;
  margin-bottom:8px;
  color:#fff;
}
.text-note p{color:var(--txt-sub);font-size:14px;line-height:1.85;margin:0}
.vs-list{
  margin-top:16px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.vs-list li{
  display:flex;
  align-items:flex-start;
  gap:11px;
  font-size:14px;
  color:var(--txt-sub);
  padding:10px 14px;
  border-radius:12px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.06);
}
.vs-list li i{
  color:var(--accent);
  font-size:14px;
  padding-top:4px;
}
@media(max-width:768px){
  .two-col-mix{grid-template-columns:1fr;gap:22px}
  .visual-card img{height:200px}
}
/* template cards */
.tpl-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:17px;
  margin:24px 0 10px;
}
.tpl-card{
  background:rgba(255,255,255,0.045);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:16px;
  padding:20px 18px;
  transition:all .3s var(--ease);
  position:relative;
  overflow:hidden;
}
.tpl-card::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:0;
  height:2px;
  border-radius:4px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(33,217,255,0.6);
  opacity:0;
  transform:translateY(4px);
  transition:all .35s ease;
}
.tpl-card:hover{
  background:rgba(255,255,255,0.08);
  transform:translateY(-5px);
  border-color:rgba(33,217,255,0.32);
}
.tpl-card:hover::after{opacity:1;transform:translateY(0)}
.tpl-card .tpl-ico{
  font-size:20px;
  width:46px;
  height:46px;
  background:linear-gradient(145deg,rgba(33,217,255,0.23),rgba(123,108,255,0.1));
  border-radius:13px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--accent);
  margin-bottom:15px;
  border:1px solid rgba(33,217,255,0.14);
}
.tpl-card h3{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:8px;
}
.tpl-card p{
  font-size:13px;
  color:var(--txt-sub);
  line-height:1.65;
  margin:0 0 12px;
}
.tpl-card .file-type{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size:11px;
  font-weight:600;
  color:var(--txt-sub);
  background:rgba(255,255,255,0.05);
  border-radius:20px;
  padding:4px 10px;
}
.tpl-card .file-type i{color:var(--gold);font-size:10px}
@media(max-width:900px){.tpl-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.tpl-grid{grid-template-columns:1fr}}

/* process guide */
.process-guide{
  display:flex;
  flex-direction:column;
  gap:0;
  margin-top:26px;
}
.step-h{
  display:flex;
  gap:18px;
  position:relative;
  padding-bottom:24px;
}
.step-h:last-child{padding-bottom:0}
.step-h::before{
  content:"";
  position:absolute;
  left:16px;
  top:38px;
  bottom:2px;
  width:2px;
  background:linear-gradient(180deg,rgba(33,217,255,0.4),rgba(123,108,255,0.12));
  border-radius:5px;
}
.step-h:last-child::before{display:none}
.step-no{
  width:36px;
  height:36px;
  flex-shrink:0;
  border-radius:12px;
  background:linear-gradient(145deg,rgba(33,217,255,0.18),rgba(255,255,255,0.05));
  border:1px solid rgba(33,217,255,0.3);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:700;
  z-index:1;
  box-shadow:0 0 14px rgba(33,217,255,0.15);
}
.step-card{
  flex:1;
  background:rgba(255,255,255,0.045);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:15px;
  padding:15px 20px;
  transition:background .3s ease,border-color .3s ease;
}
.step-card:hover{background:rgba(33,217,255,0.07);border-color:rgba(33,217,255,0.23)}
.step-card h3{
  font-size:16px;
  color:#fff;
  font-weight:700;
  margin-bottom:4px;
}
.step-card p{
  color:var(--txt-sub);
  font-size:13px;
  margin:0;
}

/* case cards */
.case-doc{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:22px;
}
.case-card-x{
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:18px;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:all .3s var(--ease);
}
.case-card-x:hover{
  transform:translateY(-5px);
  border-color:rgba(33,217,255,0.34);
  background:rgba(255,255,255,0.07);
  box-shadow:var(--shadow-card);
}
.case-thumb{
  height:168px;
  overflow:hidden;
  position:relative;
  background:#0d1c36;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.case-card-x:hover .case-thumb img{transform:scale(1.05)}
.case-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1}
.case-body .channel-tag{
  align-self:flex-start;
  font-size:11px;
  color:var(--accent);
  border:1px solid rgba(33,217,255,0.32);
  background:rgba(33,217,255,0.1);
  border-radius:20px;
  padding:3px 11px;
  letter-spacing:1px;
  margin-bottom:13px;
}
.case-body h3{font-size:16px;color:#fff;font-weight:700;line-height:1.5;margin-bottom:7px}
.case-body .case-desc{
  font-size:13px;
  color:var(--txt-sub);
  line-height:1.75;
  margin:0 0 16px;
}
.case-meta{
  margin-top:auto;
  border-top:1px solid rgba(255,255,255,0.08);
  padding-top:13px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
}
.case-meta .meta-item{
  display:flex;
  align-items:center;
  font-size:12px;
  color:var(--txt-sub);
  gap:6px;
}
.case-meta .meta-item strong{
  color:var(--accent);
  font-size:18px;
  font-family:var(--english-font);
  font-weight:700;
}
@media(max-width:768px){.case-doc{grid-template-columns:1fr}}

/* compliance/ rules */
.rule-list{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.rule-list li{
  display:flex;
  gap:13px;
  align-items:flex-start;
  background:rgba(255,255,255,0.04);
  border-radius:14px;
  padding:14px 17px;
  font-size:14px;
  color:var(--txt-sub);
  border-left:3px solid rgba(33,217,255,0.65);
}
.rule-list li i{color:var(--gold);font-size:14px;padding-top:4px}
.rule-list li strong{color:#fff;font-weight:600}

/* faq accordion */
.accordion-doc{
  margin:24px 0 4px;
}
.accordion-glass{
  background:rgba(255,255,255,0.045);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:16px;
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .3s ease;
}
.accordion-glass:has(.accordion-button:not(.collapsed)){
  border-left:4px solid var(--accent);
}
.accordion-glass .accordion-button{
  background:transparent;
  box-shadow:none;
  color:var(--txt);
  font-size:15px;
  font-weight:600;
  padding:18px 21px;
  border-radius:16px!important;
  min-height:48px;
}
.accordion-glass .accordion-button:not(.collapsed){
  background:rgba(33,217,255,0.06);
  color:#fff;
}
.accordion-glass .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2321D9FF'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
}
.accordion-glass .accordion-button:focus{box-shadow:none;outline:none}
.accordion-body{
  font-size:14px;
  color:var(--txt-sub);
  line-height:1.8;
  padding:6px 22px 22px;
}
@media(max-width:768px){
  .accordion-glass .accordion-button{font-size:14px;padding:16px 16px}
}

/* CTA block */
.cta-light{
  position:relative;
  margin:48px 0 60px;
  border-radius:24px;
  background:linear-gradient(130deg,rgba(10,29,58,0.96),rgba(7,18,36,0.9));
  border:1px solid rgba(33,217,255,0.2);
  padding:42px 46px;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  box-shadow:0 28px 70px rgba(0,0,0,0.32);
}
.cta-light::before{
  content:"";
  position:absolute;
  right:-150px;
  top:-180px;
  width:470px;
  height:470px;
  background:radial-gradient(circle,rgba(33,217,255,0.2),transparent 65%);
  pointer-events:none;
}
.cta-light::after{
  content:"";
  position:absolute;
  left:-130px;
  bottom:-230px;
  width:400px;
  height:400px;
  background:radial-gradient(circle,rgba(123,108,255,0.18),transparent 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;flex:1.3;min-width:0}
.cta-copy h2{
  font-size:1.65rem;
  font-weight:800;
  color:#fff;
  letter-spacing:.3px;
  margin-bottom:8px;
}
.cta-copy p{
  color:var(--txt-sub);
  font-size:14px;
  max-width:520px;
  margin:0;
}
.cta-btn{
  position:relative;
  z-index:1;
  flex-shrink:0;
  display:flex;
  flex-wrap:wrap;
  gap:11px;
}
.btn-cta-primary{
  height:46px;
  padding:0 25px;
  border-radius:30px;
  background:var(--accent);
  color:var(--txt-dark);
  font-weight:700;
  border:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:all .3s var(--ease);
  box-shadow:0 0 18px rgba(33,217,255,0.25);
}
.btn-cta-primary:hover{background:#55e3ff;transform:translateY(-2px);box-shadow:0 0 28px rgba(33,217,255,0.45)}
.btn-cta-ghost{
  height:46px;
  padding:0 22px;
  border-radius:30px;
  background:rgba(255,255,255,0.05);
  color:#fff;
  font-weight:600;
  border:1px solid rgba(255,255,255,0.35);
  display:inline-flex;
  align-items:center;
  gap:7px;
  transition:.3s ease;
}
.btn-cta-ghost:hover{background:rgba(255,255,255,0.14);color:#fff;transform:translateY(-2px);border-color:rgba(255,255,255,0.7)}
@media(max-width:768px){
  .cta-light{flex-direction:column;padding:30px 23px}
  .cta-copy h2{font-size:1.35rem}
  .cta-btn{width:100%}
  .btn-cta-primary,.btn-cta-ghost{flex:1;min-height:48px;justify-content:center}
}

/* footer */
.footer{
  position:relative;
  background:rgba(4,10,19,0.95);
  border-top:1px solid rgba(33,217,255,0.16);
  padding:64px 0 0;
  margin-top:30px;
  z-index:1;
}
.footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(33,217,255,0.6),transparent);
}
.footer-logo-col .navbar-brand{margin-bottom:15px}
.foot-about{
  color:rgba(234,242,255,0.55);
  font-size:13px;
  line-height:1.75;
  max-width:300px;margin-top:5px;
}
.footer-title{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  position:relative;
  padding-bottom:9px;
}
.footer-title::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:24px;height:2px;
  background:var(--accent);
  border-radius:4px;
}
.footer-links li,.footer-contact li{margin-bottom:10px}
.footer-links a,.footer-contact span{
  font-size:13px;
  color:rgba(234,242,255,0.62);
  transition:color .3s ease,padding-left .3s ease;
}
.footer-links a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13px;
  color:rgba(234,242,255,0.62);
}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:14px;width:17px;text-align:center}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);
  margin-top:38px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:18px 0;
  gap:10px;
  font-size:12px;
  color:rgba(234,242,255,0.45);
}
.footer-bottom a{color:rgba(234,242,255,0.6)}
.footer-bottom a:hover{color:var(--accent)}
@media(max-width:768px){
  .footer{padding-top:42px}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category2 */
:root {
  --bg-deep: #071224;
  --bg-deep-2: #0A1D3A;
  --primary: #21D9FF;
  --violet: #7B6CFF;
  --gold: #F5C464;
  --text-main: #EAF2FF;
  --text-sub: rgba(234,242,255,0.68);
  --text-muted: rgba(234,242,255,0.44);
  --border-light: rgba(255,255,255,0.14);
  --border-soft: rgba(255,255,255,0.08);
  --glass: rgba(255,255,255,0.05);
  --glass-strong: rgba(255,255,255,0.10);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-card: 0 18px 45px -18px rgba(0,0,0,0.65);
  --shadow-primary: 0 0 20px 0 rgba(33,217,255,0.32);
  --header-height: 64px;
  --section-space: 88px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(1200px 620px at 78% -10%, rgba(123,108,255,0.13), transparent 60%),
    radial-gradient(900px 460px at 4% 18%, rgba(33,217,255,0.07), transparent 55%),
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(180deg, #071224 0%, #081A32 45%, #071224 100%);
  background-size: auto, auto, 46px 46px, 46px 46px, auto;
  background-attachment: fixed;
}

img { max-width: 100%; height: auto; display: inline-block; }

a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: #78E6FF; }

button, input { font: inherit; }
button { cursor: pointer; }

::selection { background: rgba(33,217,255,0.28); color: #fff; }

h1,h2,h3,h4,h5,h6 {
  margin-top: 0;
  color: #fff;
  letter-spacing: -0.02em;
}

.container {
  max-width: 1200px;
}

section[id], div[id] {
  scroll-margin-top: 96px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1040;
  background: rgba(7,18,36,0.76);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.navbar {
  min-height: var(--header-height);
  padding: 0;
  gap: 10px;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  color: var(--text-main);
  margin: 0;
  flex-shrink: 0;
}
.navbar-brand:hover { color: #fff; }

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(33,217,255,0.18), rgba(123,108,255,0.2));
  border: 1px solid rgba(33,217,255,0.45);
  color: var(--primary);
  font-size: 17px;
  box-shadow: 0 0 18px rgba(33,217,255,0.14);
}

.brand-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-text-strong {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
}
.brand-text-strong small {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  color: var(--primary);
  padding: 1px 6px;
  margin-left: 4px;
  border: 1px solid rgba(33,217,255,0.36);
  border-radius: 20px;
  background: rgba(33,217,255,0.1);
  vertical-align: middle;
}
.brand-text-sub {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 2.5px;
  color: var(--text-sub);
  text-transform: uppercase;
}

.navbar-collapse {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-grow: 1;
}

.nav-channel {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0 0 0 10px;
  padding: 0;
  flex-wrap: nowrap;
}
.nav-channel .nav-link {
  display: block;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  padding: 20px 9px;
  position: relative;
}
.nav-channel .nav-link::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: 10px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), rgba(33,217,255,0.1));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .22s ease;
}
.nav-channel .nav-link:hover,
.nav-channel .nav-link.active {
  color: #fff;
}
.nav-channel .nav-link:hover::after,
.nav-channel .nav-link.active::after {
  transform: scaleX(1);
}
.nav-channel .nav-link.active {
  font-weight: 600;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.navbar-toggler {
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text-main);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: rgba(255,255,255,0.04);
}
.navbar-toggler:focus {
  outline: 2px solid var(--primary);
  box-shadow: none;
}

/* ---------- Buttons & Form ---------- */
.btn {
  border-radius: 10px;
  padding: 0.64rem 1.3rem;
  font-weight: 600;
  border: 0;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  line-height: 1.4;
}

.btn:focus-visible,
.form-control:focus-visible,
.nav-link:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(33,217,255,0.15);
}

.btn-go {
  background: var(--primary);
  color: #02101F;
  box-shadow: 0 0 18px rgba(33,217,255,0.22);
}
.btn-go:hover {
  color: #02101F;
  background: #55E4FF;
  transform: scale(1.02);
  box-shadow: 0 0 28px rgba(33,217,255,0.35);
}
.btn-go:active {
  transform: scale(0.99);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.22);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(33,217,255,0.55);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost:active {
  transform: translateY(0);
}

.search-form {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 50px;
  width: 210px;
  height: 42px;
  padding: 0 6px 0 14px;
  transition: width .25s ease, border-color .25s ease, background .25s ease;
}
.search-form:focus-within {
  width: 250px;
  border-color: rgba(33,217,255,0.55);
  background: rgba(255,255,255,0.1);
  box-shadow: 0 0 0 3px rgba(33,217,255,0.1);
}
.search-ico { color: var(--text-muted); font-size: 14px; margin-right: 5px; }
.search-form .form-control {
  border: 0;
  background: transparent;
  box-shadow: none;
  color: #fff;
  font-size: 13px;
  padding-left: 0;
  margin: 0;
}
.search-form .form-control::placeholder { color: rgba(234,242,255,0.45); }
.search-form .form-control:focus { box-shadow: none; background: transparent; }
.btn-search {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 0;
  background: rgba(33,217,255,0.22);
  color: var(--primary);
  font-size: 13px;
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
}

/* ---------- Mobile CTA ---------- */
.mobile-fixed-cta {
  display: none;
}

/* ---------- Footer ---------- */
.footer {
  background: rgba(5,13,27,0.92);
  border-top: 1px solid rgba(33,217,255,0.18);
  padding: 56px 0 28px;
  position: relative;
}
.footer::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(33,217,255,0.65), transparent);
}
.footer .navbar-brand { margin-bottom: 18px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-title {
  font-size: 16px;
  margin-bottom: 18px;
  color: #fff;
  font-weight: 600;
}
.footer-links,
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  color: var(--text-sub);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 0;
}
.footer-links a:hover { color: var(--primary); }
.footer-contact li {
  display: flex;
  gap: 10px;
  color: var(--text-sub);
  font-size: 14px;
  margin-bottom: 12px;
  align-items: flex-start;
}
.footer-contact li i {
  color: var(--primary);
  font-size: 15px;
  margin-top: 4px;
  width: 20px;
  text-align: center;
}
.foot-about {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
  max-width: 360px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 22px;
}
.footer-bottom a {
  color: rgba(234,242,255,0.58);
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ---------- Page Hero ---------- */
.page-hero {
  position: relative;
  padding: 76px 0 60px;
  background-image:
    linear-gradient(90deg, rgba(7,18,36,0.95) 0%, rgba(7,18,36,0.82) 40%, rgba(10,29,58,0.45) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.page-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(33,217,255,0.16), transparent 65%);
  pointer-events: none;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb-list li::before { content: "/"; margin-right: 8px; color: rgba(255,255,255,0.2); }
.breadcrumb-list li:first-child::before { display: none; }
.breadcrumb-list a { color: var(--text-sub); }
.breadcrumb-list a:hover { color: var(--primary); }
.breadcrumb-list li[aria-current="page"] { color: rgba(234,242,255,0.5); }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(33,217,255,0.1);
  border: 1px solid rgba(33,217,255,0.32);
  color: var(--primary);
  padding: 5px 13px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 20px;
}

.category-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.28;
  margin-bottom: 14px;
}
.category-title .title-sep {
  color: rgba(255,255,255,0.23);
  margin: 0 8px;
}
.category-title .text-theme {
  background: linear-gradient(90deg, var(--primary), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 720px;
  margin-bottom: 26px;
}
.hero-tools { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 220px;
}
.hero-visual::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 1px dashed rgba(33,217,255,0.35);
  animation: spinSlow 24s linear infinite;
}
.hero-visual::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(123,108,255,0.15);
}
@keyframes spinSlow { from { transform: rotate(0); } to { transform: rotate(360deg); } }

.hero-panel {
  z-index: 1;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 22px;
  padding: 10px;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(255,255,255,0.04);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  width: 260px;
}
.hero-panel .login-panel-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px 10px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.hero-panel .panel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}
.hero-panel .panel-dot + .panel-dot {
  background: rgba(255,255,255,0.3);
  box-shadow: none;
}
.hero-panel .hero-img-wrap { border-radius: 14px; overflow: hidden; }
.hero-panel img { width: 100%; height: 150px; object-fit: cover; display: block; }

/* ---------- Category Body ---------- */
.category-body {
  padding: 68px 0 80px;
}

.doc-aside {
  position: sticky;
  top: 88px;
}

.side-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 22px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  margin-bottom: 20px;
  box-shadow: var(--shadow-card);
}
.side-card .side-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
  border-left: 3px solid var(--primary);
  padding-left: 12px;
}
.side-sub {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 16px;
}

.doc-nav {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}
.doc-nav li + li {
  border-top: 1px dashed rgba(255,255,255,0.08);
}
.doc-nav a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-sub);
  padding: 11px 2px;
  position: relative;
}
.doc-nav a i { font-size: 10px; color: var(--primary); opacity: 0.7; }
.doc-nav a:hover,
.doc-nav a.active {
  color: var(--primary);
}
.doc-nav a.active { color: var(--primary); font-weight: 600; }

.side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  list-style: none;
  margin: 12px 0 16px;
}
.side-tags span {
  background: rgba(123,108,255,0.1);
  border: 1px solid rgba(123,108,255,0.18);
  color: rgba(234,242,255,0.78);
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 50px;
}
.side-cta h4 {
  font-size: 17px;
  color: #fff;
  margin-bottom: 8px;
  font-weight: 700;
}
.side-cta p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.doc-main {
  min-width: 0;
}

.content-section {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: clamp(22px, 3vw, 36px);
  margin-bottom: 32px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.content-section::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), rgba(33,217,255,0.03));
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  background: rgba(33,217,255,0.08);
  border: 1px solid rgba(33,217,255,0.18);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.content-section h2 {
  font-size: 27px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: -0.4px;
}
.content-section h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #fff;
}
.content-section p {
  color: rgba(234,242,255,0.72);
  margin-bottom: 16px;
}
.content-section p + p { margin-top: -8px; }

.lead-callout {
  border-left: 3px solid var(--primary);
  background: rgba(33,217,255,0.06);
  border-radius: 0 14px 14px 0;
  padding: 14px 18px;
  color: rgba(234,242,255,0.78);
  margin: 22px 0;
}

/* Checklist */
.ready-grid,
.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 0;
  list-style: none;
  margin: 18px 0 0;
}
.ready-card {
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 16px;
  padding: 18px 18px 16px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.ready-card:hover {
  transform: translateY(-3px);
  border-color: rgba(33,217,255,0.45);
  background: rgba(33,217,255,0.07);
}
.ready-card i {
  width: 22px;
  height: 22px;
  margin-top: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary);
  font-size: 15px;
}
.ready-card strong {
  color: #fff;
  font-size: 15px;
  display: block;
}
.ready-card span {
  color: var(--text-sub);
  font-size: 13px;
  line-height: 1.6;
}

/* Timeline steps */
.step-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  position: relative;
}
.step-item {
  position: relative;
  padding: 0 0 34px 78px;
}
.step-item:last-child {
  padding-bottom: 0;
}
.phase-line {
  position: absolute;
  left: 27px;
  top: 62px;
  bottom: -2px;
  width: 2px;
  background: linear-gradient(180deg, rgba(33,217,255,0.6), rgba(123,108,255,0.18));
}
.step-item:last-child .phase-line { display: none; }
.phase-circle {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: var(--primary);
  background: rgba(33,217,255,0.1);
  border: 1px solid rgba(33,217,255,0.4);
  box-shadow: 0 0 18px rgba(33,217,255,0.1);
  letter-spacing: -0.5px;
}
.step-content {
  background: rgba(255,255,255,0.036);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 18px;
  padding: 20px 22px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.step-content:hover {
  border-color: rgba(33,217,255,0.34);
  transform: translateX(4px);
  box-shadow: 0 14px 32px -22px rgba(0,0,0,0.8);
}
.step-content h3 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 5px;
}
.step-content h3 .step-tag {
  font-size: 11px;
  color: var(--gold);
  background: rgba(245,196,100,0.12);
  border: 1px solid rgba(245,196,100,0.2);
  padding: 2px 9px;
  border-radius: 50px;
  font-weight: 600;
  border-radius: 20px;
}
.step-content p { margin-bottom: 8px; color: rgba(234,242,255,0.72); }
.step-extra {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}
.step-extra li {
  color: var(--text-sub);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.step-extra li i {
  color: var(--primary);
  font-size: 12px;
}

/* Status section */
.status-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 24px;
}
.status-node {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 18px;
  position: relative;
}
.status-node i {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  font-size: 15px;
  color: var(--primary);
  background: rgba(33,217,255,0.12);
  border: 1px solid rgba(33,217,255,0.24);
  margin-bottom: 12px;
}
.status-node strong {
  display: block;
  color: #fff;
  font-size: 14px;
  margin-bottom: 4px;
}
.status-node span {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.6;
}

/* FAQ */
.faq-item {
  background: rgba(255,255,255,0.036);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s ease;
}
.faq-item:has(.show),
.faq-item:hover {
  border-color: rgba(33,217,255,0.3);
}
.faq-q {
  background: transparent;
  border: 0;
  width: 100%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  transition: color .2s ease, background .2s ease;
  border-radius: 0;
}
.faq-q:hover {
  color: var(--primary);
}
.faq-q[aria-expanded="true"] i {
  transform: rotate(180deg);
}
.faq-q i {
  color: var(--primary);
  font-size: 14px;
  transition: transform .25s ease;
}
.faq-a {
  color: var(--text-sub);
  font-size: 14px;
  line-height: 1.75;
  padding: 0 22px 20px;
}

/* Bottom CTA */
.bottom-cta {
  margin-top: 44px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(33,217,255,0.22);
  border-radius: 22px;
  padding: 36px 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.bottom-cta::before {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(33,217,255,0.12), transparent 65%);
  pointer-events: none;
}
.bottom-cta h2 {
  margin-bottom: 8px;
  font-size: 24px;
}
.bottom-cta p {
  color: var(--text-sub);
  margin-bottom: 0;
  font-size: 14px;
}
.bottom-cta .btn-group-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  position: relative;
  z-index: 1;
}

/* Responsive */
@media (max-width: 1199.98px) {
  .navbar-expand-xl .navbar-nav .nav-link,
  .navbar-expand-xl .navbar-nav .dropdown-menu { padding: 0; }

  .navbar-collapse {
    width: 100%;
    display: block !important;
    overflow-y: auto;
    align-items: stretch;
    padding: 0 0 14px;
    max-height: calc(100vh - 70px);
  }
  .nav-channel {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    margin: 12px 0 12px;
    width: 100%;
  }
  .nav-channel .nav-link {
    padding: 13px 14px;
    border-radius: 12px;
    font-size: 15px;
    white-space: normal;
  }
  .nav-channel .nav-link::after { display: none; }
  .nav-channel .nav-link:hover,
  .nav-channel .nav-link.active {
    background: rgba(33,217,255,0.08);
    color: var(--primary);
  }
  .nav-right {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-top: 4px;
  }
  .search-form {
    width: 100%;
    margin: 0 0 8px;
  }
  .search-form:focus-within { width: 100%; }
  .search-form .btn-search { margin-left: auto; }
  .nav-right .btn {
    width: 100%;
    min-height: 44px;
  }
}

@media (max-width: 991.98px) {
  .category-title { font-size: 36px; }
  .hero-visual { margin-top: 18px; }
  .hero-panel { width: 220px; }
  .hero-panel img { height: 130px; }
  .doc-aside {
    position: static;
    margin-bottom: 18px;
  }
  .status-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .ready-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
}

@media (min-width: 768px) and (max-width: 1199.98px) {
  .navbar-expand-xl .navbar-collapse {
    display: block !important;
    visibility: visible !important;
  }
}

@media (max-width: 767.98px) {
  :root { --section-space: 56px; }
  body {
    padding-bottom: 0;
  }
  .category-body { padding: 44px 0 70px; }
  .page-hero { padding: 48px 0 44px; }
  .category-title { font-size: 30px; }
  .hero-badge { margin-bottom: 16px; }
  .hero-lead { font-size: 15px; }
  .ready-grid,
  .info-grid { grid-template-columns: 1fr; }
  .status-grid { grid-template-columns: 1fr; }
  .step-item { padding-left: 0; }
  .phase-circle {
    position: relative;
    margin-bottom: 18px;
  }
  .phase-line { display: none !important; }
  .step-content { padding: 20px 18px; }
  .step-content h3 {
    flex-direction: column;
    align-items: flex-start;
  }
  .content-section {
    border-radius: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .bottom-cta {
    flex-direction: column;
    align-items: stretch;
    padding: 28px 22px;
  }
  .btn-group-wrap .btn {
    flex: 1;
  }
  .mobile-fixed-cta {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, rgba(7,18,36,0.1), rgba(7,18,36,0.88) 40%);
    z-index: 1030;
    justify-content: center;
    border-top: 1px solid rgba(33,217,255,0.16);
  }
  .mobile-fixed-cta .btn-go {
    width: 100%;
  }
  .nav-right .btn-go {
    display: none;
  }
  .footer {
    padding-bottom: 90px;
  }
}

@media (min-width: 768px) and (max-width: 1199.98px) {
  .nav-right .btn-go { display: inline-flex; }
}

@media (min-width: 1200px) {
  .nav-right .btn-go { display: inline-flex; }
}

@media (max-width: 375px) {
  .category-title { font-size: 27px; }
  .content-section h2 { font-size: 23px; }
  .navbar-brand .brand-text-strong { font-size: 18px; }
  .brand-text-sub { letter-spacing: 1px; font-size: 10px; }
}